The best way to learn Python?

Python programming is easy to use and powerful which makes it a great choice for beginners and experts alike. Python’s readability makes it a great first programming language — learning python allows you to think like a programmer and not waste time with confusing syntax. the best way to learn python is to get the basic knowledge and the basic syntax of the language https://www.campusnote.com/index.php/product/fluent-python-clear-concise-and-effective-programming-1st-edition/

The best way to learn python is by practicing and writing your own projects.

Python is a general-purpose language, which means it can be used to build just about anything.

There are two major Python versions, Python 2 and Python 3. Python 2 and 3 are quite different. Python 3 is more semantically correct and supports newer features. For example, In Python 2, the “print” statement is not a function. Therefore it is invoked without parentheses. on the other hand, in Python 3, it is a function, and must be invoked with parentheses.

Python is great for backend web development, data analysis, artificial intelligence, and scientific computing

Learning Python

Python code strictly depends on the use of proper indentation, making the code clear and more structured. Considering its simple and clean syntax, super readable code it is the recommended language. Also it’s one of the recommended choices if you want to learn programming, and if you’ve never written code before

Python is being used by many big companies as it is simple, versatile and easy to maintain. For instance, python is used by companies like Facebook, Google, NASA, Quora, Amazon, Reddit, Netflix, Dropbox, Instagram. Therefore, learning python is a great start to land a good software job

In addition, It is an open source so you can get to know every aspect of it if you want. At the same time, Python is hugely popular and has a massive community of developers who can support you when stuck.

Python Programming Book: https://www.campusnote.com/index.php/product/fluent-python-clear-concise-and-effective-programming-1st-edition/

Getting Python

The most up-to-date and current source code, binaries, documentation, news, etc., is available on the official website of Python https://www.python.org/

Step 1: Download the Python 3 Installer
  1. Open a browser window and navigate to the Download page for Windows at python.org.
  2. Underneath the heading at the top that says Python Releases for Windows, click on the link for the Latest Python 3 Release 
  3. Scroll to the bottom and select either windows or mac version

Python Program to Print Hello world!:

In this program, we have used the built-in print() function to print the string Hello world! on the terminal.

Python has a lot of  Built-in Functions. The Python interpreter has a number of functions that are always available for use. These functions are called built-in functions. For instance, print() function prints the given object to the user or to the text stream file.

 Some examples of a built in functions 

– abs()

– any()

– bin()

-format()

-filter()

You can check all of them: https://docs.python.org/3/library/functions.html

What’s a String?

String is a sequence of characters. In Python, strings are enclosed inside single quotes, double quotes or triple quotes (”’, “””).

Python Output Using print() function

We use the print() function to output data to the standard output device (screen).

What is the different between Java vs Python?

The biggest difference between the two languages is that Java is a statically typed and Python is a dynamically typed.

Java and Python have many similarities. Both languages have strong cross-platform support and extensive standard libraries. In other words, they give you more control when developing any software project.

Whitespace is part of Python’s syntax, while Java ignores it. Python uses tabs for nesting and a full colon to start loops and conditional blocks. Java ignores whitespace and uses semicolons, parentheses and curly braces. Arguments over which code is easier to read, like the debate over static vs. dynamic typing, are subjective

Static typed programming languages

A language is statically-typed if the type of a variable is known at compile time and not at the runtime. Common examples of statically-typed languages include Ada, C, C++, C#, JADE, Java, Fortran, Haskell, ML, Pascal, and Scala.

Advantages:
  1. Earlier detection of bugs 
  2. increased runtime efficiency
  3. Better documentation in form of type annotation 
Disadvantages

1. Code is less reusable 

2. Can’t handle a changing variable type 

3. Robust 

Dynamic Type Checking

Dynamic type checking is the process of verifying the type safety of a program at runtime. Common dynamically-typed languages include Groovy, JavaScript, Lisp, Lua, Objective-C, PHP, Prolog, Python, Ruby, Smalltalk and Tcl.

Advantages:
  • Simpler languages
  • flexible 
  • Allows programs to generate types based of the runtime data
Disadvantages:
  • Run-time type errors.
  • Can be very difficult or even practically impossible to achieve the same level of correctness and requires vastly more testing.
  • No compiler-verified documentation.
  • More effort of writing exceptions 
Conclusion

Python reads like English, which takes a lot of syntax-learning stress off coding beginners. In addition, Python handles a lot of programming complexity for you, so it is good first language for beginners to learn. Python has a very simple, consistent syntax, a large standard library and, most importantly, using Python in a beginning programming course permits students to concentrate on important programming skills such as problem decomposition and data type design. With Python, students can be quickly introduced to basic concepts such as loops and procedures. They can even probably work with user-defined objects in their very first course.

Remember the best way to learn python or any programming language is by doing. PRACTICE, PRACTICE , PRACTICE..>!!!

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