/usr/lib/python2.7/dist-packages/measurement/utils.py is in python-measurement 2.0.1-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 | import inspect
import sys
if sys.version_info >= (2,7,2):
from functools import total_ordering
else:
# For Python < 2.7.2. Python 2.6 does not have total_ordering, and
# total_ordering in 2.7 versions prior to 2.7.2 is buggy. See
# http://bugs.python.org/issue10042 for details. For these versions use
# code borrowed from Python 2.7.3.
def total_ordering(cls):
"""Class decorator that fills in missing ordering methods"""
convert = {
'__lt__': [('__gt__', lambda self, other: not (self < other or self == other)),
('__le__', lambda self, other: self < other or self == other),
('__ge__', lambda self, other: not self < other)],
'__le__': [('__ge__', lambda self, other: not self <= other or self == other),
('__lt__', lambda self, other: self <= other and not self == other),
('__gt__', lambda self, other: not self <= other)],
'__gt__': [('__lt__', lambda self, other: not (self > other or self == other)),
('__ge__', lambda self, other: self > other or self == other),
('__le__', lambda self, other: not self > other)],
'__ge__': [('__le__', lambda self, other: (not self >= other) or self == other),
('__gt__', lambda self, other: self >= other and not self == other),
('__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: < > <= >=')
root = max(roots) # prefer __lt__ to __le__ to __gt__ to __ge__
for opname, opfunc in convert[root]:
if opname not in roots:
opfunc.__name__ = opname
opfunc.__doc__ = getattr(int, opname).__doc__
setattr(cls, opname, opfunc)
return cls
def get_all_measures():
from measurement import measures
m = []
for name, obj in inspect.getmembers(measures):
if inspect.isclass(obj):
m.append(obj)
return m
def guess(value, unit, measures=None):
if measures is None:
measures = get_all_measures()
for measure in measures:
try:
return measure(**{unit: value})
except AttributeError:
pass
raise ValueError(
'No valid measure found for %s %s; checked %s' % (
value,
unit,
', '.join([m.__name__ for m in measures])
)
)
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