[JOM]

Just run out of energy drink, so got to get some sleep. Stuck in problem, which should be easy, but haven't been able to solve. Can anyone help, basic non-s60 python stuff:

I have numbers, which I re-calculate occasionally. I want to present them in a readable, visually nice, way:

- All numbers are positive, more than or equal to zero
- All numbers are presented as text strings on-screen
- Full integers as integers only e.g. "100"
- Numbers less than zero with one leading zero e.g. "0.123"
- Max five decimals e.g. "3.33333"
- As few decimals as possible e.g. "3.45" instead of 3.45000
- Don't care whether 6.666 would be rounded as 6.66 or 6.67. Irrelevant.

How to do this? The number is always (for the moment) result of multiplication of two float numbers. The output format is controlled by sprintf format, which I thought I knew well enough, but obviously not this night... also reference book is archived in unknown location.

%0.5f would limit decimals to 5, but it's ALWAYS 5. Don't want any zeros at the end, how to get rid of those? Even this would be big help!

Btw this has to be as fast as possible, of course It's python and already running way too slow, about 5 secs an update. Furthermore 1.9.2 seems to be even slower

Recharging batteries,

--jouni

[aaaaapo]

Originally Posted by JOM

%0.5f would limit decimals to 5, but it's ALWAYS 5. Don't want any zeros at the end, how to get rid of those?

>>> (u"%.5f" % 3.45000).rstrip("0")
u'3.45'

You probably still have to do some post-processing:

• 0.00000 would be "0." so you may want to check zero separately
• numbers bigger than 1000 are formatted with thousand separator, so in Finnish "locale" I get this result (without any way to change formatting):
  

  >>> print "%.5f" % 12345.678
  12 345.67800

  In some other locale you may get even 12.345.67800.

[JOM]

Originally Posted by aaaaapo

>>> (u"%.5f" % 3.45000).rstrip("0")
u'3.45'

Thanx, this helped to solve the problem! I desided to keep the thousands separator on-screen as decorator and get the number for calculations elsewhere. Sample code below, just in case anyone needs it later:

        s = "%.5f" % float(g_currex[key][0])
        s = s.rstrip("0")
        if s[0] == '.':
            s = "0" + s
        if s[-1] == '.':
            s = s[:-1]

Originally Posted by aaaaapo

numbers bigger than 1000 are formatted with thousand separator, so in Finnish "locale" I get this result (without any way to change formatting):

>>> print "%.5f" % 12345.678
12 345.67800

In some other locale you may get even 12.345.67800.[/list]

Seen both, major problem.. This could mean that my app will not work in some locales at all Really would need some access or control to user's locate settings!

Thanx,

--jouni