在Python中写入文件时发生IOError

Question

当我尝试执行下面的文件写入时，我得到了一个错误，如下所示。。。我做错了什么？

# create a method that writes to a file.
f = open("C:UsersQamarAliDocumentsafaq's stuffmyFile.txt", "r+")
f.write('0123456789abcdef')

错误如下：

Traceback (most recent call last):
  File "<interactive input>", line 1, in <module>
IOError: [Errno 22] invalid mode ('r+') or filename: "C:\Users\QamarAli\Documentsx07faq's stuff\myFile.txt"
>>> 

Answer 1

尝试使用os.path和os.sep在windows上构造文件路径：

import os
file_path = os.path.join("C:" + os.sep, "Users", "QamarAli", "Documents", "afaq's stuff", "myFile.txt")
print file_path
print os.path.exists(file_path)

Answer 2

a是一个转义序列(看看文件名中它发生了什么(。使用Windows路径时使用原始字符串来告诉Python不要解释反斜杠转义序列：

r"C:UsersQamarAliDocumentsafaq's stuffmyFile.txt"
^ add this thing

Answer 3

在路径中使用正斜杠。

f = open("C:/Users/QamarAli/Documents/afaq's stuff/myFile.txt", "r+")
f.write('0123456789abcdef')

Answer 4

f = open("C:UsersQamarAliDocumentsafaq's stuffmyFile.txt", "a+")
f.write('0123456789abcdef')

相反，试试这个：

import os
f = open(os.path.join("C:\", "Users", "QamarAli", "Documents", "afaq's stuff", "myFile.txt"),  "r+")
f.write('0123456789abcdef')
f.close()

请确保该文件已经存在，并且路径有效。

我现在也看到了这一点，看起来你可能使用了错误的路径，看看ineterpreter给你的错误。它不是afaq's stuff，而是说x07faq's stuff加上它是我唯一看到一个斜杠的地方。我想我同意blender的观点，你们的文件路径不对。