PUR can't handle wildcard * in requirements.txt

[evetion]

Hi there,

When I put wildcards in the requirements.txt like this:
Django==1.8.*

PUR raises and InvalidVersion:
pip._vendor.packaging.version.InvalidVersion: Invalid version: '1.8.*'

Wildcards are supported by pip and PEP 508
https://pip.pypa.io/en/stable/reference/pip_install/#example-requirements-file
https://www.python.org/dev/peps/pep-0508/#grammar

[alanhamlett]

I'll upgrade pip to support wildcards. When finding wildcards, I'm assuming everyone wants the non-wildcard parts of the package version spec upgraded, with the wildcard left in place?

[alanhamlett]

Fixed in v4.0.1, however it doesn't upgrade the package instead skips it.

[evetion]

Thanks for the quick fix! I think the skip is indeed the best action.

[jmhernandez-circutor]

I agree that the default behaviour would be to skip.

But could be an option to force the non-wildcard parts of the package version spec upgraded? I'm asking before opening an issue.

[alanhamlett]

Sure, we could do that here:
683ea72#diff-c8f2dfc160ea901f520fa3f134e40df6R273

Not sure at the moment how that would be implemented, but we'll probably have to re-parse the Version after removing the wildcard part then add it back if upgraded.

[jmhernandez-circutor]

That's what I do currently by means of a script:

        # Change * to 0
        for line in fileinput.input(temp_updated, inplace=True, backup='.orig'):
            print(line.rstrip().replace('*', '0'))

        # Check upgrade changes
        pur_file = open(f'{temp_root}.pur.txt', 'w')
        subprocess.run(['pur', '-r', temp_updated], check=True, stdout=pur_file)

        # Change patch to *
        for line in fileinput.input(temp_updated, inplace=True):
            line = re.sub(r'(==\d+\.\d+\.)(\d+)', r'\1*', line.rstrip())
            print(line)