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Add common functions code
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‎README.md

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@@ -14,4 +14,5 @@ repository breaks up the code into individual .py files, and the full tutorial f
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7. [Python While And For Loops](https://vegibit.com/python-while-and-for-loops/)
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8. [Python Recursion Examples](https://vegibit.com/python-recursion-examples/)
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9. [Python Comprehension Tutorial](https://vegibit.com/python-comprehension-tutorial/)
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10. [Python Function Tutorial](https://vegibit.com/python-function-tutorial/)
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10. [Python Function Tutorial](https://vegibit.com/python-function-tutorial/)
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11. [Commonly Built In Functions](https://vegibit.com/commonly-used-python-built-in-functions/)

‎builtinfunctions.py

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# the len() function
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meat = 'Bacon'
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print('Bacon has ' + str(len(meat)) + ' characters')
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# Bacon has 5 characters
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veggie = 'Broccoli'
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print('Broccoli has ' + str(len(veggie)) + ' characters')
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# Broccoli has 8 characters
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tickers = ['lk', 'msft', 'bynd', 'crc']
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print('There are ' + str(len(tickers)) + ' tickers in the list')
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# There are 4 tickers in the list
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for i in range(0, len(tickers)):
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print(tickers[i])
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# lk
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# msft
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# bynd
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# crc
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listofints = [1, 2, 3, 4, 5, 6, 7]
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print(len(listofints))
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# 7
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tickerprices = {'lk': 45.50, 'msft': 165.70, 'crc': 8.25}
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print('There are ' + str(len(tickerprices)) + ' tickers in the dictionary')
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# There are 3 tickers in the dictionary
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mixedtypes = [tickers, listofints, tickerprices, 'Superbowl', True]
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print('There are ' + str(len(mixedtypes)) + ' items in the mixed list')
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# There are 5 items in the mixed list
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# range() and list()
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team_members = range(25)
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print(team_members)
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print(len(team_members))
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# 25
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print(list(team_members))
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# [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24]
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for player in list(team_members):
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print('Player ' + str(player))
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# Player 0
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# Player 1
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# Player 2
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# Player 3
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# Player 4
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# Player 5
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# Player 6
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# Player 7
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# Player 8
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# Player 9
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# Player 10
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# Player 11
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# Player 12
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# Player 13
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# Player 14
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# Player 15
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# Player 16
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# Player 17
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# Player 18
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# Player 19
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# Player 20
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# Player 21
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# Player 22
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# Player 23
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# Player 24
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team_a = []
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team_b = []
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for player in team_members:
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if player % 2 == 0:
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team_a.append(list(team_members).pop(player))
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else:
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team_b.append(list(team_members).pop(player))
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for player in team_a:
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print('Player ' + str(player) + ' is on team A')
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for player in team_b:
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print('Player ' + str(player) + ' is on team B')
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# Player 0 is on team A
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# Player 2 is on team A
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# Player 4 is on team A
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# Player 6 is on team A
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# Player 8 is on team A
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# Player 10 is on team A
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# Player 12 is on team A
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# Player 14 is on team A
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# Player 16 is on team A
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# Player 18 is on team A
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# Player 20 is on team A
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# Player 22 is on team A
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# Player 24 is on team A
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# Player 1 is on team B
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# Player 3 is on team B
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# Player 5 is on team B
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# Player 7 is on team B
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# Player 9 is on team B
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# Player 11 is on team B
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# Player 13 is on team B
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# Player 15 is on team B
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# Player 17 is on team B
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# Player 19 is on team B
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# Player 21 is on team B
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# Player 23 is on team B
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# min() and max()
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print(max(-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5))
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# 5
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print(min(-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5))
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# -5
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jeans = 40
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sweater = 50
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shoes = 100
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print(min(jeans, sweater, shoes))
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# 40
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print(max(jeans, sweater, shoes))
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# 100
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print(min('Kohls', 'Target'))
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# Kohls
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print(min('Bed Bath Beyond', 'Best Buy', 'Applebees'))
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# Applebees
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tshirt = 15
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print(min(tshirt, sweater, jeans, shoes))
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# 15
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print(max(tshirt, sweater, jeans, shoes))
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# 100
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# round() abs() and pow()
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frappuccino = 4.72
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print(round(frappuccino))
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# 5
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blueberrypie = 3.14159265359
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print(round(blueberrypie, 4))
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# 3.1416
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intnum = -7
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print('Absolute value of -7 is:', abs(intnum))
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# Absolute value of -7 is: 7
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floatnum = -2.75
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print('Absolute value of -2.75 is:', abs(floatnum))
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# Absolute value of -2.75 is: 2.75
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plantroot = -2.5
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print(abs(plantroot))
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# 2.5
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print(pow(2, 10))
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# 1024
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# sorted()
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randomnums = [12, -54, 32, 15, -7, 44]
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sortednums = sorted(randomnums)
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print(sortednums)
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# [-54, -7, 12, 15, 32, 44]
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reversednums = sorted(randomnums, reverse=True)
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print(reversednums)
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# [44, 32, 15, 12, -7, -54]
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stores = ['Kohls', 'Target', 'Best Buy', 'Walmart', 'Costco']
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print(sorted(stores))
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# ['Best Buy', 'Costco', 'Kohls', 'Target', 'Walmart']
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print(sorted(stores, reverse=True))
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# ['Walmart', 'Target', 'Kohls', 'Costco', 'Best Buy']
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stock_prices = {'Apple': 318.38, 'Google': 1487.64, 'Microsoft': 165.27, 'Cisco': 49.06}
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for key in sorted(stock_prices.keys()):
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print(key, stock_prices[key])
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# Apple 318.38
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# Cisco 49.06
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# Google 1487.64
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# Microsoft 165.27
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for key, value in sorted(stock_prices.items(), key=lambda item: item[1]):
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print(key, value)
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# Cisco 49.06
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# Microsoft 165.27
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# Apple 318.38
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# Google 1487.64
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for key in sorted(stock_prices.keys(), reverse=True):
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print(key, stock_prices[key])
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# Microsoft 165.27
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# Google 1487.64
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# Cisco 49.06
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# Apple 318.38
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for key, value in sorted(stock_prices.items(), key=lambda item: item[1], reverse=True):
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print(key, value)
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# Google 1487.64
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# Apple 318.38
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# Microsoft 165.27
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# Cisco 49.06
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shirts = [('Blue', 'XL', 25), ('Red', 'L', 15), ('Green', 'S', 10), ('Yellow', 'M', 20)]
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print(sorted(shirts, key=lambda item: item[0]))
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# [('Blue', 'XL', 25), ('Green', 'S', 10), ('Red', 'L', 15), ('Yellow', 'M', 20)]
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print(sorted(shirts, key=lambda item: item[1]))
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# [('Red', 'L', 15), ('Yellow', 'M', 20), ('Green', 'S', 10), ('Blue', 'XL', 25)]
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print(sorted(shirts, key=lambda item: item[2]))
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# [('Green', 'S', 10), ('Red', 'L', 15), ('Yellow', 'M', 20), ('Blue', 'XL', 25)]
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# type() and isinstance()
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r = range(0, 20)
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print(type(r))
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# <class 'range'>
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print(type(7))
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# <class 'int'>
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print(type('Z'))
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# <class 'str'>
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print(type('A simple string'))
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# <class 'str'>
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class Car:
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def __init__(self, make, model, color):
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self.make = make
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self.model = model
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self.color = color
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class Truck(Car):
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def fourwheeldrive(self):
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print('four wheel drive engaged')
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car = Car('Honda', 'Civic', 'Blue')
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print(type(car))
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# <class '__main__.Car'>
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tesla = Car('Tesla', 'Model 3', 'White')
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print(type(tesla))
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# <class '__main__.Car'>
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truck = Truck('Toyota', 'Tacoma', 'Red')
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print(type(truck))
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# <class '__main__.Truck'>
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print(type(car) == type(truck))
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# False
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print(type(car) == type(tesla))
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# True
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print(isinstance(car, Car))
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# True
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print(isinstance(truck, Car))
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# True

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