Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/usr/lib/python2.7/py_compile.py", line 117, in compile
    raise py_exc
py_compile.PyCompileError:   File "/in/foo.py", line 5
    if (month == 1) or (month == 3) or (month == 5) or (month == 7) or (month  == 8) or (month == 10) or (month = 12):
                                                                                                                ^
SyntaxError: invalid syntax