Python

Author: vishalsiingh

day38(classes and objects).py

@@ -3,7 +3,7 @@ class person:
     roll=3215
     cgpa=9.0
     def info(self):
-        print(f"{self.name} have {self.cgpa}")
+        print(f"{self.name} have {self.cgpa}") # self mtlb wo object jiske liye ye method call kiya ja rra h 
 a=person() #objects h 
 b=person()
 a.name="Kashyap"
@@ -12,4 +12,4 @@ def info(self):
 b.name="ALien"
 b.cgpa=8
 a.info() # method call kra rhe h 
-b.info()
+b.info()  #

day39(constructor).py

@@ -3,13 +3,14 @@ class person():
     # name="Vishal"
     # roll=3215
     # cgpa=9.0
-    def __init__(self,Name,roll):  #constructor baabne ka tarika 
+    def __init__(self,Name,roll):  #constructor baabne ka tarika   
+                                   #value initaize karata h and alwys returns none
         print("i m lazy coder")
         self.name="Name"
-        self.roll="roll"
+        self.roll="roll"#parametrized constructor
 
     def info(self):
-        print(f"{self.name} have {self.roll}")
+        print(f"{self.name} have {self.roll}") # default constructor
 a=person("Vishal",9.0) #objects h 
 b=person("alien",9.5)
 a.info()

day40(decorators).py

@@ -0,0 +1,23 @@
+# ek function h dusra funnction leta h usko kuch change kr ke reurn kr deta h 
+
+def greet(fx):
+    def mfx(*args,**kwargs):    # *args ---arguments leta h as a tuple
+                             # **kwargs --- arguments leta h as a dictonary
+        print("good morning")
+        fx(*args,**kwargs)
+        print("thanks for using thus function ")
+    return mfx
+
+@greet
+
+def hello():
+    print("heloo ji")
+
+hello()
+# greet (hello)()
+@greet
+def add(a,b):
+    print(a+b)
+# add()
+
+greet (add)(1,2)

day41(decor2).py

@@ -0,0 +1,13 @@
+import logging
+
+def log_function_call(func):
+    def decorated(*args, **kwargs):
+        logging.info(f"Calling {func.__name__} with args={args}, kwargs={kwargs}")
+        result = func(*args, **kwargs)
+        logging.info(f"{func.__name__} returned {result}")
+        return result
+    return decorated
+
+@log_function_call
+def my_function(a, b):
+    return a + b

day42(getters setters).py

@@ -0,0 +1,40 @@
+class Person:
+    def __init__(self, name, age):
+        self._name = name
+        self._age = age
+
+    # Getter method for getting the name attribute
+    def get_name(self):
+        return self._name
+
+    # Setter method for setting the name attribute
+    def set_name(self, name):
+        self._name = name
+
+    # Getter method for getting the age attribute
+    def get_age(self):
+        return self._age
+
+    # Setter method for setting the age attribute
+    def set_age(self, age):
+        if age > 0:
+            self._age = age
+        else:
+            print("Age must be a positive number.")
+
+# Creating an instance of the Person class
+person = Person("Alice", 30)
+
+# Using the getter method to get the name attribute
+print(person.get_name())  # Output: Alice
+
+# Using the setter method to set the name attribute
+person.set_name("Bob")
+print(person.get_name())  # Output: Bob
+
+# Using the setter method to set the age attribute with an invalid value (negative number)
+person.set_age(-5)  # Output: Age must be a positive number.
+
+# Using the setter method to set the age attribute with a valid value
+person.set_age(35)
+print(person.get_age())  # Output: 35

day43(inheritance).py

@@ -0,0 +1,17 @@
+class Employee:
+    def __init__(self,name,id):
+        self.name="name"
+        self.id=id
+
+    def show(self):
+        print(f"The employee having {self.id} is {self.name}")
+    
+class  programmer(Employee):
+        def showlang(self):
+         print("h=my fav lang is Python")
+
+
+e=Employee("vishal",420)
+e=programmer ("vishal",420)
+e.show()    
+e.showlang()