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Commit 19167df

Browse files
Standard library and modules
1 parent 2da4a48 commit 19167df

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4 files changed

+113
-11
lines changed

4 files changed

+113
-11
lines changed

‎basic_data_types/numbers.py‎

Lines changed: 19 additions & 11 deletions
Original file line numberDiff line numberDiff line change
@@ -2,9 +2,12 @@
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# NUMBERS
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#####
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5+
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num_1 = 3
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num_2 = 3.14
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print(num_1)
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print(type(num_1)) # Type Int
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print(type(num_2)) # Type Float
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@@ -17,37 +20,41 @@
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# Multiplication: 3 * 2
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# Division: 3 / 2
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# Floor Division: 3 // 2 # Removes the decimal part
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# Exponent: 3 ** 2
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# Exponent: 3 ** 4
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# Modulus: 3 % 2
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# Try
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print(3 % 2)
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print('Prova operazioni base:')
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print(7 % 4)
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# Arithmetic variables
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num = 1
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num = num + 1
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print(num) # 2
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num = 3
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num = num + 4
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print('Prova somma num = num + 1:')
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print(num) # 7
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num = 1
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num +=2
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print(num) # 3
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num = 2
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num *=4
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print(num) # 8
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print('\n')
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# Absolute value
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print(abs(-10)) # 3
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num = -10
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num = abs(num)
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print(num) # 10
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# Rounding
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print(round(3.75))
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print(round(3.45))
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print(round(3.75, 1))
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print(round(3.768, 2))
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print(round(3.762, 2))
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print('\n')
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# COMPARISONS:
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# Equal: 3 == 2
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# Not Equal 3 != 2
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# Not Equal: 3 != 2
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# Greater Than: 3 > 2
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# Less Than: 3 < 2
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# Grater or Equal: 3 >= 2
@@ -56,6 +63,7 @@
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num_1 = 3
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num_2 = 2
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print('Comparisons:')
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print(num_1 == num_2) # Returns and prints a boolean
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print(num_1 != num_2)
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print(num_1 <= num_2)

‎modules/modules_usage.py‎

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,23 @@
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#####
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# MODULES USAGE EXAMPLE
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#####
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courses = ['Art', 'Maths', 'History', 'CS']
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# Import the module and use an alias
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import my_module as m
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# Use the module
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index = m.find_index(courses, 'History')
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print(index)
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# Import a single function and a single variable
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from my_module import find_index, string
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print(string)
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# Import all
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from my_module import *
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# --------------------> <-------------------- #

‎modules/my_module.py‎

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Original file line numberDiff line numberDiff line change
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#####
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# MY MODULE EXAMPLE
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#####
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print('Module imported')
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string = 'Test'
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def find_index(structure, target):
10+
for i, value in enumerate(structure):
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if value == target:
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return i
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return -1
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# --------------------> <-------------------- #

‎modules/standard_library.py‎

Lines changed: 54 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,54 @@
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#####
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# STANDARD LIBRARY
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#####
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import sys
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# print(sys.path) # See the current sys path
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# What will happen if we try to import a module from a different directory?
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# Python can't find it
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# We must add the path
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sys.path.append('~/ale/Desktop/my_modules')
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# print(sys.path)
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# Or we can add to the PATH environment variable (Different from Linux to Windows)
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# ---------- Linux ----------
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# nano ~/.bash_profile
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# export PYTHONPATH="~/ale/Desktop/my_modules"
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# Standard Library is one of the best resources already written
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# EXAMPLE
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# Work with random module
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import random
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courses = ['Art', 'Maths', 'History', 'CS']
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random_course = random.choice(courses)
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print(random_course + '\n')
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# Work with math module
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import math
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rads = math.radians(90) # pi/2
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print('{}\n'.format(math.sin(rads))) # 1
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# Work with time and date module
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import datetime
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import calendar
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today = datetime.date.today()
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print(today) # Today's date
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44+
print('{}\n'.format(calendar.isleap(2019))) # Leap year?
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# Work with os module
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import os
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print(os.getcwd()) # Current working directory
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print(os.__file__) # Where the entire standard library is located
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# --------------------> <-------------------- #

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