#27766: runserver crashes because of auto-reloader (Py3 + PowerShell)
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     Reporter:  oTree-org  |                    Owner:  nobody
         Type:  Bug        |                   Status:  closed
    Component:  Utilities  |                  Version:  1.10
     Severity:  Normal     |               Resolution:  needsinfo
     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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Description changed by oTree-org:

Old description:

> @urbanit: I think this may be related:
> https://youtrack.jetbrains.com/issue/PY-17069#comment=27-1804561&tab=Comments

New description:

 Repro steps:

 - Install Python 3.x (doesn't happen on 2.x)
 - Open Windows PowerShell (only happens with PowerShell, not CMD or bash)
 - `pip install django`
 - `django-admin startproject foobar`
 - `cd foobar`
 - `python manage.py runserver`

 This causes a Windows crash with a window that says: "Python has stopped
 working": http://imgur.com/dOt6eKE

 However, `python manage.py runserver --noreload` works fine, so it seems
 related to the auto-reloader.

 Here is the info from the Windows Event Viewer:

 {{{
 Faulting application name: python.exe, version: 3.5.1150.1013
 Faulting module name: ucrtbase.dll, version: 10.0.14393.0
 Exception code: 0xc0000005
 Faulting module path: C:\WINDOWS\System32\ucrtbase.dll

 }}}

 I have seen it happen with at least 5 people using Py3 & PowerShell, with
 Windows 8 or 10, and various PC models. (Though most people seem
 unaffected.)

 Occurs with Django 1.8/1.10 and Python 3.5/3.6, maybe others also.

--

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Ticket URL: <https://code.djangoproject.com/ticket/27766#comment:7>
Django <https://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.

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