Mercurial > repos > shellac > guppy_basecaller

annotate env/lib/python3.7/site-packages/rdflib/compat.py @ 0:26e78fe6e8c4 draft

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"planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
author shellac
date Sat, 02 May 2020 07:14:21 -0400
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1 #
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2 # code to simplify supporting older python versions
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3 #
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4
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5
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6 import sys
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7
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8 from decimal import Decimal
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9
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10 if sys.version_info[:2] < (2, 7):
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11
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12 # Pre-2.7 decimal and float did not compare correctly
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13
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14 def numeric_greater(a, b):
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15 if isinstance(a, Decimal) and isinstance(b, float):
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16 return float(a) > b
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17 elif isinstance(a, float) and isinstance(b, Decimal):
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18 return a > float(b)
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19 else:
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20 return a > b
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21
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22 else:
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23
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24 def numeric_greater(a, b):
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25 return a > b
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26
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27
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28 try:
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29 from lxml import etree
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30 except ImportError:
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31 try:
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32 # Python 2.5
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33 import xml.etree.cElementTree as etree
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34 except ImportError:
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35 try:
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36 # Python 2.5
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37 import xml.etree.ElementTree as etree
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38 except ImportError:
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39 try:
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40 # normal cElementTree install
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41 import cElementTree as etree
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42 except ImportError:
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43 try:
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44 # normal ElementTree install
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45 import elementtree.ElementTree as etree
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46 except ImportError:
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47 raise Exception("Failed to import ElementTree from any known place")
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48
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49 try:
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50 etree_register_namespace = etree.register_namespace
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51 except AttributeError:
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52
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53 import xml.etree.ElementTree as etreenative
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54
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55 def etree_register_namespace(prefix, uri):
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56 etreenative._namespace_map[uri] = prefix
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57
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58 try:
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59 from functools import cmp_to_key
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60 except ImportError:
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61 # Backport from Py2.7 for Py2.6:
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62 def cmp_to_key(mycmp):
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63 """Convert a cmp= function into a key= function"""
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64 class K(object):
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65 __slots__ = ['obj']
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66 def __init__(self, obj, *args):
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67 self.obj = obj
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68 def __lt__(self, other):
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69 return mycmp(self.obj, other.obj) < 0
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70 def __gt__(self, other):
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71 return mycmp(self.obj, other.obj) > 0
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72 def __eq__(self, other):
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73 return mycmp(self.obj, other.obj) == 0
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74 def __le__(self, other):
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75 return mycmp(self.obj, other.obj) <= 0
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76 def __ge__(self, other):
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77 return mycmp(self.obj, other.obj) >= 0
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78 def __ne__(self, other):
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79 return mycmp(self.obj, other.obj) != 0
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80 def __hash__(self):
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81 raise TypeError('hash not implemented')
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82 return K