1. What’s Python? List some popular operations of Python in the world of technology.
Python is a programming language. It was created by Guido van Rossum in 1991 and further developed by the Python Software Foundation. It was designed with an emphasis on code readability, and its syntax allows programmers to express their generalities in smaller lines of code.
It’s used for
System Scripting
Web Development
Game Development
Software Development
Complex Mathematics
2. What are the benefits of using Python language as a tool in the present script?
The benefits of using Python as follows
Object-oriented Programming
High- Level Language
expansive support Libraries
Presence of third- party modules
Open source and community development
movable and Interactive
movable across Operating systems
3. Is Python a interpreted language or compiled language?
Both of them but partially.
4. What’s the difference between a variable datatype and an inflexible data type?
variable data types can be edited i.e., they can change at runtime. Eg – List, Dictionary, etc.
inflexible data types ca n’t be edited i.e., they ca n’t change at runtime. Eg – String, Tuple, etc.
5. What’s the difference between a Set and Dictionary?
The set is an unordered collection of data types that’s iterable and can be mutable or immutable.
A Dictionery in Python is an ordered collection of data, used to store data in Key-Value pair.
6. What’s List Comprehension? Give an illustration.
List appreciation is a syntax construction to ease the creation of a list grounded on being iterable.
For Example
= [i for i in range( 1, 10)]
7. What’s a lambda function?
A lambda function is an anonymous function. Lambda can have any number of parameters but, can have only one statement. For Example
a = (lambda x, y) (x * y)
print( a( 7, 19))
8. What’s a pass in Python?
Pass means performing no operation. Python has pass keyword.
9. What’s the difference between / and // in Python?
/ represents precise division( result is a floating point number) whereas // represents bottom division( result is an integer). For Example
5/2 = 2.5
5//2 = 2
10. What is the differences between for loop and while loop in Python ?
The “ for ” Loop is generally used to iterate through the elements of list, Tuple, Set, and Dictionary. Developers use a “ for ” loop where they’ve both the conditions start point and the end point. Whereas, the “ while ” loop is the factual looping point that’s used in any other programming language. Programmers use a Python while circle where they just have the end conditions.
11. Can we Pass one function as an argument of another function in Python?
Yes, functions can be passed as parameters to other functions because they’re objects. Higher-order functions are functions that can take other functions as arguments.
12. What are * args and ** kwargs in python?
We can use the syntax *args and **kwargs in the function. Both are to shoot a variable-length argument. The syntax *args is used to pass a non-keyworded and **kwargs is used for Key worded variable- length argument.
13. Is Indentation needed in Python?
Yes, indentation is needed in Python. A Python practitioner can be informed that a group of statements belongs to a specific block of law by using Python indentation. Indentations make the law easy to read for inventors in all programming languages but in Python, it’s veritably important to grave the law in a specific order.
14. What’s Scope in Python?
The scope of a variable in Python is the part of a program where the variable can be accessed. A variable’s scope is determined by where it is declared in the code:
Global scope
A variable declared outside of a function has global scope and can be accessed from anywhere in the program.
Local scope
A variable declared inside a function is called a local variable of that function.
Non-Local Scope
Nonlocal scope in Python is a variable scope that allows inner functions to access and change variables defined in their enclosing functions. The nonlocal keyword is used to declare that a variable is not local and to refer to a previously bound variable in the closest enclosing scope.
15. What’s docstring in Python?
Python docstrings give a accessible way of associating attestation with Python modules, functions, classes.
Declaring Docstrings: The docstrings are declared using ”’ triadic single quotations ”’ or “”” triadic double quotations “”” just below the class, system, or function protestation. All functions should have a docstring.
penetrating Docstrings The docstrings can be penetrated using the, croaker, system of the object or using the help serve.
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Author:- Sudip Kundo
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IT Education Centre Placement & Training Institute
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