title: How to validate if all values are quoted in a .csv file
body: <p>I have thousands of .csv files and I need to check if all of them has their values QUOTED.</p>
  
  <p>I tried getting them all into a list of dataframes and tried my luck with a very bad code. I need help with this !</p>
  
  <pre class="lang-py prettyprint-override"><code>def csv_list(folder):
      path = r'C:\\'+folder+'' # use your path
      all_files = glob.glob(path + "/*.csv")
      li = []
      for filename in all_files:
          df = pd.read_csv(filename, index_col=None, header=0)
          li.append(df)
      return li
  
  def check_doublequotes(csvfile):
      if (csvfile.QUOTE_ALL == True):
          print("csv are double quoted")
  </code></pre>
  
  <p>I got the following error</p>
  
  <p><code>AttributeError: 'DataFrame' object has no attribute 'QUOTE_ALL'</code></p>