No return in an init function

Docs > Code Analysis > Static Analysis Rules > No return in an __init__ function

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Metadata

ID: python-best-practices/init-no-return-value

Language: Python

Severity: Info

Category: Error Prone

Description

The __init__ method (and the __new__ method) should never return a non-None value.

Learn More

__init__ function on the Python datamodel documentation

Non-Compliant Code Examples

class Foo:
	def __init__(self):
		#  __init__ should not return a value
		return 3

	def my_method():
		return 10

Compliant Code Examples

class Foo:
	def __init__(self):
		pass

How to use this rule

1
2
rulesets:
  - python-best-practices     # Rules to enforce Python best practices.

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