Python Exception Handling with in a loop

Question

An exception occurs when my program can't find the element its looking for, I want to log the event within the CSV, Display a message the error occurred and continue. I have successfully logged the event in the CSV and display the message, Then my program jumps out of the loop and stops. How can I instruct python to continue. Please check out my code.

sites = ['TCF00670','TCF00671','TCF00672','TCF00674','TCF00675','TCF00676','TCF00677']`

with open('list4.csv','wb') as f:
    writer = csv.writer(f)
    try:
        for s in sites:
            adrs = "http://turnpikeshoes.com/shop/" + str(s)
            driver = webdriver.PhantomJS()
            driver.get(adrs)
            time.sleep(5)
            LongDsc = driver.find_element_by_class_name("productLongDescription").text
            print "Working.." + str(s)
            writer.writerows([[LongDsc]])
    except:
        writer.writerows(['Error'])
        print ("Error Logged..")
        pass

    driver.quit()
print "Complete."

Put the try/except inside the while loop, instead of the other way round. — John Gordon
– John Gordon, Commented Jul 8, 2016 at 16:23

Eli Korvigo · Accepted Answer · 2020-01-07 20:14:10Z

8

Just put the try/except block inside the loop. And there is no need in that pass statement at the end of the except block.

with open('list4.csv','wb') as f:
    writer = csv.writer(f)
    for s in sites:
        try:
            adrs = "http://turnpikeshoes.com/shop/" + str(s)
            driver = webdriver.PhantomJS()
            driver.get(adrs)
            time.sleep(5)
            LongDsc = driver.find_element_by_class_name("productLongDescription").text
            print "Working.." + str(s)
            writer.writerows([[LongDsc]])
        except:
            writer.writerows(['Error'])
            print ("Error Logged..")

NOTE It's generally a bad practice to use except without a particular exception class, e.g. you should do except Exception:...

edited Jan 7, 2020 at 20:14

answered Jul 8, 2016 at 16:24

Eli Korvigo

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1 Comment

Ryan Dooley Over a year ago

Awesome!, It amazing how sensitive python is with indentation I had tried placing within the loop before and kept getting a syntax error. I will read up some more on exception handling and the use of an exception class.

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