overlapping-except / W0714

Message emitted:

Overlapping exceptions (%s)

Description:

Used when exceptions in handler overlap or are identical

Problematic code:

def divide_x_by_y(x: float, y: float):
    try:
        print(x / y)
    except (ArithmeticError, FloatingPointError) as e:  # [overlapping-except]
        print(f"There was an issue: {e}")

Correct code:

less_generic_first.py:

def divide_x_by_y(x: float, y: float):
    try:
        print(x / y)
    except FloatingPointError as e:
        print(f"There was a FloatingPointError: {e}")
    except ArithmeticError as e:
        # FloatingPointError  were already caught at this point
        print(f"There was an OverflowError or a ZeroDivisionError: {e}")

only_generic.py:

def divide_x_by_y(x: float, y: float):
    try:
        print(x / y)
    except ArithmeticError as e:
        print(
            f"There was an OverflowError, a ZeroDivisionError or a FloatingPointError: {e}"
        )

Configuration file:

[MAIN]
load-plugins=pylint.extensions.overlapping_exceptions,

Related links:

• Exception hierarchy

Note

This message is emitted by the optional 'overlap-except' checker, which requires the pylint.extensions.overlapping_exceptions plugin to be loaded.

Created by the overlap-except checker.