Can i become more precise like instead of printing all lines for PHE and
ASP is it possible that for PHE python will print only those lines which
will have information about H and HA and for ASP it will print those lines
which will have information about HA and HB.
Thanks
> On Tue, 14 Jul 2009 18:48:06 +0100, David Gibb <deg...@gmail.com> wrote:
>
> [Something top-posted, which I've shuffled down]
>
>> On Tue, Jul 14, 2009 at 1:33 PM, <amr...@iisermohali.ac.in> wrote:
>>> Dear all,
>>>
>>> Can anyone tell me that suppose i have a file having content like:
>>>
>>> Â Â _Atom_name
>>> Â Â Â _Atom_type
>>> Â Â Â _Chem_shift_value
>>> Â Â Â _Chem_shift_value_error
>>> Â Â Â _Chem_shift_ambiguity_code
>>> Â Â 1 Â Â 1 Â PHE Â Â Â H Â Â H Â Â Â 8.49 Â Â 0.02 Â Â
>>> 1
>>> Â Â 2 Â Â 1 Â PHE Â Â Â HA Â Â H Â Â Â 4.60 Â Â 0.02 Â Â
>>> 1
>>> Â Â 3 Â Â 1 Â PHE Â Â Â CA Â Â C Â Â 57.83 Â Â Â 0.3 Â Â
>>> 1
>>> Â Â 4 Â Â 2 Â LEU Â Â Â H Â Â H Â Â Â 8.23 Â Â 0.02 Â Â
>>> 1
>>> Â Â 5 Â Â 2 Â LEU Â Â Â HA Â Â H Â Â Â 4.25 Â Â 0.02 Â Â
>>> 1
>>> Â Â 6 Â Â 2 Â LEU Â Â Â HB2 Â H Â Â Â 1.54 Â Â 0.02 Â Â
>>> 1
>>> Â Â 7 Â Â 3 Â ASP Â Â Â H Â Â H Â Â Â 8.10 Â Â 0.02 Â Â
>>> 1
>>> Â Â 8 Â Â 3 Â ASP Â Â Â HA Â Â H Â Â Â 4.52 Â Â 0.02 Â Â
>>> 1
>>> Â Â 9 Â Â 3 Â ASP Â Â Â HB2 Â H Â Â Â 2.65 Â Â 0.02 Â Â
>>> 1
>>> stop
>>>
>>>
>>> now what i want that instead of copying all the lines it will just
>>> write
>>> the information about PHE and ASP then how i acn do that using python
>>> programming.Kindly tell me the command for that.
>
>> try something like:
>>
>> for line in open("filename").readlines():
>> if (re.search("PHE|ASP",line):
>> print line
>>
>
> The readlines() is unnecessary, and if your file is at all long you'd
> be better off precompiling the regular expression.
>
> import re
>
> expr = re.compile("PHE|ASP")
> with open("filename") as f:
> for line in f:
> if expr.search(line):
> print line
>
> --
> Rhodri James *-* Wildebeest Herder to the Masses
> --
> http://mail.python.org/mailman/listinfo/python-list
>
Amrita Kumari
Research Fellow
IISER Mohali
Chandigarh
INDIA
--
http://mail.python.org/mailman/listinfo/python-list
