4 examples of 'how to initialize a dictionary in python' in Python

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6def __init__(self):
7 self.word2idx = {} # word: index
8 self.idx2word = [] # position(index): word
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17def _initialize_dicts():
18 """
19 Create the colorspace encoding and decoding dictionaries.
20 """
21 enc = {}
22 for i, c1 in enumerate("ACGT"):
23 enc['N' + c1] = '4'
24 enc[c1 + 'N'] = '4'
25 enc['.' + c1] = '4'
26 enc[c1 + '.'] = '4'
27 for j, c2 in enumerate("ACGT"):
28 # XOR of nucleotides gives color
29 enc[c1 + c2] = chr(ord('0') + (i ^ j))
30 enc.update({ 'NN': '4', 'N.': '4', '.N': '4', '..': '4'})
31
32 dec = {}
33 for i, c1 in enumerate("ACGT"):
34 dec['.' + str(i)] = 'N'
35 dec['N' + str(i)] = 'N'
36 dec[c1 + '4'] = 'N'
37 dec[c1 + '.'] = 'N'
38 for j, c2 in enumerate("ACGT"):
39 # XOR of nucleotides gives color
40 dec[c1 + chr(ord('0') + (i ^ j))] = c2
41 dec['N4'] = 'N'
42
43 return (enc, dec)
7def __init__(self):
8 self.word2idx = {}
9 self.idx2word = []
22def __init__(self):
23 self._first_key = None
24 self._first_value = None
25 self._second_key = None
26 self._second_value = None
27 self._third_key = None
28 self._third_value = None
29
30 self._use_properties = True
31 self._use_dict = False
32
33 self._dict = None

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