Source code for sqlobject.compat

importos
importsys
importtypes
# Credit to six authors: https://pypi.org/project/six/
# License: MIT

[docs]
defwith_metaclass(meta, *bases):
"""Create a base class with a metaclass."""
 # This requires a bit of explanation: the basic idea is to make a dummy
 # metaclass for one level of class instantiation that replaces itself with
 # the actual metaclass.
 classmetaclass(meta):
 def__new__(cls, name, this_bases, d):
 return meta(name, bases, d)
 return type.__new__(metaclass, 'temporary_class', (), {})
# Compatability definitions (inspired by six)
PY2 = sys.version_info[0] < 3
if PY2:
 # disable flake8 checks on python 3
 string_type = basestring # noqa
 unicode_type = unicode # noqa
 class_types = (type, types.ClassType)
 buffer_type = buffer # noqa
else:
 string_type = str
 unicode_type = str
 class_types = (type,)
 buffer_type = memoryview
if PY2:
 importimp
 defload_module_from_file(base_name, module_name, filename):
 fp, pathname, description = imp.find_module(
 base_name, [os.path.dirname(filename)])
 try:
 module = imp.load_module(module_name, fp, pathname, description)
 finally:
 fp.close()
 return module
else:
 importimportlib.util

[docs]
 defload_module_from_file(base_name, module_name, filename):
 specs = importlib.util.spec_from_file_location(module_name, filename)
 loader = specs.loader
 if hasattr(loader, 'create_module'):
 module = loader.create_module(specs)
 else:
 module = None
 if module is None:
 return specs.loader.load_module()
 else:
 loader.exec_module(module)
 return module