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Support relative rule import in interactive environment

See original GitHub issue

I’m using lark in a jupyter notebook, and when I try importing from a different .lark file like so:

%import .opcode.NAME

I got this error:

~/.pyenv/versions/marlin/lib/python3.6/site-packages/lark/load_grammar.py in load_grammar(self, grammar_text, grammar_name)
    718                 else:  # Relative import
    719                     if grammar_name == '<string>':  # Import relative to script file path if grammar is coded in script
--> 720                         base_file = os.path.abspath(sys.modules['__main__'].__file__)
    721                     else:
    722                         base_file = grammar_name  # Import relative to grammar file path if external grammar file

AttributeError: module '__main__' has no attribute '__file__'

Could we add support to relative import in interactive environment like jupyter notebook or ipython prompt?

Issue Analytics

State:
Created 5 years ago
Comments:7 (4 by maintainers)

Top GitHub Comments

1reaction

erezshcommented, Mar 9, 2019

Pushed a fix to master.

0reactions

jochasingacommented, Mar 11, 2019

This is awesome. Thanks!

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