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From: "Prasad, Ramit" <ramit.prasad@jpmorgan.com>
To: Jonathan Hayward <jonathan.hayward@pobox.com>, "python-list@python.org" <python-list@python.org>
Subject: RE: Experimental Python-based shell
Thread-Topic: Experimental Python-based shell
Thread-Index: AQHNoPRV0wgQLeiccEK25RVYzyMRw5en3e6AgAAd74CAAAyzAIAAEJKAgAGfa/A=
Date: Thu, 4 Oct 2012 22:24:17 +0000
References: <8646284b-df85-45fe-a793-56b081c6262c@googlegroups.com> <CAL7_Mo-dze8rm7=0URB9RTL_QHHWb+NovPu4KpDc21AH2ASNJA@mail.gmail.com> <CAE6_B5QHBE_8jk7x4EkFdwTdEpUNGmSxP-+4QkE6wuC_KbxAQw@mail.gmail.com> <CAL7_Mo8uJLS68jFP-9-GzvjYu3RdqTXtAz8W9YJc=sfi9HOCQQ@mail.gmail.com> <CAE6_B5T-GHaU7tL4tMBsYqEDao6T_5HhB3uhStw2e+f_eTEitA@mail.gmail.com>
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(A little quoting manipulation to make it easier to read with=0D=0Aappropri=
ate context=2E)=0D=0A=0D=0A> > On Wed, Oct 3, 2012 at 11:25 AM, Amirouche B=
oubekki <amirouche=2Eboubekki@gmail=2Ecom> wrote:=0D=0A> >=0D=0A> 2012/10/3=
 Jonathan Hayward <jonathan=2Ehayward@pobox=2Ecom>=0D=0A> > > The chief ben=
efit besides the searching, so far, is that you can use Py3k mixed with she=
ll commands as the=0D=0A> > > scripting language--so script in Python inste=
ad of bash=2E=0D=0A> > >=0D=0A> > > When using Python for scripting, Python=
 lines are indented by an extra tab (or four spaces) while shell-like=0D=0A=
> > > commands are not indented=2E So:=0D=0A> =0D=0A> > > cjsh> =A0 =A0 for=
 index in range(10):=0D=0A> > > ----> echo %(index)d=0D=0A> > > ---->=0D=0A=
> > > 0=0D=0A> > > 1=0D=0A> > > 2=0D=0A[snip]=0D=0A> > =0D=0A> > > Echo cou=
ld (and maybe should) be a built-in, but it isn't=2E The output is os=2Esys=
tem()'ed to bash, which echoes=0D=0A> > > based on a command that includes =
the value of a Python variable=2E The implementation is a bit crude, but it=
 is=0D=0A> > reasonably powerful=2E=0D=0A> > > =0D=0A> > > I have other thi=
ngs on the agenda, like making it able to run scripts and doing fuzzy match=
ing, but for now=0D=0A> > > those are the main two attractions=2E=0D=0A> > =
=0D=0A=0D=0A> > Is it possible to drop completly the bash syntax and use so=
me python library (I saw it on github) that wraps=0D=0A> > bash commands wi=
th python functions or the other around making it possible to call python f=
unctions with a bash-=0D=0A> > like syntax=2E The syntax you are talking ab=
out seems strange=2E=0D=0A> > =0D=0A> > Regards,=0D=0A> > =0D=0A> > Amirouc=
he=0D=0A=0D=0AJonathan Hayward wrote:=0D=0A> I am open to suggestions and p=
atches=2E I don't think the syntax strange, though: it offers a clear and d=
istinct=0D=0A> way to differentiate Python and shell commands, and shell co=
mmands can access Python variables when specified=2E=0D=0A> And it is a sim=
ple rule, without footnotes needed=2E=0D=0A=0D=0AI need more footnotes=2E :=
) Does every shell command not have indentation? =0D=0AHow can you tell if =
the shell command is supposed to be in the loop or after=0D=0Athe loop?=0D=
=0A=0D=0A    for index in range(10):=0D=0A        # do something=0D=0Aecho =
%(index)d=0D=0A=0D=0AIs the above equivalent to Python pseudo-code solution=
 A or B?=0D=0A=0D=0ASolution A,=0D=0Afor index in range(10):=0D=0A    #do s=
omething=0D=0APopen('echo', file_path)=0D=0A=0D=0ASolution B,=0D=0Afor inde=
x in range(10):=0D=0A    #do something=0D=0A    Popen('echo', file_path)=0D=
=0A=0D=0AHow do I make achieve the other solution?=0D=0A=0D=0A=0D=0AThis em=
ail is confidential and subject to important disclaimers and=0D=0Acondition=
s including on offers for the purchase or sale of=0D=0Asecurities, accuracy=
 and completeness of information, viruses,=0D=0Aconfidentiality, legal priv=
ilege, and legal entity disclaimers,=0D=0Aavailable at http://www=2Ejpmorga=
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