[Tutor] ModuleNotFoundError in Terminal, PyCharm OK

[trent shipley]

Hi dn,

#1 was not very useful, but #5
https://docs.python.org/3/reference/import.html#:~:text=5.4.5.-,module.__path__,search%20for%20modules%20during%20import.
was
quite useful

I discovered that bash had no PYTHONPATH environment variable, and that
PyCharm had obligingly intelligently populated it.  (And if I changed the
file structure, I had to manually inform PyCharm I had changed it, even if
I used the "refactor" feature.)

I wound up with this:

# shdroll.py
import sys
sys.path.extend(['../../..',               # Important
                 '../../../src',           # Stuff
                 '../../../src/core'])     # Here
from simple_hdroll_cli_parser import SimpleHDRollCliParser
from src.core import core

parse_cli_args = SimpleHDRollCliParser()
kwargs = parse_cli_args.parse()

if kwargs.add is not None:
    transform = core.add_currying(kwargs.add)
elif kwargs.mult is not None:
    transform = core.multiply_currying(kwargs.mult)
else:
    transform = None  # not strictly necessary, but it makes my brain hurt
less

# Create a die
die = core.IntegerDie(transform_fn=transform,
                      sides=kwargs.sides,
                      bottom=kwargs.base)


*

*

*



print(rolls.to_string())

-------

I also wound up with a src.py file in the ./hackable_dice_roller/src
directory so it would stop complaining about a missing module in the src
package.  src.py has one line.

from src.core import core

Was that what you had in mind, or did I come up with a singularly ugly and
unPythonic solution?



On Tue, Jun 27, 2023 at 3:14 PM dn via Tutor <tutor at python.org> wrote:

> On 28/06/2023 08.35, trent shipley wrote:
> > PyCharm can run the code below or process the marked line, #2, in the
> > console, as in the snip, below, but I can't figure out how to feed the
> > program command line args.
>
> Recommend a review of the way Python keeps track of various and multiple
> directories, and thus how/where it finds the modules for import-ing:
> https://docs.python.org/3/using/cmdline.html
>
> Thereafter, add debug code/create snippet to display the PYTHONPATH, and
> run from (same dir as this) in both PyCharm and terminal.
>
> Illumination will follow!
>
> --
> Regards,
> =dn
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