62 lines
2.1 KiB
Python
62 lines
2.1 KiB
Python
|
import sys
|
||
|
|
|
||
|
|
|
||
|
|
def is_python_version(*versions):
|
||
|
|
for version in versions:
|
||
|
|
if (sys.version_info[0] == version[0] and sys.version_info >= version):
|
||
|
|
return True
|
||
|
|
return False
|
||
|
|
|
||
|
|
|
||
|
|
try:
|
||
|
|
from functools import total_ordering
|
||
|
|
except ImportError:
|
||
|
|
def total_ordering(cls): # noqa
|
||
|
|
"""Class decorator that fills in missing ordering methods"""
|
||
|
|
convert = {
|
||
|
|
'__lt__': [('__gt__', lambda self, other: other < self),
|
||
|
|
('__le__', lambda self, other: not other < self),
|
||
|
|
('__ge__', lambda self, other: not self < other)],
|
||
|
|
'__le__': [('__ge__', lambda self, other: other <= self),
|
||
|
|
('__lt__', lambda self, other: not other <= self),
|
||
|
|
('__gt__', lambda self, other: not self <= other)],
|
||
|
|
'__gt__': [('__lt__', lambda self, other: other > self),
|
||
|
|
('__ge__', lambda self, other: not other > self),
|
||
|
|
('__le__', lambda self, other: not self > other)],
|
||
|
|
'__ge__': [('__le__', lambda self, other: other >= self),
|
||
|
|
('__gt__', lambda self, other: not other >= self),
|
||
|
|
('__lt__', lambda self, other: not self >= other)]
|
||
|
|
}
|
||
|
|
roots = set(dir(cls)) & set(convert)
|
||
|
|
if not roots:
|
||
|
|
raise ValueError('must define at least one ordering operation: < > <= >=') # noqa
|
||
|
|
root = max(roots) # prefer __lt__ to __le__ to __gt__ to __ge__
|
||
|
|
for opname, opfunc in convert[root]:
|
||
|
|
if opname not in roots:
|
||
|
|
opfunc.__name__ = str(opname)
|
||
|
|
opfunc.__doc__ = getattr(int, opname).__doc__
|
||
|
|
setattr(cls, opname, opfunc)
|
||
|
|
return cls
|
||
|
|
|
||
|
|
|
||
|
|
PY2 = sys.version_info[0] == 2
|
||
|
|
|
||
|
|
# Python 3.x and up
|
||
|
|
text_type = str
|
||
|
|
string_types = (str,)
|
||
|
|
|
||
|
|
|
||
|
|
def as_text(v):
|
||
|
|
if v is None:
|
||
|
|
return None
|
||
|
|
elif isinstance(v, bytes):
|
||
|
|
return v.decode('utf-8')
|
||
|
|
elif isinstance(v, str):
|
||
|
|
return v
|
||
|
|
else:
|
||
|
|
raise ValueError('Unknown type %r' % type(v))
|
||
|
|
|
||
|
|
|
||
|
|
def decode_redis_hash(h):
|
||
|
|
return dict((as_text(k), h[k]) for k in h)
|