Write a program diff.py that takes two file names from the command line. The fil

Question

Write a program diff.py that takes two file names from the command line. The file names may NOT have spaces in them! It then writes either files differ or files are the same.

Example: the user may run your program thus:

Method: open the files, and read their lines. Then compare their lists of lines.

CODE GIVEN:

'''
Takes two filenames from the command line, and determines
if the files have the same content.
'''

import sys

if len(sys.argv) != 3:
print('Usage: python diff.py <file1> <file2>')
sys.exit(1)

file_name1 = sys.argv[1]

# ... write the rest of your code here

Explanation / Answer

''' Takes two filenames from the command line, and determines if the files have the same content. ''' import sys print(sys.argv) if len(sys.argv) != 3: print('Usage: python diff.py ') sys.exit(1) file_name1 = sys.argv[1] file_name2 = sys.argv[2] same_files = True with open(file_name1, 'r') as f1, open(file_name2, 'r') as f2: lines1 = f1.readlines() lines2 = f2.readlines() print(lines1) print(lines2) if len(lines1) == len(lines2): for i in range(len(lines1)): if lines1[i] != lines2[i]: same_files = False break else: same_files = False if same_files: print('Files are same') else: print('Files are not same')

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