Finding matching keys in two large dictionaries and doing it fast

Question

I am trying to find corresponding keys in two different dictionaries. Each has about 600k entries.

Say for example:

    myRDP = { \'Actinobacter\':          


        

Answer 1

Use the get method instead:

 for key in myRDP:
    value = myNames.get(key)
    if value != None:
      print key, "=", value