The Dictionary class in Python provide an update() function that allows you to merge two dictionaries.
For example:
employeeScore = { 'Emp1':100, 'Emp2':98, 'Emp3':96}employee2019Score= { 'Emp1':101, 'Emp2':104}
To merge, just use:
employeeScore.update(employee2019Score)
The contents of the employeeScore dictionary would be:
employeeScore = { 'Emp1':101, 'Emp2':104, 'Emp3':96}