``++__all__++`` is used to define the list of module's names that should be imported when ``++from package import *++`` is used. For that reason, it may only contain strings.
== Noncompliant Code Example
----
class MyClass:
pass
__all__ = [
MyClass # Noncompliant
]
----
== Compliant Solution
----
class MyClass:
pass
__all__ = [
"MyClass"
]
----
== See
* https://docs.python.org/3/tutorial/modules.html#importing-from-a-package[Python documentation - Importing * From a Package]
