Errors on Python 3.9.7

[robertsdotpm]

Hello, I'm trying to use this package on Python 3.9.7 (very recent I know) and the sample code throws errors. Here are the results:

>>> xxxxx = varname()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/ubuntu/.local/lib/python3.9/site-packages/varname/core.py", line 103, in varname
    refnode = get_node(frame + 1, ignore, raise_exc=raise_exc)
  File "/home/ubuntu/.local/lib/python3.9/site-packages/varname/utils.py", line 127, in get_node
    return get_node_by_frame(frameobj, raise_exc)
  File "/home/ubuntu/.local/lib/python3.9/site-packages/varname/utils.py", line 132, in get_node_by_frame
    exect = Source.executing(frame)
  File "/home/ubuntu/.local/lib/python3.9/site-packages/executing/executing.py", line 309, in executing
    lineno = frame.f_lineno
AttributeError: 'NoneType' object has no attribute 'f_lineno'

Then I also tried the following and got a different error:

>>> def function():
...     return varname()
... 
>>> xxx = function()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<stdin>", line 2, in function
  File "/home/ubuntu/.local/lib/python3.9/site-packages/varname/core.py", line 106, in varname
    raise VarnameRetrievingError("Unable to retrieve the ast node.")
varname.utils.VarnameRetrievingError: Unable to retrieve the ast node.

I think the idea behind the module though is a very good idea. Don't let it discourage you that there seems to be problems on the most recent versions of Python. This is a cool and useful hack. If you can get it working let me know! I have an elegant use-case in my state machine code.

[pwwang]

Could you reveal the environment running your code? Such as raw python REPL, ipython, jupyter notebook or as a python script?

And I would not agree that

there seems to be problems on the most recent versions of Python.

based on the CI results: https://github.com/pwwang/python-varname/actions/runs/2001581362

[robertsdotpm]

@pwwang thanks for such a fast reply!

I tried the code out just in a Python interactive shell with python3 on Ubuntu 21.10 x86_64.

[robertsdotpm]

@pwwang Just tried it without the shell. It works fine. Thanks! Will use this in my code after-all.

Edit: Maybe it would make sense to add a prominent warning that it doesn't work in the shell or something on the project and pypy page? Cheers man.