title: Pandas read_csv to adding some very small values to the dataframe
body: <p>When i use pandas read_csv, pandas add some little value to the dataframe, it went from -0.079257 to -0.07925700000000001, why is this happening and how can I fix this? It also only happen to some specific values, while others seems fine.</p>
  
  <p>I've tried using float_precision but seems doesn't do anything, I'm new to pandas</p>
  
  <pre><code>df = pd.read_csv('filepath') 
  print(df.iat[0,0])
  </code></pre>
  
  <p><a href="http://archive.ics.uci.edu/ml/machine-learning-databases/00459/avila.zip" rel="nofollow noreferrer">Dataset Link</a></p>
  
  <p>I changed the dataset file type from txt to csv manually using notepad. </p>
  
  <p><a href="https://i.stack.imgur.com/aVUGG.png" rel="nofollow noreferrer">Dataset Image</a></p>