semi-concatenated strings

[Skip Montanaro]

    '%s' 'x' % (5)

vs.

    '%s' + 'x' % (5)

    Grant> So it looks like the implicit "+" operator has a higher
    Grant> precedence than the explicit "+" operator.  

Minor semantic point here.  Since the string concatenation is performed by
the compiler, not at runtime, it's probably not correct to call the first
form an implicit "+" operator.  Nothing happens at runtime to squash the two
strings together.  If you inspect the code object you can see this:

    >>> def f():
    ...   '%s' 'x' % (5,)
    ... 
    >>> f.func_code.co_consts
    (None, '%sx', 5)

Skip