Installation: Prerequisites

The following items are required to install CoG for developmental purposes:

  • A system running a *-nix operating system, including Cent-OS, Linux and MacOSX

Step 1: Install Python

  • Install Anaconda

  • 2.7.10 does not work with cog, you will need to downgrade

#downgrade python install conda install
conda install python=2.7.9
  • Python setup_tools (should come with python)

Step 2: Install Postgres

Step 3: Set up git and github

git config –global “username”

git config –global email “email”

Step 4: Update pip

pip install -U pip

Step 5: Install virtualenv

pip install virtualenv

Step 6: (CentOS only) Install C-headers for sqlite-devel and freetype-devel

yum install sqlite-devel freetype-devel

Step 7: (MacOSX only) Copy image libraries

  • Ensure the following libraries are located in /usr/local/lib (copy from anaconda lib…requires sudo)

    • libcrypto.1.0.0.dylib

    • libjpeg.8.dylib

    • libssl.1.0.0.dylib

    • libtiff.5.dylib

# example
sudo cp ~/anaconda/lib/libtiff.5.dylib /usr/local/lib

Step 8: Install Xcode command line tools

xcode-select –install

Step 9: Manually install Pillow

  • Normally Pillow is automatically installed via the /cog_install/ script

  • Modify this file and comment out that installation, and install manually

  • wheel may be required in the install

pip install wheel
pip install –use-wheel Pillow==2.8.2
#note 3.1.0 does not install w/o jpeg support, may cause install to fail