Support for listing all functions programmatically.

[philmas]

Great library first of all. I am not sure if it is wrong from my side, but some of the modules on py-modindex cannot be found or accessed below. Some modules are found, for example for Spain, but then partially they are not listed either.

python3 -c "
import stdnum.gb

print('stdnum.gb:')
for attr in dir(stdnum.gb):
    if not attr.startswith('_'):
        print(f'  - {attr}')
"

result:

stdnum.gb:

[philmas]

I have created a pull request for this issue that solves it for all countries #479

[arthurdejong]

From my comment on the PR:

Thanks for your suggestion. I don't think I fully understand the use case behind the change. Introspection works fine with pkgutil.walk_packages() and there is also already a stdnum.util.get_number_modules() function that can help you with that.

For example, to get all the UK number format modules, you can do:

>>> from stdnum.util import get_number_modules
>>> [module.__name__ for module in get_number_modules('stdnum.gb')]
['stdnum.gb.nhs', 'stdnum.gb.sedol', 'stdnum.gb.upn', 'stdnum.gb.utr', 'stdnum.gb.vat']

(by default it will list all the number formats)

[arthurdejong]

Closing this issue given that the functionality already seems to be available. Feel free to re-open.