Can you suggest clean way to represent this struct in python?
students = struct;
students(1).fname = 'john';
students(1).lname ='smith';
students(1).height = 180;
students(2).fname = 'dave';
students(2).lname = 'clinton';
students(2).height = 184;
Thanks!
In Python, you can make a class (which is a bit like a struct but with more functionality) as follows:
class Student()
def __init__(self, fname, lname, height):
self.fname = fname
self.lname = lname
self.height = height
The __init__ function describes the information required to make a new student record. The 'self' argument just tells Python that you want to set these variables on an instance (an actual student record) rather than on the class (Which is a blueprint for student records). You can then create an instance of a Student as follows:
my_student = Student('Space', 'Man', 180)
You could make many of these instances and append each to a list:
all_students = [] # An empty list
all_students.append(my_student) # using the instance we've already created
all_students.append(Student('Jingle', 'Sting', 180)) # a new instance
You can then access the items in the list as follows:
all_students[1]
By creating a class, you can also create methods which apply to all instances of Students.
class Student()
def __init__(self, fname, lname, height):
self.fname = fname
self.lname = lname
self.height = height
def get_height_in_meters(self):
return self.height / 100
And use them like this:
my_student.get_height_in_meters()
You could even string accessing student records from the list directly with methods that apply to them like so:
all_students[1].get_height_in_meters()
This can accomplished by creating a list of dictionaries as follows:
students = [
{'fname': 'john', 'lname': 'smith', 'height': 180},
{'fname': 'dave', 'lname': 'clinton', 'height': 184}
]
Then, you can get the n-th student by doing students[n] or a specific field from the n-th student by doing students[n]['fname']
Use a list of namedtuple(s):
import collections
harry = student(fname="harry", lname="Potter", height=160)
hermione = student(fname="hermione", lname="Granger", height=140)
students = [
harry,
hermione
]
print(students[0].fname)
print(students[1].fname)
