os.listdir()不会打印出所有文件 [英] os.listdir() not printing out all files
问题描述
我有一堆文件和几个文件夹.我正在尝试将zip追加到列表中,以便可以在代码的其他部分中提取这些文件.它永远找不到拉链.
I've got a bunch of files and a few folders. I'm trying to append the zips to a list so I can extract those files in other part of the code. It never finds the zips.
for file in os.listdir(path):
print(file)
if file.split(".")[1] == 'zip':
reg_zips.append(file)
该路径很好,否则将不会打印出任何内容.每次都会拾取相同的文件,但不会拾取其他文件.它会拾取目录中大约1/5的文件.
The path is fine or it wouldn't print out anything. It picks up the same files each time but will not pick up any others. It picks up about 1/5th of the files in the directory.
完全丧失.我通过在代码中放置time.sleep(3)来确保文件可用性的某些怪异的竞争条件不是问题.没解决.
At a complete loss. I've made sure that some weird race condition with the file availability isn't the problem by putting a time.sleep(3) in the code. Didn't solve it.
推荐答案
文件中可能包含多个句点.尝试使用 str.endswith
:
It's possible your files have more than one period in them. Try using str.endswith
:
reg_zips = []
for file in os.listdir(path):
if file.endswith('zip'):
reg_zips.append(file)
另一个好主意(感谢Jean-FrançoisFabre!)是使用 os.path.splitext
,可以很好地处理扩展名:
Another good idea (thanks, Jean-François Fabre!) is to use os.path.splitext
, which handles the extension quite nicely:
if os.path.splitext(file)[-1] == '.zip':
...
一个更好的解决方案,我建议使用 glob.glob
函数:
Am even better solution, I recommend with the glob.glob
function:
import glob
reg_zips = glob.glob('*.zip')
这篇关于os.listdir()不会打印出所有文件的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!