Source Code for Module dns._compat

 1  import sys 
 2  import decimal 
 3  from decimal import Context 
 4   
 5  if sys.version_info > (3,): 
 6      long = int 
 7      xrange = range 
 8  else: 
 9      long = long  # pylint: disable=long-builtin 
10      xrange = xrange  # pylint: disable=xrange-builtin 
11   
12  # unicode / binary types 
13  if sys.version_info > (3,): 
14      text_type = str 
15      binary_type = bytes 
16      string_types = (str,) 
17      unichr = chr 
18 -    def maybe_decode(x): 
19          return x.decode() 
20 -    def maybe_encode(x): 
21          return x.encode() 
22  else: 
23      text_type = unicode  # pylint: disable=unicode-builtin, undefined-variable 
24      binary_type = str 
25      string_types = ( 
26          basestring,  # pylint: disable=basestring-builtin, undefined-variable 
27      ) 
28      unichr = unichr  # pylint: disable=unichr-builtin 
29 -    def maybe_decode(x): 
30          return x 
31 -    def maybe_encode(x): 
32          return x 
33   
34   
35 -def round_py2_compat(what): 
36      """ 
37      Python 2 and Python 3 use different rounding strategies in round(). This 
38      function ensures that results are python2/3 compatible and backward 
39      compatible with previous py2 releases 
40      :param what: float 
41      :return: rounded long 
42      """ 
43      d = Context( 
44          prec=len(str(long(what))),  # round to integer with max precision 
45          rounding=decimal.ROUND_HALF_UP 
46      ).create_decimal(str(what))  # str(): python 2.6 compat 
47      return long(d) 
48