New submission from Christoph Böddeker:
Hello,
I found a wrong behavior with IPython 4 in combination with Python 3.5.1.
Normally in a command like "In [2]: !echo {a}" everything inside {} is
interpreted with python and inserted to executed the line with bash. After I
done a upgrade tp Python 3.5.1 this wasn't working. After a downgrade (3.5.0)
it was working.
In the bottom is an example, where "In [2]: !echo {a}" are the important lines.
In [2]: !echo {a}
* Python 3.5.0 -> 3
* Python 3.5.1 -> {a}
Best regards
Christoph
-----------------------------------------------------------------------
$ ipython
Python 3.5.1 |Anaconda 2.4.0 (64-bit)| (default, Dec 7 2015, 11:16:01)
Type "copyright", "credits" or "license" for more information.
IPython 4.0.0 -- 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]: a = 3
In [2]: !echo {a}
{a}
In [3]:
-----------------------------------------------------------------------
conda install python=3.5.0
Fetching package metadata: ....
Solving package specifications: ................
Package plan for installation in environment /opt/anaconda3:
The following packages will be DOWNGRADED:
python: 3.5.1-0 --> 3.5.0-1
Proceed ([y]/n)? y
Unlinking packages ...
[ COMPLETE ]|###################################################| 100%
Linking packages ...
[ COMPLETE ]|###################################################| 100%
-----------------------------------------------------------------------
$ ipython
Python 3.5.0 |Anaconda 2.4.0 (64-bit)| (default, Oct 19 2015, 21:57:25)
Type "copyright", "credits" or "license" for more information.
IPython 4.0.0 -- 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]: a = 3
In [2]: !echo {a}
3
In [3]:
----------
messages: 257833
nosy: Christoph Böddeker
priority: normal
severity: normal
status: open
title: IPython4 bash magic ! with {} does not work with Python 3.5.1
type: behavior
versions: Python 3.5
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue26062>
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