通过 Python 创建文件和目录 [英] Creating files and directories via Python

问题描述

我在创建目录然后打开/创建/写入指定目录中的文件时遇到问题.原因对我来说似乎不清楚.我正在使用 os.mkdir() 和

I'm having trouble creating a directory and then opening/creating/writing into a file in the specified directory. The reason seems unclear to me. I'm using os.mkdir() and

path=chap_name
print "Path : "+chap_path                       #For debugging purposes
if not os.path.exists(path):
    os.mkdir(path)
temp_file=open(path+'/'+img_alt+'.jpg','w')
temp_file.write(buff)
temp_file.close()
print " ... Done"

我收到错误

OSError: [Errno 2] No such file or directory: 'Some Path Name'

路径的格式为带有未转义空格的文件夹名称"

Path is of the form 'Folder Name with un-escaped spaces'

我在这里做错了什么?

更新:我尝试在不创建目录的情况下运行代码

Update: I tried running the code without creating the directory

path=chap_name
print "Path : "+chap_path                       #For debugging purposes
temp_file=open(img_alt+'.jpg','w')
temp_file.write(buff)
temp_file.close()
print " ... Done"

仍然出现错误.更糊涂了.

Still get an error. Confused further.

更新2:问题似乎是img_alt，它在某些情况下包含'/'，这导致了问题.

Update 2:The Problem seems to be the img_alt, it contains a '/' in some cases, which makes is causing the trouble.

所以我需要处理'/'.无论如何要转义/"还是删除是唯一的选择?

So I need to handle the '/'. Is there anyway to escape the '/' or is deletion the only option?

推荐答案

import os

path = chap_name

if not os.path.exists(path):
    os.makedirs(path)

filename = img_alt + '.jpg'
with open(os.path.join(path, filename), 'wb') as temp_file:
    temp_file.write(buff)

关键是使用os.makedirs 代替os.mkdir.它是递归的，即它生成所有中间目录.见 http://docs.python.org/library/os.html

Key point is to use os.makedirs in place of os.mkdir. It is recursive, i.e. it generates all intermediate directories. See http://docs.python.org/library/os.html

在存储二进制 (jpeg) 数据时以二进制模式打开文件.

Open the file in binary mode as you are storing binary (jpeg) data.

响应编辑 2，如果 img_alt 有时包含/":

In response to Edit 2, if img_alt sometimes has '/' in it:

img_alt = os.path.basename(img_alt)

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