Python路径操作

from os import path #os 模块常用函数，os.path模块

p = path.join(‘/etc/‘,‘sysconfig‘,‘network‘) #拼接
print(type(p),p)
print(path.exists(p)) #存在性判断
print(path.split(p)) #分隔

print(path.dirname(p),path.basename(p))#取路径和基名

print(path.abspath(‘‘),path.abspath(‘.‘)) #当前的绝对路径
print(‘*‘ * 30)

#打印父目录
p1 = path.abspath(__file__) #取当前文件名的对地路径
print(p1)

while p1 != path.dirname(p1):
    p1 = path.dirname(p1)
    print(p1)
#输出<class ‘str‘> /etc/sysconfig/network
False
(‘/etc/sysconfig‘, ‘network‘)
/etc/sysconfig network
/home/alren/PycharmProjects/Python /home/alren/PycharmProjects/Python
******************************
/home/alren/PycharmProjects/Python/file-operator.py
/home/alren/PycharmProjects/Python
/home/alren/PycharmProjects
/home/alren
/home
/

from pathlib import Path #从pathlib模快导入Path类

p1 = Path()
p2 = Path(‘‘)
p3 = Path(‘.‘) #Path()/Path(‘‘)/Path(‘.‘)都表示当前目录
print(p1)
print(p2)
print(p3)

p = Path(‘a‘,‘b‘,‘c/d‘) #当前目录下的a/b/c/d
print(p)

p = Path(‘/etc/‘,Path(),Path(‘sysconfig‘),‘network/ifconfig‘) #Path拼接
print(p)

#输出
.
.
.
a/b/c/d
/etc/sysconfig/network/ifconfig