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Merge pull request #4314 from minrk/eaccess

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catch EACCES when binding notebook app

can come up for low ports on *ix, or user access control restrictions on Windows.

closes #4308
This commit is contained in:
Min RK 2013-10-02 10:23:11 -07:00
commit 691cfb63e3
1 changed files with 8 additions and 3 deletions
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11
IPython/html/notebookapp.py
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@ -112,7 +112,7 @@ def random_ports(port, n):
for i in range(min(5, n)):
yield port + i
for i in range(n-5):
yield port + random.randint(-2*n, 2*n)
yield max(1, port + random.randint(-2*n, 2*n))
def load_handlers(name):
"""Load the (URL pattern, handler) tuples for each component."""
@ -590,9 +590,14 @@ class NotebookApp(BaseIPythonApplication):
break
# restore the monekypatch
socket.AI_ADDRCONFIG = saved_AI_ADDRCONFIG
if e.errno != errno.EADDRINUSE:
if e.errno == errno.EADDRINUSE:
self.log.info('The port %i is already in use, trying another random port.' % port)
continue
elif e.errno in (errno.EACCES, getattr(errno, 'WSAEACCES', errno.EACCES)):
self.log.warn("Permission to listen on port %i denied" % port)
continue
else:
raise
self.log.info('The port %i is already in use, trying another random port.' % port)
else:
self.port = port
success = True