3 examples of 'python json check if key exists' in Python

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133def _check_key_exists(d: dict, key: object, custom_exception=None) -> None:
134 """ Check if a key exists inside a dictionary. Otherwise, raise KeyError or a custom exception. """
135 try:
136 d[key]
137 except KeyError:
138 if custom_exception:
139 raise custom_exception
140 else:
141 raise KeyError
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90def check(json_data):
91 data = json.loads(json_data)
92 texts = data['ImageText']
93
94 # no text at all
95 if len(texts) == 0:
96 logging.debug("No text")
97 return True
98
99 # very little text
100 if len(texts) == 1:
101 logging.debug("One text label")
102 return True
103
104 # all the text is within the border area (probably an artifact)
105 if all_in_border(data['ImageBB'], texts):
106 logging.debug("All text is in upper or lower border")
107 return True
108
109 # almost the whole image is text
110 # use crude implementation where we just sum up the text area
111 # and kick something out if >50% is text
112 a = area(data['ImageBB'])
113 if is_sum_larger(a*0.5, texts):
114 logging.debug("Almost everything is text")
115 return True
116
117 return False
38def has_key(key, keys):
39 for k in keys:
40 if k['id'] == key:
41 return True
42 return False

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