Update

.ipynb_checkpoints/OOPS-checkpoint.ipynb

@@ -195,11 +195,55 @@
    ]
   },
   {
-   "cell_type": "code",
-   "execution_count": null,
+   "cell_type": "markdown",
    "metadata": {},
-   "outputs": [],
-   "source": []
+   "source": [
+    "## Some other methods:\n",
+    "\n",
+    "1. \\_\\_repr\\_\\_ - String representation\n",
+    "2. \\_\\_cmp\\_\\_ - Compare two objects\n",
+    "3. \\_\\_len\\_\\_ - length of object\n",
+    "4. \\_\\_lt\\_\\_ - less than\n",
+    "7. \\_\\_le\\_\\_ - less than or equal\n",
+    "8. \\_\\_gt\\_\\_ - greater than\n",
+    "9. \\_\\_ge\\_\\_ - greater than or equal\n",
+    "10. \\_\\_ne\\_\\_ - not equal\n",
+    "0. \\_\\_eq\\_\\_ - equal\n",
+    "5. \\_\\_getitem\\_\\_ - get a key from a iterable\n",
+    "6. \\_\\_setitem\\_\\_ - set a value to the given key of iterable"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Private variables and methods:\n",
+    "\n",
+    "Start with \\_\\_\n",
+    "\n",
+    "E.g.: \\_\\_var, \\_\\_method\n",
+    "\n",
+    "It is advised for best programming practice to avoid calling private attributes outside the class.  \n",
+    "But if needed, use the following syntax:\n",
+    "\n",
+    "`obj._classname__attribute`"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Calling a method in another method inside the class:\n",
+    "\n",
+    "Use self keyword to call the function."
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "##"
+   ]
   }
  ],
  "metadata": {

.ipynb_checkpoints/OOPS-checkpoint.py

@@ -0,0 +1,61 @@
+class Student:
+    obj_count = 0
+    stud_list = dict()
+
+    def __init__(self, rn = 0, st_name = 'Name', *clubs): # Parametric Constructor
+        Student.obj_count += 1
+        self.roll_no = rn
+        self.name = st_name
+        self.club = clubs
+        Student.stud_list[rn] = st_name
+
+    def study(self):
+        print(f'{self.name} is Studying....')
+    def wake(self):
+        self.study()
+        return 'Woke'
+
+    def __del__(self): # destructor
+        Student.obj_count -= 1
+        Student.stud_list.pop(self.roll_no)
+
+    def __repr__(self):
+        return f'Roll no.: {self.roll_no} \nName: {self.name}\n'\
+               f'Clubs: {self.club}'
+
+    def __lt__(self, obj):
+        return self.name < obj.name
+    def __le__(self, obj):
+        return self.name <= obj.name
+    def __gt__(self, obj):
+        return self.name > obj.name
+    def __ge__(self, obj):
+        return self.name >= obj.name
+    def __ne__(self, obj):
+        return self.name != obj.name
+    def __eq__(self, obj):
+        return self.name == obj.name
+
+    def __getitem__(self, key):
+        return self.club[key-1]
+    def __setitem__(self, key, value):
+        self.club[key-1] = value
+
+    # getter
+    @property
+    def roll_no(self):
+        #print('Getter called')
+        return self.__roll_no
+
+    #setter
+    @roll_no.setter
+    def roll_no(self, rn):
+        #print('Setter called')
+        self.__roll_no = rn
+
+
+
+
+# Object 1
+st1 = Student(1, 'Prabhu', 'Coding Club', 'Robotics Club')
+print(st1.wake())

OOPS.ipynb

@@ -194,6 +194,64 @@
     "Use \\_\\_del\\_\\_ method"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Some other methods:\n",
+    "\n",
+    "1. \\_\\_repr\\_\\_ - String representation\n",
+    "2. \\_\\_cmp\\_\\_ - Compare two objects\n",
+    "3. \\_\\_len\\_\\_ - length of object\n",
+    "4. \\_\\_lt\\_\\_ - less than\n",
+    "7. \\_\\_le\\_\\_ - less than or equal\n",
+    "8. \\_\\_gt\\_\\_ - greater than\n",
+    "9. \\_\\_ge\\_\\_ - greater than or equal\n",
+    "10. \\_\\_ne\\_\\_ - not equal\n",
+    "0. \\_\\_eq\\_\\_ - equal\n",
+    "5. \\_\\_getitem\\_\\_ - get a key from a iterable\n",
+    "6. \\_\\_setitem\\_\\_ - set a value to the given key of iterable"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Private variables and methods:\n",
+    "\n",
+    "Start with \\_\\_\n",
+    "\n",
+    "E.g.: \\_\\_var, \\_\\_method\n",
+    "\n",
+    "It is advised for best programming practice to avoid calling private attributes outside the class.  \n",
+    "But if needed, use the following syntax:\n",
+    "\n",
+    "`obj._classname__attribute`"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Calling a method in another method inside the class:\n",
+    "\n",
+    "Use self keyword to call the function."
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Definining run time class attributes:"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Methods of attributes:"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,

OOPS.py

@@ -2,47 +2,60 @@ class Student:
     obj_count = 0
     stud_list = dict()
 
-    def __init__(self, rn =0, st_name = 'Name'): # Parametric Constructor
+    def __init__(self, rn = 0, st_name = 'Name', *clubs): # Parametric Constructor
         Student.obj_count += 1
         self.roll_no = rn
         self.name = st_name
-        stud_list[rn] = st_name
+        self.club = clubs
+        Student.stud_list[rn] = st_name
 
     def study(self):
         print(f'{self.name} is Studying....')
+    def wake(self):
+        self.study()
+        return 'Woke'
 
     def __del__(self): # destructor
         Student.obj_count -= 1
+        Student.stud_list.pop(self.roll_no)
 
+    def __repr__(self):
+        return f'Roll no.: {self.roll_no} \nName: {self.name}\n'\
+               f'Clubs: {self.club}'
+
+    def __lt__(self, obj):
+        return self.name < obj.name
+    def __le__(self, obj):
+        return self.name <= obj.name
+    def __gt__(self, obj):
+        return self.name > obj.name
+    def __ge__(self, obj):
+        return self.name >= obj.name
+    def __ne__(self, obj):
+        return self.name != obj.name
+    def __eq__(self, obj):
+        return self.name == obj.name
+
+    def __getitem__(self, key):
+        return self.club[key-1]
+    def __setitem__(self, key, value):
+        self.club[key-1] = value
+
+    # getter
     @property
     def roll_no(self):
-        print('Getter called')
-        return f'Roll no: {self._roll_no}'
+        #print('Getter called')
+        return self.__roll_no
 
+    #setter
     @roll_no.setter
     def roll_no(self, rn):
-        print('Setter called')
-        self._roll_no = rn
+        #print('Setter called')
+        self.__roll_no = rn
 
 
 
 
 # Object 1
-st1 = Student(1, 'Prabhu')
-print(st1.roll_no)
-print(st1.name)
-
-print()
-
-#Object 2
-
-st2 = Student(2, 'Ani')
-print(st2.roll_no)
-print(st2.name)
-print()
-print(Student.obj_count)
-print()
-
-del st2
-print(Student.obj_count)
-
+st1 = Student(1, 'Prabhu', 'Coding Club', 'Robotics Club')
+print(st1.wake())