文件名中的一些字母（ü，ä）在上传到 Python 中的 FTP 后变成乱码

Question

I'm trying to upload image file to FTP server and filename has western European character.

file_name = 'müde_Mäuschen'

If I upload this file to FTP it changes letters. File name in FTP becomes müde_Mäuschen .

Notes:

1. If I upload file to FTP using FileZilla then name works perfectly so FTP server do support this european letters.
2. I'm on Windows 10, Python 3.9.0

Code:

from ftplib import FTP

ftp = FTP("Login Details")
path = r'D:\ftp_test'
file_name = 'müde_Mäuschen.jpg'

ftp.storbinary(f"STOR {file_name}", open(path+'\\'+file_name, "rb"))

Answer 1

You need to specify the filesystem encoding of the remote system:

ftp = FTP('Login Details', encoding='cp1252')

Otherwise filenames and directory names will be decoded with the default encoding of the local system.

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I don't know what encoding the destination system is using, but it looks like it's a Windows machine and cp1252 is a common encoding on Western European Windows machines.