Keyword

Description: None represents the absence of a value.

Example:

>>> def f(x):

…                x

…

…

…

>>> print(f(2))

None

Keyword

Syntax: nonlocal

Description: Use nonlocal to declare a variable is not local. See Python documentation for more details.

Keyword

Syntax: not x

Description: Evaluates to True if x is False and False otherwise. Pastes with space before and after the keyword not. Edit as needed.

Example:

>>> not 2<5             #edit the space before not

False

>>>3<8 and not 2<5

False