Python 3

• Source: https://www.pythoncheatsheet.org/cheatsheet/basics

Basics

Data Types

Data Type	Examples
Integers	-2, -1, 0, 1, 2, 3, 4, 5
Floating-point numbers	-1.25, -1.0, --0.5, 0.0, 0.5, 1.0, 1.25
Strings	'a', 'aa', 'aaa', 'Hello!', '11 cats'
Lists	['John', 'Peter', 'Debora', 'Charles']
Tuples	('table', 'chair', 'rack', 'shelf')
Dictionaries	{'color': 'red', 'age': 42}

Control Flow

if statements

if name != 'George':
    print('You are not George')

if name != 'George':
    print('You are not George')
else:
    print('You are George')

if name == 'Debora':
    print('Hi Debora!')
elif name == 'George':
    print('Hi George!')
else:
    print('Who are you?')

while Loop statements

spam = 0
while spam < 5:
    print('Hello, world.')
    spam = spam + 1

for loop

pets = ['Bella', 'Milo', 'Loki']
for pet in pets:
    print(pet)

for i in range(5):
    print(f'Will stop at 5! or 4? ({i})')

Operators

Math Operators

Operators	Operation	Example
**	Exponent	2 ** 3 = 8
%	Modulus/Remainder	22 % 8 = 6
//	Integer division	22 // 8 = 2
/	Division	22 / 8 = 2.75
*	Multiplication	3 * 3 = 9
-	Subtraction	5 - 2 = 3
+	Addition	2 + 2 = 4

Comparison Operators

Operator	Meaning
==	Equal to
!=	Not equal to
<	Less than
>	Greater Than
<=	Less than or Equal to
>=	Greater than or Equal to

Boolean Operators

Operator and

Expression	Result
True and True	True
True and False	False
False and True	False
False and False	False

Operator or

Expression	Result
True or True	True
True or False	True
False or True	True
False and False	False

Operator not

Expression	Result
not True	False
not False	True