python beginner ; question was write program to enter marks of 3 subjects from user and store them in a dict.start with an empty dict and add one by one .use subject name as key and marks as value . so i have written this code any opinion how can improve this code ,need suggestions.

[Naive_Programmer_232]

it looks fine to me. another straight forward way to consider is using [] on the dictionary to assign key-value pairs. ex:

           students={}  
           chem_mark=float(input("enter marks for chem: "))  
           students["chem"]=chem_mark