logics CLI not working when installed from PyPI

[sveneberth]

I installed logics

$ python -m pip install logics-py -U
Defaulting to user installation because normal site-packages is not writeable
Requirement already satisfied: logics-py in /home/sven/.local/lib/python3.10/site-packages (0.0.3)

and tried to run the CLI

$ python -m logics
Traceback (most recent call last):
  File "/usr/lib/python3.10/runpy.py", line 196, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "/usr/lib/python3.10/runpy.py", line 86, in _run_code
    exec(code, run_globals)
  File "/home/sven/.local/lib/python3.10/site-packages/logics/__main__.py", line 2, in <module>
    from logics import Logics
ImportError: cannot import name 'Logics' from 'logics' (unknown location)

But this failed. How can I test expression?

[phorward]

Hello @sveneberth, thanks for filing the issue.

Logics is currently beneath an entire rewrite. Therefore, logics-js, the JavaScript version, is currently working; logics-py the Python version, is right now in a very early stage, and only supports execution of simple expressions. I'll take a look at your issue soon.

The easiest way to get it currently running is, to clone the repository and do

~/logics $ cd logics-py/
~/logics/logics-py $ python -m logics -h
usage: __main__.py [-h] [-v var value] [-V] expression

Logics

positional arguments:
  expression            Expression to be parsed and executed

options:
  -h, --help            show this help message and exit
  -v var value, --var var value
                        Assign variables
  -V, --version         show program's version number and exit
~/logics/logics-py $ python -m logics 1+2*3+4
add
 add
  Number (1)
  mul
   Number (2)
   Number (3)
 Number (4)
11

[sveneberth]

Hey @phorward, thanks for your quick response.

I had already checked out the repo. But only tried to run the __main__ directly. But that failed as well:

python __main__.py

$ python __main__.py 
Traceback (most recent call last):
  File "/.../logics/logics-py/logics/__main__.py", line 2, in <module>
    from logics import Logics
  File "/.../logics/logics-py/logics/logics.py", line 5, in <module>
    from .parser import LogicsParser
ImportError: attempted relative import with no known parent package

I didn't get the idea to run it as a module. That was the trick. Thank you!