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[fix][fn] Forward source message properties in Python runtime - #26191

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lhotari merged 4 commits into
apache:masterfrom
sbourkeostk:python-forward-properties
Jul 25, 2026
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[fix][fn] Forward source message properties in Python runtime#26191
lhotari merged 4 commits into
apache:masterfrom
sbourkeostk:python-forward-properties

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@sbourkeostk

@sbourkeostk sbourkeostk commented Jul 14, 2026 •
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Fixes #17773

Motivation

The Python functions runtime currently ignores the forward-source-message-property option and does not forward message properties. This PR fixes that.

Modifications

python_instance.py has been modified to check for the flag and copy the message properties if requested. Tests have been added.

Verifying this change

  • Make sure that the change passes the CI checks.

This change added tests and can be verified by running the Python functions tests.

Does this pull request potentially affect one of the following parts:

If the box was checked, please highlight the changes

  • Dependencies (add or upgrade a dependency)
  • The public API
  • The schema
  • The default values of configurations
  • The threading model
  • The binary protocol
  • The REST endpoints
  • The admin CLI options
  • The metrics
  • Anything that affects deployment

@lhotari lhotari added this to the 5.0.0-M2 milestone Jul 25, 2026
@lhotari
lhotari merged commit f07e0ed into apache:master Jul 25, 2026
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lhotari pushed a commit that referenced this pull request Jul 25, 2026
@sbourkeostk Stephen Bourke @lhotari
[fix][fn] Forward source message properties in Python runtime (#26191)
58a059f 
Co-authored-by: Stephen Bourke <sbourke@beyond.com>
(cherry picked from commit f07e0ed)
lhotari pushed a commit that referenced this pull request Jul 25, 2026
@sbourkeostk Stephen Bourke @lhotari
[fix][fn] Forward source message properties in Python runtime (#26191)
5320d30 
Co-authored-by: Stephen Bourke <sbourke@beyond.com>
(cherry picked from commit f07e0ed)
sandeep-ctds pushed a commit to datastax/pulsar that referenced this pull request Jul 31, 2026
@sbourkeostk Stephen Bourke @sandeep-ctds
[fix][fn] Forward source message properties in Python runtime (apache…
46a98b6 
…#26191)

Co-authored-by: Stephen Bourke <sbourke@beyond.com>
(cherry picked from commit f07e0ed)
sandeep-ctds pushed a commit to datastax/pulsar that referenced this pull request Jul 31, 2026
@sbourkeostk Stephen Bourke @sandeep-ctds
[fix][fn] Forward source message properties in Python runtime (apache…
f96f5ed 
…#26191)

Co-authored-by: Stephen Bourke <sbourke@beyond.com>
(cherry picked from commit f07e0ed)
sandeep-ctds pushed a commit to datastax/pulsar that referenced this pull request Jul 31, 2026
@sbourkeostk Stephen Bourke @sandeep-ctds
[fix][fn] Forward source message properties in Python runtime (apache…
1ba9b7b 
…#26191)

Co-authored-by: Stephen Bourke <sbourke@beyond.com>
(cherry picked from commit f07e0ed)
nodece pushed a commit to ascentstream/pulsar that referenced this pull request Aug 28, 2026
@sbourkeostk Stephen Bourke @nodece
[fix][fn] Forward source message properties in Python runtime (apache…
694a056 
…#26191)

Co-authored-by: Stephen Bourke <sbourke@beyond.com>
(cherry picked from commit f07e0ed)
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@lhotari lhotari lhotari approved these changes

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cherry-picked/branch-4.0 cherry-picked/branch-4.2 release/4.0.13 release/4.2.4

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[Bug] python function ignores --forward-source-message-property true

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@sbourkeostk @lhotari