[New-bugs-announce] [issue18288] Idle 2.7: Run Module does not set __file__

[Terry J. Reedy]

New submission from Terry J. Reedy:

This is a 2.7 only bug.

F:\Python\mypy\tem2.py
----
print (__file__)

__file__ should be set to relative or absolute path.

>From command line:

F:\Python\mypy> c:/programs/python27/python.exe tem2.py
tem2.py

F:\Python\mypy> c:/programs/python27/python.exe -m tem2
F:\Python\mypy\tem2.py

3.3 gives same results.

>From Idle editor window with Run Module (F5):

3.3: >>>
F:\Python\mypy\tem2.py
# same as python -m above, and same as when file is imported.

2.7: >>>
Traceback (most recent call last):
  File "F:\Python\mypy\tem2.py", line 1, in <module>
    print (__file__)
NameError: name '__file__' is not defined

This is the bug to be fixed, if reasonably possible.

Both 2.7 and 3.3 set __file__ on regular import (or rather, Idle does not disable this).

>>> import tem2
F:\Python\mypy\tem2.py

I think the first step should be to try this on non-Windows systems.

----------
components: IDLE
messages: 191721
nosy: Todd.Rovito, roger.serwy, terry.reedy
priority: normal
severity: normal
stage: test needed
status: open
title: Idle 2.7: Run Module does not set __file__
type: behavior
versions: Python 2.7

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue18288>
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