Pickle in Python

Program 1

#Program for Pickle Serialization and Deserialization
import pickle,os,student
# Program for Serialization 
# try:
#     f=open("d://mydata/studentdata.txt","wb")
#     if(f.writable()):
#         rn=int(input("Enter Roll No: "))
#         nm=input("Enter Name: ")
#         pr=float(input("Enter Percentage: "))
#         s=student.Student(rn,nm,pr) 
#         pickle.dump(s,f)       #serialization 
#         print("File Created........")
#     else:
#         print("File is read only..")   
# except Exception as obj:
#     print(obj)        
# finally:
#     f.close()    

# Program for Deserialization 
try:
    if(os.path.isfile("d://mydata/studentdata.txt")):
        f=open("d://mydata/studentdata.txt","rb")
        s1=student.Student()
        s1=pickle.load(f) #Deserialization 
        s1.display()
    else:
        print("File not found")    
except Exception as obj:
    print(obj)        
finally:
    f.close()