Custom data structure

[icm63]

New to python, from .Net. I know python does not support arrays.

This class

class myStructure:
    """ My custom data structure for arrays """

    def __init__(self, date1=dt.datetime(2000,12,31), num1=0, str1="Nothing"):
        self.date1 = date1
        self.num1 = num1
        self.str1 = str1

I can do this ONCE

# Class Instance
res = my.myStructure()
res.str1 = "Yes"
res.num1 = 50
res.date1 = my.dt.datetime.strptime("05/01/1950","%m/%d/%Y")

Question: How can I use myStructure to store many records of data (like an array), or may be I cant?
Can I convert my class structure into a dictionary or something ??

Please advise