MRAB wrote:
In what way is it counterintuitive? In 'pythonic' the conditions are
simpler, less work is being done, therefore it's faster.
But the pythonic condition is more general: nonevar or zerovar can be
'', 0, or None. So I thought it was more work for interpreter to compare
those, while I thought that "is not None" is translated to one, more
low-level and faster action. Apparently not.
As Rob pointed out (thanks):
11 31 LOAD_FAST 0 (nonevar)
34 JUMP_IF_FALSE 4 (to 41)
I'm no good at py compiler or implementation internals and so I have no
idea what bytecode "JUMP_IF_FALSE" is actually doing.
Regards,
mk
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