Python implements the function of merging two files
This article mainly introduces the function of merging two files in Python in detail. It is a simple file merging program that has certain reference value. Interested friends can refer to it.
This article will It will analyze a file merging program and point out the issues that need to be paid attention to during the file merging process.
The following is an example of the files that need to be merged:
"""
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 = '\t'.join([file1_name[i],file1_tel[i],file2_email[j]])
s += '\n'
else:
s = '\t'.join([file1_name[i],file1_tel[i],str("----")])
s += '\n'
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 = '\t'.join([file2_name[i],str('----'),file2_email[i]])
s += '\n'
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()
Key points:
Encoding and decodingList merging and dismantling
Two pythons implement switching function
Python method to implement management site
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