title: Import multiple CSV files into pandas and concatenate into one DataFrame
body: <p>I would like to read several CSV files from a directory into pandas and concatenate them into one big DataFrame. I have not been able to figure it out though. Here is what I have so far:</p>
  <pre><code>import glob
  import pandas as pd
  
  # Get data file names
  path = r'C:\DRO\DCL_rawdata_files'
  filenames = glob.glob(path + &quot;/*.csv&quot;)
  
  dfs = []
  for filename in filenames:
      dfs.append(pd.read_csv(filename))
  
  # Concatenate all data into one DataFrame
  big_frame = pd.concat(dfs, ignore_index=True)
  </code></pre>
  <p>I guess I need some help within the <em>for</em> loop?</p>