Merge pull request #25 from groundlight/add-python3-dev

Add python3-dev to enable new version of framegrab

stage-gl1/00-install-packages/00-packages

@@ -1,7 +1,7 @@
 # Absolute basics
 python3 python-is-python3
 
-# we don't install things like python3-pip or many libraries here, because pip and apt don't 
+# We don't install things like python3-pip or many libraries here, because pip and apt don't 
 # get along, so we'll set up a venv later.
 
 # We'll set up a venv to get around this.
@@ -10,6 +10,10 @@ python3-venv
 # We do install OS's opencv to make sure all the .so files are available.
 python3-opencv
 
+# We need to make sure to install this before framegrab -- required to install the netifaces 
+# package.   In general, python packages which build C code need this to install even through pip
+python3-dev
+
 # Some nice-to-have utilities
 iotop nethogs net-tools telnet
 git curl wget