We can install Matplotlib using Pip. Pip is a management software for installing Python packages.

To populate the table "INSERT" command is passed to SQLite."execute" method executes the SQL command to perform some action.
Example:
Sql_command =" " INSERT INTO student (Rollno, Sname, Grade, Gender, Average, birth_date) values (NULL, "Akshay", "B", "M", "87.8", "2001-12-12");" " cursor.execute(sql_command)

(i) The theoretical difference between the two is that scripting languages do not require the compilation step and are rather interpreted.
(ii) For example, normally, a C++ program needs to be compiled before running whereas, a scripting language like JavaScript or Python need not be compiled.
(iii) A scripting language requires an interpreter while a programming language requires a compiler. 

The row heading is get sorted, to avoid the first row should be skipped. This is can be done by using the command "next( )".

S.No	Unique Key Constraint	Primary Key Constraint
(i)	This constraint ensures that no two rows have the same value in the specified columns.	This constraint declares a field as a Primary Key which helps to uniquely identify a record.
(ii)	The UNIQUE constraint can be Create applied only to fields that have also been declared as NOT NULL.	The Primary Key does not allow NULL values.

Hierarichal data Model	Network data model
In Hierarchical model, a child record has only one parent node	In a Network model, a child may have many parent nodes,
It Hierarchical model, data is represented as a simple tree like structure form.	It represents the data in many-to-many lationships.

 

Once a class is created, next to create an object or instance of that class. This process of creating object is called as "Class Instantiation".

Python enables reverse or negative indexing for the list elements. Thus, python lists index in opposite order. The python sets -1 as the index value for the last element in list and -2 for the preceding element and so on. This is called as Reverse Indexing.

Python will not allow deleting a particular character in a string. Whereas you can remove entire string variable using del command.
Example :
>>> strl="How about you"
>>> print (str1)
        How about you
>>> del str1
>>> print (str1)
Traceback (most recent call last):
         File "", line 1, in
                 print (strl)
NameError : name 'str1' is not defined

Scope of variable refers to the part of the program, where it is accessible, i.e., area where the variables can refer (use) it. The scope holds the current set of variables and their values. The two types of scopes - local scope and global scope.

The break statement terminates the loop containing it. Control of the program flows to the statement immediately after the body of the loop.

Algorist may refer to,
1. A person skilled in the technique of performing basic decimal arithmetic, known as algorism.
2. A person skilled in the design of algorithms.
3. An algorithmic artist.

Literal is a raw data given in a variable or constant. In Python, there are various types of literals.
1) Numeric Literals:
Numeric Literals consists of digits and are immutable.
2) String Literals:
In Python a string literal is a sequence of characters surrounded by quotes.
3) Boolean Literals:
A Boolean literal can have any of the two values: True or False.

Namespaces are containers for mapping names of variables to objects.
Example : a : =5
Here the variable 'a' is mapped to the value '5.

S.No	Constructors	Selectors
(i)	Constructors are functions that build the abstract data type.	Selectors are functions that retrieve information from the data type.
(ii)	Constructors create an object, bundling together different pieces of information.	Selectors extract individual pieces of information from the object

 

X: = (78) has an expression in it but (78) is not itself an expression. Rather, it is a function definition. Definitions bind values to names, in this case the value 78 being bound to the name 'X'.