IT hands-on

Sometimes we don't want the local variables in nested functions to be interpreted as local variable by  python . Below is a simple example using the

Decorators  are a way to add functionalities to a function without altering the original one. In the below example, we make the  original()  function prin

Dataclass  is a class  decorator  that makes it easy for us to create classes that are "data" oriented. for example: Is equivalent to: The  @datac

We have the below data structures: We try to add an elements to one list as below: Appending " 10 " to  list1  does not add " 10 " to  list

In the below example, we make a  shallow copy  " l2 " of a list " l1 " using regular " = " assignment, we also make a  deep copy

In order to help  istio  handle network problems, we could use for example the  automatic retries . Within the  automatic reply  parameter, we could also set

We could use  decorators  with parameters for example to control the flow of the execution of a  decorator  as we can see below: As we can see above, we co

Injection of  sidecar  in a  kubernetes  application, means that  istio  is going to modify the deployment's  Yaml  file of our  pods  to include a  side car

When we override a function in a subclass. The  super()  function helps us call the "original" method in the parent class as we can see in the

To avoid confusing  positional  "regular" argument, we could name our parameters and specify them by name using  keyword arguments . When calling

An  interface  does nothing. It only provides a blueprint comprised of methods that classes - <i> using that blueprint</i>  - must follow.  To create an  interface

There are no real private variable in  python , but we can keep some variable from being visible from outside the "private" scope. In our below

In  python ,  iterables  are objects that we can loop through. These objects implement an " __iter__() " function that returns an  iterato r . The  iter

A  keyword argument  has the following format " name=value ". We can pass a  keyword argument  to a function as follows: We could also call the fun

Context managers  give you a way to allocate and release resources depending on your need s.  To define  context managers  we make use of the the expressio

Sometimes, for some reasons, we may want our code to run from the main program, not from imported code using the " import " syntax. Before runn

The " for " loop is used to iterate over the elements an " iterable " python  object, for example -<i>  string,  list, tuple</i> -. We have below

The " yield " instruction must "live" within a function. When a function that contains a " yield " statement is called, the

We create a class that inherits from the " Exception " class.  Our exception class is called " OurException " and it is raised when a v

The " @property " refers to a  python  decorator  - <i> a function that adds functionalities to another function without modifying its code </i> -. The  &qu

If a method has a  @classmethod  decorator, then it is a  class method . A  class method  has as its first argument " cls " which refers to the class

For our example, we define a class called " Member ": We subclass our class " Member " as below: Defining  __init__()  in our subclass wi