Welcome folks today in this post we will be comparing two text files line by line using difflib library in python. All the full source code of the application is shown below.
Get Started
In order to get started you need to install the following library using the pip command as shown below
pip install difflib
After installing this library you need to create an app.py file and copy paste the following code
Method 1: Using unified_diff()
app.py
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# Importing difflib import difflib with open('file1.txt') as file_1: file_1_text = file_1.readlines() with open('file2.txt') as file_2: file_2_text = file_2.readlines() # Find and print the diff: for line in difflib.unified_diff( file_1_text, file_2_text, fromfile='file1.txt', tofile='file2.txt', lineterm=''): print(line) |
Now just create two text files as shown below and then we will compare it line by line
file1.txt
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this is the first file in text1 using python |
file2.txt
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this is the second file in text2 using python |
Now if we execute the python script by typing the below command
python app.py
