Viewing file: misc.py (5.41 KB) -rw-r--r-- Select action/file-type: (+) | (+) | (+) | Code (+) | Session (+) | (+) | SDB (+) | (+) | (+) | (+) | (+) | (+) |
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__ = []
|