Python Functions and Methods
mehul
GitHub
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{
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"cells": [
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"# Function Practice Exercises\n",
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"\n",
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"Problems are arranged in increasing difficulty:\n",
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"* Warmup - these can be solved using basic comparisons and methods\n",
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"* Level 1 - these may involve if/then conditional statements and simple methods\n",
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"* Level 2 - these may require iterating over sequences, usually with some kind of loop\n",
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"* Challenging - these will take some creativity to solve"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"## WARMUP SECTION:"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"#### LESSER OF TWO EVENS: Write a function that returns the lesser of two given numbers *if* both numbers are even, but returns the greater if one or both numbers are odd\n",
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" lesser_of_two_evens(2,4) --> 2\n",
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" lesser_of_two_evens(2,5) --> 5"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 1,
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"metadata": {},
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"outputs": [],
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"source": [
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"def lesser_of_two_evens(a,b):\n",
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" if a%2==0 and b%2==0:\n",
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" return min((a,b))\n",
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" else:\n",
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" return max((a,b))"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 2,
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"metadata": {},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"2"
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]
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},
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"execution_count": 2,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"# Check\n",
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"lesser_of_two_evens(2,4)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 6,
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"metadata": {},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"5"
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]
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},
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"execution_count": 6,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"# Check\n",
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"lesser_of_two_evens(2,5)"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"#### ANIMAL CRACKERS: Write a function takes a two-word string and returns True if both words begin with same letter\n",
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" animal_crackers('Levelheaded Llama') --> True\n",
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" animal_crackers('Crazy Kangaroo') --> False"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 29,
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"metadata": {},
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"outputs": [],
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"source": [
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"def animal_crackers(text):\n",
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" mylist = text.split()\n",
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" if mylist[0][0].lower() == mylist[1][0].lower():\n",
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" return True\n",
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" else:\n",
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" return False"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 30,
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"metadata": {},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"True"
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]
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},
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"execution_count": 30,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"# Check\n",
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"animal_crackers('Levelheaded Llama')"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 31,
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"metadata": {},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"False"
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]
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},
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"execution_count": 31,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"# Check\n",
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"animal_crackers('Crazy Kangaroo')"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"#### MAKES TWENTY: Given two integers, return True if the sum of the integers is 20 *or* if one of the integers is 20. If not, return False\n",
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"\n",
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" makes_twenty(20,10) --> True\n",
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" makes_twenty(12,8) --> True\n",
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" makes_twenty(2,3) --> False"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 32,
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"metadata": {},
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"outputs": [],
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"source": [
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"def makes_twenty(n1,n2):\n",
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" if n1 == 20 or n2 == 20 or sum((n1,n2))==20:\n",
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" return True\n",
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" else:\n",
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" return False"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 33,
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"metadata": {},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"True"
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]
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},
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"execution_count": 33,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"# Check\n",
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"makes_twenty(20,10)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 34,
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"metadata": {},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"False"
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]
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},
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"execution_count": 34,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"# Check\n",
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"makes_twenty(2,3)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 35,
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"metadata": {},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"True"
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]
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},
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"execution_count": 35,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"# Check\n",
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"makes_twenty(12,8)"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"# LEVEL 1 PROBLEMS"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"#### OLD MACDONALD: Write a function that capitalizes the first and fourth letters of a name\n",
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" \n",
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" old_macdonald('macdonald') --> MacDonald\n",
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" \n",
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"Note: `'macdonald'.capitalize()` returns `'Macdonald'`"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 61,
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"metadata": {},
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"outputs": [],
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"source": [
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"def old_macdonald(name):\n",
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" mylist = []\n",
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" for index,value in enumerate(name):\n",
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" if index in (0,3):\n",
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" mylist.append(value.upper())\n",
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" else:\n",
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" mylist.append(value)\n",
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" \n",
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" return ''.join(mylist)\n",
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" "
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]
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},
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{
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"cell_type": "code",
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"execution_count": 62,
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"metadata": {},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"'MacDonald'"
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]
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},
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"execution_count": 62,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"# Check\n",
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"old_macdonald('macdonald')"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"#### MASTER YODA: Given a sentence, return a sentence with the words reversed\n",
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"\n",
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" master_yoda('I am home') --> 'home am I'\n",
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" master_yoda('We are ready') --> 'ready are We'\n",
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" \n",
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"Note: The .join() method may be useful here. The .join() method allows you to join together strings in a list with some connector string. For example, some uses of the .join() method:\n",
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"\n",
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" >>> \"--\".join(['a','b','c'])\n",
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" >>> 'a--b--c'\n",
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"\n",
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"This means if you had a list of words you wanted to turn back into a sentence, you could just join them with a single space string:\n",
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"\n",
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" >>> \" \".join(['Hello','world'])\n",
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" >>> \"Hello world\""
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]
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},
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{
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"cell_type": "code",
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"execution_count": 86,
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"metadata": {},
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"outputs": [],
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"source": [
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"def master_yoda(text):\n",
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" mylist = text.split()\n",
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" yodalist = []\n",
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" for word in mylist[::-1]:\n",
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" yodalist += word+\" \"\n",
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" \n",
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" return ''.join(yodalist) "
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]
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},
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{
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"cell_type": "code",
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"execution_count": 87,
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"metadata": {},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"'home am I '"
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]
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},
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"execution_count": 87,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"# Check\n",
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"master_yoda('I am home')"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 83,
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"metadata": {},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"'ready are We '"
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]
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},
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"execution_count": 83,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"# Check\n",
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"master_yoda('We are ready')"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"#### ALMOST THERE: Given an integer n, return True if n is within 10 of either 100 or 200\n",
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"\n",
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" almost_there(90) --> True\n",
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" almost_there(104) --> True\n",
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" almost_there(150) --> False\n",
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" almost_there(209) --> True\n",
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" \n",
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"NOTE: `abs(num)` returns the absolute value of a number"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 128,
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"metadata": {},
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"outputs": [],
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"source": [
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"def almost_there(n):\n",
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" if abs(100-n) <= 10 or abs(200-n) <= 10:\n",
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" return True\n",
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" else:\n",
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" return False"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 129,
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"metadata": {},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"True"
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]
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},
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"execution_count": 129,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"# Check\n",
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"almost_there(104)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 130,
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"metadata": {},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"False"
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]
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},
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"execution_count": 130,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"# Check\n",
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"almost_there(150)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 131,
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"metadata": {},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"True"
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]
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},
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"execution_count": 131,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"# Check\n",
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"almost_there(209)"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"# LEVEL 2 PROBLEMS"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"#### FIND 33: \n",
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"\n",
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"Given a list of ints, return True if the array contains a 3 next to a 3 somewhere.\n",
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"\n",
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" has_33([1, 3, 3]) → True\n",
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" has_33([1, 3, 1, 3]) → False\n",
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" has_33([3, 1, 3]) → False"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 151,
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"metadata": {},
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"outputs": [],
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"source": [
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"def has_33(nums):\n",
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" #print(list(item for item in zip(nums,nums[1:])))\n",
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" for x,y in zip(nums,nums[1:]):\n",
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" if x == y == 3:\n",
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" return True\n",
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" return False\n",
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" \n",
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" "
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]
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},
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{
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"cell_type": "code",
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"execution_count": 152,
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"metadata": {},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"True"
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]
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},
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"execution_count": 152,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"# Check\n",
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"has_33([1, 3, 3])"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 153,
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"metadata": {},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"False"
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]
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},
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"execution_count": 153,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"# Check\n",
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"has_33([1, 3, 1, 3])"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 154,
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"metadata": {},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"False"
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]
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},
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"execution_count": 154,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"# Check\n",
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"has_33([3, 1, 3])"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "markdown",
|
||||
"metadata": {},
|
||||
"source": [
|
||||
"#### PAPER DOLL: Given a string, return a string where for every character in the original there are three characters\n",
|
||||
" paper_doll('Hello') --> 'HHHeeellllllooo'\n",
|
||||
" paper_doll('Mississippi') --> 'MMMiiissssssiiippppppiii'"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 157,
|
||||
"metadata": {},
|
||||
"outputs": [],
|
||||
"source": [
|
||||
"def paper_doll(text):\n",
|
||||
" mylist = []\n",
|
||||
" for letter in text:\n",
|
||||
" mylist.append(letter*3)\n",
|
||||
" return ''.join(mylist)"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 158,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"data": {
|
||||
"text/plain": [
|
||||
"'HHHeeellllllooo'"
|
||||
]
|
||||
},
|
||||
"execution_count": 158,
|
||||
"metadata": {},
|
||||
"output_type": "execute_result"
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"# Check\n",
|
||||
"paper_doll('Hello')"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 159,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"data": {
|
||||
"text/plain": [
|
||||
"'MMMiiissssssiiissssssiiippppppiii'"
|
||||
]
|
||||
},
|
||||
"execution_count": 159,
|
||||
"metadata": {},
|
||||
"output_type": "execute_result"
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"# Check\n",
|
||||
"paper_doll('Mississippi')"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "markdown",
|
||||
"metadata": {},
|
||||
"source": [
|
||||
"#### BLACKJACK: Given three integers between 1 and 11, if their sum is less than or equal to 21, return their sum. If their sum exceeds 21 *and* there's an eleven, reduce the total sum by 10. Finally, if the sum (even after adjustment) exceeds 21, return 'BUST'\n",
|
||||
" blackjack(5,6,7) --> 18\n",
|
||||
" blackjack(9,9,9) --> 'BUST'\n",
|
||||
" blackjack(9,9,11) --> 19"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 177,
|
||||
"metadata": {},
|
||||
"outputs": [],
|
||||
"source": [
|
||||
"def blackjack(a,b,c):\n",
|
||||
" if sum((a,b,c)) <= 21:\n",
|
||||
" return sum((a,b,c))\n",
|
||||
" elif (a or b or c) == 11:\n",
|
||||
" return sum((a,b,c)) - 10\n",
|
||||
" else:\n",
|
||||
" return 'BUST'"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 178,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"data": {
|
||||
"text/plain": [
|
||||
"True"
|
||||
]
|
||||
},
|
||||
"execution_count": 178,
|
||||
"metadata": {},
|
||||
"output_type": "execute_result"
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"(9 or 11) <= 60"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 179,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"data": {
|
||||
"text/plain": [
|
||||
"18"
|
||||
]
|
||||
},
|
||||
"execution_count": 179,
|
||||
"metadata": {},
|
||||
"output_type": "execute_result"
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"# Check\n",
|
||||
"blackjack(5,6,7)"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 180,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"ename": "TypeError",
|
||||
"evalue": "argument of type 'int' is not iterable",
|
||||
"output_type": "error",
|
||||
"traceback": [
|
||||
"\u001b[1;31m---------------------------------------------------------------------------\u001b[0m",
|
||||
"\u001b[1;31mTypeError\u001b[0m Traceback (most recent call last)",
|
||||
"\u001b[1;32m<ipython-input-180-ef261d118a84>\u001b[0m in \u001b[0;36m<module>\u001b[1;34m()\u001b[0m\n\u001b[0;32m 1\u001b[0m \u001b[1;31m# Check\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[1;32m----> 2\u001b[1;33m \u001b[0mblackjack\u001b[0m\u001b[1;33m(\u001b[0m\u001b[1;36m9\u001b[0m\u001b[1;33m,\u001b[0m\u001b[1;36m9\u001b[0m\u001b[1;33m,\u001b[0m\u001b[1;36m9\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0m",
|
||||
"\u001b[1;32m<ipython-input-177-73895faa56ca>\u001b[0m in \u001b[0;36mblackjack\u001b[1;34m(a, b, c)\u001b[0m\n\u001b[0;32m 2\u001b[0m \u001b[1;32mif\u001b[0m \u001b[0msum\u001b[0m\u001b[1;33m(\u001b[0m\u001b[1;33m(\u001b[0m\u001b[0ma\u001b[0m\u001b[1;33m,\u001b[0m\u001b[0mb\u001b[0m\u001b[1;33m,\u001b[0m\u001b[0mc\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m)\u001b[0m \u001b[1;33m<=\u001b[0m \u001b[1;36m21\u001b[0m\u001b[1;33m:\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0;32m 3\u001b[0m \u001b[1;32mreturn\u001b[0m \u001b[0msum\u001b[0m\u001b[1;33m(\u001b[0m\u001b[1;33m(\u001b[0m\u001b[0ma\u001b[0m\u001b[1;33m,\u001b[0m\u001b[0mb\u001b[0m\u001b[1;33m,\u001b[0m\u001b[0mc\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[1;32m----> 4\u001b[1;33m \u001b[1;32melif\u001b[0m \u001b[1;33m(\u001b[0m\u001b[0ma\u001b[0m \u001b[1;32mor\u001b[0m \u001b[0mb\u001b[0m \u001b[1;32mor\u001b[0m \u001b[0mc\u001b[0m\u001b[1;33m)\u001b[0m \u001b[1;32min\u001b[0m \u001b[1;36m11\u001b[0m\u001b[1;33m:\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0m\u001b[0;32m 5\u001b[0m \u001b[1;32mreturn\u001b[0m \u001b[0msum\u001b[0m\u001b[1;33m(\u001b[0m\u001b[1;33m(\u001b[0m\u001b[0ma\u001b[0m\u001b[1;33m,\u001b[0m\u001b[0mb\u001b[0m\u001b[1;33m,\u001b[0m\u001b[0mc\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m)\u001b[0m \u001b[1;33m-\u001b[0m \u001b[1;36m10\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0;32m 6\u001b[0m \u001b[1;32melse\u001b[0m\u001b[1;33m:\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n",
|
||||
"\u001b[1;31mTypeError\u001b[0m: argument of type 'int' is not iterable"
|
||||
]
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"# Check\n",
|
||||
"blackjack(9,9,9)"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 173,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"data": {
|
||||
"text/plain": [
|
||||
"'BUST'"
|
||||
]
|
||||
},
|
||||
"execution_count": 173,
|
||||
"metadata": {},
|
||||
"output_type": "execute_result"
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"# Check\n",
|
||||
"blackjack(9,9,11)"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "markdown",
|
||||
"metadata": {},
|
||||
"source": [
|
||||
"#### SUMMER OF '69: Return the sum of the numbers in the array, except ignore sections of numbers starting with a 6 and extending to the next 9 (every 6 will be followed by at least one 9). Return 0 for no numbers.\n",
|
||||
" \n",
|
||||
" summer_69([1, 3, 5]) --> 9\n",
|
||||
" summer_69([4, 5, 6, 7, 8, 9]) --> 9\n",
|
||||
" summer_69([2, 1, 6, 9, 11]) --> 14"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": null,
|
||||
"metadata": {
|
||||
"collapsed": true
|
||||
},
|
||||
"outputs": [],
|
||||
"source": [
|
||||
"def summer_69(arr):\n",
|
||||
" pass"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": null,
|
||||
"metadata": {
|
||||
"collapsed": true
|
||||
},
|
||||
"outputs": [],
|
||||
"source": [
|
||||
"# Check\n",
|
||||
"summer_69([1, 3, 5])"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": null,
|
||||
"metadata": {
|
||||
"collapsed": true
|
||||
},
|
||||
"outputs": [],
|
||||
"source": [
|
||||
"# Check\n",
|
||||
"summer_69([4, 5, 6, 7, 8, 9])"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": null,
|
||||
"metadata": {
|
||||
"collapsed": true
|
||||
},
|
||||
"outputs": [],
|
||||
"source": [
|
||||
"# Check\n",
|
||||
"summer_69([2, 1, 6, 9, 11])"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "markdown",
|
||||
"metadata": {},
|
||||
"source": [
|
||||
"# CHALLENGING PROBLEMS"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "markdown",
|
||||
"metadata": {},
|
||||
"source": [
|
||||
"#### SPY GAME: Write a function that takes in a list of integers and returns True if it contains 007 in order\n",
|
||||
"\n",
|
||||
" spy_game([1,2,4,0,0,7,5]) --> True\n",
|
||||
" spy_game([1,0,2,4,0,5,7]) --> True\n",
|
||||
" spy_game([1,7,2,0,4,5,0]) --> False\n"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": null,
|
||||
"metadata": {
|
||||
"collapsed": true
|
||||
},
|
||||
"outputs": [],
|
||||
"source": [
|
||||
"def spy_game(nums):\n",
|
||||
" pass"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": null,
|
||||
"metadata": {
|
||||
"collapsed": true
|
||||
},
|
||||
"outputs": [],
|
||||
"source": [
|
||||
"# Check\n",
|
||||
"spy_game([1,2,4,0,0,7,5])"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": null,
|
||||
"metadata": {
|
||||
"collapsed": true
|
||||
},
|
||||
"outputs": [],
|
||||
"source": [
|
||||
"# Check\n",
|
||||
"spy_game([1,0,2,4,0,5,7])"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": null,
|
||||
"metadata": {
|
||||
"collapsed": true
|
||||
},
|
||||
"outputs": [],
|
||||
"source": [
|
||||
"# Check\n",
|
||||
"spy_game([1,7,2,0,4,5,0])"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "markdown",
|
||||
"metadata": {},
|
||||
"source": [
|
||||
"#### COUNT PRIMES: Write a function that returns the *number* of prime numbers that exist up to and including a given number\n",
|
||||
" count_primes(100) --> 25\n",
|
||||
"\n",
|
||||
"By convention, 0 and 1 are not prime."
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": null,
|
||||
"metadata": {
|
||||
"collapsed": true
|
||||
},
|
||||
"outputs": [],
|
||||
"source": [
|
||||
"def count_primes(num):\n",
|
||||
" pass\n",
|
||||
" "
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": null,
|
||||
"metadata": {
|
||||
"collapsed": true
|
||||
},
|
||||
"outputs": [],
|
||||
"source": [
|
||||
"# Check\n",
|
||||
"count_primes(100)"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "markdown",
|
||||
"metadata": {},
|
||||
"source": [
|
||||
"### Just for fun:\n",
|
||||
"#### PRINT BIG: Write a function that takes in a single letter, and returns a 5x5 representation of that letter\n",
|
||||
" print_big('a')\n",
|
||||
" \n",
|
||||
" out: * \n",
|
||||
" * *\n",
|
||||
" *****\n",
|
||||
" * *\n",
|
||||
" * *\n",
|
||||
"HINT: Consider making a dictionary of possible patterns, and mapping the alphabet to specific 5-line combinations of patterns. <br>For purposes of this exercise, it's ok if your dictionary stops at \"E\"."
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": null,
|
||||
"metadata": {
|
||||
"collapsed": true
|
||||
},
|
||||
"outputs": [],
|
||||
"source": [
|
||||
"def print_big(letter):\n",
|
||||
" pass"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": null,
|
||||
"metadata": {
|
||||
"collapsed": true
|
||||
},
|
||||
"outputs": [],
|
||||
"source": [
|
||||
"print_big('a')"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "markdown",
|
||||
"metadata": {},
|
||||
"source": [
|
||||
"## Great Job!"
|
||||
]
|
||||
}
|
||||
],
|
||||
"metadata": {
|
||||
"kernelspec": {
|
||||
"display_name": "Python 3",
|
||||
"language": "python",
|
||||
"name": "python3"
|
||||
},
|
||||
"language_info": {
|
||||
"codemirror_mode": {
|
||||
"name": "ipython",
|
||||
"version": 3
|
||||
},
|
||||
"file_extension": ".py",
|
||||
"mimetype": "text/x-python",
|
||||
"name": "python",
|
||||
"nbconvert_exporter": "python",
|
||||
"pygments_lexer": "ipython3",
|
||||
"version": "3.6.5"
|
||||
}
|
||||
},
|
||||
"nbformat": 4,
|
||||
"nbformat_minor": 2
|
||||
}
|
||||
|
|
@ -0,0 +1,448 @@
|
|||
{
|
||||
"cells": [
|
||||
{
|
||||
"cell_type": "markdown",
|
||||
"metadata": {},
|
||||
"source": [
|
||||
"## Methods and Functions"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 8,
|
||||
"metadata": {},
|
||||
"outputs": [],
|
||||
"source": [
|
||||
"mylist = [num for num in range(0,11)]"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 17,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"data": {
|
||||
"text/plain": [
|
||||
"'e'"
|
||||
]
|
||||
},
|
||||
"execution_count": 17,
|
||||
"metadata": {},
|
||||
"output_type": "execute_result"
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"mystring = 'hello'\n",
|
||||
"mystring[1]"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 21,
|
||||
"metadata": {},
|
||||
"outputs": [],
|
||||
"source": [
|
||||
"#pig latin\n",
|
||||
"\n",
|
||||
"def pig_latin(myword):\n",
|
||||
" vowel = 'aeiou'\n",
|
||||
" if myword[0] in vowel:\n",
|
||||
" myword += 'ay'\n",
|
||||
" else:\n",
|
||||
" myword = myword[1:] + myword[0] + 'ay'\n",
|
||||
" \n",
|
||||
" return myword\n",
|
||||
" "
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 25,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"data": {
|
||||
"text/plain": [
|
||||
"'appleay'"
|
||||
]
|
||||
},
|
||||
"execution_count": 25,
|
||||
"metadata": {},
|
||||
"output_type": "execute_result"
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"pig_latin('apple')"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 106,
|
||||
"metadata": {},
|
||||
"outputs": [],
|
||||
"source": [
|
||||
"# Function to return a string like aBcDeF\n",
|
||||
"\n",
|
||||
"def morph(mystring):\n",
|
||||
" process_string = []\n",
|
||||
" for index,value in enumerate(mystring):\n",
|
||||
" if (index+1)%2==0:\n",
|
||||
" process_string.append(value.upper())\n",
|
||||
" else:\n",
|
||||
" process_string.append(value.lower())\n",
|
||||
" \n",
|
||||
" return ''.join(process_string)"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 107,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"data": {
|
||||
"text/plain": [
|
||||
"'hIwHaTsThEdEaL'"
|
||||
]
|
||||
},
|
||||
"execution_count": 107,
|
||||
"metadata": {},
|
||||
"output_type": "execute_result"
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"morph('hiWhatstheDeal')"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "markdown",
|
||||
"metadata": {},
|
||||
"source": [
|
||||
"### *args and **kwargs"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 30,
|
||||
"metadata": {},
|
||||
"outputs": [],
|
||||
"source": [
|
||||
"d = {'k1':1,'k2':20}"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 32,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"data": {
|
||||
"text/plain": [
|
||||
"21"
|
||||
]
|
||||
},
|
||||
"execution_count": 32,
|
||||
"metadata": {},
|
||||
"output_type": "execute_result"
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"sum(d.values())"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 39,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"data": {
|
||||
"text/plain": [
|
||||
"55"
|
||||
]
|
||||
},
|
||||
"execution_count": 39,
|
||||
"metadata": {},
|
||||
"output_type": "execute_result"
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"sum(list(num for num in range(0,11)))"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 40,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"data": {
|
||||
"text/plain": [
|
||||
"11"
|
||||
]
|
||||
},
|
||||
"execution_count": 40,
|
||||
"metadata": {},
|
||||
"output_type": "execute_result"
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"sum((3,4,4))"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 41,
|
||||
"metadata": {},
|
||||
"outputs": [],
|
||||
"source": [
|
||||
"myset = {2,3,4,4}"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 43,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"data": {
|
||||
"text/plain": [
|
||||
"{2, 3, 4}"
|
||||
]
|
||||
},
|
||||
"execution_count": 43,
|
||||
"metadata": {},
|
||||
"output_type": "execute_result"
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"myset"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 44,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"data": {
|
||||
"text/plain": [
|
||||
"9"
|
||||
]
|
||||
},
|
||||
"execution_count": 44,
|
||||
"metadata": {},
|
||||
"output_type": "execute_result"
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"sum(myset)"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 45,
|
||||
"metadata": {},
|
||||
"outputs": [],
|
||||
"source": [
|
||||
"# using args\n",
|
||||
"\n",
|
||||
"def percent(*args):\n",
|
||||
" \"\"\"\n",
|
||||
" function to return 5% of the sum of the parameters passed\n",
|
||||
" \"\"\"\n",
|
||||
" return sum(args)*0.05\n"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 46,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"name": "stdout",
|
||||
"output_type": "stream",
|
||||
"text": [
|
||||
"Help on function percent in module __main__:\n",
|
||||
"\n",
|
||||
"percent(*args)\n",
|
||||
" function to return 5% of the sum of the parameters passed\n",
|
||||
"\n"
|
||||
]
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"help(percent)"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 50,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"data": {
|
||||
"text/plain": [
|
||||
"5.0"
|
||||
]
|
||||
},
|
||||
"execution_count": 50,
|
||||
"metadata": {},
|
||||
"output_type": "execute_result"
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"percent(34,56,10)"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 51,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"data": {
|
||||
"text/plain": [
|
||||
"0.5"
|
||||
]
|
||||
},
|
||||
"execution_count": 51,
|
||||
"metadata": {},
|
||||
"output_type": "execute_result"
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"percent(10)"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 72,
|
||||
"metadata": {},
|
||||
"outputs": [],
|
||||
"source": [
|
||||
"def myfunc(*args):\n",
|
||||
" mylist = []\n",
|
||||
" for num in args:\n",
|
||||
" if num%2==0:\n",
|
||||
" mylist.append(num)\n",
|
||||
" return mylist"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 73,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"data": {
|
||||
"text/plain": [
|
||||
"[2, 4, 6, 2, 6, 8]"
|
||||
]
|
||||
},
|
||||
"execution_count": 73,
|
||||
"metadata": {},
|
||||
"output_type": "execute_result"
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"myfunc(2,4,6,2,6,8,3,5)"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 55,
|
||||
"metadata": {},
|
||||
"outputs": [],
|
||||
"source": [
|
||||
"# using kwargs\n",
|
||||
"\n",
|
||||
"def my_func(**kwargs):\n",
|
||||
" print (kwargs)\n",
|
||||
" \n",
|
||||
" if 'France' in kwargs:\n",
|
||||
" print ('Les Blues is {}'.format(kwargs['France']))"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 56,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"name": "stdout",
|
||||
"output_type": "stream",
|
||||
"text": [
|
||||
"{'France': 1, 'Brazil': 2, 'Germany': 3}\n",
|
||||
"Les Blues is 1\n"
|
||||
]
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"my_func(France = 1, Brazil = 2, Germany = 3)"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 70,
|
||||
"metadata": {},
|
||||
"outputs": [],
|
||||
"source": [
|
||||
"# using both together\n",
|
||||
"\n",
|
||||
"def futbol(*args,**kwargs):\n",
|
||||
" print(args)\n",
|
||||
" print(kwargs)\n",
|
||||
" print(f\"The roster of {kwargs['Brazil']} is {args[0]} \")"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 71,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"name": "stdout",
|
||||
"output_type": "stream",
|
||||
"text": [
|
||||
"(1, 2, 3)\n",
|
||||
"{'France': 'blue', 'Brazil': 'yellow'}\n",
|
||||
"The roster of yellow is 1 \n"
|
||||
]
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"futbol(1,2,3,France='blue',Brazil='yellow')"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": null,
|
||||
"metadata": {},
|
||||
"outputs": [],
|
||||
"source": []
|
||||
}
|
||||
],
|
||||
"metadata": {
|
||||
"kernelspec": {
|
||||
"display_name": "Python 3",
|
||||
"language": "python",
|
||||
"name": "python3"
|
||||
},
|
||||
"language_info": {
|
||||
"codemirror_mode": {
|
||||
"name": "ipython",
|
||||
"version": 3
|
||||
},
|
||||
"file_extension": ".py",
|
||||
"mimetype": "text/x-python",
|
||||
"name": "python",
|
||||
"nbconvert_exporter": "python",
|
||||
"pygments_lexer": "ipython3",
|
||||
"version": "3.6.5"
|
||||
}
|
||||
},
|
||||
"nbformat": 4,
|
||||
"nbformat_minor": 2
|
||||
}
|
||||
Loading…
Reference in New Issue