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bpo-33065: Fix problem debugging user classes with __repr__ method (GH-24183)

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If __repr__ uses instance attributes, as normal, and one steps
through the __init__ method, debugger may try to get repr before
the instance attributes exist.  reprlib.repr handles the error.
(cherry picked from commit 81f87bbf9f)

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
This commit is contained in:
Miss Islington (bot) 2021-01-09 23:30:43 -08:00 • committed by GitHub
parent 9ab4dd4522
commit 799f8489d4
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4 changed files with 20 additions and 3 deletions
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6
Lib/idlelib/debugger_r.py
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@ -19,7 +19,7 @@ arguments and return values that cannot be transported through the RPC
barrier, in particular frame and traceback objects.
"""
import reprlib
import types
from idlelib import debugger
@ -170,7 +170,7 @@ class IdbAdapter:
def dict_item(self, did, key):
dict = dicttable[did]
value = dict[key]
value = repr(value) ### can't pickle module 'builtins'
value = reprlib.repr(value) ### can't pickle module 'builtins'
return value
#----------end class IdbAdapter----------
@ -390,4 +390,4 @@ def restart_subprocess_debugger(rpcclt):
if __name__ == "__main__":
from unittest import main
main('idlelib.idle_test.test_debugger', verbosity=2, exit=False)
main('idlelib.idle_test.test_debugger_r', verbosity=2, exit=False)