ini格式文件

ini文件是Initialization File的縮寫，平時用於存儲軟件的的配置文件。例如：MySQL數據庫的配置文件。

 

例如：

　　[mysqld]

　　datadir=/var/lib/mysql
　　socket=/var/lib/mysql/mysql.sock
　　log-bin=py-mysql-bin
　　character-set-server=utf8
　　collation-server=utf8_general_ci
　　log-error=/var/log/mysqld.log
　　# Disabling symbolic-links is recommended to prevent assorted security risks
　　symbolic-links=0

　　[mysqld_safe]
　　log-error=/var/log/mariadb/mariadb.log
　　pid-file=/var/run/mariadb/mariadb.pid

　　[client]
　　default-character-set=utf8

 

這種格式是可以直接使用open來出來，考慮到自己處理比較麻煩，所以Python為我們提供了更為方便的方式。

 

import configparser

config = configparser.ConfigParser()
config.read('files/my.ini', encoding='utf-8')
# config.read('/Users/wupeiqi/PycharmProjects/luffyCourse/day09/files/my.ini', encoding='utf-8')

# 1.獲取所有的節點
"""
result = config.sections()
print(result)  # ['mysqld', 'mysqld_safe', 'client']
"""

# 2.獲取節點下的鍵值
"""
result = config.items("mysqld_safe")
print(result)  # [('log-error', '/var/log/mariadb/mariadb.log'), ('pid-file', '/var/run/mariadb/mariadb.pid')]

for key, value in config.items("mysqld_safe"):
    print(key, value)
"""

# 3.獲取某個節點下的鍵對應的值
"""
result = config.get("mysqld","collation-server")
print(result)
"""

# 4.其他

# 4.1 是否存在節點
# v1 = config.has_section("client")
# print(v1)

# 4.2 添加一個節點
# config.add_section("group")
# config.set('group','name','wupeiqi')
# config.set('client','name','wupeiqi')
# config.write(open('files/new.ini', mode='w', encoding='utf-8'))

# 4.3 刪除
# config.remove_section('client')
# config.remove_option("mysqld", "datadir")
# config.write(open('files/new.ini', mode='w', encoding='utf-8'))

 

讀取所有節點

 

import configparser

config = configparser.ConfigParser()
config.read('/Users/wupeiqi/PycharmProjects/luffyCourse/day09/files/my.conf', encoding='utf-8')
# config.read('my.conf', encoding='utf-8')
ret = config.sections()
print(ret) 

>>輸出
['mysqld', 'mysqld_safe', 'client']

 

讀取節點下的鍵值

 

import configparser

config = configparser.ConfigParser()
config.read('/Users/wupeiqi/PycharmProjects/luffyCourse/day09/files/my.conf', encoding='utf-8')
# config.read('my.conf', encoding='utf-8')
item_list = config.items("mysqld_safe")
print(item_list) 

>>輸出
[('log-error', '/var/log/mariadb/mariadb.log'), ('pid-file', '/var/run/mariadb/mariadb.pid')]

 

讀取節點下值（根據 節點+鍵 ）

 

import configparser

config = configparser.ConfigParser()
config.read('/Users/wupeiqi/PycharmProjects/luffyCourse/day09/files/my.conf', encoding='utf-8')

value = config.get('mysqld', 'log-bin')
print(value)

>>輸出
py-mysql-bin

 

檢查、刪除、添加節點

 

import configparser

config = configparser.ConfigParser()
config.read('/Users/wupeiqi/PycharmProjects/luffyCourse/day09/files/my.conf', encoding='utf-8')
# config.read('my.conf', encoding='utf-8')


# 檢查
has_sec = config.has_section('mysqld')
print(has_sec)

# 添加節點
config.add_section("SEC_1")
# 節點中設置鍵值
config.set('SEC_1', 'k10', "123")
config.set('SEC_1', 'name', "哈哈哈哈哈")

config.add_section("SEC_2")
config.set('SEC_2', 'k10', "123")
# 內容寫入新文件
config.write(open('/Users/wupeiqi/PycharmProjects/luffyCourse/day09/files/xxoo.conf', 'w'))


# 刪除節點
config.remove_section("SEC_2")
# 刪除節點中的鍵值
config.remove_option('SEC_1', 'k10')
config.write(open('/Users/wupeiqi/PycharmProjects/luffyCourse/day09/files/new.conf', 'w'))