DOC simplify setup on google colab (#8)

Author: mvdoc

tutorials/movies_3T/00_load_colab.py

@@ -8,7 +8,7 @@
 skip it if you run the tutorials on your machine.
 """
 # sphinx_gallery_thumbnail_path = "static/colab.png"
-
+#
 ###############################################################################
 # Change runtime to use a GPU
 # ---------------------------
@@ -20,54 +20,23 @@
 # (Menu) "Runtime" -> "Change runtime type" -> "Hardware accelerator" -> "GPU".
 
 ###############################################################################
-# Mount data with Google Drive
-# ----------------------------
-#
-# First, open the following Google Drive link:
-# https://drive.google.com/drive/folders/1NuxO5_GHgDvjrL2FX5ohzAsvWpZuepIA
+# Download the data and install all required dependencies
+# -------------------------------------------------------
 #
-# Then, click on the directory name ("vim-5"), and add a shortcut to your Drive
-# ("Add shortcut to Drive"). Place the shortcut in the main directory of your
-# Google Drive. Do not place it in another folder, or you will have to change 
-# the code to update the location of the dataset.
-#
-# Finally, mount Google Drive in Google Colab. To do so, run the following cell,
-# and follow the instructions from Google to copy/paste the authorization code.
+# Uncomment and run the following cell to download the tutorial data and
+# install the required dependencies
 
-from google.colab import drive
-drive.mount("/content/drive")
+# !gdown --id 1b0I0Ytj06m6GCmfxfNrZuyF97fDo3NZb && \
+# tar xzf vim-5-for-ccn.tar.gz && \
+# pip install -q voxelwise_tutorials && \
+# git clone https://github.com/gallantlab/pycortex
 
 ###############################################################################
-# Uncomment and run the following command to check that Google Drive was
-# correctly mounted.
-
-# !ls drive/MyDrive/vim-5
-
-###############################################################################
-# Tell the voxelwise_tutorials package where the data is. (If you placed the
-# shortcut in a different location than the main directory of your Google
-# Drive, change this code to point to the correct location.)
-
+# Now run the following cell to set up the environment variables for the tutorials
+# and pycortex.
+ 
 import os
-os.environ['VOXELWISE_TUTORIALS_DATA'] = "drive/MyDrive/"
-
-###############################################################################
-# Install package helper
-# ----------------------
-#
-# Finally, install the tutorial helper package, by uncommenting and running
-# the install command.
-
-# !pip install voxelwise_tutorials
-
-###############################################################################
-# When using Colab, the install of pycortex might fail to locate the default
-# pycortex filestore. Uncomment and run the following line to fix it:
-
-# !git clone https://github.com/gallantlab/pycortex
-
-###############################################################################
-# Now change the pycortex filestore path.
+os.environ['VOXELWISE_TUTORIALS_DATA'] = "/content"
 
 import cortex
 filestore = "/content/pycortex/filestore/"