Why the elif condition throws expected expression error in Python?

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I am trying to add,update,delete data in json file. Therefore i am using if elif else statement for the put conditions, but in elif ladder a syntax error is shown at elif : expected expression. I am also using if with elif block for another condition for different function. How to solve this ?

What I have tried:

import json

print("Manage Employee Detail: ")
print("(a) for Add")
print("(u) for Update")
print("(d) for Delete")
Choice = (input("Enter Your choice: "))


if (Choice=="a") :
emp_dic =[{
"name" : input("Enter employee name : "),
"emp_id" : "2022-001",
"city" : input ("Enter city : "),
"experience" : int(input("Enter experience :")),
"ctc" : int(input("Enter CTC : ")),
"age" : int(input("Enter age : ")),
"contact" : int(input("Enter contact : "))
}]
with open ("emp.json","r") as file:
dic=json.load(file)

dic.append(emp_dic)

with open("emp.json","w") as file:
json.dump(dic, file , indent=4)
print(dic)

elif Choice=="u" :
print(dic)
enter_id = input("Enter emp_id you want to update: ")
jsonfile=open("emp.json","r")
data=json.load(jsonfile)
jsonfile.close()
if enter_id=="emp_id":
data["name"] = input("Enter employee name : ")
data["emp_id"] = "2022-001"
data["city"] = input ("Enter city : ")
data["experience"]= int(input("Enter experience :"))
data["ctc"] = int(input("Enter CTC : "))
data["age"] = int(input("Enter age : "))
data["contact"] = int(input("Enter contact : "))

jsonfile =open("emp.json", "w")
json.dump(data, jsonfile, indent=4)


elif Choice == "d":
def delete():
print(dic)
enter_id = input("Enter emp_id you want to delete: ")
jsonfile=open("emp.json","r")
data=json.load(jsonfile)
jsonfile.close()
if enter_id=="emp_id":
del data[enter_id]


else:
print("invalid input: ")