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69 lines
1.6 KiB
Python
69 lines
1.6 KiB
Python
"""
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To ensure compatibility from Python ``2.6`` - ``3.3``, a module has been
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created. Clearly there is huge need to use conforming syntax.
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"""
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import sys
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# Cannot use sys.version.major and minor names, because in Python 2.6 it's not
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# a namedtuple.
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py_version = int(str(sys.version_info[0]) + str(sys.version_info[1]))
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# unicode function
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try:
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unicode = unicode
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except NameError:
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unicode = str
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def use_metaclass(meta, *bases):
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""" Create a class with a metaclass. """
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if not bases:
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bases = (object,)
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return meta("HackClass", bases, {})
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try:
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encoding = sys.stdout.encoding
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if encoding is None:
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encoding = 'utf-8'
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except AttributeError:
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encoding = 'ascii'
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def u(string):
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"""Cast to unicode DAMMIT!
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Written because Python2 repr always implicitly casts to a string, so we
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have to cast back to a unicode (and we now that we always deal with valid
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unicode, because we check that in the beginning).
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"""
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if py_version >= 30:
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return str(string)
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if not isinstance(string, unicode):
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return unicode(str(string), 'UTF-8')
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return string
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try:
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FileNotFoundError = FileNotFoundError
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except NameError:
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FileNotFoundError = IOError
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def utf8_repr(func):
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"""
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``__repr__`` methods in Python 2 don't allow unicode objects to be
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returned. Therefore cast them to utf-8 bytes in this decorator.
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"""
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def wrapper(self):
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result = func(self)
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if isinstance(result, unicode):
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return result.encode('utf-8')
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else:
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return result
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if py_version >= 30:
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return func
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else:
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return wrapper
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