Floating Number format problem

**ici** · Jun 12 '07, 07:25 AM

Re: Floating Number format problem

On Jun 12, 10:10 am, <kelvin....@gma il.comwrote:

How could I format the float number like this: (keep 2 digit
precision)
1.002 =1
1.12 =1.12
1.00 =1
1.567 =1.57
2324.012 =2324.01
>
I can not find any Formatting Operations is able to meet my
requirement.
Any suggestion will be appreciated.

>>print "%.02f" % (2324.012)

2324.01

>>>

404 Not Found

http://docs.python.org/tut/node9.html#SECTION009100000000000000000

**Guest** · Jun 12 '07, 08:55 AM

Re: Floating Number format problem

On 6 12 , 3 16 , ici <iltch...@gmail .comwrote:

On Jun 12, 10:10 am, <kelvin....@gma il.comwrote:
>
>
>

How could I format the float number like this: (keep 2 digit
precision)
1.002 =1
1.12 =1.12
1.00 =1
1.567 =1.57
2324.012 =2324.01

>

I can not find any Formatting Operations is able to meet my
requirement.
Any suggestion will be appreciated.

>print "%.02f" % (2324.012)

2324.01
>
http://docs.python.org/tut/node9.htm...00000000000000

thank you !
But in these case:

>>print '%.02f'%1.002

1.00

>>print '%.02f'%1.00

1.00

I just expect it to output "1" , but these way will output 1.00

**Gabriel Genellina** · Jun 12 '07, 09:35 AM

Re: Floating Number format problem

En Tue, 12 Jun 2007 05:46:25 -0300, <kelvin.you@gma il.comescribió:

On 6 12 , 3 16 , ici <iltch...@gmail .comwrote:

>On Jun 12, 10:10 am, <kelvin....@gma il.comwrote:
>>

How could I format the float number like this: (keep 2 digit
precision)
1.002 =1
1.12 =1.12
>>print "%.02f" % (2324.012)

>2324.01
>>

But in these case:
>

>>>print '%.02f'%1.002

1.00

>>>print '%.02f'%1.00

1.00
>
I just expect it to output "1" , but these way will output 1.00

def my_formatter_om mitting_trailin g_zeroes(value) :
result = '%.2f' % value
if result[-3:]=='.00': result = result[:-3]
return result

for f in [1.0, 1.002, 1.12, 1.567, 2324.012]:
print "%g -%s" % (f, my_formatter_om mitting_trailin g_zeroes(f))

--
Gabriel Genellina

**Gabriel Genellina** · Jun 12 '07, 09:45 AM

Re: Floating Number format problem

En Tue, 12 Jun 2007 05:46:25 -0300, <kelvin.you@gma il.comescribió:

On 6 12 , 3 16 , ici <iltch...@gmail .comwrote:

>On Jun 12, 10:10 am, <kelvin....@gma il.comwrote:
>>

How could I format the float number like this: (keep 2 digit
precision)
1.002 =1
1.12 =1.12
>>print "%.02f" % (2324.012)

>2324.01
>>

But in these case:
>

>>>print '%.02f'%1.002

1.00

>>>print '%.02f'%1.00

1.00
>
I just expect it to output "1" , but these way will output 1.00

def my_formatter_om mitting_trailin g_zeroes(value) :
result = '%.2f' % value
if result[-3:]=='.00': result = result[:-3]
return result

for f in [1.0, 1.002, 1.12, 1.567, 2324.012]:
print "%g -%s" % (f, my_formatter_om mitting_trailin g_zeroes(f))

--
Gabriel Genellina

**Marc Christiansen** · Jun 12 '07, 10:05 AM

Re: Floating Number format problem

Gabriel Genellina <gagsl-py2@yahoo.com.a rwrote:

En Tue, 12 Jun 2007 05:46:25 -0300, <kelvin.you@gma il.comescribiÃ³ :
>

>On 6 12 , 3 16 , ici <iltch...@gmail .comwrote:

>>On Jun 12, 10:10 am, <kelvin....@gma il.comwrote:
>>>
>How could I format the float number like this: (keep 2 digit
>precision)
>1.002 =1
>1.12 =1.12
>>>print "%.02f" % (2324.012)
>>2324.01
>>>

>But in these case:
>>

>>>>print '%.02f'%1.002

>1.00

>>>>print '%.02f'%1.00

>1.00
>>
>I just expect it to output "1" , but these way will output 1.00

>
def my_formatter_om mitting_trailin g_zeroes(value) :
result = '%.2f' % value
if result[-3:]=='.00': result = result[:-3]
return result
>
for f in [1.0, 1.002, 1.12, 1.567, 2324.012]:
print "%g -%s" % (f, my_formatter_om mitting_trailin g_zeroes(f))

Or:

def my_other_format ter_ommitting_t railing_zeroes( value):
result = '%.2f' % value
return result.rstrip(' 0.')

my_other_format ter_ommitting_t railing_zeroes( 1.102) == "1.1"

**Peter Otten** · Jun 12 '07, 10:45 AM

Re: Floating Number format problem

Marc Christiansen wrote:

Gabriel Genellina <gagsl-py2@yahoo.com.a rwrote:

>En Tue, 12 Jun 2007 05:46:25 -0300, <kelvin.you@gma il.comescribió:
>>

>>On 6 12 , 3 16 , ici <iltch...@gmail .comwrote:
>>>On Jun 12, 10:10 am, <kelvin....@gma il.comwrote:
>>>>
>>How could I format the float number like this: (keep 2 digit
>>precision)
>>1.002 =1
>>1.12 =1.12
>>>>print "%.02f" % (2324.012)
>>>2324.01

Or:
>
def my_other_format ter_ommitting_t railing_zeroes( value):
result = '%.2f' % value
return result.rstrip(' 0.')

Make that result.rstrip(" 0").rstrip(".") , or it may fail:

>>("%.2f" % 100.0).rstrip(" .0")

'1' # wrong

>>("%.2f" % 100.0).rstrip(" 0").rstrip(" .")

'100'

Peter

**John Machin** · Jun 12 '07, 10:45 AM

Re: Floating Number format problem

On Jun 12, 8:04 pm, Marc Christiansen <use...@solar-empire.dewrote:

Gabriel Genellina <gagsl-...@yahoo.com.a rwrote:

En Tue, 12 Jun 2007 05:46:25 -0300, <kelvin....@gma il.comescribió:

>

On 6 12 , 3 16 , ici <iltch...@gmail .comwrote:
>On Jun 12, 10:10 am, <kelvin....@gma il.comwrote:

>

How could I format the float number like this: (keep 2 digit
precision)
1.002 =1
1.12 =1.12
>>print "%.02f" % (2324.012)
>2324.01

>

But in these case:

>

>>>print '%.02f'%1.002
1.00
>>>print '%.02f'%1.00
1.00

>

I just expect it to output "1" , but these way will output 1.00

>

def my_formatter_om mitting_trailin g_zeroes(value) :
result = '%.2f' % value
if result[-3:]=='.00': result = result[:-3]
return result

>

for f in [1.0, 1.002, 1.12, 1.567, 2324.012]:
print "%g -%s" % (f, my_formatter_om mitting_trailin g_zeroes(f))

>
Or:
>
def my_other_format ter_ommitting_t railing_zeroes( value):
result = '%.2f' % value
return result.rstrip(' 0.')
>
my_other_format ter_ommitting_t railing_zeroes( 1.102) == "1.1"

Marc, thanks for coming, but:

>>my_other_form atter_ommitting _trailing_zeroe s(100.00)

'1'

>>>

What does the OP want to happen with 1.2? I suspect he wants '1.2',
not '1.20'

Looks like a variation of Marc's idea will do the business:

>>values = [100.0, 1.0, 1.2, 1.002, 1.12, 1.567, 2324.012]
>>[('%.02f' % x).rstrip('0'). rstrip('.') for x in values]

['100', '1', '1.2', '1', '1.12', '1.57', '2324.01']

Howzat?

**Marc Christiansen** · Jun 12 '07, 11:15 AM

Re: Floating Number format problem

Peter Otten <__peter__@web. dewrote:

Marc Christiansen wrote:
>

>Gabriel Genellina <gagsl-py2@yahoo.com.a rwrote:

>>En Tue, 12 Jun 2007 05:46:25 -0300, <kelvin.you@gma il.comescribiÃ³ :
>>>
>>>On 6 12 , 3 16 , ici <iltch...@gmail .comwrote:
>>>>On Jun 12, 10:10 am, <kelvin....@gma il.comwrote:
>>>>>
>>>How could I format the float number like this: (keep 2 digit
>>>precision)
>>>1.002 =1
>>>1.12 =1.12
>>>>>print "%.02f" % (2324.012)
>>>>2324.01

>Or:
>>
>def my_other_format ter_ommitting_t railing_zeroes( value):
> result = '%.2f' % value
> return result.rstrip(' 0.')

>
Make that result.rstrip(" 0").rstrip(".") , or it may fail:
>

>>>("%.2f" % 100.0).rstrip(" .0")

'1' # wrong

>>>("%.2f" % 100.0).rstrip(" 0").rstrip(" .")

'100'

Oops, didn't think of what happens if the value is a multiple of 10.
Thanks for correcting me. And thanks to John, who found it too.

Marc

Floating Number format problem

Floating Number format problem

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