如何使用操作系统修改文件路径.路径模块

Question

我的代码

import os.path #gets the module
beginning = input("Enter the file name/path you would like to upperify: ")
inFile = open(beginning, "r") 
contents = inFile.read()
moddedContents = contents.upper() #makes the contents of the file all caps

head,tail = os.path.split(beginning) #supposed to split the path
new_new_name = "UPPER" + tail #adds UPPER to the file name
final_name = os.path.join(head + new_new_name) #rejoins the path and new file name
outFile = open(final_name, "w") #creates new file with new capitalized text 
outFile.write(moddedContents)
outFile.close()

我只是想改变文件名，通过os.path.split()将UPPER添加到文件名的开头。我做错了什么吗?

Answer 1

变化

final_name = os.path.join(head + new_new_name)

final_name = head + os.sep + new_new_name

Answer 2

head from os.path.split结尾没有尾斜杠。当你通过连接head和new_new_name来连接它们

head + new_new_name 

您没有添加缺少的斜杠，因此整个路径无效:

>>> head, tail = os.path.split('/etc/shadow')
>>> head
'/etc'
>>> tail
'shadow'
>>> head + tail
'/etcshadow'

解决方案是正确使用os.path.join:

final_name = os.path.join(head, new_new_name)