Re: [Tutor] blank space after a number
On 12/28/2010 8:09 PM, bob gailer wrote: Now that I understand what you want - for b in range(120): print '%0*i' % (max(2,int(math.log10(b))), b) Sorry forgot to add import math -- Bob Gailer 919-636-4239 Chapel Hill NC ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] blank space after a number
"Enih Gilead" wrote a, b = 0, 1 while b < 10: print '%i%i' % (a,b) + ',', b = b+1 If you are using string formatting it's best to get the format string to do as much of the work as possible. In this case forget about 'a' and just insert the zero into the string, and similarly don't add a comma and space, just put it in the string And for a fixed number of iterations a for loop is usually preferable: for b in range(1,10): print "%02d, " % b Does the same job. ''' 01, 02, 03, 04, 05, 06, 07, 08, 09, ''' while b < 100: print '%i' % (b) + ',', b = b+1 And exactly the same code with the limit increased for b in range(1,101): #NB 101 to get the 100 - your while loop goes to 99... print "%02d, " % b ''' 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100 ''' The %02d says print the number as two characters, padding with zeros as needed. HTH, -- Alan Gauld Author of the Learn to Program web site http://www.alan-g.me.uk/ ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] blank space after a number
Now that I understand what you want - for b in range(120): print '%0*i' % (max(2,int(math.log10(b))), b) -- Bob Gailer 919-636-4239 Chapel Hill NC ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] blank space after a number
I'll just add there's a better way to do both of the examples you've done there - > > a, b = 0, 1 > > while b < 10: > >print '%i%i' % (a,b) + ',', > >b = b+1 An easier way of doing this is to instead do the following, including the a (although not needed, as simply using 0 would work) - a, b = 0, 1 while b <10: print '%i%i,' % (a,b), b += 1 > while b < 100: > > print '%i' % (b) + ',', > > b = b+1 > while b < 100: print '%i,' % (b), b += 1 Or, using generators and a *for *loop (which is more suited to the task than a *while *loop): def stringify(x): if x < 10: return '0' + str(x) else: return str(x) print ','.join(stringify(x) for x in xrange(1,101)) ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] blank space after a number
Thanks a lot,
Hugo Yoshi!
As a beginner in Python, I do my best to satisfy my curiosity about some
features in the language; and, this one was the most difficult among my
"projects"! :c)
Best regards,
Enih Gil'ead
# Formatting numbers from '01,' to '100'
# Many thanks to Bob Gailer and to Hugo Yoshi
a, b = 0, 1
while b < 10:
print '%i%i' % (a,b) + ',',
b = b+1
# what results in:
'''
01, 02, 03, 04, 05, 06, 07, 08, 09, '''
while b < 100:
print '%i' % (b) + ',',
b = b+1
# what results in:
'''
01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18,
19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36,
37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54,
55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72,
73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90,
91, 92, 93, 94, 95, 96, 97, 98, 99, 100 '''
print 100
On 12/28/2010 05:31 PM, Hugo Arts wrote:
On Tue, Dec 28, 2010 at 2:54 PM, Enih Gilead wrote:
Hi, Abrahamsen!
Would you mind tell me a way to eliminate the blank space in front of "a"
[int number] ?
Just as an example, the 'a' that is made = to '0', when printed, it comes
with a blank space after...
a, b = 0, 1
while b< 10:
print a, b,
a, b = a, b + 1
... do you think is there any reasonable way to transform the '0' number
into string and then back to numeral - after the printing action?
If you put commas between things in a print statement, python will put
a space in between. Either use string formatting or convert to str()
and add together:
print "{0}{1}".format(a, b),
print str(a) + str(b),
Hugo
--
Shalom be'Shem 'Adonay, Enih Gil'ead
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Re: [Tutor] blank space after a number
On 12/28/2010 2:36 PM, Alan Gauld wrote: "Enih Gilead" wrote Just as an example, the 'a' that is made = to '0', when printed, it comes with a blank space after... a, b = 0, 1 while b < 10: print a, b, a, b = a, b + 1 ... do you think is there any reasonable way to transform the '0' number into string and then back to numeral - after the printing action? You can use string formatting to create the string any way tou want: print "%d%d" % a,b Erm... print "%d%d" % (a,b) will print 01 Or you can use string conversion and catenastion: print str(a)+str(b) to get a similar result. Incidentally your loop would be clearer if you omited the tuple assignment: while b < 10: print a, b, b += 1 And if you only use 'a' to zero pad the number you can do that with string formatting too: print "%02d" % b Personally I'd go for string formatting because of its much more powerful and flexible options. -- Bob Gailer 919-636-4239 Chapel Hill NC ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] blank space after a number
"Enih Gilead" wrote Just as an example, the 'a' that is made = to '0', when printed, it comes with a blank space after... a, b = 0, 1 while b < 10: print a, b, a, b = a, b + 1 ... do you think is there any reasonable way to transform the '0' number into string and then back to numeral - after the printing action? You can use string formatting to create the string any way tou want: print "%d%d" % a,b will print 01 Or you can use string conversion and catenastion: print str(a)+str(b) to get a similar result. Incidentally your loop would be clearer if you omited the tuple assignment: while b < 10: print a, b, b += 1 And if you only use 'a' to zero pad the number you can do that with string formatting too: print "%02d" % b Personally I'd go for string formatting because of its much more powerful and flexible options. -- Alan Gauld Author of the Learn to Program web site http://www.alan-g.me.uk/ ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] blank space after a number
On 12/28/2010 8:54 AM, Enih Gilead wrote: Hi, Abrahamsen! Would you mind tell me a way to eliminate the blank space in front of "a" [int number] ? Just as an example, the 'a' that is made = to '0', when printed, it comes with a blank space after... a, b = 0, 1 while b < 10: print a, b, a, b = a, b + 1 ... do you think is there any reasonable way to transform the '0' number into string and then back to numeral - after the printing action? Use formatting: print '%i%i' % (a,b) -- Bob Gailer 919-636-4239 Chapel Hill NC ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] blank space after a number
On Tue, Dec 28, 2010 at 2:54 PM, Enih Gilead wrote:
> Hi, Abrahamsen!
>
> Would you mind tell me a way to eliminate the blank space in front of "a"
> [int number] ?
> Just as an example, the 'a' that is made = to '0', when printed, it comes
> with a blank space after...
>
> a, b = 0, 1
> while b < 10:
> print a, b,
> a, b = a, b + 1
>
> ... do you think is there any reasonable way to transform the '0' number
> into string and then back to numeral - after the printing action?
>
If you put commas between things in a print statement, python will put
a space in between. Either use string formatting or convert to str()
and add together:
print "{0}{1}".format(a, b),
print str(a) + str(b),
Hugo
___
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[Tutor] blank space after a number
Hi, Abrahamsen! Would you mind tell me a way to eliminate the blank space in front of "a" [int number] ? Just as an example, the 'a' that is made = to '0', when printed, it comes with a blank space after... a, b = 0, 1 while b < 10: print a, b, a, b = a, b + 1 ... do you think is there any reasonable way to transform the '0' number into string and then back to numeral - after the printing action? Thanks beforehand ve'Shalom be'Shem 'Adonay, Enih Gil'ead ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
