diff --git a/sloth/core/utils.py b/sloth/core/utils.py index 037a415..1facf3f 100644 --- a/sloth/core/utils.py +++ b/sloth/core/utils.py @@ -1,5 +1,5 @@ from sloth.core import exceptions -import importlib +from sloth.utils import importlib def import_callable(module_path_name): """ diff --git a/sloth/utils/__init__.py b/sloth/utils/__init__.py new file mode 100644 index 0000000..e69de29 diff --git a/sloth/utils/importlib.py b/sloth/utils/importlib.py new file mode 100644 index 0000000..bb6f8f2 --- /dev/null +++ b/sloth/utils/importlib.py @@ -0,0 +1,38 @@ +# taken from django... + +# Taken from Python 2.7 with permission from/by the original author. +import sys + +def _resolve_name(name, package, level): + """Return the absolute name of the module to be imported.""" + if not hasattr(package, 'rindex'): + raise ValueError("'package' not set to a string") + dot = len(package) + for x in xrange(level, 1, -1): + try: + dot = package.rindex('.', 0, dot) + except ValueError: + raise ValueError("attempted relative import beyond top-level " + "package") + return "%s.%s" % (package[:dot], name) + + +def import_module(name, package=None): + """Import a module. + + The 'package' argument is required when performing a relative import. It + specifies the package to use as the anchor point from which to resolve the + relative import to an absolute import. + + """ + if name.startswith('.'): + if not package: + raise TypeError("relative imports require the 'package' argument") + level = 0 + for character in name: + if character != '.': + break + level += 1 + name = _resolve_name(name[level:], package, level) + __import__(name) + return sys.modules[name]