Comment by pgcj_poster

7 years ago

> you can easily write programs that edit themselves

Hah! I can do that too:

    #!/usr/bin/env python3
    #
    # script.py
    # Copyright 2019 pgcj_poster
    
    print('Hello World')
    with open('script.py', 'w') as f:
        f.write(f.read().replace('Hello World', 'Goodbye World'))

Clearly Lisp is of no use in 2019.

1 comment

pgcj_poster

contravariant 7 years ago

You should use '__file__' for increased generality.

Note that you can also import a module and refer to its location on disk as 'module.__file__'. I may or may not have used this to modify a few core python modules in place.