csv 파일 합치기

import pandas as pd
import numpy as np
import glob
import sys



all_data = pd.DataFrame()
for f in glob.glob('C:\\Users\\홍기대\\Desktop\\실내데이터2\\*.csv'):
    df = pd.read_csv(f)
    all_data = all_data.append(df, ignore_index=True)

print(all_data.shape)

print(all_data.head())

all_data.to_csv('C:\\Users\\홍기대\\Desktop\\실내데이터2\\통합.csv', header=False, index=True)