Mercurial > repos > shellac > guppy_basecaller

comparison env/lib/python3.7/site-packages/rdflib/compat.py @ 5:9b1c78e6ba9c draft default tip

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"planemo upload commit 6c0a8142489327ece472c84e558c47da711a9142"
author shellac
date Mon, 01 Jun 2020 08:59:25 -0400
parents 79f47841a781
children
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4:79f47841a781 5:9b1c78e6ba9c
1 #
2 # code to simplify supporting older python versions
3 #
4
5
6 import sys
7
8 from decimal import Decimal
9
10 if sys.version_info[:2] < (2, 7):
11
12 # Pre-2.7 decimal and float did not compare correctly
13
14 def numeric_greater(a, b):
15 if isinstance(a, Decimal) and isinstance(b, float):
16 return float(a) > b
17 elif isinstance(a, float) and isinstance(b, Decimal):
18 return a > float(b)
19 else:
20 return a > b
21
22 else:
23
24 def numeric_greater(a, b):
25 return a > b
26
27
28 try:
29 from lxml import etree
30 except ImportError:
31 try:
32 # Python 2.5
33 import xml.etree.cElementTree as etree
34 except ImportError:
35 try:
36 # Python 2.5
37 import xml.etree.ElementTree as etree
38 except ImportError:
39 try:
40 # normal cElementTree install
41 import cElementTree as etree
42 except ImportError:
43 try:
44 # normal ElementTree install
45 import elementtree.ElementTree as etree
46 except ImportError:
47 raise Exception("Failed to import ElementTree from any known place")
48
49 try:
50 etree_register_namespace = etree.register_namespace
51 except AttributeError:
52
53 import xml.etree.ElementTree as etreenative
54
55 def etree_register_namespace(prefix, uri):
56 etreenative._namespace_map[uri] = prefix
57
58 try:
59 from functools import cmp_to_key
60 except ImportError:
61 # Backport from Py2.7 for Py2.6:
62 def cmp_to_key(mycmp):
63 """Convert a cmp= function into a key= function"""
64 class K(object):
65 __slots__ = ['obj']
66 def __init__(self, obj, *args):
67 self.obj = obj
68 def __lt__(self, other):
69 return mycmp(self.obj, other.obj) < 0
70 def __gt__(self, other):
71 return mycmp(self.obj, other.obj) > 0
72 def __eq__(self, other):
73 return mycmp(self.obj, other.obj) == 0
74 def __le__(self, other):
75 return mycmp(self.obj, other.obj) <= 0
76 def __ge__(self, other):
77 return mycmp(self.obj, other.obj) >= 0
78 def __ne__(self, other):
79 return mycmp(self.obj, other.obj) != 0
80 def __hash__(self):
81 raise TypeError('hash not implemented')
82 return K