Error while enumerating installed packages.

[ttSpace]

Describe the bug

Steps to Reproduce

1. Create a Python Application project.
2. Type

import debugpy
print(debugpy.__version__)
debugpy.listen(("localhost", 5678))
debugpy.wait_for_client()
print('hello')

3. Set a breakpoint on the print('hello'). (Note: Install debugpy in the current environment.)
4. Start Without Debugging.

Expected behavior

No error.

Additional context and screenshots

Error while enumerating installed packages.

Logs

1.7.0
E+00000.047: Error while enumerating installed packages.

             Traceback (most recent call last):
               File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python39_64\lib\site-packages\debugpy\common\log.py", line 361, in get_environment_description
                 report("    {0}=={1}\n", pkg.name, pkg.version)
             AttributeError: 'PathDistribution' object has no attribute 'name'

             Stack where logged:
               File "C:\Users\vting\source\repos\PythonApplication2\PythonApplication2\PythonApplication2.py", line 4, in <module>
                 debugpy.listen(("localhost", 5678))
               File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python39_64\lib\site-packages\debugpy\public_api.py", line 31, in wrapper
                 return wrapped(*args, **kwargs)
               File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python39_64\lib\site-packages\debugpy\server\api.py", line 122, in debug
                 ensure_logging()
               File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python39_64\lib\site-packages\debugpy\server\api.py", line 61, in ensure_logging
                 log.describe_environment("Initial environment:")
               File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python39_64\lib\site-packages\debugpy\common\log.py", line 369, in describe_environment
                 info("{0}", get_environment_description(header))
               File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python39_64\lib\site-packages\debugpy\common\log.py", line 363, in get_environment_description
                 swallow_exception("Error while enumerating installed packages.")
               File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python39_64\lib\site-packages\debugpy\common\log.py", line 215, in swallow_exception
                 _exception(format_string, *args, **kwargs)

[StellaHuang95]

Could you also install the importlib-metadata and try again?

[int19h]

If importlib-metadata is installed, try upgrading it. It seems that there are some incompatibilities of older versions with some packages.

[int19h]

@ttSpace Can you please try the following. Locate debugpy/common/log.py under site-packages (following the path you see in the output). Find the line in that file that says:

swallow_exception("Error while enumerating installed packages.")

replace it with:

swallow_exception("Error while enumerating installed packages.", level="info")

Does that help?

[ttSpace]

@int19h @StellaHuang95

No errors after installing importlib-metadata.

@ttSpace Can you please try the following. Locate debugpy/common/log.py under site-packages (following the path you see in the output). Find the line in that file that says:

swallow_exception("Error while enumerating installed packages.")

replace it with:

swallow_exception("Error while enumerating installed packages.", level="info")

Does that help?

No errors after replacement.

[mingp]

I am encountering the same issue. For whatever it's worth, I tried upgrading importlib-metadata, and it did not help.

My installed versions are as follows:

debugpy==1.7.0

importlib-metadata==4.11.3 # before upgrade
importlib-metadata==6.8.0 # after upgrade

Because I'm encountering this issue in a work codebase, whose dependencies are managed using Bazel, it's not easy for me to swap out a locally-vendored version to test that.

[mingp]

I downgraded the version of debugpy as follows:

debugpy==1.6.7

This at least avoids this particular issue. Putting this here in case it might help anyone else.

But, it's unclear to me yet if it's working end-to-end, because I have not yet been able to connect VS Code, and it's unclear to me yet if that's an error on my part.

[int19h]

It should not affect operation other than the message being printed.

debugpy itself doesn't have any dependencies other than the Python stdlib, and is runnable directly from the repo tree (i.e. you should be able to just clone or copy the source directory and then do python src/debugpy to run it from command line). I'm pretty sure that the above line would be sufficient to fix it but I'd love to test it before pushing out an update.

[mingp]

I was able to get the VS Code debugger working end-to-end on debugpy==1.6.7. Putting this here in case it might help anyone else.

[SushNag]

@ttSpace Can you please try the following. Locate debugpy/common/log.py under site-packages (following the path you see in the output). Find the line in that file that says:

swallow_exception("Error while enumerating installed packages.")

replace it with:

swallow_exception("Error while enumerating installed packages.", level="info")

Does that help?

This worked for me, Thanks

[fartzy]

debugpy==1.6.7

Thank you so much, yes this worked for me too

[styk-tv]

Could you also install the importlib-metadata and try again?

2 hours of wasted life. typical microsoft - above fixed error conda install importlib-metadata

[int19h]

The workaround should not be necessary on current debugpy versions. Please let me know if you're running into some issue.

[bearrito]

Is this fixed with the extension?