use virtualenv on archlinux, too

zshrc.local

@@ -2,13 +2,19 @@ setopt vi
 bindkey '\e.' insert-last-word #alt . working in vim mode
 export TERM="screen-256color"
 
-if [ -e "/usr/local/bin/virtualenvwrapper.sh" ]; then
-    source /usr/local/bin/virtualenvwrapper.sh
-fi
 export WORKON_HOME=~/.envs
 
 if which apt-get 2>&1 >/dev/null; then
     alias ack=ack-grep
+    if [ -e "/usr/local/bin/virtualenvwrapper.sh" ]; then
+        source /usr/local/bin/virtualenvwrapper.sh
+    fi
+fi
+
+if which pacman 2>&1 >/dev/null; then
+    if [ -e "/usr/bin/virtualenvwrapper.sh" ]; then
+        source /usr/bin/virtualenvwrapper.sh
+    fi
 fi
 
 # autostart tmux