Source locations too broad for list comprehension iterable expression

[iritkatriel]

Bug report

Reported here: #120330 (comment)

class Foo:
    def __iter__(self):
        assert False

a = [x for x in Foo()]

output (Python 3.12.5):

Traceback (most recent call last):
  File "/home/frank/projects/executing/codi.py", line 5, in <module>
    a = [x for x in Foo()]
        ^^^^^^^^^^^^^^^^^^
  File "/home/frank/projects/executing/codi.py", line 3, in __iter__
    assert False
           ^^^^^
AssertionError

Linked PRs

• gh-123142: Fix too wide source locations in tracebacks of exceptions from broken iterables in comprehensions #123173
• [3.13] gh-123142: Fix too wide source locations in tracebacks of exceptions from broken iterables in comprehensions (GH-123173). #123209
• [3.12] gh-123142: Fix too wide source locations in tracebacks of exceptions from broken iterables in comprehensions (GH-123173). #123210
• gh-123142: fix too wide source location of GET_ITER/GET_AITER #123420
• [3.13] gh-123142: fix too wide source location of GET_ITER/GET_AITER (GH-123420). #123435
• [3.12] gh-123142: fix too wide source location of GET_ITER/GET_AITER (GH-123420). #123436