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Title: Exception in pstats print_callers()
Type: crash Stage:
Components: Library (Lib) Versions: Python 2.6, Python 2.5
Status: closed Resolution: accepted
Dependencies: Superseder:
Assigned To: georg.brandl Nosy List: georg.brandl, matthew.fremont, stromnov, therve
Priority: normal Keywords: easy

Created on 2007-10-12 07:14 by stromnov, last changed 2022-04-11 14:56 by admin. This issue is now closed.

File name Uploaded Description Edit
profile.log stromnov, 2007-10-12 07:14
1269.diff therve, 2007-11-25 14:55
Messages (5)
msg56358 - (view) Author: Andrew Stromnov (stromnov) Date: 2007-10-12 07:14
Python 2.5.1 (r251:54863, Apr 18 2007, 08:51:08) [MSC v.1310 32 bit
(Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import pstats
>>> ps = pstats.Stats("profile.log")
>>> ps.add("profile.log")
<pstats.Stats instance at 0x01358BC0>
>>> ps.print_callers()
   Random listing order was used

{method 'append' of 'list' objects}                                    
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Python25\lib\", line 388, in print_callers
    self.print_call_line(width, func, callers, "<-")
  File "C:\Python25\lib\", line 417, in print_call_line
    nc, cc, tt, ct = value
ValueError: too many values to unpack
msg57746 - (view) Author: Matthew Fremont (matthew.fremont) Date: 2007-11-22 00:18
I hit the same issue, and I think the problem is that at line 515 in add_callers() the two stats instead of adding them
member-wise. As a result, each time add() is called, the number of stats
associated with each func grows by 4. Then, when print_call_line() is
called by print_callers() or print_callees(), there are "too many values
to unpack" at line 417.

This change to modifies add_callers() to add the stats
together instead of concatenating the tuples.

<             new_callers[func] = caller + new_callers[func]
>             new_callers[func] = map(lambda x,y: x+y, caller +
msg57789 - (view) Author: Thomas Herve (therve) * Date: 2007-11-23 16:29
1315 is a duplicate of this, and I end up with a very similar solution.
msg57829 - (view) Author: Thomas Herve (therve) * Date: 2007-11-25 14:55
Here's my patch against trunk, with one test. Please review!
msg61383 - (view) Author: Georg Brandl (georg.brandl) * (Python committer) Date: 2008-01-21 10:25
Committed as r60149. Thanks for the patch!
Date User Action Args
2022-04-11 14:56:27adminsetgithub: 45610
2008-01-21 10:25:13georg.brandlsetstatus: open -> closed
resolution: accepted
messages: + msg61383
2008-01-12 01:43:20akuchlingsetkeywords: + easy
2007-11-30 06:47:48georg.brandlsetassignee: georg.brandl
nosy: + georg.brandl
2007-11-25 14:55:15thervesetfiles: + 1269.diff
messages: + msg57829
versions: + Python 2.6
2007-11-24 13:37:40georg.brandllinkissue1315 superseder
2007-11-23 16:29:02thervesetnosy: + therve
messages: + msg57789
2007-11-22 00:18:15matthew.fremontsetnosy: + matthew.fremont
messages: + msg57746
2007-10-12 07:14:22stromnovcreate