Hi Folks. I am trying to build pex for the following

pex_binary(
    name="pex_binary",
    entry_point="zookeeper_jmx.py",
    shebang='/usr/bin/env python3',
    platforms=[
        'linux_x86_64-cp-38-cp38',
        'linux-aarch64-cp-38-cp38',
    ],
)

I have third party dependency

JPype1==0.6.3

I have created the following wheels

JPype1-0.6.3-cp38-cp38-linux_aarch64.whl
JPype1-0.6.3-cp38-cp38-linux_x86_64.whl

and provided the following pants.toml config

[python-repos]
# No one needs to change these values, as long as they can use the same shared location.
find_links = ["file://%(buildroot)s/wheelhouse"]
path_mappings = ["WHEELS_DIR|%(buildroot)s/wheelhouse"]

I still see messages like

0:32:54.89 [WARN] Pants cannot infer owners for the following imports in the target collectors/lib/zookeeper_jmx/libs/jmx_helper/jmx_helper.py:lib:

  * jpype (line: 4)
  * jpype.javax (line: 5)

This works for other libraries though when pantsbuild is able to use the wheel for both the patforms. The only difference is the other library wheels are in the following format which has

py3-none-any

format.

statsd-1.6.7-py3-none-any.whl

Thanks

That message usually shows up because Pants cannot figure out which dependency provides the

jpype

import. To fix that, you’ll need to add a

module_mapping

to wherever your requirements are defined: https://www.pantsbuild.org/2.22/reference/targets/python_requirements#module_mapping Your mapping would need to contain something like

"JPype1": ["jpype"]

Thanks. It worked. Appreciate your help.