In article <496f0fac.30...@cemery.org.uk>,
Ranec <python-...@cemery.org.uk> wrote:
> The following code works just fine under Windows XP and Vista but not on
> MacOS X (currently no idea what version, though Python is 2.5.?). Any
> thoughts?
>
> def get_my_ip_address():
> ret=None
> try:
> s=socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
> s.connect(('google.com', 0))
> sn=s.getsockname()
> if sn:
> ret=sn[0]
> except socket.error, e:
> hn=socket.gethostname()
> ret=socket.gethostbyname(hn)
> return ret
>
> produces the stack:
>
> Traceback (most recent call last):
> File "./sarnie_client.py", line 181, in get_my_ip_address
> s.connect(('google.com', 0))
> File "<string>", line 1, in connect
> socket.error: (49, "Can't assign requested address")
>
> My application has been given firewall rights accept connections from
> the Internet. Is there perhaps anything else that I should configure?
Don't use port 0.
>>> import socket
>>> s=socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
>>> s.connect(('google.com', 0))
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "<string>", line 1, in connect
socket.error: [Errno 49] Can't assign requested address
>>> s.connect(('google.com', 1))
>>> sn = s.getsockname()
>>> sn
('10.20.30.40', 56621)
--
Ned Deily,
n...@acm.org
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