#5681 auto resolve python3 binary if available

lib/Common.js

@@ -447,6 +447,16 @@ Common.sink.resolveInterpreter = function(app) {
   // No interpreter defined and correspondance in schema hashmap
   if (noInterpreter && betterInterpreter) {
     app.exec_interpreter = betterInterpreter;
+
+    if (betterInterpreter == "python") {
+      if (which('python') == null)
+        if (which('python3') == null) {
+          Common.printError(cst.PREFIX_MSG_WARNING + chalk.bold.yellow('python and python3 binaries not available in PATH'));
+        }
+      else {
+        app.exec_interpreter = 'python3';
+      }
+    }
   }
   // Else if no Interpreter detect if process is binary
   else if (noInterpreter)

test/e2e/cli/cli-actions-2.sh

@@ -138,14 +138,14 @@ spec "stderr cb written"
 
 $pm2 delete all
 
-# ## #2350 verify all script have been killed
-# $pm2 start python-script.py
-# $pm2 start echo.js
-# should 'should app be online' 'online' 2
+## #2350 verify all script have been killed
+$pm2 start python-script.py
+$pm2 start echo.js
+should 'should app be online' 'online' 2
 
-# kill `cat ~/.pm2/pm2.pid`
-# spec "should have killed pm2"
+kill `cat ~/.pm2/pm2.pid`
+spec "should have killed pm2"
 
-# sleep 3
-# pgrep "python"
-# ispec "should python script be killed"
+sleep 3
+pgrep "python"
+ispec "should python script be killed"

test/fixtures/python-script.py

@@ -2,5 +2,5 @@
 
 if __name__ == "__main__":
     while 1:
-        print 'Script.py: alive'
+        print('Script.py: alive')
         time.sleep(1)