Installation from sources fails

[montag451]

I tried to install the package using the following command:

pip install --no-binary :all: asn1tools

It failed with the following backtrace:

Collecting asn1tools
  Using cached asn1tools-0.43.0.tar.gz
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-build-do00dtb9/asn1tools/setup.py", line 4, in <module>
        import asn1tools
      File "/tmp/pip-build-do00dtb9/asn1tools/asn1tools/__init__.py", line 11, in <module>
        from .compiler import compile_dict
      File "/tmp/pip-build-do00dtb9/asn1tools/asn1tools/compiler.py", line 6, in <module>
        from .parser import parse_files
      File "/tmp/pip-build-do00dtb9/asn1tools/asn1tools/parser.py", line 8, in <module>
        from pyparsing import Literal
    ImportError: No module named 'pyparsing'
    
    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-do00dtb9/asn1tools/

The problem seems to come from the fact that you import asn1tools in the setup script.

[eerimoq]

What is the appropriate fix?

[montag451]

I think the purpose of using asn1tools.__version__ to specify the package's version in the setup function was to update only one place when bumping the version number but as the dependencies of the package may not be installed when the script is run it can't work (I think pip run the setup script to discover the package dependencies). The only solution for me is to specify the version as a string in the setup function. I can make a pull request if you want :)

[eerimoq]

A few more alternatives: https://packaging.python.org/guides/single-sourcing-package-version/

I prefer 1. as I can keep __version__ in __init__.py as the single source of the version in the package. Also, that's what pip does =) It's a bit verbose, but I can live with that.

Feel free to create a PR, hopefully based on 1.

[eerimoq]

Any progress?

[montag451]

Maybe this week-end, I will have time to work on this :)

[eerimoq]

Closing since there is no progress and no one will likely implement this.

[eerimoq]

This issue was fixed in version 0.79.0 of asn1tools.