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Date: Sat, 21 May 2011 23:42:00 -0700
Subject: Re: Is there a better way to solve this?
From: Chris Rebert <clp2@rebertia.com>
To: Ganapathy Subramanium <sganapathy.subramanium@gmail.com>
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On Sat, May 21, 2011 at 11:28 PM, Ganapathy Subramanium
<sganapathy.subramanium@gmail.com> wrote:
> Hello,
>
> I'm a new bie to python programming and on the processing of learning pyt=
hon
> programming. I have coded my first program of fibonnaci generation and wo=
uld
> like to know if there are better ways of achieving the same.
>
> I still feel quite a few things to be improved. Just wanted experts thoug=
hts
> on this.
>
> try:
>
> =C2=A0=C2=A0=C2=A0 length =3D input('Enter the length till which you want=
 to generate the
> fibonnaci series: \n')
> =C2=A0=C2=A0=C2=A0 print type(length)
>
> except:
> =C2=A0=C2=A0=C2=A0 print 'Invalid input detected'
> =C2=A0=C2=A0=C2=A0 exit(0)

Never use the input() function in Python 2.x; it does an eval(), which
is evil. Always use raw_input() and an explicit conversion instead;
e.g.

Q =3D 'Enter the length till which you want to generate the fibonnaci serie=
s: \n'
try:
    length =3D int(raw_input(Q))
except ValueError:
    print 'Invalid input detected'
    exit(0)


Also, as a sidenote:

> if type(length) is int:

Is normally written:

if isinstance(length, int):

Cheers,
Chris
--
http://rebertia.com