在 Python 中获取没有扩展名的文件名
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Get Filename Without Extension in Python
提问by user469652
If I have a filename like one of these:
如果我有这样的文件名之一:
1.1.1.1.1.jpg
1.1.jpg
1.jpg
How could I get only the filename, without the extension? Would a regex be appropriate?
我怎么能只得到文件名而没有扩展名?正则表达式是否合适?
采纳答案by Marcelo Cantos
In most cases, you shouldn't use a regex for that.
在大多数情况下,您不应该为此使用正则表达式。
os.path.splitext(filename)[0]
This will also handle a filename like .bashrccorrectly by keeping the whole name.
这也将.bashrc通过保留全名来正确处理文件名。
回答by Lennart Regebro
>>> import os
>>> os.path.splitext("1.1.1.1.1.jpg")
('1.1.1.1.1', '.jpg')
回答by Triptych
No need for regex. os.path.splitextis your friend:
不需要正则表达式。os.path.splitext是你的朋友:
os.path.splitext('1.1.1.jpg')
>>> ('1.1.1', '.jpg')
回答by Alan Moore
If I had to do this with a regex, I'd do it like this:
如果我必须用正则表达式来做这件事,我会这样做:
s = re.sub(r'\.jpg$', '', s)

