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1#! /usr/bin/env python3
2
3# Copy one file's atime and mtime to another
4
5import sys
6import os
7from stat import ST_ATIME, ST_MTIME # Really constants 7 and 8
8
9def main():
10    if len(sys.argv) != 3:
11        sys.stderr.write('usage: copytime source destination\n')
12        sys.exit(2)
13    file1, file2 = sys.argv[1], sys.argv[2]
14    try:
15        stat1 = os.stat(file1)
16    except OSError:
17        sys.stderr.write(file1 + ': cannot stat\n')
18        sys.exit(1)
19    try:
20        os.utime(file2, (stat1[ST_ATIME], stat1[ST_MTIME]))
21    except OSError:
22        sys.stderr.write(file2 + ': cannot change time\n')
23        sys.exit(2)
24
25if __name__ == '__main__':
26    main()
27