Redundant boolean variable check

Reports equality comparison with a boolean literal.

Example:

def func(s):
    if s.isdigit() == True:
        return int(s)

With the quick-fix applied, the code fragment will be simplified to:

def func(s):
    if s.isdigit():
        return int(s)

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.

PySimplifyBooleanCheck

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: PySimplifyBooleanCheckInspection

Inspection options

Here you can find the description of settings available for the Redundant boolean variable check inspection, and the reference of their default values.

Ignore comparison to zero

Option ID:

ignoreComparisonToZero

Default value:

Selected

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 PySimplifyBooleanCheck

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 2025.2, DataSpell 2025.2, IntelliJ IDEA 2025.2, PyCharm 2025.2, Qodana for JVM 2025.2,

Last modified: 18 September 2025