[IPython-dev] Argument parsing (was: Qt api selection re. ipython and matplotlib)

[Ilan Schnell]

> only because 0.11.rc1 got into EPD

I hope this is not the only reason.  We will probably do an EPD
bug fix release in a few weeks, in which I'm planing to update
to 0.11 final.

- Ilan


On Thu, Jul 7, 2011 at 6:41 PM, MinRK <benjaminrk at gmail.com> wrote:
> We have relaxed the syntax in 0.11, so you can do the more familiar
> '--gui=qt' pattern, and 'ipython -i foo.py' should work as expected.
> The 'gui=qt' way will still work in 0.11, only because 0.11.rc1 got
> into EPD, but I think we will remove it in 0.12.  I also added support
> for '--' to halt parsing, as Robert described.
>
> Since we aren't doing unusual things for the simple cases, I opened an
> issue to replace the existing machinery for everything short of fully
> specified Class.trait=value with argparse, and only using our extra
> code for that single case, since it just makes more sense. I don't
> believe this will happen in 0.11.
>
> @Julian '-i' should work fine now (its alias was --i, since we used to
> require two leading '-' for flags, as described in the help output).
> We don't (and won't) support 'ipython -c "stuff"' until we go back to
> using argparse. Its alias is 'c' (used as 'c=stuff' or, with current
> master, '--c=stuff'), as described in the help output, until then.  I
> also believe I fixed the inherited-argv bug for scripts that you
> described.
>
> -MinRK
>
> On Thu, Jul 7, 2011 at 09:55, Robert Kern <robert.kern at gmail.com> wrote:
>> On 7/7/11 11:32 AM, MinRK wrote:
>>> On Thu, Jul 7, 2011 at 07:00, Darren Dale<dsdale24 at gmail.com>  wrote:
>>
>>>> Or, suppose I have a file named something pathological like foo=bar?
>>>> Python will run it without any problems. Even if I rename it
>>>> foo=bar.py, ipython appears to interpret it as an option, not a
>>>> filename.
>>>
>>> You can always give more path information, so `ipython ./profile` or
>>> `ipython ./foo=bar` will work*.  Python has the exact same
>>> vulnerability to pathological filenames matching their argument
>>> patterns, like files called '-foo' or '-zebulon'. Obviously, given our
>>> more flexible syntax, our cases cast a wider net.
>>
>> Well, with argparse, you can use the standardized "--" marker to indicate that
>> everything following is an argument, not an option. E.g.
>>
>>   $ ipython -pylab -- -foo.py
>>
>> --
>> Robert Kern
>>
>> "I have come to believe that the whole world is an enigma, a harmless enigma
>>  that is made terrible by our own mad attempt to interpret it as though it had
>>  an underlying truth."
>>   -- Umberto Eco
>>
>> _______________________________________________
>> IPython-dev mailing list
>> IPython-dev at scipy.org
>> http://mail.scipy.org/mailman/listinfo/ipython-dev
>>
> _______________________________________________
> IPython-dev mailing list
> IPython-dev at scipy.org
> http://mail.scipy.org/mailman/listinfo/ipython-dev
>