[Distutils] Q about best practices now (or near future)

[Vinay Sajip]

Marcus Smith <qwcode <at> gmail.com> writes:

> the idea to have pip vendor setuptools crumbles a bit due to console 
scripts 
needing pkg_resources.

They don't *need* pkg_resources. All they're doing is taking a module name 
and the name of a nested object in the form 'a.b.c', and distlib-generated 
scripts show that no external references are needed. Here's the template for 
a distlib-generated script:

SCRIPT_TEMPLATE = '''%(shebang)s
if __name__ == '__main__':
    import sys, re

    def _resolve(module, func):
        __import__(module)
        mod = sys.modules[module]
        parts = func.split('.')
        result = getattr(mod, parts.pop(0))
        for p in parts:
            result = getattr(result, p)
        return result

    try:
        sys.argv[0] = re.sub('-script.pyw?$', '', sys.argv[0])

        func = _resolve('%(module)s', '%(func)s')
        rc = func() # None interpreted as 0
    except Exception as e:  # only supporting Python >= 2.6
        sys.stderr.write('%%s\\n' %% e)
        rc = 1
    sys.exit(rc)
'''

I don't see any reason why setuptools couldn't be updated to use this 
approach.

Regards,

Vinay Sajip