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