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x = False. except Exception: x = True. This way what happens is that the while loop will keep on looping the try except section again and again until it works, in which x is set to false and the loop stops. Also, you can implement a break in the while loop instead of basing it on a variable, for example: while True: try:
Basically, continue does not skip to the else statement, it continues on with the code (passed the try statement). And, break breaks the for loop, thus producing no more output, so I removed that statement. for x in range(1,10): try: if x != 1: x/0. except Exception: print "Kaput:%s" %(x) else:
Normally it runs correctly, but sometimes it fails due to network conditions. Currently I have it set so that on failure, it will continue in the except clause (continue on to the next number for i). Is it possible for me to reassign the same number to i and run through the failed iteration of the loop again?
Put your try/except structure more in-wards. Otherwise when you get an error, it will break all the loops ...
Yes, there is a difference. continue forces the loop to start at the next iteration while pass means "there is no code to execute here" and will continue through the remainder of the loop body. Run these and see the difference: for element in some_list: if not element: pass.
9,656 8 62 69. This is the correct answer (if we're answering the question in the title and not the one in the description). continue is for breaking out of the current loop iteration and begin with the next iteration. If you want to just escape out of the try / except block, pass is the correct keyword if you're not doing anything inside the ...
try: do_something() except Exception: sys.exc_clear() This clears the last thrown exception. Python 3. In Python 3, the variable that holds the exception instance gets deleted on exiting the except block. Even if the variable held a value previously, after entering and exiting the except block it becomes undefined again.
Name and description only. Of course, if you don't want the whole traceback but only some specific information (e.g., exception name and description), you can still use the logging module like so:
I have a simple for loop in Python that is exiting on exceptions even though the exception block contains a continue.
42. From the python docs: When a return, break or continue statement is executed in the try suite of a try...finally statement, the finally clause is also executed ‘on the way out.’. A continue statement is illegal in the finally clause. (The reason is a problem with the current implementation — this restriction may be lifted in the future).