New submission from Léon Planken <[email protected]>:
This is a re-opening of issue 41914 (and my first issue, so apologies for any
mistakes). Building Python 3.7, I ran into the same issue reported there (only
line numbers differ):
======================================================================
FAIL: test_errors_in_command (__main__.PdbTestCase)
----------------------------------------------------------------------
Traceback (most recent call last):
File "Lib/test/test_pdb.py", line 1535, in test_errors_in_command
'(Pdb) ',
AssertionError: Lists differ: ['(Pd[283 chars]efined", 'LEAVING RECURSIVE
DEBUGGER', '(Pdb) ', '\x1b[?1034h'] != ['(Pd[283 chars]efined", 'LEAVING
RECURSIVE DEBUGGER', '(Pdb) ']
First list contains 1 additional elements.
First extra element 9:
'\x1b[?1034h'
['(Pdb) *** SyntaxError: unexpected EOF while parsing',
'(Pdb) ENTERING RECURSIVE DEBUGGER',
'*** SyntaxError: unexpected EOF while parsing',
'LEAVING RECURSIVE DEBUGGER',
'(Pdb) ENTERING RECURSIVE DEBUGGER',
'> <string>(1)<module>()',
"((Pdb)) *** NameError: name 'doesnotexist' is not defined",
'LEAVING RECURSIVE DEBUGGER',
- '(Pdb) ',
? ^
+ '(Pdb) ']
? ^
- '\x1b[?1034h']
----------------------------------------------------------------------
Ran 39 tests in 1.024s
FAILED (failures=1)
I have also managed to determine the cause. As can be seen, the output from
this pdb invocation contains an extraneous ANSI control sequence ("interpret
"meta" key, set eighth bit"). This happens when running the test inside the GNU
`screen` environment. Run the test outside `screen`, and the problem goes away.
----------
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Python tracker <[email protected]>
<https://bugs.python.org/issue45242>
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