Error UnicodeDecodeError: ‘utf-8’ Codec Can’t Decode Byte 0xff In Position 0: Invalid Start Byte

The error "UnicodeDecodeError: ‘utf-8’ codec can’t decode byte 0xff in position 0: invalid start byte" occurs when Python tries to interpret a byte sequence as a utf-8 encoded string but encounters an invalid byte.

This error typically occurs when you try to open or read a file that is not encoded in utf-8, or if you incorrectly specify the file encoding.

To resolve this error, you can try the following:

  1. Check the file encoding: Open the file in a text editor that supports various encodings (e.g., Notepad++) and confirm the actual encoding. If it’s not utf-8, you need to specify the correct encoding when reading the file.

  2. Specify the correct encoding: If the file uses a different encoding, you can specify it explicitly when opening the file. For example, if the file is encoded in Latin-1 (ISO-8859-1), you can use the following code snippet to open the file:

with open('file.txt', 'r', encoding='latin-1') as file:
    content =

Replace 'file.txt' with the path to your file.

  1. Ignore errors: If you don’t know the file encoding or want to ignore any decoding errors, you can use the 'ignore' error handling option. It will skip any problematic bytes during reading. Here’s an example:
with open('file.txt', 'r', encoding='utf-8', errors='ignore') as file:
    content =

Again, replace 'file.txt' with the correct file path.

Keep in mind that ignoring errors may result in data loss if the file contains important information encoded in the problematic bytes. So, double-check the actual encoding if possible.

About the Author Rex

I'm a passionate tech blogger with an insatiable love for programming! From my early days tinkering with code, I've delved into web dev, mobile apps, and AI. Sharing insights and tutorials with the world is my joy, connecting me to a global community of like-minded tech enthusiasts. Python holds a special place in my heart, but I embrace all challenges. Constantly learning, I attend tech conferences, contribute to open-source projects, and engage in code review sessions. My ultimate goal is to inspire the next generation of developers and contribute positively to the ever-evolving tech landscape. Let's code together!