I'm trying to install OpenCV 3.2.0 on Anaconda3 python 3.6 on macOS 10.11.6 but I can't find a way. My Anaconda3 has python 3.5.2 installed but if I create a new virtual environment using
$ conda create -n myvenv python
then it downloads and installs python 3.6 on the new myvenv. A simple search
$ conda search opencv
opencv 2.4.8 np17py27_2 defaults
while opencv3 yields no results
$ conda search opencv3
NoPackagesFoundError: Package missing in current osx-64 channels:
- opencv3
Installing menpo opencv3 build gives following conflict:
$ conda install -c menpo opencv3
Fetching package metadata ...........
Solving package specifications: .
UnsatisfiableError: The following specifications were found to be in conflict:
- opencv3 -> python 2.7* -> openssl 1.0.1*
- python 3.6*
Use "conda info <package>" to see the dependencies for each package.
I tried to install using homebrew but linking it with Anaconda3 python3 seems difficult:
$ brew install eigen tbb
Updating Homebrew...
==> Downloading https://homebrew.bintray.com/bottles/eigen-3.3.1.el_capitan.bottle.tar.gz
100.0%
==> Pouring eigen-3.3.1.el_capitan.bottle.tar.gz
🍺 /usr/local/Cellar/eigen/3.3.1: 486 files, 6.4M
==> Downloading https://homebrew.bintray.com/bottles/tbb-4.4-20161128.el_capitan.bottle.tar.gz
100.0%
==> Pouring tbb-4.4-20161128.el_capitan.bottle.tar.gz
==> Caveats
Python modules have been installed and Homebrew's site-packages is not
in your Python sys.path, so you will not be able to import the modules
this formula installed. If you plan to develop with these modules,
please run:
mkdir -p /Users/<username>/.local/lib/python3.5/site-packages
echo 'import site; site.addsitedir("/usr/local/lib/python2.7/site-packages")' >> /Users/<username>/.local/lib/python3.5/site-packages/homebrew.pth
==> Summary
🍺 /usr/local/Cellar/tbb/4.4-20161128: 119 files, 1.9M
More info
$ conda info
Current conda install:
platform : osx-64
conda version : 4.3.8
conda is private : False
conda-env version : 4.3.8
conda-build version : 2.0.2
python version : 3.5.2.final.0
requests version : 2.12.4
root environment : /Users/<username>/anaconda3 (writable)
default environment : /Users/<username>/anaconda3/envs/lesvenv
envs directories : /Users/<username>/anaconda3/envs
package cache : /Users/<username>/anaconda3/pkgs
channel URLs : https://repo.continuum.io/pkgs/free/osx-64
https://repo.continuum.io/pkgs/free/noarch
https://repo.continuum.io/pkgs/r/osx-64
https://repo.continuum.io/pkgs/r/noarch
https://repo.continuum.io/pkgs/pro/osx-64
https://repo.continuum.io/pkgs/pro/noarch
config file : None
offline mode : False
user-agent : conda/4.3.8 requests/2.12.4 CPython/3.5.2 Darwin/15.6.0 OSX/10.11.6
UID:GID : 502:20
while coda list is:
$ conda list
packages in environment at /Users/<username>/anaconda3/envs/lesvenv:
anaconda-client 1.6.0 py36_0
clyent 1.2.2 py36_0
mkl 2017.0.1 0
numpy 1.11.3 py36_0
openssl 1.0.2j 0
pip 9.0.1 py36_1
python 3.6.0 0
python-dateutil 2.6.0 py36_0
pytz 2016.10 py36_0
pyyaml 3.12 py36_0
readline 6.2 2
requests 2.12.4 py36_0
setuptools 27.2.0 py36_0
six 1.10.0 py36_0
sqlite 3.13.0 0
tk 8.5.18 0
wheel 0.29.0 py36_0
xz 5.2.2 1
yaml 0.1.6 0
zlib 1.2.8 3
My anaconda is: /Users/<username>/anaconda3/bin/anaconda
My python 3.5.2 is: /Users/<username>/anaconda3/bin/python
My conda myvenv python 3.6 is: /Users/<username>/anaconda3/envs/myvenv/bin/python
This answer is now outdated (unless for some reason you wanted to use an older version of OpenCV) - please see this answer
The above correct answer did not work for me.
Ended up lowering the version of python until this is fixed.
conda install python=3.5
conda install -c menpo opencv3
I know this is not a permanent fix, but this works for me and you get to stay within the conda environment without doing much.
The issue is currently referenced here: https://github.com/conda/conda/issues/2448
Hope this helps!
Since you are using a newer version of python3, you would probably have to build opencv from the recipe yourself, which is available at https://github.com/conda-forge/opencv-feedstock
Another option is to have the specific version of python3 in your new environment by creating it like this:
(root) osx:Downloads nwani$ conda list | grep python
python 3.6.0 0
(root) osx:Downloads nwani$ conda create -yn opencvtest python=3.5.2
(root) osx:Downloads nwani$ source activate opencvtest
(opencvtest) osx:Downloads nwani$ conda list | grep python
python 3.5.2 0
The version 3.1.0 builds of opencv are available on the conda-forge
channel:
(root) osx:Downloads nwani$ conda search -c conda-forge --spec 'opencv=3*'
Fetching package metadata .........
opencv 3.1.0 np110py27_0 conda-forge
3.1.0 np110py34_0 conda-forge
3.1.0 np110py35_0 conda-forge
3.1.0 np111py27_0 conda-forge
3.1.0 np111py34_0 conda-forge
3.1.0 np111py35_0 conda-forge
3.1.0 np110py27_1 conda-forge
3.1.0 np110py34_1 conda-forge
3.1.0 np110py35_1 conda-forge
3.1.0 np111py27_1 conda-forge
3.1.0 np111py34_1 conda-forge
3.1.0 np111py35_1 conda-forge
You can install it like this:
(opencvtest) osx:Downloads nwani$ conda install -y -c conda-forge opencv
(opencvtest) osx:Downloads nwani$ conda list | grep -e python -e opencv
# packages in environment at /Users/nwani/Downloads/m3/envs/opencvtest:
opencv 3.1.0 np111py35_1 conda-forge
python 3.5.2 0
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