How can I uninstall a package using Monkeyrunner?

What is wrong with this scri开发者_JS百科pt?

 # Imports the monkeyrunner modules used by this program 

from com.android.monkeyrunner import MonkeyRunner, MonkeyDevice 

# Connects to the current device, returning a MonkeyDevice object 

device = MonkeyRunner.waitForConnection() 

 #Uninstall package 

 device.removePackage ('MyApp.apk')

I also tried using the path of the application and didn't work.

try this:

device.removePackage 'com.mypackage.myapp'