Python

• Open-source, interpreted and dynamic language
• Created in 1991, by a developer named Guido Van Rossum.
• Most popular Python web frameworks are: Django, Flask, Falcon, Pyramid, and Bottle

Minimalistic Python Docs: https://pythonbasics.org/

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Download from: https://www.python.org/downloads/

Use python3 --version to see if python 3 is installed and print its version (on Windows it could be python --version)

To run a python file use python3 filename.py - don't forget the .py at the end (on Windows it could be python filename.py)

Examples

# For loop 1
for i in range(1, 6):
    print(i)

# For loop 2
fruits = ["apple", "banana", "cherry"]
for fruit in fruits:
    print(fruit)

# Nested For loops
for i in range(3):
    for j in range(2):
        print(f"({i}, {j})")

# While loop
count = 0
while count < 5:
    print(count)
    count += 1

# Example of a list comprehension
numbers = [1, 2, 3, 4, 5]
squared_numbers = [x ** 2 for x in numbers]
print(squared_numbers)
# iterates over an iterable and applies an expression to each element to generate a new list.

Data types

If you want to specify the data type, you can use the following constructor functions:

x = str("Hello World")
x = int(20)
x = float(20.5)
x = complex(1j)
x = list(("apple", "banana", "cherry"))
x = tuple(("apple", "banana", "cherry"))
x = range(6)
x = dict(name="John", age=36)
x = set(("apple", "banana", "cherry"))
x = frozenset(("apple", "banana", "cherry"))
x = bool(5)
x = bytes(5)
x = bytearray(5)
x = memoryview(bytes(5))