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I am ready to run this code but before I want to fix the exception handling:
for l in bios: OpenThisLink = url + l try: response = urllib2.urlopen(OpenThisLink) except urllib2.HTTPError: pass bio = response.read() item = re.search('(JD)(.*?)(\d+)', bio) .... As suggested here, I added the try...except but now if a page doesn't open I get this error:
bio = response.read() NameError: name 'response' is not defined So the program continues to execute. Instead I want it to go back to the for loop and try the next url. I tried break instead of pass but that ends the program. Any suggestions?
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As you are saying that you are using try catch within a for each scope and you wants to continue your loop even any exception will occur. So if you are still using the try catch within the loop scope it will always run that even exception will occur. it is upto you how you deal with exception in your way.
Perhaps after the first for-loop, add the try/except . Then if an error is raised, it will continue with the next file. This is a perfect example of why you should use a with statement here to open files. When you open the file using open() , but an error is catched, the file will remain open forever.
Do a while True inside your for loop, put your try code inside, and break from that while loop only when your code succeeds.
Use continue instead of break.
The statement pass is a no-op (meaning that it doesn't do anything). The program just continues to the next statement, which is why you get an error.
break exits the loops and continues running from the next statement immediately after the loop. In this case, there are no more statements, which is why your program terminates.
continue restarts the loop but with the next item. This is exactly what you want.
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Try is actually way more powerful than that. You can use the else block here too:
try: stuff except Exception: print "oh no a exception" else: print "oh yay no exception" finally: print "leaving the try block" If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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