I’m having trouble getting my Python script to execute properly in Zapier. The code seems correct to me but it just won’t run when I try to test it. I’ve checked the syntax multiple times and everything looks fine. Has anyone else experienced similar issues with Python code in Zapier? I’m not getting any helpful error messages that would point me in the right direction. The script is supposed to process some data and return a result, but it fails during execution. What are the most common reasons why Python code might not work in Zapier even when it looks syntactically correct? Any troubleshooting tips would be really helpful.
check your python version first - zapier runs 3.8 and newer syntax will break things. input_data formatting is another common issue - double-check you’re using the right keys to access fields. watch out for invisible characters or encoding problems from certain apps too, they’ll cause silent failures that are hard to debug.
I’ve dealt with this exact problem in Zapier Python scripts. Timeout issues get overlooked constantly - Zapier kills scripts that run too long, and it fails silently. Happened to me with large datasets where my code worked fine but hit the runtime limit. Check your variable scope too. Variables you define sometimes aren’t accessible where you’d expect in Zapier’s environment. Plus some Python functions act weird in their sandbox compared to running locally. Strip your script down to bare bones first, then add pieces back one at a time while testing.
I’ve faced similar issues before. A common problem is related to module imports; while your code might run flawlessly on your local environment, it may fail on Zapier if it requires libraries that aren’t supported in their Python environment. Additionally, pay close attention to the data format that Zapier sends to the script. If your code expects a different structure or variable types, it will likely result in execution failure. Adding print statements can help you debug by showing the actual data being processed at each stage. Lastly, ensure your return statement matches the expected format because even a small discrepancy there can lead to issues.