Issue 35570: 2to3 creates code using deprecated imp module (original) (raw)

Issue35570

Created on 2018-12-23 12:58 by hanno, last changed 2022-04-11 14:59 by admin. This issue is now closed.

Messages (3)
msg332390 - (view)	Author: Hanno Boeck (hanno) *	Date: 2018-12-23 12:58
2to3 (in python 3.6.6) will rewrite the reload function to use the imp module. However according to [1] "Deprecated since version 3.4: The imp package is pending deprecation in favor of importlib." Also running the code with warnings enabled will show a deprecation warning. Example, take this minimal script: #!/usr/bin/python import sys reload(sys) Running to 2to3 ends up with: #!/usr/bin/python import sys import imp imp.reload(sys) $ PYTHONWARNINGS=d python3 foo.py test.py:3: DeprecationWarning: the imp module is deprecated in favour of importlib; see the module's documentation for alternative uses import imp [1] https://docs.python.org/3/library/imp.html
msg332395 - (view)	Author: Karthikeyan Singaravelan (xtreak) *	Date: 2018-12-23 20:49
Seems this came up when the original version of fixer was added as noted in https://bugs.python.org/issue11797#msg206884 . Looking further this seems to be similar to https://bugs.python.org/issue21446 where it was fixed in 3.7 and master to use importlib.reload . Since 3.6 is having it's last bug fix release I am not sure of the backport. Adding benjamin.peterson to the issue .
msg332692 - (view)	Author: Terry J. Reedy (terry.reedy) *	Date: 2018-12-29 02:54
It was decided in #21446 to only backport the change, labelled an enhancement, to 3.7 and it is now too late to challenge that decision as 3.6 only gets security fixes.