On Wed, 11 Feb 2004 14:48:22 -0500 in comp.lang.python, Bart Nessux
<bart_nessux at hotmail.com> wrote:
>Peter Hansen wrote:
>> Bart Nessux wrote:
>>
>>>x = str.find(temp, '120.50')
>>>
>>>I am looking for '120.50' '120.51' '122.78' etc. How can I do this with
>>>just one str.find... I can use re if I must, but I'd like to avoid it if
>>>possible.
>>
>>
>> In addition to Fecundo's questions, here's another. What does "temp"
>> contain? A single temperature string, or a temperature embedded in
>> a bunch of other stuff, or a whole series of temperatures, or what?
>>
>> -Peter
>
>Here's what I'm doing
>
>def exclude():
> import os
> os.chdir('/home/rbt/scripts')
> inputFile = file('ath_ips.txt', 'r')
> data = inputFile.read()
> inputFile.close()
> comment = '#'
> net0 = '128.173.120.'
> net1 = '128.173.122.'
> host0 = ['50','51','52','53','54','55']
> host1 = ['17','25','49','50','55','58','70']
> for h0 in host0:
> h0 = net0+h0
> rep0 = comment+h0
> sea0 = str.find(data, h0)
> if sea0 >=0:
> data = data.replace(h0, rep0)
> for h1 in host1:
> h1 = net1+h1
> rep1 = comment+h1
> sea1 = str.find(data, h1)
> if sea1 >=0:
> data = data.replace(h1, rep1)
> outputFile = file('ath_ips.txt', 'w')
> outputFile.write(data)
> outputFile.close()
>
There's no need to do an explicit find() before replace(). Your 'for'
loops can be written as
for h0 in host0:
data = data.replace(net0+h0, comment+net0+h0)
for h1 in host1:
data = data.replace(net1+h1, comment+net1+h1)
Or reduce it to one 'for' loop with list_comprehensions
for host in [net0+h0 for h0 in host0] + [net1+h1 for h1 in host1]:
data = data.replace(host, comment+host)
Dave