Bad `type` operand placementPTC-W0024

The type() call shall be placed on the left side of the comparison when checking the type of one object against another type. This affects readability.

Not preferred

x = 42
if int is type(x):
    print('This is an integer')

Preferred

x = 42
if type(x) is int:
    print('This is an integer')

Or even better, use isinstance:

x = 42
if isinstance(x, int):
    print('This is an integer')