do not use hasattr to check if a value is callable

This page is not yet available in Spanish. We are working on its translation.
If you have any questions or feedback about our current translation project, feel free to reach out to us!

Metadata

ID: python-best-practices/use-callable-not-hasattr

Language: Python

Severity: Notice

Category: Best Practices

Description

Do not make any check using hasattr to check if a function is callable since the object may have redefine __getattr__. Instead, use callable().

Learn More

Non-Compliant Code Examples

hasattr(x, '__call__')  # use callable 

Compliant Code Examples

callable(x)
https://static.datadoghq.com/static/images/logos/github_avatar.svg https://static.datadoghq.com/static/images/logos/vscode_avatar.svg jetbrains

Seamless integrations. Try Datadog Code Analysis