On Sep 28, 12:11 pm, "Chris Rebert" <[EMAIL PROTECTED]> wrote: > On Sun, Sep 28, 2008 at 11:03 AM, robean <[EMAIL PROTECTED]> wrote: > > Hi everyone, > > > I have a question about using urllib2. > > > I like urllib2 better than urllib at least in part because it has more > > elaborate support for handling errors: there is built in support for > > URLError (for faulty urls) and HTTPError (for http errors that might > > originate from, say, passing an invalid stock-ticker in the program > > below). However I can get neither to work. I'm attaching below the > > (very short) code: can anyone point out what I'm doing wrong? > > > Now, if I replace the URLError and HTTPError with IOError (the class > > from which both URLError and HTTPError inherit), the program works > > fine. Why is it that I can call the generic IOError class, but none of > > the Error classes derived from that? These are clearly defined in the > > urllib2 manual. Very confused... > > > Here's the code: > > > import urllib2 > > > # read stock information from yahoo finance for Traget (TGT) > > goodTicker = 'TGT' # program works with this > > badTicker = 'TGTttttttt' # python doesn't understand either HTTPError > > or URLError with this > > > url = "http://ichart.finance.yahoo.com/table.csv?s="; + badTicker > > > try: > > handle = urllib2.urlopen(url) > > > # this does not work > > except HTTPError, e: > > print "There was an http error" > > print e > > > # this also does not work > > except URLError, e: > > print "There is a problem with the URL" > > print e > > exit(1) > > > #this works > > except IOError, e: > > print "You have an IOError" > > print e > > > text = handle.readlines()[:20] > > for line in text: > > print line > > > -- > >http://mail.python.org/mailman/listinfo/python-list > > My Python begs to differ: > > #tmp.py > import urllib2 > > badTicker = 'TGTttttttt' > url = "http://ichart.finance.yahoo.com/table.csv?s="; + badTicker > > try: > handle = urllib2.urlopen(url) > > except urllib2.HTTPError, e: > print "There was an http error" > print e > > except urllib2.URLError, e: > print "There is a problem with the URL" > print e > > except urllib2.IOError, e: > print "You have an IOError" > print e > > #in the shell > $ python -V > Python 2.5.1 > $ python Desktop/tmp.py > There was an http error > HTTP Error 404: Not Found > > Are you using an outdated version of Python perhaps? > > Regards, > Chris > > -- > Follow the path of the Iguana...http://rebertia.com
Then I expect that it is most likely my version of python that is causing the problem. I'm using 2.5.2. -- http://mail.python.org/mailman/listinfo/python-list
