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import sys
PY2 = sys.version_info < (3, 0)
PY36 = sys.version_info >= (3, 6)
PYPY = hasattr(sys, "pypy_version_info")
_HAS_FOLD = PY36
try: # Python 2
long = long
unicode = unicode
basestring = basestring
except NameError: # Python 3
long = int
unicode = str
basestring = str
def decode(string, encodings=None):
if not PY2 and not isinstance(string, bytes):
return string
if PY2 and isinstance(string, unicode):
return string
encodings = encodings or ["utf-8", "latin1", "ascii"]
for encoding in encodings:
try:
return string.decode(encoding)
except (UnicodeEncodeError, UnicodeDecodeError):
pass
return string.decode(encodings[0], errors="ignore")
def encode(string, encodings=None):
if not PY2 and isinstance(string, bytes):
return string
if PY2 and isinstance(string, str):
return string
encodings = encodings or ["utf-8", "latin1", "ascii"]
for encoding in encodings:
try:
return string.encode(encoding)
except (UnicodeEncodeError, UnicodeDecodeError):
pass
return string.encode(encodings[0], errors="ignore")
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