#31716: django-admin runserver mostly does not work on Windows
-----------------------------------+--------------------------------------
Reporter: Christian Ullrich | Owner: nobody
Type: Uncategorized | Status: new
Component: Uncategorized | Version: 3.0
Severity: Normal | Resolution:
Keywords: | Triage Stage: Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Changes (by Christian Ullrich):
* status: closed => new
* resolution: worksforme =>
Comment:
Here you go.
{{{
C:\Daten>py -m venv test
C:\Daten>test\Scripts\activate
(test) C:\Daten>python -c "import sys; print(sys.version)"
3.8.3 (tags/v3.8.3:6f8c832, May 13 2020, 22:37:02) [MSC v.1924 64 bit
(AMD64)]
(test) C:\Daten>python -m pip install -U pip setuptools Django
Looking in indexes: https://nexus/repository/PyPI-mirror/simple
Collecting pip
Downloading https://nexus/repository/PyPI-
mirror/packages/pip/20.1.1.post1/pip-20.1.1.post1-py2.py3-none-any.whl
(1.6MB)
|████████████████████████████████| 1.6MB 656kB/s
Collecting setuptools
Downloading https://nexus/repository/PyPI-
mirror/packages/setuptools/47.3.1/setuptools-47.3.1-py3-none-any.whl
(582kB)
|████████████████████████████████| 583kB 726kB/s
Collecting Django
Downloading https://nexus/repository/PyPI-
mirror/packages/django/3.0.7/Django-3.0.7-py3-none-any.whl (7.5MB)
|████████████████████████████████| 7.5MB 726kB/s
Collecting asgiref~=3.2 (from Django)
Downloading https://nexus/repository/PyPI-
mirror/packages/asgiref/3.2.9/asgiref-3.2.9-py3-none-any.whl
Collecting pytz (from Django)
Downloading https://nexus/repository/PyPI-
mirror/packages/pytz/2020.1/pytz-2020.1-py2.py3-none-any.whl (510kB)
|████████████████████████████████| 512kB 726kB/s
Collecting sqlparse>=0.2.2 (from Django)
Downloading https://nexus/repository/PyPI-
mirror/packages/sqlparse/0.3.1/sqlparse-0.3.1-py2.py3-none-any.whl (40kB)
|████████████████████████████████| 40kB 871kB/s
Installing collected packages: pip, setuptools, asgiref, pytz, sqlparse,
Django
Found existing installation: pip 19.2.3
Uninstalling pip-19.2.3:
Successfully uninstalled pip-19.2.3
Found existing installation: setuptools 41.2.0
Uninstalling setuptools-41.2.0:
Successfully uninstalled setuptools-41.2.0
Successfully installed Django-3.0.7 asgiref-3.2.9 pip-20.1.1.post1
pytz-2020.1 setuptools-47.3.1 sqlparse-0.3.1
(test) C:\Daten\dtest>pip list
Package Version
---------- ------------
asgiref 3.2.9
Django 3.0.7
pip 20.1.1.post1
pytz 2020.1
setuptools 47.3.1
sqlparse 0.3.1
}}}
pip 20.1.1.post1 is 20.1.1 minus the information disclosure. For our
purposes it's the same.
{{{
(test) C:\Daten>openssl.exe sha256 test\Scripts\django-admin.exe
SHA256(test\Scripts\django-admin.exe)=
24a24fefaaa27e069474985353cceacc9cb4128a35f50e99af487768d4255c90
}}}
No idea if they are identical between different installations.
{{{
(test) C:\Daten>django-admin startproject dtest
(test) C:\Daten>set PYTHONPATH=C:\Daten\dtest
(test) C:\Daten>set DJANGO_SETTINGS_MODULE=dtest.settings
(test) C:\Daten>django-admin
Type 'django-admin help <subcommand>' for help on a specific subcommand.
Available subcommands:
[django]
check
compilemessages
createcachetable
dbshell
diffsettings
dumpdata
flush
inspectdb
loaddata
makemessages
makemigrations
migrate
runserver
sendtestemail
shell
showmigrations
sqlflush
sqlmigrate
sqlsequencereset
squashmigrations
startapp
startproject
test
testserver
Note that only Django core commands are listed as settings are not
properly configured (error: No module named 'dtest').
(test) C:\Daten>cd dtest
(test) C:\Daten\dtest>django-admin runserver
C:\Program Files\Python38\python.exe: can't open file
'C:\Daten\test\Scripts\django-admin': [Errno 2] No such file or directory
}}}
Note the missing extension.
{{{
(test) C:\Daten\dtest>django-admin runserver --noreload
Performing system checks...
System check identified no issues (0 silenced).
You have 17 unapplied migration(s). Your project may not work properly
until you apply the migrations for app(s): admin, auth, contenttypes,
sessions.
Run 'python manage.py migrate' to apply them.
June 17, 2020 - 08:58:46
Django version 3.0.7, using settings 'dtest.settings'
Starting development server at http://127.0.0.1:8000/
Quit the server with CTRL-BREAK.
^C
}}}
Works with --noreload.
Now let's see what it is actually trying to execute.
{{{
(test) C:\Daten\dtest>vi ..\test\Lib\site-
packages\django\utils\autoreload.py
}}}
Before line 230 (the subprocess.run call in restart_with_reloader()),
insert "print(args)".
{{{
(test) C:\Daten\dtest>django-admin runserver
['c:\\daten\\test\\scripts\\python.exe', 'C:\\Daten\\test\\Scripts
\\django-admin', 'runserver']
C:\Program Files\Python38\python.exe: can't open file
'C:\Daten\test\Scripts\django-admin': [Errno 2] No such file or directory
}}}
This cannot possibly work.
{{{
(test) C:\Daten\dtest>dir ..\test\scripts
Volume in drive C is Windows
Volume Serial Number is 8EC9-7F66
Directory of C:\Daten\test\scripts
2020-06-17 08:54 <DIR> .
2020-06-17 08:54 <DIR> ..
2020-06-17 08:53 2.273 activate
2020-06-17 08:53 950 activate.bat
2020-06-17 08:53 18.454 Activate.ps1
2020-06-17 08:53 368 deactivate.bat
2020-06-17 08:54 106.388 django-admin.exe
2020-06-17 08:54 142 django-admin.py
2020-06-17 08:54 106.355 easy_install-3.8.exe
2020-06-17 08:54 106.355 easy_install.exe
2020-06-17 08:54 106.346 pip.exe
2020-06-17 08:54 106.346 pip3.8.exe
2020-06-17 08:54 106.346 pip3.exe
2020-06-17 08:53 532.040 python.exe
2020-06-17 08:53 531.016 pythonw.exe
2020-06-17 08:54 106.341 sqlformat.exe
2020-06-17 08:54 <DIR> __pycache__
14 File(s) 1.829.720 bytes
3 Dir(s) [...] bytes free
(test) C:\Daten\dtest>vi -b ..\test\scripts\django-admin.exe
}}}
Edit the Python block at the end to not match and remove .exe anymore. I
replaced "\.exe" with "\.rxe" in the regex.
{{{
(test) C:\Daten\dtest>django-admin runserver
['c:\\daten\\test\\scripts\\python.exe', 'C:\\Daten\\test\\Scripts
\\django-admin.exe', 'runserver']
Watching for file changes with StatReloader
Performing system checks...
System check identified no issues (0 silenced).
You have 17 unapplied migration(s). Your project may not work properly
until you apply the migrations for app(s): admin, auth, contenttypes,
sessions.
Run 'python manage.py migrate' to apply them.
June 17, 2020 - 09:07:47
Django version 3.0.7, using settings 'dtest.settings'
Starting development server at http://127.0.0.1:8000/
Quit the server with CTRL-BREAK.
^C
}}}
With the extension left alone, this works now, too.
The .exe. generally isn't needed.
Not if it is the command name. Here it is an argument on python's command
line, though, and python does not guess about missing extensions.
--
Ticket URL: <https://code.djangoproject.com/ticket/31716#comment:2>
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