Hello,
I am trying to retrieve data from several webpages. My problem is the
following: after a random number of requests, the page I'm trying to open is
unavailable (and I get an IOError). Note that the page may become available if
I try again after some time. Since I have thousands pages to explore, I'd like
to be able to continue the program in spite of this error.
I've thought of trying to raise an exception such as:
try:
usock = urllib.urlopen('http:// <etc>')
except:
< something >
else:
usock = urllib.urlopen('http:// <etc>')
However, this doesn't work because the page can become unavailable between
the time when I run the 'try' and the 'else'. [for instance, assume that my
internet connection stops for a couple seconds every random amount of time].
Would anyone know how to solve this problem?
[Another way to look at it is as follows: I'd like to be able to check
whether the page is available AND copy it if it is AT THE SAME TIME]
Thanks a lot for your answer,
N.
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