From where is your main function being called? That is what really matters. In general, no, wirting sys.exit() and return are not the same thing.
But yes, putting anything in a function after a return statement is completely useless and that code will never be executed. Answer from MegaIng on discuss.python.org
Reddit
reddit.com › r/learnpython › error code 1
r/learnpython on Reddit: error code 1
February 13, 2023 -
So im pretty new to python and im trying to make a chat bot so I try installing chatter bot and I get error code 1 Running setup.py install for preshed did not run successfully. what does this mean and how do I fix it? I tried looking it up but people use lingo I dont know yet. Can anyone tell me how to fix this? that would be great thanks!
Top answer 1 of 9
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From where is your main function being called? That is what really matters. In general, no, wirting sys.exit() and return are not the same thing.
But yes, putting anything in a function after a return statement is completely useless and that code will never be executed.
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@MegaIng at the end of this python script main() is called if __ name __ is main, which is indirectly a shell script that calls it. And I want to return data in that shell script.
My doubt is sys.exit at the end of main or end of everything is same as return right?
Difference between exit(0) and exit(1) in Python - Stack Overflow
The standard convention for all C programs, including Python, is for exit(0) to indicate success, and exit(1) or any other non-zero value (in the range 1..255) to indicate failure. Any value outside the range 0..255 is treated modulo 256 (the exit status is stored in an 8-bit value). Sometimes, that will be treated as signed (so you might see -128, -127, etc) but more usually it is treated as unsigned. This status is available to the code ... More on stackoverflow.com
[Bug]: Access Denied - Couldn't launch python - exit code: 1
Is there an existing issue for this? I have searched the existing issues and checked the recent builds/commits What happened? When I run the webui-user.bat for the first time it works perfectly and I'm able to access the UI via localhost... More on github.com
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March 20, 2023Code 0 1 in python
I am trying to add the return code and getting error message. if os.stat(file).st.size == 0: return 0 else: return 1 More on discuss.python.org
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0
May 17, 2023Why is my Python Script Returning an Exit Code 1 Error Despite Reverting to Previous Versions? - Bugs - Pipedream
This topic was automatically generated from Slack. You can find the original thread here. I am having an issue with aPython script today. I have reverted to old versions that worked and still seeing an issue. Error: Script returned exit code 1 at handleError (/var/task/common.js:38:40) at ... More on pipedream.com
0
July 23, 2025Videos
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Exit codes in Python - YouTube
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Troubleshooting Process Finished with Exit Code 1 in PyCharm
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python system exit code - YouTube
Top answer 1 of 3
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0 and 1 are exit codes, and they are not necessarily python specific, in fact they are very common.
exit code (0) means an exit without errors or issues.
exit code (1) means there was some issue / problem which caused the program to exit.
The effect of each of these codes can vary between operating systems, but with Python should be fairly consistent.
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0 and 1 are exit codes.
exit code (0) means an exit without an errors or any issues, can be a compile time error or any dependency issue.
exit code (1) means there was some issue which caused the program to exit. For example if your program is running on port :8080 and that port is currently in used or not closed, then you code ends up with exit code 1
Oreate AI
oreateai.com › blog › understanding-exit-code-1-what-it-means-for-your-python-programs › 5694cf6ba63410eba2a2c858848c7081
Understanding Exit Code 1: What It Means for Your Python Programs - Oreate AI Blog
December 19, 2025 - To illustrate, consider a simple scenario: you're trying to read data from a file in your Python script but accidentally provide the wrong path. When the interpreter can't find the file, it raises an IOError and exits with code 1 instead of finishing up neatly at zero.
Adam Johnson
adamj.eu › tech › 2021 › 10 › 10 › the-many-ways-to-exit-in-python
The Many Ways to Exit in Python - Adam Johnson
October 10, 2021 - Both essentially call raise ... an exit code, like: ... This looks super convenient! We don’t need to import anything, and the names are very short. Unfortunately, the site module is optional. We can be skip loading it by running Python with the -S flag. In which case our call to quit() or exit() can still exit, but with a NameError exception: $ python -S -c 'exit(1)' Traceback ...
JetBrains
intellij-support.jetbrains.com › hc › en-us › community › posts › 8251409720850-Process-finished-with-exit-code-1-Python-console
Process finished with exit code 1 - Python console – IDEs Support (IntelliJ Platform) | JetBrains
October 24, 2022 - Did you mean "!="? if found.get(name) is not 1: Traceback (most recent call last): File "C:\Program Files\JetBrains\PyCharm Community Edition 2018.3.7\helpers\pydev\pydevconsole.py", line 33, in <module> from _pydev_bundle.pydev_console_utils import BaseInterpreterInterface File "C:\Program Files\JetBrains\PyCharm Community Edition 2018.3.7\helpers\pydev\_pydev_bundle\pydev_console_utils.py", line 11, in <module> from _pydevd_bundle import pydevd_thrift File "C:\Program Files\JetBrains\PyCharm Community Edition 2018.3.7\helpers\pydev\_pydevd_bundle\pydevd_thrift.py", line 17, in <module> from
Top answer 1 of 5
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0 and 1 are the exit codes.
exit(0) means a clean exit without any errors / problems
exit(1) means there was some issue / error / problem and that is why the program is exiting.
This is not Python specific and is pretty common. A non-zero exit code is treated as an abnormal exit, and at times, the error code indicates what the problem was. A zero error code means a successful exit.
This is useful for other programs, shell, caller etc. to know what happened with your program and proceed accordingly.
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This determines the exit status of the program when it finishes running (generally, 0 for success and 1 for error).
It is not unique to Python, and the exact effect depends on your operating system and how the program is called (though 99% of the time, if you're just running Python scripts, it doesn't matter).
GitHub
github.com › AUTOMATIC1111 › stable-diffusion-webui › issues › 8766
[Bug]: Access Denied - Couldn't launch python - exit code: 1 · Issue #8766 · AUTOMATIC1111/stable-diffusion-webui
March 20, 2023 - It just displays Access Denied: Error Code 1. The only way to get it working again is to clone the repo from scratch and then run it for the first time, so that it reinstall everything and gets the localhost up again.
Author faynercosta
Top answer 1 of 9
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Are you trying to get return code like in C main function?
If so you should replace return 0 with sys.exit(0)
See more about here
2 of 9
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What error are you getting? The first thing I spot is that you are capitalizing If when it should be if, so that is probably one problem, but posting your actual error will allow others to help better.
Python Morsels
pythonmorsels.com › exiting-a-python-program
Exiting a Python program - Python Morsels
February 21, 2022 - When sys.exit is called with a string, Python prints that string and exits with the code 1.
Super Fast Python
superfastpython.com › home › tutorials › process exit codes in python
Process Exit Codes in Python - Super Fast Python
September 11, 2022 - You can set an exit code for a process via sys.exit() and retrieve the exit code via the exitcode attribute on the multiprocessing.Process class. In this tutorial you will discover how to get and set exit codes for processes in Python. Let’s get started. Need Process Exit Codes A process ...
freeCodeCamp
freecodecamp.org › news › python-exit-how-to-use-an-exit-function-in-python-to-stop-a-program
Python Exit – How to Use an Exit Function in Python to Stop a Program
June 5, 2023 - In this example, the program will print "Before exit", but when the exit() function is called with a status of 1, the program will terminate immediately without executing the remaining code.
Pipedream
pipedream.com › bugs
Why is my Python Script Returning an Exit Code 1 Error Despite Reverting to Previous Versions? - Bugs - Pipedream
July 23, 2025 - This topic was automatically generated from Slack. You can find the original thread here. I am having an issue with aPython script today. I have reverted to old versions that worked and still seeing an issue. Error: Script returned exit code 1 at handleError (/var/task/common.js:38:40) at ...
Python
docs.python.org › 3 › library › sys.html
sys — System-specific parameters and functions
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.
Python.org
discuss.python.org › python help
Error : subprocess-exited-with-error. Code 1 - Python Help - Discussions on Python.org
March 11, 2024 - I am trying to install these: librosa==0.9.1, faster-whisper==0.9.0 pydub==0.25.1, wavmark==0.0.2, numpy==1.22.0, eng_to_ipa==0.0.2, inflect==7.0.0, unidecode==1.3.7, whisper-timestamped==1.14.2, openai, python-dotenv, pypinyin==0.50.0, cn2an==0.5.22, jieba==0.42.1, gradio==3.48.0, langid==1.1.6, openai-whisper, pyaudio, SpeechRecognition but as soon as my system donwloads numpy, it crashes the installation for all the others and itself as well.
Quora
quora.com › What-is-the-exit-status-code-of-a-Python-script
What is the exit status code of a Python script? - Quora
If your Python script runs successfully, it will always exit with a status code of 0. If there was an unhandled exception, it will exit with a status code of 1.
Pipedream
pipedream.com › help
Suddenly getting "Script returned exit code 1" error for Python step when workflow has been working perfectly for months now - Help - Pipedream
May 29, 2023 - Hi :slight_smile: I have a Python step in between two Google Sheets steps in a workflow that has been working perfectly since December 2022. At the end of April 2023, the workflow stopped working. Since I only learned e…
Codecademy
codecademy.com › article › python-exit-commands-quit-exit-sys-exit-os-exit-and-keyboard-shortcuts
Python Exit Commands: quit(), exit(), sys.exit(), os._exit() and Keyboard Shortcuts | Codecademy
This function prints numbers from 1 to 20 but exits gracefully when it reaches 10, returning a status code of 0 (indicating successful completion). While sys.exit() ensures proper handling, os._exit() is a lower-level function that forces immediate termination without executing cleanups. Let’s examine it next. When a Python program needs to terminate instantly, bypassing all cleanup routines and exception handling, os._exit() is the go-to command.
Stack Exchange
unix.stackexchange.com › questions › 665768 › systemd-python-script-main-process-exited-code-exited-status-1-failure
ubuntu - Systemd - Python script - Main process exited, code=exited, status=1/FAILURE - Unix & Linux Stack Exchange
August 22, 2021 - An exit code of 1 in python probably means someplace in your code you have an intentional exit. Check your code.
Cisco
orbital.amp.cisco.com › help › Content › Topics › Script-Exit-Codes.htm
Script Exit Codes
Script exit codes inform Orbital whether a Python script completed successfully.