Python 讀取MySQL 配置檔案的指令碼

記錄乙個讀取my.cnf配置的指令碼,可以基於該函式做一些mysql 後端運維工作。各位可以基於自己的需求進行修改。

指令碼名稱 getcnf.py

import sys 

import os
def read_cnf(cnf_path):
assert cnf_path is not none and os.path.exists(cnf_path)
cnf_dict = {}
cur_section = none
with open(cnf_path) as cnf_reader:
for line in cnf_reader.readlines():
line = ''.join(line.split())
if len(line) <= 0 or '#' == line[0]:
continue
if '[' == line[0] and ']' == line[-1]:
cur_section = line[len('['):len(line) - 1]
if cur_section not in cnf_dict:
cnf_dict[cur_section] = {}
elif '=' in line and line.count('=') == 1:
if cur_section is none:
logger.warning('cur_section is none')
continue
tokens = line.split('=')
key = tokens[0].replace('"', '').replace("'", '')
value = tokens[1].replace('"', '').replace("'", "")
cnf_dict[cur_section][key] = value
return cnf_dict
def main():
cnf_path="/u01/my3353/my.cnf"
mycnf = read_cnf(cnf_path)
print mycnf['mysqld']['tmpdir']
if __name__ == '__main__':
main()

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