Take a directory of files and apply a function to those files.

csvs_to_dfs.py

def process_files(path, extention, func, *args, **kwargs):
    """
    Take a directory of files and apply a function to those files.
    
    The first parameter of the function (`func`) must be a file name. This is typically 
    the file to parse to df before apply some function
    """
    dfs = {}
    
    for fname in os.listdir(path):
#         print (os.path.splitext(fname)[-1])
        if os.path.splitext(fname)[-1] == extention:
            rs = func(os.path.join(path, fname), *args, **kwargs)
            dfs[fname] = rs
    return dfs