The default Python modules for Maya (e.g. maya.cmds, maya.OpenMaya, etc...) are not suitable for Pylint and can result in errors that are false-positives.
Examples of these errors are:
The solution for this is to use stub files for Maya's Python modules.
Download the Stub Files
Download the Maya Stub Files for Pylint zip file
Extract the zip file to a location on disk
Add the Stubs Path in CE2
Open the CE2 Preferences (Edit->Preferences) and select Pylint in the sidebar
Under Additional Pylint Paths add the path to the stubs folder
Click the OK button