title: Why I am getting error "Duplicate names are not allowed"?
body: <pre><code>import pandas as pd
  
  import matplotlib.pyplot as plt
  
  import numpy as np
  
  
  u_cols = ['user_id', 'age', 'sex', 'occupation', 'zip_code']
  users = pd.read_csv('ml-100k/u.user', sep='|', names=u_cols, encoding='latin-1')
  
  
  r_cols = ['user_id','movie_id','rating', 'unix_timestamp']
  ratings = pd.read_csv('ml-100k/u.data', sep="\t", names=r_cols, encoding='latin-1')
  </code></pre>