Try to build python and anaconda environment on Mac (by pyenv, conda)

As a memo in studying python

pyenv-Do not use virtualenv. (I tried to use it, but it didn't work) Write in the direction of switching the environment with conda. Since activate seems to be covered with pyenv, write in the direction of specifying activate of anaconda with the full path.

I was allowed to refer to this. http://qiita.com/y__sama/items/f732bb7bec2bff355b69

environment

Mac OS X El Capitan python 3.5.2 anaconda 4.3

1. Install pyenv and anaconda

・ Installation of pyenv

(1) With homebrew or git

brew install pyenv

or

git clone https://github.com/yyuu/pyenv.git ~/.pyenv

(2) Add settings to .bash_profile (.bashrc)

echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.bash_profile
echo 'export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.bash_profile
echo 'eval "$(pyenv init -)"' >> ~/.bash_profile

(3) Reread

source .bash_profile

・ Installation of anaconda

(1) Check the installable version of anaconda

pyenv install -l

(2) Anaconda installation

In the case of 3 system

pyenv install anaconda3-4.2.0

In the case of 2 system

pyenv install anaconda2-4.2.0

2. Build a virtual environment with conda and switch the environment with activate

(1) Switch the anaconda environment to global

pyenv global anaconda3-4.2.0

(2) Create a virtual environment with conda

conda create --name py3.5 python=3.5 anaconda

I couldn't do it without specifying the python version. Also, if you want to include the anaconda environment, you need "anaconda" after it.

(3) Move to the working folder and execute pyenv local

cd anaconda_sample
pyenv local anaconda3-4.2.0/envs/py3.5

(4) Return global to system (optional)

pyenv global system

(5) Activate and switch the environment

source $PYENV_ROOT/versions/anaconda3-4.2.0/bin/activate py3.5

Check python and anaconda versions

python -V
Python 3.5.2 :: Anaconda 4.3.0 (x86_64)

Try starting jupyter notebook (optional)

jupyter notebook

If you can start jupyter in your browser, it's OK (you should be able to start it because you also included anaconda)

(6) Deactivate the environment with deactivate

source $PYENV_ROOT/versions/anaconda3-4.2.0/bin/deactivate py3.5

(7) When switching the environment again, enter the working folder and activate

cd anaconda_sample
source $PYENV_ROOT/versions/anaconda3-4.2.0/bin/activate py3.5

3. (Bonus) Installation of ansible

I am building a development environment with ansible, so install it up to that point The environment is as follows. Python 2.7.13 Anaconda 4.3.0 ansible 2.2.1.0

(1) Anaconda installation (2 series)

pyenv install anaconda2-4.2.0

(2) Switch the anaconda environment to global

pyenv global anaconda2-4.2.0

(3) Create a virtual environment with conda

conda create --name ansible python=2.7 anaconda

You may not need to use "anaconda" at the back only with ansible. I put it on for the time being.

(4) Move to the working folder and execute pyenv local

cd anaconda_ansible
pyenv local anaconda2-4.2.0/envs/ansible

(5)activate

source $PYENV_ROOT/versions/anaconda2-4.2.0/bin/activate ansible

Check python and anaconda versions

python -V
Python 2.7.13 :: Anaconda 4.3.0 (x86_64)

(6) Install ansible with pip

pip install ansible

If you want to manage ansible with conda, refer to the URL below http://stangler.hatenablog.com/entry/2016/10/11/171115

Check the version of ansible

ansible --version
ansible 2.2.1.0

• I tried to create ansible environment of CentOS, Apache, PHP, MySQL above, but it was okay.

Impressions

The syntax for activate is a bit long, so please let me know if there is any better way. (I wonder if you should add an alias ...) I've been studying a lot with this for a while!