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problems with money_maker.py

See original GitHub issue

doing tests in python 3.6 everything works correctly.

The problem happens when using python version 3.8.3 it throws the following error:

ValueError at /es/admin/medexample/product/
Can not add/substract money in different currencies.
Request Method:	GET
Request URL:	http://localhost:8000/es/admin/medexample/product/
Django Version:	3.0.7
Exception Type:	ValueError
Exception Value:	
Can not add/substract money in different currencies.
Exception Location:	/home/kira/.virtualenvs/vmedexample/lib/python3.8/site-packages/shop/money/money_maker.py in _assert_addable, line 220
Python Executable:	/home/kira/.virtualenvs/vmedexample/bin/python
Python Version:	3.8.3
Python Path:	
['/home/kira/Desarrollo/implementacion/medexample',
 '/usr/lib/python38.zip',
 '/usr/lib/python3.8',
 '/usr/lib/python3.8/lib-dynload',
 '/home/kira/.virtualenvs/vmedexample/lib/python3.8/site-packages']
Server time:	Mié, 17 Jun 2020 17:46:00 +0000


/home/kira/.virtualenvs/vmedexample/lib/python3.8/site-packages/shop/money/money_maker.py in _assert_addable
        return 10**CURRENCIES[cls._currency_code][1]
    def _assert_addable(self, other):
        if not other:
            # so that we can add/substract zero or None to any currency
            return self.__class__('0')
        if self._currency_code != getattr(other, '_currency_code', None):
            raise ValueError("Can not add/substract money in different currencies.") …
        return other
    def _assert_multipliable(self, other):
        if hasattr(other, '_currency_code'):
            raise ValueError("Can not multiply currencies.")
        if isinstance(other, float):
▼ Local vars
Variable	Value
other	
Decimal('399.00')
self	
MoneyInEUR('399.000')

It is a project started with “cookiecutter-django-shop”, with all the data loaded with proof.

The error comes out when trying to access:

“http://localhost:8000/es/admin/medexample/product/”

clarify that it ran with python version 3.8.3

Issue Analytics

State:
Created 3 years ago
Comments:6 (5 by maintainers)

Top GitHub Comments

1reaction

darekmecocommented, Oct 29, 2020

I can confirm, Python 3.8.6, default settings

 File "/home/darek/.local/share/virtualenvs/my-shop-OpEeVNpI/lib/python3.8/site-packages/shop/money/money_maker.py", line 220, in _assert_addable
    raise ValueError("Can not add/substract money in different currencies.")
ValueError: Can not add/substract money in different currencies.

0reactions

jriefcommented, Oct 30, 2020

@darekmeco would you mind adding a unit test which reproduces this error on Python-3.8 but works on Python<=3.7?

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