Unlike other programming languages, there is no keyword in Python to declare variables. Instead, a variable is created when you assign a value to it.

myAge = 16

The value within the variable can be reassigned using the assignment (=) operator and concatenated with other variables using the (+) operator.

In Python, functions are decclared using the keyword def followed by the function name, any parameters, and a colon (:). See example below:

def say_hello(name):

return "Hello " + name

It is important to note the indentation. Any code that belongs within a function needs to be indented for Python to recognize it as being a part of that function.

There are a multitude of modules that can be imported and used in a Python script. To import a module, simply use the keyword import followed by the module name:

import calendar

Then, you should be able to use all of the functions that are included in the module:

>>> import calendar
>>> cal = calendar.month(2021, 5)
>>> print(cal)

May 2021

Mo Tu We Th Fr Sa Su
1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
31

>>>

In Python, libraries are a collection of modules. Similar to importing modules, libraries are imported using the from keyword and the import keyword. See example below:

from math import pi

def get_area_of_circle(r):
area = r*r* pi
return area