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$ python -V Python 2.5.1 $ python Desktop/tmp.py There was an http error HTTP Error 404: Not Found Are you using an outdated version of Python perhaps?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 -- http://mail.python.org/mailman/listinfo/python-list
