python 批量合并CSV文件 & 读取文件夹中多个文件路径（GLOB模块）

# import the library
import glob

# list all the files in the folder
for directory in glob.glob('datasets/multi-directory/*'):
    print(directory)

# iterate through each of the files
for directory in glob.glob('datasets/multi-directory/*'):
    
    for files in glob.glob(directory + '/*'):
        print(files)

# list to store data frames
data_frame_list = []

# iterate through each folder
for directory in glob.glob('datasets/multi-directory/*'):
    
    # iterate through each file
    for files in glob.glob(directory + '/*'):
        # read and append the data frame
        data_frame_list.append(pd.read_csv(files))

# concatenate the dataframes
final_data = pd.concat(data_frame_list)