Incorrect division by zero error message

[pb21314]

Bug report

Bug description:

Description

Division by zero should consistently raise a ZeroDivisionError in Python.
This issue reports an inconsistency in the current behavior where the resulting error message or handling is not aligned with the expected semantics of Python's arithmetic operations.

According to Python's specification, division by zero must raise a ZeroDivisionError to clearly indicate that the operation is mathematically undefined.

Reproduction

Minimal example:

10 / 0

CPython versions tested on:

CPython main branch

Operating systems tested on:

macOS

Linked PRs

• gh-145902: Ensure division by zero raises ZeroDivisionError #145903

[aisk]

I fixed the markdown grammar of the issue. But I don't understand the issue which been reported. The minimal example 10 / 0 raised the expected error on my machine with current Python version (3.13):

>>> 10 / 0
Traceback (most recent call last):
  File "<python-input-0>", line 1, in <module>
    10 / 0
    ~~~^~~
ZeroDivisionError: division by zero

Are you missing something in the report? Please add more details about the issue.

[terryjreedy]

There is no evidence of a bug and PR is duplicate of closed #145798 and had nothing to do with ZeroDivisionError.

[skirpichev]

@terryjreedy, I would guess, that it might be a duplicate of closed #60019. I.e. OP was confused by error message (not exception type):

>>> from fractions import Fraction as F
>>> F(1, 0)
Traceback (most recent call last):
  File "<python-input-1>", line 1, in <module>
    F(1, 0)
    ~^^^^^^
  File "/home/sk/src/cpython/Lib/fractions.py", line 303, in __new__
    raise ZeroDivisionError('Fraction(%s, 0)' % numerator)
ZeroDivisionError: Fraction(1, 0)

@pb21314, please confirm, if this is true. And next time please include actual reproducers for your issues, like shown above.