Append CSVs without column names
Question: I have a list of CSVs , but they don't have column names. With my code in
Python 2.7 it appends but the first row in each CSV is recognized as the
column names. How can I append the CSVs without column names. For example:

    
    
    1 2 3
    a b 3
    
    2 4 1
    a e r
    
    Append:
    1 2 3
    a b 3
    2 4 1
    a e r
    

The code is the following:

    
    
    import os
    import pandas as pd
    
    targetdir = r'E:/tals/ICF/Base Admision San Marcos 2015-1'
    
    filelist = os.listdir(targetdir) 
    
    big_df=pd.DataFrame()
    
    for filename in filelist:
        big_df = big_df.append(pd.read_csv(os.path.join(targetdir, filename)),ignore_index=True)
    


Answer: Set [`header=None`](http://pandas.pydata.org/pandas-docs/stable/io.html#io-
read-csv-table):

    
    
    big_df.append(pd.read_csv(file, header=None), ignore_index=True)
    

