Python Error Print Line
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here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies python traceback line number of this site About Us Learn more about Stack Overflow the company python exception class Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges python exception message Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: python exception stack trace Sign up Python exception handling - line number up vote 19 down vote favorite 12 I'm using python to evaluate some measured data. Because of many possible results it is difficult to handle or possible combinations. Sometimes an error happens during the evaluation. It is usually an index error because I get out of range from measured data. It is very difficult
Python Custom Exception
to find out on which place in code the problem happened. It would help a lot if I knew on which line the error was raised. If I use following code: try: result = evaluateData(data) except Exception, err: print ("Error: %s.\n" % str(err)) Unfortunately this only tells me that there is and index error. I would like to know more details about the exception (line in code, variable etc.) to find out what happened. Is it possible? Thank you. python exception indexing share|improve this question asked Jan 25 '13 at 9:47 JeCh 101116 See stackoverflow.com/questions/3702675/…! –Charles Beattie Jan 25 '13 at 9:57 docs.python.org/2/library/traceback.html#traceback-examples –osa Sep 9 '14 at 23:44 @JeCh The answers look good. Please accept one. To accept it click the empty checkmark next to the answer. –Michael Potter Aug 9 '15 at 23:53 add a comment| 2 Answers 2 active oldest votes up vote 30 down vote Solution, printing filename, linenumber, line itself and exception descrition: import linecache import sys def PrintException(): exc_type, exc_obj, tb = sys.exc_info() f = tb.tb_frame lineno = tb.tb_lineno filename = f.f_code.co_fi
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Python Print Exception
hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask python catch multiple exceptions Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. python get exception type Join them; it only takes a minute: Sign up Locating the line number where an exception occurs in python code up vote 9 down vote favorite 3 I have a code similar to this: try: if x: statement1 statement2 http://stackoverflow.com/questions/14519177/python-exception-handling-line-number statement3 elif y: statement4 statement5 statement6 else: raise except: statement7 Here, I am sure that the exception occurs in If x: block, but I would like to know in which statement of If x: block the exception occurs. Is there a way to get the line number where the exception occurs? Regards, python exception share|improve this question edited Jun 1 '12 at 0:46 animuson♦ 33.6k2192124 asked Aug 5 '11 at 19:40 alwbtc 4,9132465115 2 You don't mention http://stackoverflow.com/questions/6961750/locating-the-line-number-where-an-exception-occurs-in-python-code why you want this. For debugging a problem? So that statement7 can do something different depending on where the exception was raised? Can you tell us more? –Ned Batchelder Aug 5 '11 at 19:47 In my code the exception should not occur in statement 1 or statement 2. if it does, then either of statement1 or 2 is faulty. it is acceptable to have it in statement3. That's why I would like to know in which line there is exception. –alwbtc Aug 5 '11 at 19:50 But what will you do with the information? Do you need it once to fix the program, or do you need it at runtime? –Ned Batchelder Aug 5 '11 at 20:24 I need it once to fix the faulty lines. Now I have found the faulty line, thanks all! –alwbtc Aug 5 '11 at 21:08 add a comment| 9 Answers 9 active oldest votes up vote 19 down vote accepted what about this: try: if x: print 'before statement 1' statement1 print 'before statement 2' #ecc. ecc. statement2 statement3 elif y: statement4 statement5 statement6 else: raise except: statement7 this is the straightforward workaround but I suggest to use a debugger or even better, use the sys module :D try: if x: print 'before statement 1' statement1 print 'before statement 2' #ecc. ecc. statement2 statement3 elif y: statement4 statement5 statement6 else: rai
you have probably seen some. There are (at least) two distinguishable kinds of errors: syntax errors and exceptions. 8.1. Syntax Errors¶ Syntax errors, also known as parsing errors, are perhaps the most common kind of https://docs.python.org/3/tutorial/errors.html complaint you get while you are still learning Python: >>> while True print('Hello world') https://bytes.com/topic/python/answers/802927-reporting-line-number-exception File "
your question and get tips & solutions from a community of 418,626 IT Pros & Developers. It's quick & easy. Reporting the line number of an exception P: n/a sophie_newbie I'm sure this is exceedingly simple but I can't find it anywhere. When I catch an exception I would like to report the line number of the exception as well as the error info. try: someError() except Exception, e: "print_error_and_line_number" How do I find the line number? Thanks for any help! Jun 27 '08 #1 Post Reply Share this Question 1 Reply P: n/a Peter Otten sophie_newbie wrote: I'm sure this is exceedingly simple but I can't find it anywhere. When I catch an exception I would like to report the line number of the exception as well as the error info. try: someError() except Exception, e: "print_error_and_line_number" How do I find the line number? If you want just the line number: tb = sys.exc_info()[2] print tb.tb_lineno You may also have a look at the traceback module, e. g.: traceback.print_exc() Peter Jun 27 '08 #2 This discussion thread is closed Start new discussion Replies have been disabled for this discussion. Similar topics text/xml reporting service error Calling the Windows Error Reporting message for unhandled exceptio How To Create Custom Aspx Error Reporting Page Help! Debugger reporting System.IO.FIleLoadException. Sql Reporting Serviced - > ASP.NET ACCESS DENIED! Reporting line number of parse exception? Elegant error reporting, possible? Browse more Python Questions on Bytes Question stats viewed: 3916 replies: 1 date asked: Jun 27 '08 Follow this discussion BYTES.COM © 2016 Formerly "TheScripts.com" from 2005-2008 About Bytes | Advertise on Bytes | Contact Us Sitemap | Python Answers Sitemap | Python Insights Sitemap Follow us to get the Latest Bytes Updates