Readline configuration

[Mark Roach]

I have readline set up pretty much the same way as in the example in the
python docs (http://docs.python.org/lib/readline-example.html) and
something I find myself doing fairly often is

type some code
more code
more code
...

and then wanting to scroll back through the history to run the same code
again after a module = reload(module). In Windows, this is pretty
convenient as I can use up to move to point x in the history, press enter,
and press down to move to point x+1 in history. Is there any way to get
the same behavior with readline?

It would be great to be able to ctrl+r <type part of first line> then just
hit down+enter to reenter the rest of the code.

Thanks,

Mark

 

[Fernando Perez]

I have readline set up pretty much the same way as in the example in the
python docs (http://docs.python.org/lib/readline-example.html) and
something I find myself doing fairly often is

type some code
more code
more code
...

and then wanting to scroll back through the history to run the same code
again after a module = reload(module). In Windows, this is pretty
convenient as I can use up to move to point x in the history, press enter,
and press down to move to point x+1 in history. Is there any way to get
the same behavior with readline?

It would be great to be able to ctrl+r <type part of first line> then just
hit down+enter to reenter the rest of the code.

See ipython (http://ipython.scipy.org). It provides mostly what you want:

In [1]: for i in range(3):
...: print i,
...:
0 1 2

In [2]: print 'hello'
hello

In [3]: exec In[1]
0 1 2

Readline history search is bound to Ctrl-P/N (type a few characters, then hit
Ctrl-P/N to get previous/next lines with those matching chars). Ctrl-r search
is also configured by default.

HTH,

f