Using function calls that don't return anything as values

Reports cases when the result of a function that does not return anything is used.

This inspection is similar to pylint inspection E1111.

Example:

def just_print():
    print("Hello!")


action = just_print()
b = f"{just_print()}"

As a quick-fix, the IDE offers to remove the assignment.

Locating this inspection

By ID

Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.

PyNoneFunctionAssignment

Via Settings dialog

Path to the inspection settings via IntelliJ Platform IDE Settings dialog, when you need to adjust inspection settings directly from your IDE.

Settings or Preferences | Editor | Inspections | Python

Inspection ID: PyNoneFunctionAssignmentInspection

Suppressing Inspection

You can suppress this inspection by placing the following comment marker before the code fragment where you no longer want messages from this inspection to appear:

//noinspection PyNoneFunctionAssignment

More detailed instructions as well as other ways and options that you have can be found in the product documentation:

Inspection Details
By default bundled with:	CLion 2026.2, IntelliJ IDEA 2026.2, PyCharm 2026.2, Qodana for JVM 2026.2,

Last modified: 30 June 2026