Mercurial > repos > guerler > springsuite

annotate planemo/lib/python3.7/site-packages/lxml/html/_setmixin.py @ 1:56ad4e20f292 draft

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"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
author guerler
date Fri, 31 Jul 2020 00:32:28 -0400
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1 try:
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2 from collections.abc import MutableSet
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3 except ImportError:
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4 from collections import MutableSet
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5
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6
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7 class SetMixin(MutableSet):
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8
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9 """
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10 Mix-in for sets. You must define __iter__, add, remove
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11 """
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12
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13 def __len__(self):
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14 length = 0
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15 for item in self:
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16 length += 1
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17 return length
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18
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19 def __contains__(self, item):
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20 for has_item in self:
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21 if item == has_item:
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22 return True
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23 return False
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24
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25 issubset = MutableSet.__le__
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26 issuperset = MutableSet.__ge__
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27
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28 union = MutableSet.__or__
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29 intersection = MutableSet.__and__
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30 difference = MutableSet.__sub__
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31 symmetric_difference = MutableSet.__xor__
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32
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33 def copy(self):
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34 return set(self)
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35
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36 def update(self, other):
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37 self |= other
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38
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39 def intersection_update(self, other):
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40 self &= other
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41
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42 def difference_update(self, other):
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43 self -= other
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44
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45 def symmetric_difference_update(self, other):
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46 self ^= other
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47
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48 def discard(self, item):
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49 try:
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50 self.remove(item)
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51 except KeyError:
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52 pass
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53
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54 @classmethod
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55 def _from_iterable(cls, it):
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56 return set(it)