Description

assignee = None
closed_at = None
created_at = <Date 2019-12-04.15:17:03.998>
labels = ['3.7', 'type-bug', 'library']
title = '[PDB] NameError in list comprehension in PDB'
updated_at = <Date 2019-12-05.08:04:29.609>
user = 'https://bugs.python.org/castix'

activity = <Date 2019-12-05.08:04:29.609>
actor = 'xtreak'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2019-12-04.15:17:03.998>
creator = 'castix'
dependencies = []
files = []
hgrepos = []
issue_num = 38970
keywords = []
message_count = 2.0
messages = ['357807', '357840']
nosy_count = 3.0
nosy_names = ['xdegaye', 'xtreak', 'castix']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue38970'
versions = ['Python 3.7']

Activity

1. castix commented on Dec 4, 2019

   

   castixmannequin

   on Dec 4, 2019

   MannequinAuthor

   More actions

   Related to https://bugs.python.org/issue27316

   This code works from the repl:
   Python 3.7.4 (default, Oct  4 2019, 06:57:26) 
   [GCC 9.2.0] on linux
   Type "help", "copyright", "credits" or "license" for more information.
   >>> import pdb; pdb.set_trace()
   --Return--
   > <stdin>(1)<module>()->None
   (Pdb) z = True
   (Pdb) [x for x in [1,2] if z]
   [1, 2]
   (Pdb) 

   However in my (turbogears2) wsgi application it raises:
   (Pdb) z = True
   (Pdb) [x for x in [1,2] if z]
   *** NameError: name 'z' is not defined
   (Pdb) z
   True
   (Pdb)

   I don't know how to report the issue in a reproducible way.
   Thanks
2. castix

   added

   3.7 (EOL)end of lifeend of life

   stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

   type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

   on Dec 4, 2019
3. tirkarthi commented on Dec 5, 2019

   

   tirkarthi

   on Dec 5, 2019

   Member

   More actions

   I think this is same as https://bugs.python.org/issue26072#msg277578 and is reproducible with below sample script without depending on turbogears. The attached patch in the issue fixes this. Try using interact command from pdb as a workaround.

   import pdb
   
   def foo():
     pdb.set_trace()
   
   foo()
4. ezio-melotti

   transferred this issue fromon Apr 10, 2022
5. brandtbucher

   added a commit that references this issue on May 6, 2024

   GH-83151: Add closure support to pdb (GH-111094)

   e5353d4
6. gaogaotiantian commented on May 6, 2024

   

   gaogaotiantian

   on May 6, 2024

   Member

   More actions

   This is fixed by PEP 709.
7. gaogaotiantian

   closed this as completedon May 6, 2024
8. SonicField

   added a commit that references this issue on May 8, 2024

   pythonGH-83151: Add closure support to pdb (pythonGH-111094)

   85a5202

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