Python Interview Questions

Interview Q & A

Python Interview Questions

1. What are the applications can be developed in Python?

Python Programming Language is used to develop desktop, web, mobile applications with the complex scientific and numeric methods. It can be used in data analysis and visualization process effectively..

2. What is the purpose of pass statement in Python?

The pass statement in Python is used to provide the required syntactical in the statement without any command or code to execute..

3. Write the output for print str[4:7] if str = ‘welcome python’

The output will be “ome” as it print characters from 5th to 7th.

4.List the data types of Python?.

Python has five data types such as Numbers, String, Tuple, List, and Dictionary.

5. What is mean by tuples?

Tuples are one of the data type in python that consists number of values separated by commas. Data will be enclosed in parenthesis.

6. Differentiate tuples and lists in Python?

Tuples are enclosed in parenthesis ( ) which can not be updated while the lists are enclosed in brackets [ ] that the elements and its size can be changed.

7. What is Parser in Python?

Python Parser is an interface to compile the data into byte-code by breaking it into a smaller element. It edits the python expression and execute it. Parser takes input as a series of tokens and builds data structure as parse tree or abstract tree.

8. What are the types of Parsing techniques in Python?

Python has two types of parsing techniques such as top down parsing which perform the compilation from the starting symbol to the input string, and bottom up parsing which performs the compilation from input string to the starting symbol.

9. Explain the Python Syntax.

The Python Syntax is the set of rules that define the way to write python code. It contains predefined words known as keywords, data types, loops, functions, structures, and algorithms.

10.What are the dictionaries in Python?

Dictionaries are like hash table that consists of key-value pairs. It can be numbers, strings, and any object values.

11.Define the Syntax Error in Python.

Syntax error arises when the Python parser is not able to understand the code line. It can be typos, incorrect arguments, or incorrect indention.

12. Explain Indention in Python

Indentation is used to highlight the block of code with the use of white space. It is the type setting to place the code in right, left, or separate from surrounding texts. It conveys the program structure.

13. List some Python Reserve words?

Some of the identifiers which served as the reserved words are finally, return, lambda, nonlocal, assert, except, None, continue, etc.

14 .Describe the Variable Name Rules of Python?

Variable name must begin with a letter that is from a-z, A-Z, or underscore (_), the characters can be letters and numbers. It is a case sensitive with unlimited (reasonable) length size.

15.What is Python IDLE?

IDLE in Python is Integrated Development Environment for writing programs with GUI toolkit.

16.Describe the features of IDLE?

It is cross platform which means it can be written and run anywhere like windows, Unix, Linux, etc.
It is a multi-window text editor with indent facility for syntax highlighting.
It has Shell window and Integrated debugger

17.Define Python Scope?

Scope is the coding region from that we can access particular python object with some limitations. It can be local scope that a variable created and used inside of the function and global scope that a variable created in main body of Python and can be shared within the program with the keyword called Global Keyword.

18.What is Lambda in Python?

A lambda is a function which is anonymous to take any number of arguments with only one expression.

19.Define Modules in Python?

Module is a file that contains set of functions that the developer want to include in their application.

20.What is JSON in Python?

JSON is a syntax that can be used for storing and exchanging of data in the form of text which is written in JavaScript object notation.

21.Describe about Python RegEx?

RegEx is stands for Regular Expression which means the sequence of characters to form a search pattern. It can be used to check the string whether it contains any pattern in it.

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