Python：十六进制解码德语文本并写入文件异常求助

Hey there! I know you’ve spent hours poking at this encoding/decoding issue, let’s get your Gerätedetektor showing up correctly once and for all.

The core thing to remember here: binascii.unhexlify() only converts your hex string into raw byte data—you still need to decode those bytes using the correct character encoding to get readable text, especially for German special characters like ä.

Common Encodings for German Characters & Implementation #

German special characters are usually encoded in one of two common formats; here’s how to test them with your hex string:

1. UTF-8 Encoding
   If your hex string includes C3A4 where ä should be (UTF-8’s 2-byte representation of ä), use this code:

   import binascii
   
   # Replace with your actual hex string
   hex_input = "476572C3A47465646574656B746F72"
   byte_data = binascii.unhexlify(hex_input)
   decoded_text = byte_data.decode("utf-8")
   
   # Write to file with consistent encoding
   with open("output.txt", "w", encoding="utf-8") as f:
       f.write(decoded_text)
   
   print(decoded_text)  # Should output Gerätedetektor
   

2. Latin-1 (ISO-8859-1) or Windows-1252 Encoding
   If your hex string uses E4 for ä (the single-byte representation in these encodings), try this:

   import binascii
   
   hex_input = "476572E47465646574656B746F72"
   byte_data = binascii.unhexlify(hex_input)
   decoded_text = byte_data.decode("latin-1")  # "cp1252" works interchangeably here
   
   with open("output.txt", "w", encoding="utf-8") as f:
       f.write(decoded_text)
   
   print(decoded_text)  # Correctly displays Gerätedetektor
   

Quick Troubleshooting Tip #

If you’re unsure which encoding your hex string uses:

• Isolate the hex characters that should correspond to ä
• Convert those bytes to a string using both encodings above and check which one produces the correct ä

内容的提问来源于stack exchange，提问作者Ginsor