title: Python vaex how to create dataframe from a CSV file?
body: <p>Why do I only get the last column</p>
  
  <pre><code>if __name__ == '__main__':
  # win远程linux运行
  import vaex,pandas as pd
  df_pd = pd.read_csv('./a.csv')  # contains 4 columns
  print(df_pd)
  print(list(df_pd.columns))
  df = vaex.from_pandas(df_pd)   # only last column   # why???
  print(df)
  </code></pre>
  
  <p>Why do I only get the last column</p>