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Some test code of tensorflow, include variable tensorflow versions
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#1 How to install with virtualenv
    (1) For Mac
    sudo easy_install pip
    sudo pip install --upgrade virtualenv
    virtualenv --system-site-packages targetDirectory # for Python 2.7
    virtualenv --system-site-packages -p python3 targetDirectory # for Python 3.n
    source ~/tensorflow/bin/activate      # If using bash, sh, ksh, or zsh
    source ~/tensorflow/bin/activate.csh  # If using csh or tcsh
    pip install --upgrade tensorflow      # for Python 2.7
    pip3 install --upgrade tensorflow     # for Python 3.n
    Or use Binary URL
    (2) For Ubuntu with virtualenv
    sudo apt-get install python-pip python-dev python-virtualenv # for Python 2.7
    sudo apt-get install python3-pip python3-dev python-virtualenv # for Python 3.n
    virtualenv --system-site-packages targetDirectory # for Python 2.7
    virtualenv --system-site-packages -p python3 targetDirectory # for Python 3.n
    source ~/tensorflow/bin/activate # bash, sh, ksh, or zsh
    source ~/tensorflow/bin/activate.csh  # csh or tcsh
    pip install --upgrade tensorflow      # for Python 2.7
    pip3 install --upgrade tensorflow     # for Python 3.n
    pip install --upgrade tensorflow-gpu  # for Python 2.7 and GPU
    pip3 install --upgrade tensorflow-gpu # for Python 3.n and GPU
    Or use Binard Url

    (3) For specific
    curl -s https://storage.googleapis.com/tensorflow |xmllint --format - |grep whl
    TF_BINARY_URL=https://storage.googleapis.com/tensorflow/mac/cpu/tensorflow-some-version.whl
    pip3 install --upgrade $TF_BINARY_URL
#2 Solve the SSE4 problem
    https://github.com/lakshayg/tensorflow-build