IA 2022-11-02

# 1.py
# let us understand OOP in Python
# a bit of numpy and its "choice" function

import numpy as np

class MyDataTypeForPlayingWithRandomness:

    def __init__(
        self,
        pName="Default name",
        pColOfThings:list=[]
    ):
        # pass # no initialization
        self.mName = pName
        self.mCol = pColOfThings
    # def __init__

    def __str__(self):
        memoryCell = id(self)
        strMsg = "-"*60+"\n"
        strMsg += f"My name is {self.mName}\n"
        strMsg += "Hello, I am an object of data type MyDataTypeForPlayingWithRandomness\n"
        strMsg += f"I live at memory cell {memoryCell}\n"
        strMsg += f"My collection is: {self.mCol}\n"
        return strMsg
    # def __str__

    def someNormalBehavior(self):
        print(f"Hello from {self.mName}")
    # def someNormalBehavior

    def getRandomEntryFromTheCollection(self):
        somethingRandom = np.random.choice(
            self.mCol
        )
        return somethingRandom
    # def getRandomEntryFromTheCollection

# class MyDataTypeForPlayingWithRandomness

r1 = MyDataTypeForPlayingWithRandomness("R ONE")

print(r1) # to request NO behavior
# equivalent
print(r1.__str__()) # is to request the "to string" behavior

r2 = MyDataTypeForPlayingWithRandomness("R TWO")
print(r2)

r3 = MyDataTypeForPlayingWithRandomness()
print(r3)

r3 = MyDataTypeForPlayingWithRandomness("XPTO")
print(r3)

r1.someNormalBehavior()

r4 = MyDataTypeForPlayingWithRandomness(
    "The one who has a collection",
    [10, 20, 30]
)
print (r4.getRandomEntryFromTheCollection())

r5 = MyDataTypeForPlayingWithRandomness(
    "The fruit collector",
    ["banana", "strawberry", "peaches", "watermelon"]
)
print("A random fruit: "+\
      r5.getRandomEntryFromTheCollection()
      )