title: UnicodeDecodeError: 'utf-8' codec can't decode byte : but I don't know where in the code
body: <p>I am running a python code in spyder <strong>that doesn't print anything and that doesn't manage any strings</strong>. But I have of course comments in my code (in which I probably have accents somewhere).</p>
  
  <p>When I want to run the code, it tells me :</p>
  
  <blockquote>
    <p>UnicodeDecodeError: 'utf-8' codec can't decode byte 0xe9 in position 148: invalid continuation byte</p>
  </blockquote>
  
  <p>The problem I have is that I just don't know on which line it crashes, indeed the errors give me lines in anaconda python file, it doesn't tell me where my mistake is in my own code.</p>
  
  <p>What's more, in fact, the code worked perfeclty well. Then my pc crashed and I rebooted it and now I have this error, but nothing changed in my code between these.</p>
  
  <p>All the help about this topic always concern strings that have some strange characters but I insist on the fact that my code doesn't print anything and I don't manage any string (only matrix of numbers).</p>
  
  <p>The code is quite long and I struggle to identify precisely where it fails, I would like at first know if someone have a general idea about it (the main fact is that I don't work with any string in my code, the only special characters that could be here would be in the comments)</p>