Lack of error explanation in makemessages, intermediate file is delete not chance to fix anything

[Cezary.Wagner]

makemessages has ugly bahaviour:

1. error message is not clear not shows root cause
2. error is not handled
3. files need to solve problem is deleted by makemessages routines even command is failed there is not intermediate files.
4. impossible to solve such problem without patching django and tracking problem with debuggers

django-admin.py makemessages -l en_US --settings=settings -v 2 --pythonpath=. --traceback

processing locale en_US
Traceback (most recent call last):

File "c:\root\src\django\django\bin\django-admin.py", line 5, in <module>

management.execute_from_command_line()

File "c:\root\src\django\django\core\management\init.py", line 399, in exe

cute_from_command_line

utility.execute()

File "c:\root\src\django\django\core\management\init.py", line 392, in exe

cute

self.fetch_command(subcommand).run_from_argv(self.argv)

File "c:\root\src\django\django\core\management\base.py", line 242, in run_fro

m_argv

self.execute(*args, options.dict)

File "c:\root\src\django\django\core\management\base.py", line 285, in execute

output = self.handle(*args, options)

File "c:\root\src\django\django\core\management\base.py", line 415, in handle

return self.handle_noargs(options)

File "c:\root\src\django\django\core\management\commands\makemessages.py", lin

e 279, in handle_noargs

self.write_po_file(potfile, locale)

File "c:\root\src\django\django\core\management\commands\makemessages.py", lin

e 368, in write_po_file

"errors happened while running msgmerge\n%s" % errors)

django.core.management.base.CommandError

[Tim Graham]

Duplicate of issues described in #22616 and #22617 as far as I can tell?