python实现两个文件合并功能

"""
Created on Fri Aug 4 12:59:36 2017

@author: 13323
"""
# This program can combine two or more files into one file.
def main():
 #firstly open the files
 data1 = open("test_3.txt","rb")
 data2 = open("test_4.txt","rb")

 # read the data in file into list
 data1.readline() #only read one line, skip the first line
 data2.readline() #only read one line, skip the first line
 file1 = data1.readlines() #read all variable into list file1 
 file2 = data2.readlines() #read all variable into list file2
 #print(file1)

 #define particular list to store variable
 file1_name = []
 file1_tel = []
 file2_name = []
 file2_email = []
 #file3 = []

 #split file1 into two part
 for line in file1:
 element = line.split() #line.split(); devide by ' '
 file1_name.append(str(element[0].decode('gbk')))
 file1_tel.append(str(element[1].decode('gbk')))

 #split file2 into two part
 for line in file2:
 element = line.split()
 file2_name.append(str(element[0].decode('gbk')))
 file2_email.append(str(element[1].decode('gbk')))

 # pick up the name in the file1 same as the name in the file2 and combine 
 file3 = []
 for i in range(len(file1_name)):
 s = ''
 if file1_name[i] in file2_name:
 j = file2_name.index(file1_name[i])
 s = '	'.join([file1_name[i],file1_tel[i],file2_email[j]])
 s += '
'
 else:
 s = '	'.join([file1_name[i],file1_tel[i],str("----")])
 s += '
'
 file3.append(s)

 #pick up the name in the file1 doesn't same as the name in the file2 
 for i in range(len(file2_name)):
 s = ''
 if file2_name[i] not in file1_name:
 s = '	'.join([file2_name[i],str('----'),file2_email[i]])
 s += '
'
 file3.append(s)

 #write the data into file3 
 data3 = open("test_5.txt","w")
 data3.writelines(file3)

 #close the file
 data1.close()
 data2.close()
 data3.close()

main()