master (0.15.dev) is broken on Windows

[Vlad-Shcherbina]

To reproduce, run the example from the readme:

from werkzeug.wrappers import Request, Response

@Request.application
def application(request):
    return Response('Hello, World!')

if __name__ == '__main__':
    from werkzeug.serving import run_simple
    run_simple('localhost', 4000, application)

On Windows, I get the following error:

Traceback (most recent call last):
  File "zzz.py", line 11, in <module>
    run_simple('localhost', 4000, application)
  File "...\werkzeug\serving.py", line 880, in run_simple
    inner()
  File "...\werkzeug\serving.py", line 836, in inner
    fd=fd)
  File "...\werkzeug\serving.py", line 723, in make_server
    passthrough_errors, ssl_context, fd=fd)
  File "...\werkzeug\serving.py", line 624, in __init__
    server_address = get_sockaddr(host, int(port), self.address_family)
  File "...\werkzeug\serving.py", line 593, in get_sockaddr
    if family == socket.AF_UNIX:
AttributeError: module 'socket' has no attribute 'AF_UNIX'

It seems it was broken in d2140a4#diff-5561c422f09af0c38ec8260f0d17a52dR593
(merged in #1019)

---

Version info:
Python 3.7.0 (v3.7.0:1bf9cc5093, Jun 27 2018, 04:59:51) [MSC v.1914 64 bit (AMD64)] on win32
Werkzeug 0.15.dev (d2140a4 and later)

[clach04]

I hit this today, I kludged in a hack to get going, sharing here.

diff --git a/werkzeug/serving.py b/werkzeug/serving.py
index 6fb43fb7..0561b42e 100644
--- a/werkzeug/serving.py
+++ b/werkzeug/serving.py
@@ -86,6 +86,9 @@ else:
     class ForkingMixIn(object):
         pass

+if not hasattr(socket, 'AF_UNIX'):
+    socket.AF_UNIX = -99  # FIXME kludge
+
 # important: do not use relative imports here or python -m will break
 import werkzeug
 from werkzeug._internal import _log
@@ -591,7 +594,7 @@ def select_address_family(host, port):
 def get_sockaddr(host, port, family):
     """Return a fully qualified socket address that can be passed to
     :func:`socket.bind`."""
-    if family == socket.AF_UNIX:
+    if hasattr(socket, 'AF_UNIX') and family == socket.AF_UNIX:
         return host.split('://', 1)[1]
     try:
         res = socket.getaddrinfo(

the 2nd patch was my first attempt but there where a bunch of other places where socket.AF_UNIX was used so went with a quick-and-dirty to get my experiment up and running. DO NOT USE the monkey patch! ;)

Works for me with Python 2.7.13 and Python 3.6.1.