Provide access to a debugger within the development server

[Sameer Rahmani]

Sometimes a django project did not raise any exception but things are not going as well as we want. so it will be a good idea to
to run an interactive shell or pdb shell where we want in code or when an exception raised. the patch that i provide add an settings variable called "INLINE_DEBUGGER", that gets to value "interactive" and "pdb" and its default value is None.

if user set "INLINE_DEBUGGER" to "interactive" then when an exception raised a python interactive shell or ipython shell will executed with the exception locals. so user can easily test some condition in his/her code.

if user set "INLINE_DEBUGGER" to "pdb", when an exception raised django will execute a pdb shell with the exception locals.

forgive me because of my poor English

[Sameer Rahmani]

inline debug patch

[Russell Keith-Magee]

As noted ​on django-dev -- notionally accepted, but the provided patch won't be the way to do it. This isn't something that can be inserted into the base HTTP handler, because that code will end up on production servers.

[Russell Keith-Magee]

... and please don't include [patch] in the subject. We know it has a patch -- that's why we have a "has patch" flag on the ticket.

[Aymeric Augustin]

Change UI/UX from NULL to False.

[Aymeric Augustin]

Change Easy pickings from NULL to False.

[Mariusz Felisiak]

I don't think there is a way to move it forward. We can reconsider this decision only if someone provides PoC.