[IPython-dev] Installation docs out of date

Ryan Nelson rnelsonchem at gmail.com
Fri Feb 13 13:59:43 EST 2015

Yeah. The docs (http://ipython.org/install.html) should probably mention
this if they are going to reference conda specifically. However, it is a
conda-specific issue, so it might be more appropriate to point users to the
continuum documentation instead. Especially, given that the IPython docs
suggest installing the full Anaconda package (which has notebook) and do
not mention Miniconda, which it looks like you are using. You can search
the conda package repository pretty easily:
But I agree that this it is not well documented.

I have miniconda on a Linux distro, and fresh environments don't install
pip. This caused some problems for me at first because it was using the
system pip, which was no good. Do you have another Python install on your
computer? You could do a `conda install pip` and make sure you have the
Continuum version.

Just out of curiosity, why would use want to use pip at all? It might be
safer to install things using conda exclusively. You might run into
problems with pip when you are trying to install modules that require
compiled components such as Qt4/5. For example, the command `conda install
ipython ipython-notebook ipython-qtconsole` will install ipython and all
the dependencies, including a precompiled version of the Qt libraries. I
don't think a `pip install pyqt4` will do that. (?)  See here for more:
However, the answer here is a little misleading because the conda-installed
pip will install packages that are conda-aware. That is, I've installed
packages with the conda version of pip, and `conda list` will show these
packages as being installed.

On Fri, Feb 13, 2015 at 1:16 PM, Ian Bell <ian.h.bell at gmail.com> wrote:

> On Fri, Feb 13, 2015 at 9:12 AM, Ryan Nelson <rnelsonchem at gmail.com>
> wrote:
>> With Anaconda, you can use `conda` to install these packages.
>> $ source activate your_env # Not necessary for root environment
>> $ conda install ipython ipython-notebook ipython-qtconsole
> Exactly this should be on the website.  Its not obvious what conda package
> is required to get full notebook support.  The
> conda update ipython
> command doesn't do it.
>> On Fri, Feb 13, 2015 at 11:06 AM, Ian Bell <ian.h.bell at gmail.com> wrote:
>>> I tried to install ipython+dependencies on a new machine, and it dies
>>> when it tries to install the dependencies:
>>> C:\Users\ihb>pip install ipython[all]
>>> Requirement already satisfied (use --upgrade to upgrade): ipython[all]
>>> in c:\users\ihb\appdata\local\continuum\miniconda\lib\site-packages
>>>   Exception:
>>>   Traceback (most recent call last):
>>>     File
>>> "C:\Users\ihb\AppData\Local\Continuum\Miniconda\lib\site-packages\pip\basecommand.py",
>>> line 232, in main
>>>       status = self.run(options, args)
>>>     File
>>> "C:\Users\ihb\AppData\Local\Continuum\Miniconda\lib\site-packages\pip\commands\install.py",
>>> line 339, in run
>>>       requirement_set.prepare_files(finder)
>>>     File
>>> "C:\Users\ihb\AppData\Local\Continuum\Miniconda\lib\site-packages\pip\req\req_set.py",
>>> line 436, in prepare_files
>>>       req_to_install.extras):
>>>     File
>>> "C:\Users\ihb\AppData\Local\Continuum\Miniconda\lib\site-packages\pip\_vendor\pkg_resources\__init__.py",
>>> line 2504, in requires
>>>       "%s has no such extra feature %r" % (self, ext)
>>>   UnknownExtra: ipython 2.4.1 has no such extra feature 'all'
>>> My python:
>>> Python 2.7.8 |Continuum Analytics, Inc.| (default, Jul  2 2014,
>>> 15:12:11) [MSC v.1500 64 bit (AMD64)] on win32
>>> Type "help", "copyright", "credits" or "license" for more information.
>>> Anaconda is brought to you by Continuum Analytics.
>>> Please check out: http://continuum.io/thanks and https://binstar.org
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