-Flask is a Python framework
--Install Python --Install from pyenv. --Install Flask
pyenv install
git clone https://github.com/yyuu/pyenv.git ~/.pyenv
$ vi .bash_profile
export PYENV_ROOT=$HOME/.pyenv
export PATH=$PYENV_ROOT/bin:$PATH
eval "$(pyenv init -)"
$ pyenv install --list
$ pyenv install your-version
yum -y install gcc
pip x.x.x requires SSL/TLS
#This solves
yum install openssl-devel
pyenv install 3.5.0
pyenv global 3.5.0
--There are 3 weeks of shell / local / global for version specification. Each scope is different.
Flask install
pip install --upgrade Flask
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