Mac-mini-de-Dirceu:site-packages dirceusilva$ workon facecourse-p圓 (facecourse-py2) Mac-mini-de-Dirceu:site-packages dirceusilva$ deactivate (facecourse-py2) Mac-mini-de-Dirceu:site-packages dirceusilva$ python -c “import numpy print(numpy._version_) print(numpy._file_)” Mac-mini-de-Dirceu:site-packages dirceusilva$ workon facecourse-py2 Users/dirceusilva/.virtualenvs/facecourse-p圓/lib/python3.6/site-packages/numpy/_init_.py Mac-mini-de-Dirceu:site-packages dirceusilva$ python3 -c “import numpy print(numpy._version_) print(numpy._file_)” If you’re working with a numpy git repo, try `git clean -xdf` (removes allįiles not under version control). Likely you are trying to import a failed build of numpy. Importing the multiarray numpy extension module failed. Mac-mini-de-Dirceu:site-packages dirceusilva$ python -c “import numpy print(numpy._version_) print(numpy._file_)”įile “numpy/lib/type_check.py”, line 11, inįile “numpy/core/_init_.py”, line 24, in Mac-mini-de-Dirceu:site-packages dirceusilva$ brew list numpy So if you don’t have Python 3 installed, Homebrew will install it while installing opencv. Homebrew has also made it compulsory to compile and install Python bindings for both Python 2 and Python 3. Various options such as –with-qt, –with-tbb etc are also removed in the updated formula and CUDA support is also dropped. They have now renamed opencv3 to opencv and opencv to Note: Homebrew recently moved many popular formulae to homebrew-core.Įarlier you can install OpenCV 2 using formula name opencv and OpenCV 3 using formula name opencv3. Step 5: Install OpenCV Step 5.1 : Compile & Install OpenCV Pip install numpy scipy matplotlib scikit-image scikit-learn ipython pandas # Now install python libraries within this virtual environment If you find this annoying and want to use command python to run python2, add following line to ~/.bash_profile.Įcho "VIRTUALENVWRAPPER_PYTHON=/usr/local/bin/python2" > ~/.bash_profileĮcho "source /usr/local/bin/virtualenvwrapper.sh" > ~/.bash_profile To run python scripts you should run command python2 and python3 for Python 2 & 3 respectively. We want to use Python installed by Homebrew because it makes installing/managing packages easier. This is the python distribution which comes with your OS and not installed by Homebrew.
Install python2 at /usr/local/bin/python2.Earlier homebrew used to install python2 as /usr/local/bin/python.
NOTE : Recently Homebrew made some changes in Python formula. Python version (2.6 or 2.7, 3.5 or 3.6) installed on your machine is required to determine path of Python’s site-packages. Which python3 # it should output /usr/local/bin/python3 Which python2 # it should output /usr/local/bin/python2 # Check whether Python using homebrew install correctly
#WHERE SHOULD I INSTALL PYTHON ON MAC UPGRADE#
# Upgrade the python using new homebrew formulae. # NOTE : If you have python already installed using homebrew, # else skip the 3 lines below and upgrade. # If installing python for the first time using Homebrew,
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