RE: [Tutor] turning a number into a formated string
Very elegant, It makes me feel like "I should have thought of that". Thanks
for the help and the reminder to think of the simplistic approach.
John
-Original Message-
From: Tim Peters [mailto:[EMAIL PROTECTED]
Sent: Wednesday, December 15, 2004 12:15
To: Ertl, John
Cc: tutor-list (Python)
Subject: Re: [Tutor] turning a number into a formated string
[Ertl, John]
> I need to take a number and turn it into a formatted string.
> The final output needs to look like when the X is the
> integer part padded on the left and Y is the decimal part padded
> on the right.
> I figured I could split the number at "." and then use zfill or
> something like this (LEVEL1 = "%04d" % LEVEL1) for the
> part but I am not sure how to right pad the decimal part of the
> number.
> Example.
> 1 and 1.0 needs to look like 0001 ( I figured I would have to
> check the length of the list made from the split to see if a decimal
> portion existed)
> 1.1 needs to look like 00011000
> 22.33 needs to look like 00223330
Really? The input has two digits 3, but the output has three digits
3. I'll assume you meant 00223300 instead.
> .22 needs to look like 2200
> Any ideas on the right padding the decimal side using "0"
I expect that a "%09.4f" format does everything you asked for, except
that it contains a period. So let's try to repair that:
>>> def johnpad(n):
... return ("%09.4f" % n).replace('.', '')
Then:
>>> johnpad(1)
'0001'
>>> johnpad(1.0)
'0001'
>>> johnpad(1.1)
'00011000'
>>> johnpad(22.33)
'00223300'
>>> johnpad(.22)
'2200'
>>>
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Re: [Tutor] turning a number into a formated string
On Wed, 15 Dec 2004, Tim Peters wrote:
> ... return ("%09.4f" % n).replace('.', '')
Totally cool.
Marilyn
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Re: [Tutor] turning a number into a formated string
[Ertl, John]
> I need to take a number and turn it into a formatted string.
> The final output needs to look like when the X is the
> integer part padded on the left and Y is the decimal part padded
> on the right.
> I figured I could split the number at "." and then use zfill or
> something like this (LEVEL1 = "%04d" % LEVEL1) for the
> part but I am not sure how to right pad the decimal part of the
> number.
> Example.
> 1 and 1.0 needs to look like 0001 ( I figured I would have to
> check the length of the list made from the split to see if a decimal
> portion existed)
> 1.1 needs to look like 00011000
> 22.33 needs to look like 00223330
Really? The input has two digits 3, but the output has three digits
3. I'll assume you meant 00223300 instead.
> .22 needs to look like 2200
> Any ideas on the right padding the decimal side using "0"
I expect that a "%09.4f" format does everything you asked for, except
that it contains a period. So let's try to repair that:
>>> def johnpad(n):
... return ("%09.4f" % n).replace('.', '')
Then:
>>> johnpad(1)
'0001'
>>> johnpad(1.0)
'0001'
>>> johnpad(1.1)
'00011000'
>>> johnpad(22.33)
'00223300'
>>> johnpad(.22)
'2200'
>>>
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Re: [Tutor] turning a number into a formated string
Here's one way:
left, right = str(number).split('.')
output = "%04d%d" % (int(left), int(right)) + (4 - len(right)) * '0'
Maybe someone has a more elegant way.
Hope it helps,
Marilyn Davis
On Wed, 15 Dec 2004, Ertl, John wrote:
> I need to take a number and turn it into a formatted string.
> The final output needs to look like when the X is the integer
> part padded on the left and Y is the decimal part padded on the right.
> I figured I could split the number at "." and then use zfill or something
> like this (LEVEL1 = "%04d" % LEVEL1) for the part but I am not sure
> how to right pad the decimal part of the number.
> Example.
> 1 and 1.0 needs to look like 0001 ( I figured I would have to check the
> length of the list made from the split to see if a decimal portion existed)
> 1.1 needs to look like 00011000
> 22.33 needs to look like 00223330
> .22 needs to look like 2200
> Any ideas on the right padding the decimal side using "0"
> Thanks,
> John
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> http://mail.python.org/mailman/listinfo/tutor
>
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