Python determines whether the directory exists and creates if it does not exist

EG1:

If Os.path.isdir (' E:\test '):
Pass
Else
Os.mkdir (' E:\test ')

# #os. mkdir () Only one directory is created and cannot be created Cascade

EG2:

If not os.path.exists (' E:\test '): # # #判断文件是否存在, returns a Boolean value
Os.makedirs (' E:\test ')

# #os. Makedirs () This, along with the middle directory, will be created, similar to the parameter mkdir-p

EG3:

Try
fp = open ("File_path")
What is the difference between catch exception:except and catch?
Os.mkdir (' File_path ') # #os. mkdir () will create only one directory, not cascade creation, but with the awareness of exception handling
fp = open ("File_path"

EG4: Measured

#!/usr/bin/env python
Import OS
File_path= '/home/wuxy/aaa111/222/333/444.txt ' # # #444. txt does not act as a file but as a directory
If Os.path.exists (' File_path '): # # directory exists, return to True
print ' Dir NOT exists '
Os.makedirs (File_path) # # #FILE_PATH不用加引号. Otherwise it will be an error
Else
print ' dir exists '

Python determines whether the directory exists and creates if it does not exist