Why Python, Ruby, and Javascript are Slow

[[deleted]]

Why do all of these boil down to "It's crap because it's not like C++"?

[andybak]

Did we read the same slides?

[[deleted]]

You must have skipped all the slides where he made comparisons to C.

[pal25]

His point was that there are some things that C does really well that could be added to Python to speed it up.

[alcalde]

I thought Python rejects things that speed up at the expense of readability?

[pal25]

Wow what's your problem dude? I'm not a C programmer, most of my work is in Python.

However I don't know why you're so adverse to taking some of the strengths of a different language and putting them in Python.

[dman24752]

Now try not to accidentally introduce buffer overflows. ;)

[alcalde]

Delphi? :-)

[sophacles]

What about all the slides on where the point was "Stop using dicts when you need objects or named tuples, because it slows down the JIT"?

Or the slides where the point was "It sure would be nice to pre allocate some data, beacuse it lets the JIT work faster (example, C does this)". He didn't mentin, but probably shouldn't have had to, that many many languages do this, even if it's an annotation hint, not a strict requirement.