Passing arguments to python script in Azure Devops

Question

I am trying to pass a system variable to the python script from azure devops. This is what I currently have in Yaml file:

- script: pytest test/test_pipeline.py 
          --$(global_variable) 
          --junitxml=$(Build.StagingDirectory)/test_pipeline-results.xml
          displayName: 'Testing Pipeline'
          condition: always()

The variable I need in my script is $(global_variable). The variable contains a value of $(Build.SourcesDirectory). It is the global variable. I am getting an error message as "unrecognised arguments" when I run the job.

Any help to tackle this will be helpful.

Thanks!

EDIT:

Complete log:

`##[section]Starting: Testing Pipeline
==============================================================================
Task         : Command line
Description  : Run a command line script using Bash on Linux and macOS and cmd.exe on Windows
Version      : 2.151.2
Author       : Microsoft Corporation
Help         : https://learn.microsoft.com/azure/devops/pipelines/tasks/utility/command-line
==============================================================================
Generating script.
Script contents:
pytest test/test_pipeline.py --my_param="/home/vsts/work/1/s" --junitxml=/home/vsts/work/1/a/test_pipeline-results.xml
========================== Starting Command Output ===========================
[command]/bin/bash --noprofile --norc /home/vsts/work/_temp/64fb4a65-90de-42d5-bfb3-58cc8aa174e3.sh
ERROR: usage: pytest [options] [file_or_dir] [file_or_dir] [...]
pytest: error: unrecognized arguments: --my_param=/home/vsts/work/1/s
  inifile: None
  rootdir: /home/vsts/work/1/s

##[error]Bash exited with code '4'.
##[section]Finishing: Testing Pipeline`

You can try with Python Script task instead. In Arguments you can pass variable in it. — Mengdi Liang
– Mengdi Liang, Commented Aug 6, 2019 at 11:21
I did try that as well.Something like this: - task: PublishTestResults@2 condition: always() displayName: "Testing Pipleline For Test Cases" inputs: arguments: $(global_variable) testResultsFiles: $(Build.StagingDirectory)/test_pipeline-results.xml testRunTitle: Test Pipeline — Natasha
– Natasha, Commented Aug 6, 2019 at 11:24
@ShaykiAbramczyk at the very beginning. I also echoed the value just to be sure. It does stores what I want. — Natasha
– Natasha, Commented Aug 6, 2019 at 11:31

mpg · Accepted Answer · 2020-08-07 07:49:50Z

8

I tried to write a simple sample for you refer.

In your .py file, please use add_argument to read in the command line parameter. In this issue, this command line parameter comes from your task specified.

A.py file:

import argparse 

def parse_argument():
       parse = argparse.ArgumentParser(description="ForTest!")
       parse.add_argument("-test_data")
       parse.add_argument("-build_dir")

And then, in PythonScript@0 task:

scriptPath: ‘A.py’
argument: -test_data $(myVariable1) -build_dir $(myVariable2)

myVariable1 and myVariable2 are all my customized variable. You can all use environment variable.

Since in python script, add_argument is used to read in the parameter which from command line. So it can receive the value from Argument specified.

In addition, for the issue which in your question, I think you’d better delete the content from your script: --my_param="/home/vsts/work/1/s" and try again. Because --my_param could not the valid argument for pytest.

Hope can help you.

edited Aug 7, 2020 at 7:49

mpg

615 bronze badges

answered Aug 6, 2019 at 18:02

Mengdi Liang

19.3k2 gold badges35 silver badges43 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

AstraSerg Over a year ago

Thanks! Don't you know about arguments with spaces in them?

Collectives™ on Stack Overflow

Passing arguments to python script in Azure Devops

1 Answer 1

1 Comment

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Linked

Related