zpy: agrumentless zpy now opens shell

Author: eduard93

rtn/%ZLANGC00.xml

@@ -1,13 +1,18 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<Export generator="Cache" version="25" zv="Cache for Windows (x86-64) 2017.2 (Build 744U)" ts="2019-03-17 21:02:09">
-<Routine name="%ZLANGC00" type="MAC" languagemode="0" timestamp="65089,75025.676789"><![CDATA[
+<Export generator="Cache" version="25" zv="Cache for Windows (x86-64) 2017.2 (Build 744U)" ts="2019-03-21 15:56:04">
+<Routine name="%ZLANGC00" type="MAC" languagemode="0" timestamp="65093,57355.900954"><![CDATA[
  ; %ZLANGC00
  ; custom commands for ObjectScript
  ; https://docs.intersystems.com/latest/csp/docbook/DocBook.UI.Page.cls?KEY=GSTU_customize#GSTU_customize_zlang
   Quit    
 
 ZPY(command) Public
 	set:$namespace'="PYTHON" $namespace = "PYTHON" 
+	
+	if '$d(comand) {
+		do ##class(isc.py.util.Shell).Shell()
+		quit
+	}
 	if ((command [ "=") || (command [ " ")) {
 		set sc = ##class(isc.py.Main).SimpleString(command)
 	} else {