capitalized letters

def modifydict(mydi):
    mylist=[]
    for it in mydi:
        if not it[0].isupper():
            mylist.append(it)
    print("\n\n\n")
    for i in mylist:
        if i in mydi:
            del mydi[i]
    print("\n\n\n")
    return mydi 


#my_dict = {'Joshua':'Diaddigo', 'joyner':'David', 'Elliott':'jackie', 'murrell':'marguerite'}
#print(modifydict(my_dict))