Here is the most basic example of how to add two numbers in Python.

#!/usr/bin/python
print(1 + 1)

It is much more common to store the result in a variable.

#!/usr/bin/python
result = (1 + 1)
print(result)

Which should return the following.

2

Increment

Here is an example of how to increment a value.

#!/usr/bin/python3
value = 0
print(f"value = {value}")

value += 1
print(f"value = {value}")

Which should produce the following.

value = 0
value = 1

An increment is often used as part of a while loop.

#!/usr/bin/python3

attempt = 0

while attempt < 5:
  print(f"{attempt} is less than 5")
  attempt += 1

Should produce the following output.

0 is less than 5 
1 is less than 5 
2 is less than 5 
3 is less than 5 
4 is less than 5

Decimal numbers

By default, decimal will be used.

#!/usr/bin/python
result = (1.1 + 1.1)
print(result)

Which should return the following.

2.2

Whole numbers

round can be used to round to whole numbers.

#!/usr/bin/python
result = round(1.1 + 1.1)
print(result)

Which should return the following.

2.0