Ctrl+D equivalent in IPython and bpython?

Question

In the standard Python interactive shell, I can press Ctrl+D to close stdin and it shows the output:

$ python
Python 2.7.2 (default, Mar  7 2012, 21:18:58) 
[GCC 4.5.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> for f in range(5):
...     print f     (I press Enter here)
...                 (I press Ctrl+D here) 
0
1
2
3
4
>>>

But in IPython and bpython, Ctrl+D doesn't work, I must press Enter twice to get the results:

IPython:

In [1]: for f in range(5):
   ...:     print f     (I press Enter here)
   ...:                 (I press Enter here)
   ...:                 (I press Enter here)
0
1
2
3
4

bpython:

>>> for f in range(5):
...     print f     (I press Enter here)
...                 (I press Enter here)
...                 (I press Enter here)
0
1
2
3
4

The version which I'm using:

[I] dev-python/ipython
     Available versions:  0.10 0.10.1 0.10.2 ~0.12-r1 {doc emacs examples gnuplot matplotlib mongodb notebook qt4 readline (+)smp sqlite test wxwidgets}
     Installed versions:  0.10.2(03:54:09 PM 08/12/2011)(examples readline -doc -emacs -gnuplot -smp -test -wxwidgets)
     Homepage:            http://ipython.org/
     Description:         Advanced interactive shell for Python

[I] dev-python/bpython
     Available versions:  0.9.7.1 0.10.1 {gtk urwid}
     Installed versions:  0.10.1(10:34:17 AM 03/14/2012)(gtk -urwid)
     Homepage:            http://www.bpython-interpreter.org/ https://bitbucket.org/bobf/bpython/ http://pypi.python.org/pypi/bpython
     Description:         Syntax highlighting and autocompletion for the Python interpreter

What's the question? If you want change the behaviour of IPython, you can't. And to be fair two enters is exactly the same number of key presses as Ctrl-D. — Dunes, Mar 15 '12 at 11:15
OK, 2 enters = Ctrl-D. But is there any key combination in `ipython`, `bpython`? Why the standard python interpreter needs only one enter while `ipython`, `bpython` needs press Enter 2 times? Are they nested interpreter? — quanta, Mar 15 '12 at 11:46
IPython uses `raw_input` for the prompt. For some reason, Ctrl-D is silenced if there's already any text after the prompt. And the auto-indentation puts four spaces after the prompt on the next line, so IPython never sees your Ctrl-D. — Thomas K, Mar 15 '12 at 12:41

score 0 · Accepted Answer · edited Apr 08 '16 at 19:49

I solved half the problem by upgrading IPython to version 0.12-r1:

[I] dev-python/ipython
     Available versions:  0.10 0.10.1 0.10.2 (~)0.12-r1 {doc emacs examples gnuplot matplotlib mongodb notebook qt4 readline (+)smp sqlite test wxwidgets}
     Installed versions:  0.12-r1(11:47:58 AM 03/16/2012)(examples qt4 readline smp -doc -emacs -matplotlib -mongodb -notebook -sqlite -test -wxwidgets)
     Homepage:            http://ipython.org/
     Description:         Advanced interactive shell for Python

Pay attention to the ...: you'll see that I only need to press Enter two times: the first one to make a new line and the second one to close stdin and display the results:

$ ipython
Python 2.7.2 (default, Mar  7 2012, 21:18:58) 
Type "copyright", "credits" or "license" for more information.

IPython 0.12 -- An enhanced Interactive Python.
?         -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help      -> Python's own help system.
object?   -> Details about 'object', use 'object??' for extra details.

In [1]: for i in range(2):
   ...:     for j in range(2):
   ...:         print i*j
   ...:         
0
0
0
1

About bpython, it needs to go to the line which has no indentation before showing the output. For testing purposes, if I use two nested for loops, I must press Enter four times:

>>> for i in range(2):
...     for j in range(2):
...         print i*j
...         
...     
... 
0
0
0
1

score -1 · Answer 2 · edited May 06 '15 at 11:51

-1

you just need to press Enter key twice, the standard Python interactive shell and IPython provide the same result + effect here.

edited May 06 '15 at 11:51

Abhishek

6,912
14
59
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answered Mar 15 '12 at 13:02

Minh-Triet Pham Tran

349
4
13

Ctrl+D equivalent in IPython and bpython?

2 Answers2