title: Installing GitHub python package into Anaconda, Spyder
body: <p>I am trying to install <a href="https://github.com/esiivola/GPYgradients/tree/grad_obs.git" rel="nofollow noreferrer">https://github.com/esiivola/GPYgradients/tree/grad_obs.git</a> and use it in Anaconda's spyder. I want this version of GPy to overwrite what I install when running "pip install GPy". 
  I have tried "!pip install -e git+<a href="https://github.com/esiivola/GPYgradients/tree/grad_obs.git#egg=GPyGradient" rel="nofollow noreferrer">https://github.com/esiivola/GPYgradients/tree/grad_obs.git#egg=GPyGradient</a>" withing spyder. It gives me an error: Command "git clone -q <a href="https://github.com/esiivola/GPYgradients/tree/grad_obs.git" rel="nofollow noreferrer">https://github.com/esiivola/GPYgradients/tree/grad_obs.git</a> C:\Users...\src\gpygradient" failed with error code 128 in None. What am I doing wrong? </p>