Values and Types: int, float, boolean, string, and list
Values
Value can be any letter, number or string.
For e.g., Values are 2, 42.0, and 'Hello, World!'. (These values belong to different data types.)
Python Data Types
Variables can hold values, and every value has a data-type. Python is a dynamically
typed language; hence we do not need to define the type of the variable while declaring it.
The interpreter implicitly binds the value with its type.
a=5
The variable a holds integer value five and we did not define its type. Python
interpreter will automatically interpret variables a as an integer type.
Python enables us to check the type of the variable used in the program. Python
provides us the type() function, which returns the type of the variable passed.
Consider the following example to define the values of different data types and
checking its type.
1. a=10
2. b="Hi Python"
3. c = 10.5
4. print(type(a))
5. print(type(b))
6. print(type(c))
Standard data types
A variable can hold different types of values. For example, a person's name must be
stored as a string whereas its id must be stored as an integer.
Python provides various standard data types that define the storage method on each of
them. The data types defined in Python are given below.
Numbers
Sequence Type
Boolean
Set
Dictionary
, Numbers
Number stores numeric values. The integer, float, and complex values belong to a
Python Numbers data-type. Python provides the type() function to know the data-type of the
variable. Similarly, the isinstance() function is used to check an object belongs to a particular
class.
Python creates Number objects when a number is assigned to a variable. For example;
a=5
print("The type of a", type(a))
b = 40.5
print("The type of b", type(b))
c = 1+3j
print("The type of c", type(c))
print(" c is a complex number", isinstance(1+3j,complex))
Python supports three types of numeric data.
int - Integer value can be any length such as integers 10, 2, 29, -20, -150 etc. Python
has no restriction on the length of an integer. Its value belongs to int
float - Float is used to store floating-point numbers like 1.9, 9.902, 15.2, etc. It is
accurate upto 15 decimal points.
complex - A complex number contains an ordered pair, i.e., x + iy where x and y
denote the real and imaginary parts, respectively. The complex numbers like 2.14j,
2.0 + 2.3j, etc.
Values
Value can be any letter, number or string.
For e.g., Values are 2, 42.0, and 'Hello, World!'. (These values belong to different data types.)
Python Data Types
Variables can hold values, and every value has a data-type. Python is a dynamically
typed language; hence we do not need to define the type of the variable while declaring it.
The interpreter implicitly binds the value with its type.
a=5
The variable a holds integer value five and we did not define its type. Python
interpreter will automatically interpret variables a as an integer type.
Python enables us to check the type of the variable used in the program. Python
provides us the type() function, which returns the type of the variable passed.
Consider the following example to define the values of different data types and
checking its type.
1. a=10
2. b="Hi Python"
3. c = 10.5
4. print(type(a))
5. print(type(b))
6. print(type(c))
Standard data types
A variable can hold different types of values. For example, a person's name must be
stored as a string whereas its id must be stored as an integer.
Python provides various standard data types that define the storage method on each of
them. The data types defined in Python are given below.
Numbers
Sequence Type
Boolean
Set
Dictionary
, Numbers
Number stores numeric values. The integer, float, and complex values belong to a
Python Numbers data-type. Python provides the type() function to know the data-type of the
variable. Similarly, the isinstance() function is used to check an object belongs to a particular
class.
Python creates Number objects when a number is assigned to a variable. For example;
a=5
print("The type of a", type(a))
b = 40.5
print("The type of b", type(b))
c = 1+3j
print("The type of c", type(c))
print(" c is a complex number", isinstance(1+3j,complex))
Python supports three types of numeric data.
int - Integer value can be any length such as integers 10, 2, 29, -20, -150 etc. Python
has no restriction on the length of an integer. Its value belongs to int
float - Float is used to store floating-point numbers like 1.9, 9.902, 15.2, etc. It is
accurate upto 15 decimal points.
complex - A complex number contains an ordered pair, i.e., x + iy where x and y
denote the real and imaginary parts, respectively. The complex numbers like 2.14j,
2.0 + 2.3j, etc.
