Obtain File size with os.path.getsize() in Python

问题:

I am new to python. I am trying to use os.path.getsize() to obtain the file size. However, if the file name is not in Englist, but in Chinese, Gemany, or French, etc, Python cannot recognize it and do not return the size of the file. Could you please help me with it? How can I let Python recognize the file's name and return the size of these kind of files?

For example: The file's name is:Показатели естественного и миграционного прироста до 2030г.doc

path="C:\xxxx\xxx\xxxx\Показатели естественного и миграционного прироста до 2030г.doc"

I'd like to use" os.path.getsize(path)

But it does not recognize the file name. Could you please kindly tell me what should I do?

Thank you very much!

回答1:

Use Unicode filenames and let Python encode the codepoints to the correct encoding for your system.

Alternatively, detect the filesystem encoding yourself, and ensure that your filenames are using that specific encoding when passing these to the os.path.getsize() function.

If you do not yet know what Unicode is, or how that relates to encodings, I urge you to read:

• The Absolute Minimum Every Software Developer Absolutely, Positively Must Know About Unicode and Character Sets (No Excuses!) by Joel Spolsky

• The Python Unicode HOWTO

• Pragmatic Unicode by Ned Batchelder

before you continue.

If you are specifying a literal string in your source code, then you need to make sure that you have specified the codec used to save your source, and to use a unicode literal:

# -*- coding: utf-8 -*-

path = u"C:\xxxx\xxx\xxxx\Показатели естественного и миграционного прироста до 2030г.doc"

specifies that you saved your source code in UTF-8 and that the path variable should hold a Unicode string (note the u'' string literal).

回答2:

You can solve your problem with this code:

import codecs

path="C:\xxxx\xxx\xxxx\Показатели естественного и миграционного прироста до 2030г.doc"

path=codecs.decode(path,'utf8') 
os.path.getsize(path)