def smart_text(s, encoding='utf-8', strings_only=False, errors='strict'):
"""Returns a unicode object representing 's'. Treats bytes using the
'encoding' codec.
If strings_only is True, don't convert (some) non-string-like objects.
"""
if isinstance(s, six.text_type):
return s
if strings_only and not isinstance(s, six.string_types):
return s
if not isinstance(s, six.string_types):
if hasattr(s, '__unicode__'):
s = s.__unicode__()
else:
if six.PY3:
if isinstance(s, six.binary_type):
s = six.text_type(s, encoding, errors)
else:
s = six.text_type(s)
else:
s = six.text_type(six.binary_type(s), encoding, errors)
else:
# Note: We use .decode() here, instead of six.text_type(s, encoding,
# errors), so that if s is a SafeBytes, it ends up being a
# SafeText at the end.
s = s.decode(encoding, errors)
return s
def smart_bytes(s, encoding='utf-8', strings_only=False, errors='strict'):
"""Returns a bytes version of 's', encoded as specified in 'encoding'.
If strings_only is True, don't convert (some) non-string-like objects.
"""
if isinstance(s, six.binary_type):
if encoding == 'utf-8':
return s
else:
return s.decode('utf-8', errors).encode(encoding, errors)
if strings_only and not isinstance(s, six.text_type):
return s
if not isinstance(s, six.string_types):
try:
if six.PY3:
return six.text_type(s).encode(encoding)
else:
return six.binary_type(s)
except UnicodeEncodeError:
return six.text_type(s).encode(encoding, errors)
else:
return s.encode(encoding, errors)
