[BUG] not able to find only python files

[rocc-jenkins]

Is there an existing issue for this?

• I have searched the existing issues

Does this issue exist in the latest version?

• I'm using the latest release

Describe the bug?

• name: Get specific changed files
  id: changed-files
  uses: tj-actions/changed-files@v11
  with:
  files: |
  .py

i want only python files to be captured and using above format which doesnt work and giving below error.

fatal: bad object

To Reproduce

• name: Get specific changed files
  id: changed-files
  uses: tj-actions/changed-files@v11
  with:
  files: |
  .py

i want only python files to be captured and using above format which doesnt work and giving below error.

fatal: bad object

What OS are you seeing the problem on?

ubuntu-18.04

Expected behavior?

only python files should come in the output

Relevant log output

No response

Anything else?

No response

Code of Conduct

• I agree to follow this project's Code of Conduct

[github-actions]

Thanks for reporting this issue.

[jackton1]

From the example in the README

You'll need to use regex

      - name: Get specific changed files
        uses: tj-actions/changed-files@v11
        id: changed-files
        with:
          files: |
             \.py$

[github-actions]

Thanks for reporting this issue.