[Tutor] script too slow

[Michael Janssen]

On Sun, 23 Feb 2003, Paul Tremblay wrote:

> In addition, I wonder if I should use lists in some way. For example, I
> could create one giant list.
>
> allowed = ['\par', '\pard', etc]

dictionary lookups are faster in python: use dictionaries for lookups and
lists for sorting. These ways both the datastructures are optimized.
Therefore it's realy amazing, what you are experiencing with your code :-(

Fred suggestion about a super dictionary seems valueable.

Have you already "profiled" your code?
# in script:
import profile
profile.run('<function to profile: func(arg)>', '<file to write to>')


# then in interpreter:
import pstats
p = pstats.Stats('<file written to>')

p.print_stats()

# nicer output
p.strip_dirs().sort_stats('time').print_stats()

This possibly gives you a hint what kind of operations takes the time.

Michael