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from __future__ import unicode_literals
import inspect
import math
import numbers
from future.utils import PY2, PY3, exec_
if PY2:
from collections import Mapping
else:
from collections.abc import Mapping
if PY3:
import builtins
from collections.abc import Mapping
def apply(f, *args, **kw):
return f(*args, **kw)
from past.builtins import str as oldstr
def chr(i):
"""
Return a byte-string of one character with ordinal i; 0 <= i <= 256
"""
return oldstr(bytes((i,)))
def cmp(x, y):
"""
cmp(x, y) -> integer
Return negative if x<y, zero if x==y, positive if x>y.
Python2 had looser comparison allowing cmp None and non Numerical types and collections.
Try to match the old behavior
"""
if isinstance(x, set) and isinstance(y, set):
raise TypeError('cannot compare sets using cmp()',)
try:
if isinstance(x, numbers.Number) and math.isnan(x):
if not isinstance(y, numbers.Number):
raise TypeError('cannot compare float("nan"), {type_y} with cmp'.format(type_y=type(y)))
if isinstance(y, int):
return 1
else:
return -1
if isinstance(y, numbers.Number) and math.isnan(y):
if not isinstance(x, numbers.Number):
raise TypeError('cannot compare {type_x}, float("nan") with cmp'.format(type_x=type(x)))
if isinstance(x, int):
return -1
else:
return 1
return (x > y) - (x < y)
except TypeError:
if x == y:
return 0
type_order = [
type(None),
numbers.Number,
dict, list,
set,
(str, bytes),
]
x_type_index = y_type_index = None
for i, type_match in enumerate(type_order):
if isinstance(x, type_match):
x_type_index = i
if isinstance(y, type_match):
y_type_index = i
if cmp(x_type_index, y_type_index) == 0:
if isinstance(x, bytes) and isinstance(y, str):
return cmp(x.decode('ascii'), y)
if isinstance(y, bytes) and isinstance(x, str):
return cmp(x, y.decode('ascii'))
elif isinstance(x, list):
# if both arguments are lists take the comparison of the first non equal value
for x_elem, y_elem in zip(x, y):
elem_cmp_val = cmp(x_elem, y_elem)
if elem_cmp_val != 0:
return elem_cmp_val
# if all elements are equal, return equal/0
return 0
elif isinstance(x, dict):
if len(x) != len(y):
return cmp(len(x), len(y))
else:
x_key = min(a for a in x if a not in y or x[a] != y[a])
y_key = min(b for b in y if b not in x or x[b] != y[b])
if x_key != y_key:
return cmp(x_key, y_key)
else:
return cmp(x[x_key], y[y_key])
return cmp(x_type_index, y_type_index)
from sys import intern
def oct(number):
"""oct(number) -> string
Return the octal representation of an integer
"""
return '0' + builtins.oct(number)[2:]
raw_input = input
try:
from importlib import reload
except ImportError:
# for python2, python3 <= 3.4
from imp import reload
unicode = str
unichr = chr
xrange = range
else:
import __builtin__
from collections import Mapping
apply = __builtin__.apply
chr = __builtin__.chr
cmp = __builtin__.cmp
execfile = __builtin__.execfile
intern = __builtin__.intern
oct = __builtin__.oct
raw_input = __builtin__.raw_input
reload = __builtin__.reload
unicode = __builtin__.unicode
unichr = __builtin__.unichr
xrange = __builtin__.xrange
if PY3:
def execfile(filename, myglobals=None, mylocals=None):
"""
Read and execute a Python script from a file in the given namespaces.
The globals and locals are dictionaries, defaulting to the current
globals and locals. If only globals is given, locals defaults to it.
"""
if myglobals is None:
# There seems to be no alternative to frame hacking here.
caller_frame = inspect.stack()[1]
myglobals = caller_frame[0].f_globals
mylocals = caller_frame[0].f_locals
elif mylocals is None:
# Only if myglobals is given do we set mylocals to it.
mylocals = myglobals
if not isinstance(myglobals, Mapping):
raise TypeError('globals must be a mapping')
if not isinstance(mylocals, Mapping):
raise TypeError('locals must be a mapping')
with open(filename, "rb") as fin:
source = fin.read()
code = compile(source, filename, "exec")
exec_(code, myglobals, mylocals)
if PY3:
__all__ = ['apply', 'chr', 'cmp', 'execfile', 'intern', 'raw_input',
'reload', 'unichr', 'unicode', 'xrange']
else:
__all__ = []