python try except print error
The last except clause may omit the exception name(s), to serve as a wildcard. Use this with extreme caution, since it is easy to mask a real programming error in this way! It can also be used to print an error message and then re-raise the exception (all, Use this with extreme caution, since it is easy to mask a real programming error in this way! It can also be used to print an error message and then re-raise the exception (allowing a caller to handle the exception as well):. import sys try: f = open(,Use this with extreme caution, since it is easy to mask a real programming error in this way! It can also be used to print an error message and then re-raise the exception (allowing a caller to handle the exception as well):. import sys try: f = open(', A better approach is to make use of the standard Python Logging module. import sys, traceback, logging logging.basicConfig(level=logging.ERROR) try: x = 0 y = 1 z = y / x z = z + 1 print "z=%d" % (z) except: logging.exception("Values , Handling Exceptions. The simplest way to handle exceptions is with a "try-except" block: Toggle line numbers 1 (x,y) = (5,0) 2 try: 3 z = x/y 4 except ZeroDivisionError: 5 print "divide by zero". If you wanted to examine the exception, In case you want to pass error strings, here is an example from Errors and Exceptions (Python 2.6) >>> try: ... raise Exception('spam', 'eggs') ... except Exception as inst: ... print type(inst) # the exception instance ... print, Some other answer have already pointed out the traceback module. Please notice that with print_exc , in some corner cases, you will not obtain what you would expect. In Python 2.x: import traceback try: raise TypeError("Oups!") except Exception, try: with open(filepath,'rb') as f: con.storbinary('STOR '+ filepath, f) logger.info('File successfully uploaded to '+ FTPADDR) except Exception, ... in Python 3.x and modern versions of Python 2.x use except Exception as e instea, Using traceback.extract_tb : import sys import traceback try: # Your code except: tb = sys.exc_info()[-1] print(traceback.extract_tb(tb, limit=1)[-1][1]). I added limit=1 for efficiency, to avoid loading the (possibly) huge traceback. You can't avoid, and using print_exc() function will also print stack trace which is essential info for any error message. Like this: from traceback import print_exc class dazhuangcao(Exception): pass try: raise dazhuangcao("hi") except Exception, e: print '
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 python try except print error 相關參考資料
8. Errors and Exceptions — Python 2.7.15rc1 documentation
The last except clause may omit the exception name(s), to serve as a wildcard. Use this with extreme caution, since it is easy to mask a real programming error in this way! It can also be used to prin... https://docs.python.org 8. Errors and Exceptions — Python 3.3.7 documentation
Use this with extreme caution, since it is easy to mask a real programming error in this way! It can also be used to print an error message and then re-raise the exception (allowing a caller to handl... https://docs.python.org 8. Errors and Exceptions — Python 3.6.5 documentation
Use this with extreme caution, since it is easy to mask a real programming error in this way! It can also be used to print an error message and then re-raise the exception (allowing a caller to handle... https://docs.python.org exception handling - Python tryexcept: Showing the cause of the ...
A better approach is to make use of the standard Python Logging module. import sys, traceback, logging logging.basicConfig(level=logging.ERROR) try: x = 0 y = 1 z = y / x z = z + 1 print "z... https://stackoverflow.com HandlingExceptions - Python Wiki
Handling Exceptions. The simplest way to handle exceptions is with a "try-except" block: Toggle line numbers 1 (x,y) = (5,0) 2 try: 3 z = x/y 4 except ZeroDivisionError: 5 print "divid... https://wiki.python.org How to print an error in Python? - Stack Overflow
In case you want to pass error strings, here is an example from Errors and Exceptions (Python 2.6) >>> try: ... raise Exception('spam', 'eggs') ... except Exception as inst: ... https://stackoverflow.com python - How to print the full traceback without halting the ...
Some other answer have already pointed out the traceback module. Please notice that with print_exc , in some corner cases, you will not obtain what you would expect. In Python 2.x: import traceback t... https://stackoverflow.com python exception message capturing - Stack Overflow
try: with open(filepath,'rb') as f: con.storbinary('STOR '+ filepath, f) logger.info('File successfully uploaded to '+ FTPADDR) except Exception, ... in Python 3.x and modern ... https://stackoverflow.com Python, try except, print error line # - Stack Overflow
Using traceback.extract_tb : import sys import traceback try: # Your code except: tb = sys.exc_info()[-1] print(traceback.extract_tb(tb, limit=1)[-1][1]). I added limit=1 for efficiency, to avoid loa... https://stackoverflow.com python: How do I know what type of exception occurred? - Stack ...
and using print_exc() function will also print stack trace which is essential info for any error message. Like this: from traceback import print_exc class dazhuangcao(Exception): pass try: raise dazh... https://stackoverflow.com |