A Short notes on Python Programming

Assignment statements

The general form of an assignment statement:

variable = expression

Example assignment statements:

>>> base = 20

>>> height = 12

>>> area = base * height / 2

>>> area

120.0

The rules for executing an assignment statement:

1.     Evaluate the expression. This produces a memory address.

2.     Store the memory address in the variable.

Variable names

The rules for legal Python names:

1.     Names must start with a letter or _.

2.     Names must contain only letters, digits, and _.

For Python, in most situations, the convention is to use pothole_case.