title: Having issue while reading '≤' and '≥' signs from file
body: <p>I am having an issue in reading less than equal to (≤) and greater than equal to (≥) from a text files in python.</p>
  <p>Python version: 3.8</p>
  <p>opening file:</p>
  <pre><code>read_file = open(input_file,'r',encoding='ISO-8859-1')
  lines = list(read_file.readlines())
  </code></pre>
  <p>I have also used encoding 'utf-8' but it shows an error as the file contains some special characters that utf-8 cant interpret.</p>
  <p>Actually, signs are read successfully but it is interpreted as '¡Ã' and '¡Â' also sometimes after modifying the file and also in the debugger it gets interpreted something like 'ï¿½ï¿½' which is real trouble.</p>