A simple utility used for convert object between camel-case and snake-case in python3
CCAS only running in python3 without third-party modules required. Do not support python2
$ pip3 install ccas
Alternatively, you can just drop ccas.py file into your project—it is self-contained
Conversion supports only dict,list,tuple,str if not return the input object itself
from ccas import (camel_to_snake, camel_to_snake_lru, snake_to_camel,
snake_to_camel_lru)
"""Camel-case to snake-case."""
print(camel_to_snake('CamelCaseDemo'))
# camel_case_demo
print(camel_to_snake('checkAPIFramework'))
# check_api_framework
print(camel_to_snake({'CaseInsensitiveDict': 123}))
# {'case_insensitive_dict': 123}
print(camel_to_snake({'idCard': 'Not work in value.'}))
# {'id_card': 'Not work in value.'}
print(camel_to_snake({'allPeople': {'BoyAndrew': 'Value', 'GirlAlice': 'Value'}}))
# {'all_people': {'boy_andrew': 'Value', 'girl_alice': 'Value'}}
"""Snake-case to camel-case."""
print(snake_to_camel('snake_case_demo'))
# snakeCaseDemo
print(snake_to_camel('snake_case_demo', lower_first=False))
# SnakeCaseDemo
print(snake_to_camel('check_API_framework'))
# checkAPIFramework
print(snake_to_camel('__add_underscore_in_header_'))
# __addUnderscoreInHeader
print(snake_to_camel({'idCard': 'Not work in value.'}))
# {'idCard': 'Not work in value.'}
print(snake_to_camel({'all_people': {'boy_andrew': 'Value', 'girl_alice': 'Value'}}))
# {'allPeople': {'boyAndrew': 'Value', 'girlAlice': 'Value'}}
"""Others"""
print(camel_to_snake(None))
# None
print(camel_to_snake(True))
# True
print(camel_to_snake(123))
# 123
"""With LRU"""
print(camel_to_snake_lru('caseSensitive'))
# case_sensitive
print(snake_to_camel_lru('case_sensitive'))
# caseSensitive
camel_to_snake(obj:str or list or tuple or dict)
camel_to_snake_base(obj:str)
loads_and_camel_to_snake(obj:str or bytes)
loads_and_snake_to_camel(obj:str or bytes, lower_first=True)
snake_to_camel(obj:str or list or tuple or dict, lower_first=True)
snake_to_camel_base(obj:str, lower_first=True)
Default maxsize=128 for API which do not begins with "loads_and"
If API begins with "loads_and" it's default maxsize=64
camel_to_snake_lru(obj:str or list or tuple or dict)
camel_to_snake_base_lru(obj:str)
loads_and_camel_to_snake_lru(obj:str or bytes)
loads_and_snake_to_camel_lru(obj:str or bytes, lower_first=True)
snake_to_camel_lru(obj:str or list or tuple or dict, lower_first=True)
snake_to_camel_base_lru(obj:str, lower_first=True)
Run benchmark.py
Enviroment :
*macos 10.13.6
*python3.7.1
*3.1 GHz Intel Core i7
---------camel to snake---------
camel_to_snake_base 100000 times: 0.4019458293914795
camel_to_snake_base_lru 100000 times: 0.011708259582519531
camel_to_snake 100000 times: 0.635347843170166
camel_to_snake_lru 100000 times: 0.2188711166381836
loads_and_camel_to_snake 100000 times: 0.7058398723602295
loads_and_camel_to_snake_lru 100000 times: 0.012506961822509766
---------snake to camel---------
snake_to_camel_base 100000 times: 0.3905479907989502
snake_to_camel_base_lru 100000 times: 0.012526273727416992
snake_to_camel 100000 times: 0.5907618999481201
snake_to_camel_lru 100000 times: 0.2144930362701416
loads_and_snake_to_camel 100000 times: 0.6846120357513428
loads_and_snake_to_camel_lru 100000 times: 0.012782096862792969