diff --git a/plugins/autosudo/README.md b/plugins/autosudo/README.md
new file mode 100644
index 000000000..aa0ccd00b
--- /dev/null
+++ b/plugins/autosudo/README.md
@@ -0,0 +1,8 @@
+
+Development
+============
+
+1.  virtual_env pip
+if virtual env path is writeable by user (e.g. $HOME), not need sudo. 
+export VIRTURL_ENV="path" 
+	
diff --git a/plugins/autosudo/autosudo.plugin.zsh b/plugins/autosudo/autosudo.plugin.zsh
index c04114463..e4bd76f06 100644
--- a/plugins/autosudo/autosudo.plugin.zsh
+++ b/plugins/autosudo/autosudo.plugin.zsh
@@ -16,11 +16,16 @@ function clyde() {
 	esac
 }
 
+# special: virtual_env 
 function pip() {
-	case $1 in 
-		install | uninstall ) sudo pip $* ;;
-		*)  command pip $* ;;
-	esac
+	if [[ -n ${VIRTUAL_ENV+1} && -w $VIRTUAL_ENV ]]  ; then
+		command pip $* 
+	else
+		case $1 in 
+			install | uninstall ) sudo pip $* ;;
+			*)  command pip $* ;;
+		esac
+	fi
 }
 
 function npm() {