# get all keys that have a 'True' value

d={}

d['Mike']=True

d['Antje']=True

d['Johnny']=False

[key for key, val in d.items() if val]

['Antje', 'Mike']

# get all keys of same value

# get all people born in 1987

d={}

d['Antje']=1987

d['Mike']=1983

d['Johnny']=1987

[key for key, val in d.items() if val==1987]

['Antje', 'Johnny']

# get all keys

sorted(d.keys())

['Antje', 'Johnny', 'Mike']

# get all values (can include non-unique values, for example: '1987')

sorted([val for key, val in d.items()])

[1983, 1987, 1987]