[Ironpython-users] Strange exception in os.walk

Markus Schaber m.schaber at codesys.com
Wed Mar 4 17:09:13 CET 2015


One of my coworkers struggles with strange exceptions when he calls os.walk from his python script.

The script is running in IronPython 2.7.4, hosted by CODESYS.

16:04:05 [Information] # Start building AC_Mechatronics at c:\jenkins\workspace\Build_Libraries\source\Application\ApplicationComposer\AC_Mechatronics\AC_Mechatronics
16:04:05 [Error] Unable to cast object of type 'Microsoft.Scripting.Runtime.Uninitialized' to type 'System.Exception'.
16:04:05 [Error]   File "c:\jenkins\workspace\Build_Libraries\scripts\BuildLibraries.py", line 453, in build_library
    library_state = get_library_state(sharp_client, lib_root, dest_repo, srcpath_parsed)
  File "c:\jenkins\workspace\Build_Libraries\scripts\BuildLibraries.py", line 415, in get_library_state
    project_info = load_project_info_object(lib_root)
  File "c:\jenkins\workspace\Build_Libraries\scripts\tools.py", line 96, in load_project_info_object
    for root, dirs, files in os.walk(project_root):
  File "C:\jenkins\workspace\Build_Libraries\cds\Targets\default\ScriptLib\\os.py", line 294, in walk
    for x in walk(new_path, topdown, onerror, followlinks):
  File "C:\jenkins\workspace\Build_Libraries\cds\Targets\default\ScriptLib\\os.py", line 276, in walk
    names = listdir(top)

The problem is currently reproducible on a single machine, which happens to be a build server, but unfortunately not on our developer machines.

Googling the exception code does not help, either.

We're currently trying to get more information, including .NET stack traces...

In the meantime, does anyone here have any idea for further diagnosis?

Best regards and thanks in advance,

Markus Schaber

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