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Re: Why Python is slow

From "Chris M. Thomasson" <invalid@invalid.invalid>
Newsgroups comp.lang.c
Subject Re: Why Python is slow
Date 2017-01-24 19:26 -0800
Organization n/a
Message-ID <o695pc$efu$1@dont-email.me> (permalink)
References <9048e105-65e6-4e8c-a42f-b37e1d327246@googlegroups.com> <o68ts6$ru2$1@dont-email.me>

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On 1/24/2017 5:11 PM, Chris M. Thomasson wrote:
> On 1/24/2017 10:22 AM, thunderbirdmember@gmail.com wrote:
>>   Everyone saying that. And my neighbour is all upset
>> about something getting out of the house and complaining.
>> He doesn't like his car because he stuns it every time
>> he gets in or out. He don't realise that he stuns his mind too.
>> Obviously he wants a new car. But he is stuck here being a student.
>>
>>   Python is easy to write but is slow executing things.
>> So how much slower Python is compared to C. Experiment
>> was done on a nested loop of the same features in both
>> languages with same number of iterations and same logic:
>>
>> loop.py    0.219s
>> loop.pyc  0.314s
>> loop.c     0.088s
>>
>>   For some reason pre-compiled python object ran slower
>> than interpreted script.
>>
>
> Python is slow? Na. Its really slow, check this encryption technique out:
>
> http://pastebin.com/raw/QarNLfn3
>
> the code can be run online here:
>
> https://repl.it/languages/python3
>
> Here is output I get:
> _____________________________
> Chris M. Thomasson 8/20/2016
> Reverse Iteration Fractal Cipher (RIFC)
> Pre-Alpha Version: 0.0.0
> In-Memory Byte Level Version
> File based version is on its way
> =======================================================
>
>
>
> rifc:(fskey:(z:(-0.74543+0.11301j), c:[(0.677+0.2j), (-0.21-0.751j),
> (-0.0505+0.64j)], p:[4, 3, 5], r_n:2, n_n:3, hmack:hmac_skey_123))
>
>
> original_plaintext, length: 80
> ______________________________________________
> AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
>
> ______________________________________________
>
>
> ciphertext, length 42

Length 42 here means 42 complex numbers in the ciphertext, NOT 42 bytes. 
There is also HMAC key.


> ______________________________________________
> (649570f4addd71f8465a1aae6bc069ad)
> (-0.11375803457697138-1.0685502316737907j)
> (-0.1271064825318161+0.8348680631162264j)
> (-0.9465802124429011-0.021669884533826154j)
> (-0.7683793642809116+0.6958660388088035j)
> (0.5937917954594152-0.6008683998579958j)
[....]

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Why Python is slow thunderbirdmember@gmail.com - 2017-01-24 10:22 -0800
  Re: Why Python is slow Richard Heathfield <rjh@cpax.org.uk> - 2017-01-24 18:33 +0000
  Re: Why Python is slow Richard Heathfield <rjh@cpax.org.uk> - 2017-01-24 20:14 +0000
    Re: Why Python is slow luser droog <luser.droog@gmail.com> - 2017-01-26 10:13 -0800
    Re: Why Python is slow Tim Rentsch <txr@alumni.caltech.edu> - 2017-01-30 05:50 -0800
  Re: Why Python is slow bart4858@gmail.com - 2017-01-24 13:21 -0800
  Re: Why Python is slow BartC <bc@freeuk.com> - 2017-01-24 22:23 +0000
  Re: Why Python is slow "Chris M. Thomasson" <invalid@invalid.invalid> - 2017-01-24 17:11 -0800
    Re: Why Python is slow "Chris M. Thomasson" <invalid@invalid.invalid> - 2017-01-24 19:26 -0800
    Re: Why Python is slow "Chris M. Thomasson" <invalid@invalid.invalid> - 2017-01-25 12:50 -0800
      Re: Why Python is slow BartC <bc@freeuk.com> - 2017-01-25 21:52 +0000
        Re: Why Python is slow "Chris M. Thomasson" <invalid@invalid.invalid> - 2017-01-25 14:30 -0800
          Re: Why Python is slow BartC <bc@freeuk.com> - 2017-01-25 22:59 +0000
            Re: Why Python is slow "Chris M. Thomasson" <invalid@invalid.invalid> - 2017-01-27 13:20 -0800
      Re: Why Python is slow DFS <nospam@dfs.com> - 2017-01-25 19:22 -0500
        Re: Why Python is slow "Chris M. Thomasson" <invalid@invalid.invalid> - 2017-01-26 13:40 -0800
  Re: Why Python is slow David Brown <david.brown@hesbynett.no> - 2017-01-25 10:29 +0100
    Re: Why Python is slow gazelle@shell.xmission.com (Kenny McCormack) - 2017-01-25 10:38 +0000
    Re: Why Python is slow Malcolm McLean <malcolm.mclean5@btinternet.com> - 2017-01-26 06:44 -0800
      Re: Why Python is slow Richard Heathfield <rjh@cpax.org.uk> - 2017-01-26 15:00 +0000
        Re: Why Python is slow Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-01-26 17:23 +0000
          Re: Why Python is slow supercat@casperkitty.com - 2017-01-26 09:42 -0800
            Re: Why Python is slow Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-01-26 18:24 +0000
      Re: Why Python is slow David Brown <david.brown@hesbynett.no> - 2017-01-26 16:14 +0100
        Re: Why Python is slow Malcolm McLean <malcolm.mclean5@btinternet.com> - 2017-01-26 12:49 -0800
          Re: Why Python is slow Robert Wessel <robertwessel2@yahoo.com> - 2017-01-26 15:11 -0600
          Re: Why Python is slow David Brown <david.brown@hesbynett.no> - 2017-01-26 23:56 +0100
        Re: Why Python is slow Keith Thompson <kst-u@mib.org> - 2017-01-26 15:20 -0800
          Re: Why Python is slow David Brown <david.brown@hesbynett.no> - 2017-01-27 09:31 +0100
      Re: Why Python is slow fir <profesor.fir@gmail.com> - 2017-01-27 07:24 -0800
        Re: Why Python is slow fir <profesor.fir@gmail.com> - 2017-01-27 07:57 -0800
          Re: Why Python is slow fir <profesor.fir@gmail.com> - 2017-01-27 08:46 -0800
        Re: Why Python is slow supercat@casperkitty.com - 2017-01-27 08:06 -0800
          Re: Why Python is slow fir <profesor.fir@gmail.com> - 2017-01-27 08:39 -0800
            Re: Why Python is slow fir <profesor.fir@gmail.com> - 2017-01-27 13:29 -0800
  Re: 3**3**3**3 Noob <root@127.0.0.1> - 2017-01-27 14:33 +0100

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