Multilevel Inheritance

#multilevel inheritance
class Hospital:
    def __init__(self,docname,adname,sisname,docdept,addept,sisdept):
        self.docname = docname
        self.adname = adname
        self.sisname = sisname
        self.docdept =docdept
        self.addept = addept
        self.sisdept = sisdept
    def getdetails(self):
        self.docname = input("Please enter the Doctor name")
        self.adname = input("Please enter the Admin name")
        self.sisname = input("Please enter Sister Name")
        self.docdept = input("Enter Department of Doctor")
        self.addept = input("Enter  Department of Admin")
        self.sisdept = input("Enter Department of Sister ")
class Department(Hospital):
    def display(self):
        print("Doctor Name:",self.docname)
        print("Department of Doctor:", self.docdept)
        print("Admin Name:",self.adname)
        print("Department of Admin:",self.addept)
        print("Sister Name:",self.sisname)
        print("Department of Sister:",self.sisdept)
class Patientward(Department):
    def __init__(self, pname,page,pno,padd,pdis):
        self.pname =pname
        self.page = page
        self.pno = pno
        self.padd = padd
        self.pdis = pdis
    def getpatientdetails(self):
        self.pname = input("Please enter the Patient name")
        self.page = input("Please enter the Patient age")
        self.pno = input("Please enter the Patient phone number")
        self.padd = input("Please enter the Patient address")
        self.pdis = input("Please enter the Disease details")
    def displaypatientdetails(self):
        print("Patient Name:", self.pname)
        print("Patient Age:", self.page)
        print("Patient Phone Number:", self.pno)
        print("Patient Address:", self.padd)
        print("Disease Info:", self.pdis)
obj = Patientward('','','','','')
obj.getdetails()
obj.getpatientdetails()
obj.display()
obj.displaypatientdetails()