Python

Python

Python is a programming Language. To make a script (aka program) in python there are two ways:

• file

> nano script.py
/* edit *
> python script.py
Result

• interpreter

> python
>>>> //write commands here and enter to run

Comments

# this line doesnt run

printing

To print something to the screen

print("Hello World")

Hello World

strings

Strings are basically text (aka a series of characters). To convert something like a number to a string you can use 2 methods:

• convert to a string and add to a string example:

	i = 2 # this is a number
	my_str = "Two = " + str(i)
	print(my_str)

Two = 2

• Use String formatting (f before string and variable or expresion in brackets) example:

i = 2
	my_str = f"Two = {i}"
	print(my_str)

Two = 2

for loop

do something N times (giving a variable values from I to N)

for variable in range(from, to, step):
# "step" defaults to 1 and "from" to 0. 
# to is not included
# needs tab to put code inside a loop
	do this

#example
for i in range(10):
	print(i)
print("Once")

0
1
2
3
4
5
6
7
8
9
Once