Path: csiph.com!usenet.pasdenom.info!news.albasani.net!newsfeed.freenet.ag!news2.euro.net!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail
From: "Prasad, Ramit" <ramit.prasad@jpmorgan.com>
To: "python-list@python.org" <python-list@python.org>
Subject: RE: turn list of letters into an array of integers
Thread-Topic: turn list of letters into an array of integers
Thread-Index: AQHNsakLO5FlxDzvY0299UEJeVNzNZfINrgAgAJSQJA=
Date: Thu, 25 Oct 2012 21:27:16 +0000
References: <07073002-d79f-46f6-83fc-8d20c51b39c3@googlegroups.com> <CA+vVgJXYET2xDT-zkkK1qj-qBsJDq56=K7jHzmhfr1Cb4-p29w@mail.gmail.com>
In-Reply-To: <CA+vVgJXYET2xDT-zkkK1qj-qBsJDq56=K7jHzmhfr1Cb4-p29w@mail.gmail.com>
Accept-Language: en-US
Content-Language: en-US
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Precedence: list
Newsgroups: comp.lang.python
Message-ID: <mailman.2870.1351200457.27098.python-list@python.org>
Lines: 33
NNTP-Posting-Host: 2001:888:2000:d::a6
Xref: csiph.com comp.lang.python:32170

David Hutto wrote:=0D=0A> On Wed, Oct 24, 2012 at 1:23 AM, seektime <michae=
l=2Ej=2Ekrause@gmail=2Ecom> wrote:=0D=0A> > Here's some example code=2E The=
 input is a list which is a "matrix" of letters:=0D=0A> >    a  b  a=0D=0A>=
 >    b  b  a=0D=0A> >=0D=0A> > and I'd like to turn this into a Python arr=
ay:=0D=0A> >=0D=0A> >   1 2 1=0D=0A> >   2 2 1=0D=0A> >=0D=0A> > so 1 repla=
ces a, and 2 replaces b=2E Here's the code I have so far:=0D=0A> >=0D=0A> >=
>>> L=3D['a b a\n','b b a\n']=0D=0A> >>>> s=3D' '=2Ejoin(L)=0D=0A> >>>> seq=
1=3D('a','b')=0D=0A> >>>> seq2=3D('1','2')=0D=0A> >>>> d =3D dict(zip(seq1,=
seq2))=0D=0A> >>>> # Define method to replace letters according to dictiona=
ry (got this from=0D=0A> http://gommeitputor=2Ewordpress=2Ecom/2008/09/27/s=
earch-replace-multiple-words-or-characters-with-python/)=2E=0D=0A> > =2E=2E=
=2E def replace_all(text, dic):=0D=0A> > =2E=2E=2E     for i, j in dic=2Eit=
eritems():=0D=0A> > =2E=2E=2E         text =3D text=2Ereplace(i, j)=0D=0A> =
> =2E=2E=2E     return text=0D=0A> > =2E=2E=2E=0D=0A> >=0D=0A> >>>> seq =3D=
 replace_all(s,d)=0D=0A> >>>> print seq=0D=0A> > 1 2 1=0D=0A> >  2 2 1=0D=
=0A> >=0D=0A> >>>> seq=0D=0A> > '1 2 1\n 2 2 1\n'=0D=0A> >=0D=0A> I'd sugge=
st, if this is what you're referring to:=0D=0A> =0D=0A> x =3D seq=2Esplit('=
\n  ')=0D=0A> array_list =3D [ ]=0D=0A> next_3_d_array =3D []=0D=0A> range_=
of_seq =3D len(seq)=0D=0A> for num in range(0,range_of_seq):=0D=0A>        =
if num % 3 !=3D 0:=0D=0A>                next_3_d_array=2Eappend(num)=0D=0A=
>        if num % 3 =3D=3D 0:=0D=0A>                    array_list=2Eappend=
(next_3_d_array)=0D=0A>                    next_3_d_array =3D [ ]=0D=0A> =
=0D=0A=0D=0AWow, that looks complicated=2E Why hardcode to 3 instead of whe=
re ever=0D=0Athe newline is?=0D=0A=0D=0A>>> [ int(x=2Estrip()) for subseq i=
n seq=2Esplit('\n') for x in subseq=2Esplit() ]=0D=0A[1, 2, 1, 2, 2, 1]=0D=
=0A>>> lst =3D []=0D=0A# OR=0D=0A>>> for subseq in seq=2Esplit('\n'):=0D=0A=
=2E=2E=2E     for x in subseq=2Esplit():=0D=0A=2E=2E=2E         lst=2Eappen=
d( int(x=2Estrip()))=0D=0A=2E=2E=2E     =0D=0A>>>=0D=0A=0D=0ARamit Prasad=
=0D=0A=0D=0A=0D=0AThis email is confidential and subject to important discl=
aimers and=0D=0Aconditions including on offers for the purchase or sale of=
=0D=0Asecurities, accuracy and completeness of information, viruses,=0D=0Ac=
onfidentiality, legal privilege, and legal entity disclaimers,=0D=0Aavailab=
le at http://www=2Ejpmorgan=2Ecom/pages/disclosures/email=2E