Skip to main content

Python Crash Course : Part 2


For learning core of any programming language it is necessary to learn three fundamental types of language constructs :
1.       Sequential Statements
2.       Control Statements
3.       Iterative Statements
It is just that simple , only three things to learn .Cool !!

Sequential Statements in Python

·         Variables(memory) are integral part of any algorithm implementation.
·         There is no need of declaring data type of the variable used, Python implies the data type based on context. Which is similar in Scripting language like JavaScript[here we use 'var' keyword].
Example : x=1 , x=’string’ , x=0.000 . Based on type of data at RHS the datatype of variable is implied.

·         INPUT and OUTPUT constructs in Python  :

INPUT :

                                Example : y=input(“Please , Provide the value of Y”)
 input() function provides the basic system input which can be responded by user keyboard.
 As said earlier the data type of variable Y will be implied based on the input given by the user.

        OUTPUT:

                                Example : print(y)
print() function provides the basic system output onto console.
·         Few other categories in Python sequential constructs are Operators , which are similar to other programming languages.


·         Coding using learnt constructs :                
x=’Hello World’
y=input(“Please Enter your name”)

print(“This is”+x” “+”Program written by :”+y)

Comments

Popular posts from this blog

Event Sourcing with CQRS.

  The way event sourcing works with CQRS is to have  part of the application that models updates as writes to an event log or Kafka topic . This is paired with an event handler that subscribes to the Kafka topic, transforms the event (as required) and writes the materialized view to a read store.

GraphQL microservices (GQLMS)

I'm curios of GraphQL !     -  GraphQL is an open-source data query and manipulation language for APIs, and a runtime for fulfilling queries with existing data. GraphQL was developed internally by Facebook in 2012 before being publicly released in 2015. It should be solving a problem in querying data !     -GraphQL lets you ask for what you want in a single query, saving bandwidth and reducing waterfall requests. It also enables clients to request their own unique data specifications. A case study ?!    -https://netflixtechblog.com/beyond-rest-1b76f7c20ef6 So, This is just another database technoloy ?  -  No. GraphQL is often confused with being a database technology. This is a misconception, GraphQL is a   query language   for APIs - not databases. In that sense it’s database agnostic and can be used with any kind of database or even no database at all. Source:   howtographql.com