import os
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import pkg_resources
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from pyramid.compat import string_types
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from pyramid.path import package_path, package_name
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def resolve_asset_spec(spec, pname='__main__'):
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if pname and not isinstance(pname, string_types):
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pname = pname.__name__ # as package
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if os.path.isabs(spec):
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return None, spec
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filename = spec
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if ':' in spec:
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pname, filename = spec.split(':', 1)
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elif pname is None:
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pname, filename = None, spec
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return pname, filename
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def asset_spec_from_abspath(abspath, package):
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""" Try to convert an absolute path to a resource in a package to
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a resource specification if possible; otherwise return the
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absolute path. """
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if getattr(package, '__name__', None) == '__main__':
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return abspath
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pp = package_path(package) + os.path.sep
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if abspath.startswith(pp):
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relpath = abspath[len(pp) :]
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return '%s:%s' % (
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package_name(package),
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relpath.replace(os.path.sep, '/'),
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)
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return abspath
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# bw compat only; use pyramid.path.AssetResolver().resolve(spec).abspath()
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def abspath_from_asset_spec(spec, pname='__main__'):
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if pname is None:
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return spec
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pname, filename = resolve_asset_spec(spec, pname)
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if pname is None:
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return filename
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return pkg_resources.resource_filename(pname, filename)
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