Common methods for handling program exceptions using try in python

If you want to handle the following exceptions when writing a python program, try is generally used to handle the exception. Suppose there is a program: try: Statement 1 Statement 2. statement N contains t .........: print ....... however, you do not know what exceptions will occur when running "Statement 1 to statement N", but you still need to handle the exceptions and want to print out the exceptions, does not stop the program running, so in "Running t ...... "How should I write this sentence? At least three methods are summarized: Method 1: Catch all exceptions try: a = B = c except t Exception, e: print Exception, ":", e try: a = B = c Release t Exception, e: print Exception, ":", e www.2cto.com Method 2: Use the traceback module to view the Exception import traceback try: a = B = c Release t: traceback. print_exc () import traceback try: a = B = c Release T: traceback. print_exc () method 3: Use the sys module to trace the last exception import sys try: a = B = c except: info = sys. exc_info () print info [0], ":", info [1] import sys try: a = B = c country T: info = sys. exc_info () print info [0], ":", info [1]. However, if you want to save these exceptions to a log file, take a look at the following method: Put traceback. print_exc (): Save the information printed on the screen to a text file. try: a = B = c character T: f = open ("c: log.txt", 'A ') traceback. print_exc (file = f) f. flush () f. close ()