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"""Utility code for constructing importers, etc."""
from ._bootstrap import ModuleManager
from ._bootstrap import module_for_loader
from ._bootstrap import set_loader
from ._bootstrap import set_package
from ._bootstrap import _resolve_name
def resolve_name(name, package):
"""Resolve a relative module name to an absolute one."""
if not name.startswith('.'):
return name
elif not package:
raise ValueError('{!r} is not a relative name '
'(no leading dot)'.format(name))
level = 0
for character in name:
if character != '.':
break
level += 1
return _resolve_name(name[level:], package, level)
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