In my first post, I have already shared a link for downloading python ,once installed, you can confirm it by typing python in Windows search option.
You can also verify the same using command Prompt as shown below:
As we are done with installation and setup, now we will look at Syntax Structure of Python.
The term Syntax is referred to a set of rules that describes the structure of a language. The Python syntax defines all the set of rules that are used to create sentences in Python programming. eg. As basically grammar is important in English exactly the same way Syntaxes are important in programming languages.
Types of Syntax Structure in Python :
Line Structure:Python Comprises of logical lines so each line must be closed at correct point.Some examples are here to show how important line structure is:
Docstrings : Docstrings means documentation string. It is basically used for giving the precise description about the code. Docstrings are defined using 3 double quote Syntax.
Quotations:Python supports single and double quotes for string literals but the only thing we have to keep in mind is ,If we starts string with using single quote then we must end the string using single quote only ,similar is with double quote.
Variables:A Python Variable is a reserved memory location to store values. In other words, a variable in a python program gives data to the computer for processing.In Python, we don’t define the type of the variable. It is assumed on the basis of the value it holds.
Comments : ‘Comments’ lets us store tags at the right places in the code. We can use them to explain complex sections of code. The interpreter ignores comments. Declare a comment using an octothorpe (#).
Indentation:Since Python doesn’t use curly braces to delimit blocks of code, Indentation is mandatory in Python. You can indent code under a function, loop, or class. White space is used as an indentation to highlight the blocks of code in Python.
Identifier: Identifier is a name given to entities like class, functions, variables, etc. It helps to differentiate one entity from another.
Get Yashaswini Suryawanshi’s stories in your inbox
Join Medium for free to get updates from this writer.
Rules for defining Identifiers:
- Identifiers can be a combination of letters in lowercase (a to z) or uppercase (A to Z) or digits (0 to 9) or an underscore _. Names like
myClass,screen1andprint_this, are all valid examples. - Keywords cannot be used as identifiers.
3.We cannot use special symbols like !, @, #, $, % etc. in our identifier.
4.An identifier cannot start with a digit. 1digit is invalid, but digit1 is a valid name.
5.Identifier can be of any length.
SUMMARY : In this chapter, we have seen the various Syntaxes used in Python with relative examples.
In Next chapter, we will be looking into various data types and data structures in python.
To Be Continued…
