Python Script Error Code
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Python Exit Code "-1"
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Python Script Return Value To Shell
a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Best way to return a value from a python script up vote 19 down python sys.exit example vote favorite 12 I wrote a script in python that takes a few files, runs a few tests and counts the number of total_bugs while writing new files with information for each (bugs+more). To take a couple files from current working directory: myscript.py -i input_name1 input_name2 When that job is done, I'd like the script to 'return total_bugs' but I'm not sure on the best way to implement this. Currently, the python exception exit code script prints stuff like: [working directory] [files being opened] [completed work for file a + num_of_bugs_for_a] [completed work for file b + num_of_bugs_for_b] ... [work complete] A bit of help (notes/tips/code examples) could be helpful here. Btw, this needs to work for windows and unix. python return return-value share|improve this question asked Aug 14 '13 at 12:11 ofer.sheffer 1,1542819 5 It's generally a bad idea to try to use the return value of an executable to return anything but an error code or 0 for success. What are you going to do with this value when it's returned? –geoffspear Aug 14 '13 at 12:13 1 Don't know about windows, but in linux it is common for programs to output the result to stdout. It seems like normally your script prints a bunch of information, but perhaps with a different flag (maybe c for count?), it just prints the total count of files, e.g. myscript.py -c -i input_name1 input_name2 –arghbleargh Aug 14 '13 at 12:18 @ Wooble, it is a script for finding bugs in report files. The value allows to estimate how well the report files are written. –ofer.sheffer Aug 14 '13 at 13:49 @arghbleargh, I decided to go with an extra bug
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Python Get Exit Code
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Python Exit Code 255
is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Terminating a Python script up vote 470 down vote favorite 82 I am http://stackoverflow.com/questions/18231415/best-way-to-return-a-value-from-a-python-script aware of the die() command in PHP which stops a script early. How can I do this in Python? python termination share|improve this question edited Apr 2 at 2:21 Lightness Races in Orbit 218k36337585 asked Sep 16 '08 at 15:35 Teifion 31.5k59130174 add a comment| 7 Answers 7 active oldest votes up vote 647 down vote accepted import sys sys.exit() details from the sys module documentation: sys.exit([arg]) Exit from Python. http://stackoverflow.com/questions/73663/terminating-a-python-script This is implemented by raising the SystemExit exception, so cleanup actions specified by finally clauses of try statements are honored, and it is possible to intercept the exit attempt at an outer level. The optional argument arg can be an integer giving the exit status (defaulting to zero), or another type of object. If it is an integer, zero is considered “successful termination” and any nonzero value is considered “abnormal termination” by shells and the like. Most systems require it to be in the range 0-127, and produce undefined results otherwise. Some systems have a convention for assigning specific meanings to specific exit codes, but these are generally underdeveloped; Unix programs generally use 2 for command line syntax errors and 1 for all other kind of errors. If another type of object is passed, None is equivalent to passing zero, and any other object is printed to stderr and results in an exit code of 1. In particular, sys.exit("some error message") is a quick way to exit a program when an error occurs. Since exit() ultimately “only” raises an exception, it will only exit the process when called from the main thread, and the exception is not intercepted. Note that this is the 'nice' way to e
Staus [Report This Article] 9 1 2 3 4 5 (1 vote, average 5.00 out of 5) Exiting in python is fairly straight-forward. You need to import the "sys" library, and then call exit from it. 1 2 3 import sys sys.exit() Calling exit with no arguments is a clean exit -- no error code is returned. If you'd like to exit with an error message, simply pass the message as a parameter and exit will automatically exit with an error and print your message. 1 2 3 import sys sys.exit("This is an example of an error message") Partner Links: Last Updated on Wednesday, 16 June 2010 02:16 Related Articles» How to Setup and Secure a Wireless Network Using a Linksys RouterFirst thing to do is setup your router. Make sure you hook up the power cable, the modem, and all wired computers to the router. Once this has been done, verify that you can see the wireless network associated with your router. A newly created network will most likely be named 'linksys'.Open a web browser on one of the computers connected to the network. Once the web browser is open, type http://192.168.1.1 into the address bar. This will take you to the routers build-in administrator portal.... Read more...» Display a spinner or loading animation and also capture exit code of child process in BashIt is possible to display an animation (commonly called a spinner) while a subprocess runs in the backgroud. In order to do so, create a script and put it on the $PATH with the following:1234567891011121314151617#!/bin/bashif [ $# -ne 1 ]; then echo "Usage: $0 PID_to_wait_for" exit 1fifunction spinner { PROC=$1 while [ -d /proc/$PROC ];do echo -n '' ; sleep 0.05 echo -n '' ; sleep 0.05 echo -n '' ; sleep 0.05 echo -n '' ; sleep 0.05 done return 0}spinner... Read more...» Matplotlib IOError: Error While Writing to Output StreamWhen using the Python Matplotlib library, Python may throw the following error:1IOError: error while writing to output streamCommonly this is caused because Python does not have access to the output stream -- in this case, usually some file that Matplotlib is attempting to write to. This is typical when the Python script is being used on a web server. For instance, the following code might not work if the directory "output" does not have write permissions on a... Read more... Latest Articles Display a spinner or loading animation and also capture exit code of child process in Bash Parsing Arguments To Bash Scripts with GetOpts Make a WINE Program like Photoshop Use Its Own Icon on Unity Launcher in Ubuntu Link Aggregation (aka