PYTHON SHORT NOTES

VARIABLES & STRINGS:

Variables are used to store values. A string is a series of characters, surrounded by single or double quotes.

Hello world

print("Hello world!")

Hello world with a variable

msg = "Hello world!" print(msg)

Concatenation (combining strings)

first_name = 'albert' last_name = 'einstein'

full_name = first_name + ' ' + last_name print(full_name)

LISTS:

A list stores a series of items in a particular order. You access items using an index, or within a loop.

Make a list

bikes = ['trek', 'redline', 'giant']

Get the first item in a list

first_bike = bikes[0]

Get the last item in a list

last_bike = bikes[-1]

Looping through a list

for bike in bikes: print(bike)

Adding items to a list

bikes = [] bikes.append('trek') bikes.append('redline') bikes.append('giant')

Making numerical lists

squares = []

for x in range(1, 11): squares.append(x**2)

CollegeTak