title: When reading in a txt matrix, how can i skip first column
body: <p>I have a file that looks like this:</p>
  
  <pre><code>    1   2   3   4   5   6   7
  1   0   1   1   1   1   1   1
  2   0   0   1   1   1   1   1
  3   0   0   0   1   1   1   1
  4   0   0   0   0   1   1   1
  5   0   0   0   0   0   1   1
  6   0   0   0   0   0   0   1
  7   0   0   0   0   0   0   0
  </code></pre>
  
  <p>I want to read in only the 1 and 0 and ignore the top header row and the row name (the first column). </p>
  
  <p>So far I have the header line all set, but how can I skip the skip column. My code so far</p>
  
  <pre><code>with open('file') as f:
      next(f) #skips header row
      content = [x.strip('\n') for x in f.readlines()]
  </code></pre>
  
  <p>I'm trying to use only base python and no libraries. </p>