Python

Download & installation

it can be downloaded from https://www.python.org/

in command prompt type

python3

to run new version

create a file with extension .py

print("Hello world")
print("*" * 10)

Run it with python3 app.py the result will be

Hello World
**********

it's a Microsoft extension for Linting, Debugging, intellisense, code formatting, refactoring

in vs Code bottom left corner change version to new one by clicking it and click pylint message to install it.

By Jun Han with yellow .run logo

Ctrl + Alt + N to run code automatically

in preferences -> extra ... -> user settings -> code-runner-executorMap -> update python to python3

(on the right side after the last settings type "code-runner-executorMap" and hit enter. Then change it.

x = 1
y = 2

instead we can use

x, y = 1, 2

boolean

is_published = True

course="Python Programming"
print(len(course))   -> 18
print(course[0])     -> P
print(course[-1])    -> g

slicing

print(course[0:3])    -> Pyt
print(course[:3])    -> Pyt

Case

print(course.upper())    -> PYTHON PROGRAMMING
print(course.lower())    -> python programming
print(course.title())    -> Python Programming

trim

print(course.rstrip())
print(course.lstrip())
print(course.strip())

substring

print(course.find("Pro"))
print(course.replace("P", "-"))
print("Pro" in course)
print("Pro" not in course)

Shift + Cmd + M -> opens Problem window

Shift + Cmd + P -> Command Palette -> Format Document ->

Preferences -> FormatOnSave -> True : Formats doc on save