Want to make dictionary key inputted by user in a python function argument

Question

def build_profile(f_name,l_name,**qualification):
    profile={}
    profile['first']=f_name
    profile['last']=l_name
    for k,v in qualification.items():
        profile[k]=v
    return profile
pl=[]
while True:
    pl.append(build_profile(input("Enter first name: "),\
    input("Enter last name:"),graduation=input("Enter Subject:"),\
    masters=input("Enter Subject:")))
    if input("Want to finish?(Y/N) ").upper()=="Y":
        break
print(pl)

The given function accepts user input values for 'graduation' and 'masters' key but I was thinking that for different users level of education might be different some might be PHD and some might not have even completed High school. I tried to convert the key values for the dictionary 'qualification' to be input by user but whenever i convert

graduation=input("Enter Subject:")

to

input("Enter value:")=input("Enter Subject:")

I get an error "Keyword can't be an expression". On searching internet i knew about split() function in python can accomplish it but I was not able to make it work in my code.

#SOLVED Based on answers I modified my code as below and now its working as i desired:

def build_profile(f_name,l_name,qualification):
    profile={}
    profile['first']=f_name
    profile['last']=l_name
    for k,v in qualification.items():
        profile[k]=v
    return profile
pl=[]
while True:
    first_name=input("first name: ")
    last_name=input("last name: ")
    no_of_qual=int(input("How many qualification you want to add?"))
    dict_qual={}
    for qual in range(no_of_qual):
        dict_qual[input("Enter subject")]=input("Enter qualification")
    inv_qual = {v: k for k, v in dict_qual.items()}
    pl.append(build_profile(first_name,last_name,inv_qual))
    if input("Want to add more users?(Y/N) ").upper()=="N":
        break
print(pl)

Answer 1

You're trying to use a string as an argument name which is not possible. It would probably be better to input an actual dictionary than use an ** argument:

def build_profile(f_name: str, l_name: str, qualification: dict) -> dict:
    return {'first': f_name, 'last': l_name, **qualification}

pl=[]

while True:
    pl.append(build_profile(input("Enter first name: "), \
                            input("Enter last name: "), \
                            {input("Enter value: "):input("Enter subject: ")}))
    if input("Want to finish? (Y/N) ").upper() == "Y":
        break

print(pl)

It asks for a value, then a subject (only once).