#32202: django-admin runserver and get_child_arguments
-------------------------------------+-------------------------------------
Reporter: andrey- | Owner: nobody
zotov |
Type: Bug | Status: new
Component: Core | Version: 3.1
(Management commands) |
Severity: Normal | Keywords:
Triage Stage: | Has patch: 0
Unreviewed |
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
-------------------------------------+-------------------------------------
"django-admin runserver" fails with the following error:
{{{
Traceback (most recent call last):
File
"c:\users\someone\appdata\local\programs\python\python37\lib\runpy.py",
line 193, in _run_module_as_main
"__main__", mod_spec)
File
"c:\users\someone\appdata\local\programs\python\python37\lib\runpy.py",
line 85, in _run_code
exec(code, run_globals)
File "C:\Users\someone\AppData\Local\Programs\Python\Python37\Scripts
\django-admin.exe\__main__.py", line 7, in <module>
File "c:\users\someone\appdata\local\programs\python\python37\lib\site-
packages\django\core\management\__init__.py", line 401, in
execute_from_command_line
utility.execute()
File "c:\users\someone\appdata\local\programs\python\python37\lib\site-
packages\django\core\management\__init__.py", line 395, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "c:\users\someone\appdata\local\programs\python\python37\lib\site-
packages\django\core\management\base.py", line 330, in run_from_argv
self.execute(*args, **cmd_options)
File "c:\users\someone\appdata\local\programs\python\python37\lib\site-
packages\django\core\management\commands\runserver.py", line 61, in
execute
super().execute(*args, **options)
File "c:\users\someone\appdata\local\programs\python\python37\lib\site-
packages\django\core\management\base.py", line 371, in execute
output = self.handle(*args, **options)
File "c:\users\someone\appdata\local\programs\python\python37\lib\site-
packages\django\core\management\commands\runserver.py", line 96, in handle
self.run(**options)
File "c:\users\someone\appdata\local\programs\python\python37\lib\site-
packages\django\core\management\commands\runserver.py", line 103, in run
autoreload.run_with_reloader(self.inner_run, **options)
File "c:\users\someone\appdata\local\programs\python\python37\lib\site-
packages\django\utils\autoreload.py", line 616, in run_with_reloader
exit_code = restart_with_reloader()
File "c:\users\someone\appdata\local\programs\python\python37\lib\site-
packages\django\utils\autoreload.py", line 244, in restart_with_reloader
p = subprocess.run(args, env=new_environ, close_fds=False)
File
"c:\users\someone\appdata\local\programs\python\python37\lib\subprocess.py",
line 488, in run
with Popen(*popenargs, **kwargs) as process:
File
"c:\users\someone\appdata\local\programs\python\python37\lib\subprocess.py",
line 800, in __init__
restore_signals, start_new_session)
File
"c:\users\someone\appdata\local\programs\python\python37\lib\subprocess.py",
line 1148, in _execute_child
args = list2cmdline(args)
File
"c:\users\someone\appdata\local\programs\python\python37\lib\subprocess.py",
line 555, in list2cmdline
needquote = (" " in arg) or ("\t" in arg) or not arg
TypeError: argument of type 'WindowsPath' is not iterable
}}}
Environment:
Windows 10
Python: 3.7.6
Django: 3.1.3
Steps to reproduce:
{{{
django-admin startproject mysite
set PYTHONPATH=<thelocaldir>
django-admin runserver --settings=mysite.settings
}}}
Apparently django.utils.autoreload.get_child_arguments returns
WindowsPath("C:\Users\someone\AppData\Local\Programs\Python\Python37\Scripts
\django-admin.exe") as the first argument,
and subprocess.Popen expects a string and is not able to use Path.
The following monkey-patch fixes the error:
{{{
def get_child_arguments_override():
args = autoreload._get_child_arguments()
for i, arg in enumerate(args):
if isinstance(arg, Path):
args[i] = str(arg)
return args
autoreload._get_child_arguments = autoreload.get_child_arguments
autoreload.get_child_arguments = get_child_arguments_override
}}}
--
Ticket URL: <https://code.djangoproject.com/ticket/32202>
Django <https://code.djangoproject.com/>
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