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"""
An implementation of the basestring type for Python 3
Example use:
>>> s = b'abc'
>>> assert isinstance(s, basestring)
>>> from past.types import str as oldstr
>>> s2 = oldstr(b'abc')
>>> assert isinstance(s2, basestring)
"""
import sys
from past.utils import with_metaclass, PY2
if PY2:
str = unicode
ver = sys.version_info[:2]
class BaseBaseString(type):
def __instancecheck__(cls, instance):
return isinstance(instance, (bytes, str))
def __subclasshook__(cls, thing):
# TODO: What should go here?
raise NotImplemented
class basestring(with_metaclass(BaseBaseString)):
"""
A minimal backport of the Python 2 basestring type to Py3
"""
__all__ = ['basestring']