[Matplotlib-devel] step-by-step to installling from source using conda?
Chris Barker - NOAA Federal
chris.barker at noaa.gov
Sun Aug 6 16:18:53 EDT 2017
That's what I do, also. For the installation from source I now use either
"pip install ." or "pip install -e .".
-e for development for sure. But pip will try to bring in missing
dependencies for you, which is less than ideal if you don't want a
conda-pip jumble.
I think pip -e has a --no-deps flag, or something like that, which is
useful.
On 2017/08/05 1:27 PM, Thomas Caswell wrote:
I sometimes take a blunter approach, install Matplotlib via conda and then
uninstall it which leaves behind the dependencies ;)
D-uh! I should have thought of that!
That may not get you all the build deps but it will be close.
Oh, and taking a look at the Vonda recipe would be a better way to get the
deps list:
https://github.com/conda-forge/matplotlib-feedstock/blob/master/recipe/meta.yaml
-CHB
Tom
On Sat, Aug 5, 2017 at 5:33 PM Klymak Jody <jklymak at uvic.ca <
mailto:jklymak at uvic.ca <jklymak at uvic.ca>>> wrote:
Hi Chris. Thanks so much. That'll be useful
I think I was partially tricked by the fact that %matplotlib
notebook wasn't working for master in a Jupiter notebook. but I
see now that it doesn't wrk for anyone so I guess I was installing
things adequately ;-)
Thanks again. Jody
Sent from my iPhone
On Aug 5, 2017, at 14:22, Chris Barker <chris.barker at noaa.gov
<mailto:chris.barker at noaa.gov <chris.barker at noaa.gov>>> wrote:
This should be pretty straightforward, but MPL's dependencie are
pretty complex. IN thoery, simplyL
1) create an environment
2) install the dev dependencies
3) build away.
but in fact, step (2) there is not so straightforward, so here we
go...
1) I recommend using conda-forge as a source of packages -- it is
more up to date than defaults, and you are developing....
conda config --add channels conda-forge
2) create an environment for doing your development:
conda create -n mpl-dev python=3
3) activate that environment:
source activate mpl-dev
4) install the requirements of mpl:
OK -- this one is kinda messy for MPL. It has a lot of
requirements that depend someone on which sub-packages you are
going to build.
but first you need pk-config, which MPL used to find/configure
stuff on *nix systems.
(you may have this from Brew already)
conda install pkg-config
python setup.py --requires doesn't work, as mpl does a lot of
ative configuration.
but:
python ./setup.py dry-run
will get you a good list:
REQUIRED DEPENDENCIES AND EXTENSIONS
numpy: yes [not found. pip may install it below.]
six: yes [six was not found.pip will attempt to
install
it after matplotlib.]
dateutil: yes [dateutil was not found. It is
required for date
axis support. pip/easy_install may attempt to
install it after matplotlib.]
backports.functools_lru_cache: yes [Not required]
subprocess32: yes [Not required]
pytz: yes [pytz was not found. pip/easy_install may
attempt to install it after matplotlib.]
cycler: yes [cycler was not found.
pip/easy_install may
attempt to install it after matplotlib.]
tornado: yes [tornado was not found. It is required
for the
WebAgg backend. pip/easy_install may
attempt to
install it after matplotlib.]
pyparsing: yes [pyparsing was not found. It is
required for
mathtext support. pip/easy_install may
attempt to
install it after matplotlib.]
libagg: yes [pkg-config information for 'libagg'
could not
be found. Using local copy.]
freetype: no [The C/C++ header for freetype2
(ft2build.h)
could not be found. You may need to
install the
development package.]
png: yes [version 1.6.26]
qhull: yes [pkg-config information for 'libqhull'
could not
be found. Using local copy.]
you don't want pip to try to install anything, so I created a
requirements file (enclosed)
conda install --file conda_requirements_dev.txt
And now you should be able to build!
python setup.py build
Note that you won't get all the back-ends -- other dependencies
need to be installed for that.
BTW: it would be nice to have something like that
conda_requirements_dev.txt in the MPL repo -- the setup-tools
stuff is way to tied into the build/packaging/installing system.
HTH,
-CHB
On Tue, Jun 13, 2017 at 6:24 AM, Jody Klymak <jklymak at gmail.com
<mailto:jklymak at gmail.com <jklymak at gmail.com>>> wrote:
Hi all,
I’m somewhat stymied trying to understand how to install
matplotlib in a development environment using conda.
I have MacOS, and I have brew gcc etc. I know how to set up a
env in conda.
I eventually want to be able to run the tests, so that I can
stop uploading things with PEP8 errors etc.
Sorry if this is too vague. I can start over again and send
specific errors if that is easier, but I would bet someone has
a step-by-step.
Thanks, Jody
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