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@@ -0,0 +1,38 @@
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+"""Backport of importlib.import_module from 3.x."""
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+# While not critical (and in no way guaranteed!), it would be nice to keep this
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+# code compatible with Python 2.3.
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+import sys
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+
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+def _resolve_name(name, package, level):
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+ """Return the absolute name of the module to be imported."""
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+ if not hasattr(package, 'rindex'):
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+ raise ValueError("'package' not set to a string")
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+ dot = len(package)
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+ for x in xrange(level, 1, -1):
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+ try:
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+ dot = package.rindex('.', 0, dot)
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+ except ValueError:
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+ raise ValueError("attempted relative import beyond top-level "
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+ "package")
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+ return "%s.%s" % (package[:dot], name)
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+
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+
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+def import_module(name, package=None):
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+ """Import a module.
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+
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+ The 'package' argument is required when performing a relative import. It
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+ specifies the package to use as the anchor point from which to resolve the
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+ relative import to an absolute import.
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+
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+ """
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+ if name.startswith('.'):
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+ if not package:
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+ raise TypeError("relative imports require the 'package' argument")
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+ level = 0
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+ for character in name:
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+ if character != '.':
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+ break
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+ level += 1
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+ name = _resolve_name(name[level:], package, level)
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+ __import__(name)
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+ return sys.modules[name]
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