Update Day-54

Author: abhijeetpandit7

Day-54-IntroWebDevelopment/exercise.py

@@ -0,0 +1,22 @@
+import time
+
+def speed_calc_decorator(function):
+    def wrapper_function():
+        start_time = time.time()
+        function()
+        end_time = time.time()
+        print(f"{function.__name__} run speed: {end_time-start_time}s")
+    return wrapper_function
+
+@speed_calc_decorator
+def fast_function():
+    for i in range(10000000):
+        i * i
+
+@speed_calc_decorator    
+def slow_function():
+    for i in range(100000000):
+        i * i
+
+fast_function()
+slow_function()

Day-54-IntroWebDevelopment/hello.py

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+# Run a Flask server
+from flask import Flask
+app = Flask(__name__)
+# __name__ is a special built-in Python attribute ie a name of
+# class, function, method, descriptor or generator instance
+# '__main__' is name of scope, which means executing code in particular module.
+
+@app.route("/")
+def hello_world():
+    return "Hello, World!"
+
+@app.route("/bye")
+def hello_bye():
+    return "Bye!"
+
+# On Command Prompt:
+# set FLASK_APP=hello.py
+# flask run
+
+# Alternative to `flask run`
+if __name__=="__main__":
+    app.run()

Day-54-IntroWebDevelopment/python_decorator.py

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+import time
+# Python Decorator Function
+
+# It wraps another function, modifies or add some additional functionality
+def delay_decorator(function):
+    def wrapper_function():
+        # Do something
+        time.sleep(2)
+        function()
+    return wrapper_function
+
+@delay_decorator
+def say_hello():
+    print("Hello")
+say_hello()
+
+def say_greeting():
+    print("Greeting")
+# `@delay_decorator` Alternative for
+decorated_function = delay_decorator(say_greeting)
+decorated_function()
+
+def say_bye():
+    print("Bye")