New refactorings and how to write a Sourcery plugin

BooleanIfExpIdentity

New Refactorings

Enumerate

Loop counters that are incremented on each iteration of the loop like so:

i = 0
for animal in animals:
    i += 1
    print(i, animal)

can be replaced with a call to enumerate with a suitable start index:

for i, animal in enumerate(animals, start=1):
    print(i, animal)

Boolean IfExp identity

The following simple but overly verbose code:

return True if some_boolean_expression else False

is refactored to:

return bool(some_boolean_expression)

The negated version:

return False if some_boolean_expression else True

is refactored to:

return not some_boolean_expression

Writing a code editor plugin documentation

Instructions for how to write a code editor plugin are now available here. As the Sourcery binary implements the Language Server Protocol it is very easy to write a plugin for a new code editor.

Website changes