[zsh] Conditionally load python stuff

env.darwin

@@ -1,12 +1,15 @@
 # vim: set ft=zsh:
 # Eryn Wells <eryn@erynwells.me>
 
-for f in `ls "$HOME/Library/Python"`; do
-    prepend-to-path "$HOME/Library/Python/$f/bin"
-done
+pythonroot="$HOME/Library/Python"
+if [[ -d "$pythonroot" ]]; then
+    for f in `ls "$pythonroot"`; do
+        prepend-to-path "$pythonroot/$f/bin"
+    done
+fi
 prepend-to-path "/usr/local/go/bin"
 
-py27local="$HOME/Library/Python/2.7/lib/python/site-packages"
+py27local="$pythonroot/2.7/lib/python/site-packages"
 if [[ -d "$py27local" ]]; then
     if [[ ! -z $PYTHONPATH ]]; then
         PYTHONPATH=$py27local:$PYTHONPATH
@@ -15,4 +18,5 @@ if [[ -d "$py27local" ]]; then
     fi
 fi
 unset py27local
+unset pythonroot
 export PYTHONPATH