python使用正斜杠与反斜杠存储路径名 [英] python storing path names with forward vs backward slash
问题描述
我有一个程序,该程序os.walk
一个目录及其子目录来过滤pdf文件,并分离出它们的名称和相应的路径名.我遇到的问题是它将扫描最顶层的目录并打印适当的文件名,例如G:/Books/Title.Pdf
,但第二次它扫描一个子文件夹,例如G:/Books/Sub Folder/Title.pdf
,它将打印以下内容
I have a procedure that os.walk
s a directory and its subdirectories to filter pdf files, separating out their names and corresponding pathnames. The issue I am having is that it will scan the topmost directory and print the appropriate filename e.g. G:/Books/Title.Pdf
but the second it scans a subfolder e.g G:/Books/Sub Folder/Title.pdf
it will print the following
G:/Books/Sub Folder\\Title.Pdf
(显然是无效的路径名).还会将\\添加到子文件夹中的所有子文件夹中.
(which is obviously an invalid path name). It will also add \\ to any subfolders within subfolders.
以下是过程:
def dicitonary_list():
indexlist=[] #holds all files in the given directory including subfolders
pdf_filenames=[] #holds list of all pdf filenames in indexlist
pdf_dir_list = [] #holds path names to indvidual pdf files
for root, dirs,files in os.walk('G:/Books/'):
for name in files:
indexlist.append(root + name)
if ".pdf" in name[-5:]:
pdf_filenames.append(name)
for files in indexlist:
if ".pdf" in files[-5:]:
pdf_dir_list.append(files)
dictionary=dict(zip(pdf_filenames, pdf_dir_list)) #maps the pdf names to their directory address
我知道我很想念一些简单的事情,但出于爱或金钱,我看不出它是什么.一双新鲜的眼睛会很有帮助!
I know it's something simple that I am missing but for love nor money can i see what it is. A fresh pair of eyes would help greatly!
推荐答案
在Windows上的Python中,正斜杠和反斜杠都是完全有效的路径分隔符.
Forward slashes and backward slashes are both perfectly valid path separators in Python on Windows.
>>> import os
>>> os.getcwd()
'j:\\RpmV'
>>> os.path.exists('j:\\Rpmv\\make.py')
True
>>> os.path.exists('j:/rpmv/make.py')
True
>>> os.path.isfile('j:\\Rpmv/make.py')
True
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