Python vs Ruby
Niklas Frykholm
r2d2 at mao.acc.umu.se
Mon Jan 29 04:19:09 EST 2001
>> # Ruby is often faster than Python.
>> That I would not believe without proof.
>Some time ago I tested Ruby vs Python:
>I made a program that calculates a fibonacci numbers.
>Python was as double as fast (Win95). Maybe that is because
>in Ruby a number is a class, in Python not.
My experience is similar. I recently implemented a program in both languages
using the same algorithms. The Python program ran in 4s, while the Ruby
program took 10s. It was a mathematical program so it was quite heavy on
number-crunching and function calls.
RUBY'S WINNING POINTS (IMHO)
- Nicer class structure. Everything can be subclassed. You do not have
to worry about whether something is a function or a method.
- Iterators beat list comprehension.
- Singleton classes are nice.
- No "magic names" for operators (__add__). No "magic naming conventions"
for private methods.
- "#{k+1}" beats "%i" % (k+1)
PYTHON'S WINNING POINTS (IMHO)
- Python's print is more pragmatic.
- Less Perl pollution -- no magic variables.
- Parser does not choke on programs with unusual spacing. The error
messages are usually better.
- Excellent documentation (you don't have to learn Japanese).
- Batteries included -- much better standard libraries.
AND I WISH THEY WOULD BOTH STOP DOING
- Automatic promotion of integers to floats...
I'll probably keep using both languages.
// Niklas
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