Correct docstring of ipython.py

[asmeurer]

The script installed by setup.py is auto-generated by distutils.

Fixes #2858.

[minrk]

I misspoke - it's setuptools that does console_scripts, there are hardcoded scripts that are ~never used in IPython/scripts and IPython/parallel/scripts.

[asmeurer]

So should those other scripts be deleted?

[minrk]

In the (fairly rare, these days) cases of downloading a tarball and running setup.py install, I think they are still used.
In any case, there was never any reason for ipython.py to mention where the entry point scripts came from.

[asmeurer]

I personally came across this because I wanted to know what the entry point script was. I initially thought it was ipython.py, and only learned otherwise after reading the docstring (and opening #2858). So I think the note is useful, if that's what you mean.

[minrk]

I only mean it doesn't have to describe the particulars of the installed scripts - it just needs to identify itself as not that.

[asmeurer]

I personally think it's useful. In fact, after learning that you could do that from all this, I implemented it in another project (inducer/pudb#54).

[minrk]

fair enough.