PYTHON

Appending pandas dataframes generated in a for loop

appended_data = []
for infile in glob.glob("*.xlsx"):
    data = pandas.read_excel(infile)
    # store DataFrame in list
    appended_data.append(data)
# see pd.concat documentation for more info
appended_data = pd.concat(appended_data)
# write DataFrame to an excel sheet 
appended_data.to_excel('appended.xlsx')

how to append panda columns using loop

import pandas as pd
import glob

f_list = glob.glob("C:Users*.xlsx")  
#list comprehension 
all_data = [pd.read_excel(f) for f in f_list]  

#same like loops solution
all_data = []            
for f in f_list:                       
    df = pd.read_excel(f)             
    all_data.append(df)
    
df = pd.concat(all_data, axis=1)