Syntax error in example1.py

[mkatliar]

Run command:

examples$ python2 example1.py

Output:

  File "example1.py", line 76
    sys.exit(app.exec())
                    ^
SyntaxError: invalid syntax

Probably the error occurs because exec is a keyword in python: https://docs.python.org/2.7/reference/simple_stmts.html#exec

Python 2.7.13