convert ints in a range to strings

Re: convert ints in a range to strings


"hokieghal9 9" <hokiegal99@hot mail.com> wrote in message
news:bkap6g$4o1 [email protected] t.edu...[color=blue]
> Hi,
>
> I'm trying to do this:
>
> ------------------------------
> a="192."
> b="168."
> c="1."
> r = range(256)
> for r in r:
> print a + b + c + r
> ------------------------------
>
> But, I get this error: cannot concatenate 'str' and 'int' objects. So, I
> need to convert the ints in the range to strs, but I do not know how to
> do that. Could someone help me? Ultimately, I want to print out
> something like this to a text file:
>
> 192.168.1.0
> 192.168.1.1
> 192.168.1.2
> ...
> 192.168.1.255
>
> Thanks!!!!
>
>
>
>[/color]
[color=blue][color=green][color=darkred]
>>> a="192."
>>> b="168."
>>> c="1."
>>> r = 12
>>> a + b + c + str(r)[/color][/color][/color]
'192.168.1.12'[color=blue][color=green][color=darkred]
>>> '%s%s%s%d' % (a,b,c,r)[/color][/color][/color]
'192.168.1.12'[color=blue][color=green][color=darkred]
>>>[/color][/color][/color]

I believe the second approach is generally faster.

Duncan

Re: convert ints in a range to strings

hokieghal99 <hokiegal99@hot mail.com> writes:[color=blue]
> ------------------------------
> a="192."
> b="168."
> c="1."
> r = range(256)
> for r in r:
> print a + b + c + r[/color]

for r in range(256):
print "192.168.1. %d" % r

Re: convert ints in a range to strings

Thank you (Paul & Duncan) for showing me how to do this!

Paul Rubin wrote:[color=blue]
> hokieghal99 <hokiegal99@hot mail.com> writes:
>[color=green]
>>------------------------------
>>a="192."
>>b="168."
>>c="1."
>>r = range(256)
>>for r in r:
>> print a + b + c + r[/color]
>
>
> for r in range(256):
> print "192.168.1. %d" % r[/color]

Re: convert ints in a range to strings

On Wed, 17 Sep 2003 19:02:40 -0400,
hokieghal99 <hokiegal99@hot mail.com> wrote:
[color=blue]
> Hi,
> I'm trying to do this:[/color]
[color=blue]
> ------------------------------
> a="192."
> b="168."
> c="1."
> r = range(256)
> for r in r:
> print a + b + c + r
> ------------------------------[/color]
[color=blue]
> But, I get this error: cannot concatenate 'str' and 'int' objects. So, I
> need to convert the ints in the range to strs, but I do not know how to
> do that. Could someone help me? Ultimately, I want to print out
> something like this to a text file:[/color]
[color=blue]
> 192.168.1.0
> 192.168.1.1
> 192.168.1.2
> ...
> 192.168.1.255[/color]

Try any or all of these:

print a + b + c + str( r )

print a + b + c + "%d" % r

print a + b + c + "%s" % r

print "%s%s%s%d" % (a, b, c, r)

Regards,
Heather

--
Heather Coppersmith
That's not right; that's not even wrong. -- Wolfgang Pauli

Re: convert ints in a range to strings

Thanks Heather... this did it:

outputFile = file('ips.txt', 'w')
r = range(256)
for r in range(256):
f = '192.168.1.%s\n ' % r #Change this line to macth your network.
outputFile.writ e(f)
outputFile.clos e()

Heather Coppersmith wrote:[color=blue]
> Try any or all of these:
>
> print a + b + c + str( r )
>
> print a + b + c + "%d" % r
>
> print a + b + c + "%s" % r
>
> print "%s%s%s%d" % (a, b, c, r)
>
> Regards,
> Heather
>[/color]

Re: convert ints in a range to strings

> Hi,[color=blue]
>
> I'm trying to do this:
>
> ------------------------------
> a="192."
> b="168."
> c="1."
> r = range(256)
> for r in r:
> print a + b + c + r
> ------------------------------
>[/color]

You could try this:

a="192"
b="168"
c="1"
for d in range(256):
print "%s.%s.%s.%s"%( a,b,c,d)


192.168.1.0
192.168.1.1
192.168.1.2
192.168.1.3
....
192.168.1.255

- Mike

Re: convert ints in a range to strings

hokieghal99 <hokiegal99@hot mail.com> wrote in message news:<bkap6g$4o [email protected]. vt.edu>...[color=blue]
> Hi,
>
> I'm trying to do this:
>
> ------------------------------
> a="192."
> b="168."
> c="1."
> r = range(256)
> for r in r:
> print a + b + c + r
> ------------------------------
>
> But, I get this error: cannot concatenate 'str' and 'int' objects. So, I
> need to convert the ints in the range to strs, but I do not know how to
> do that. Could someone help me? Ultimately, I want to print out
> something like this to a text file:
>
> 192.168.1.0
> 192.168.1.1
> 192.168.1.2
> ...
> 192.168.1.255
>
> Thanks!!!![/color]

for x in r :
print a + b + c + str(x)


but why not use ints all the way along like this:

a = 192
b = 168
c = 1
for n in range(256) :
print "%d.%d.%d.% d" % (a, b, c, n)

or simply don't use them at all:

for n in range(256) :
print "192.168.1. %d" % n

Re: convert ints in a range to strings

[hokieghal99][color=blue]
> a="192."
> b="168."
> c="1."
> r = range(256)
> for r in r:[/color]

This rebinding of r is an amazing non-error.
I had to read it twice before I believed that it worked.
Working or not, don't do this. Changing the meaning
of variable like this drives some people off the edge
and they end up working in pure functional languages
and never recover.
[color=blue]
> print a + b + c + r[/color]

As the others pointed out, str(r) will do the trick.


Raymond Hettinger

Re: convert ints in a range to strings


"hokiegal99 " <hokiegal99@hot mail.com> wrote in message
news:3F6900D2.7 080806@hotmail. com...[color=blue]
> Thanks Heather... this did it:
>
> outputFile = file('ips.txt', 'w')
> r = range(256)
> for r in range(256):
> f = '192.168.1.%s\n ' % r #Change this line to macth your network.
> outputFile.writ e(f)
> outputFile.clos e()
>[/color]

[snip]

The second line of this code does nothing useful. My feeling is that as r
is an integer you should really use %d, rather than %s.

Duncan