QUICK REVISION of the Informatics
Practices Examination
Data
Types
Every value belongs to a specific
data type in Python. Data type identifies the type of data which a variable can
hold and the operations that can be performed on those data.
Number: - Number data type
stores numerical values only. It is further classified into three different
types: int, float and complex
Note – type() function is used to
determine the type of data type.
Note: -
- Variables of simple data types like integer, float, Boolean etc. hold single value. But such variables are not useful to hold multiple data values.
- Python provides sequence data types like Strings, Lists, Tuples, and mapping data type Dictionaries.
Sequence
- A Python sequence is an ordered collection of items, where each item is indexed by an integer value.
- Ordered collection – Getting items in output are in same order as they specified in input.
· Indexing – Each item can be accessed by using the indexing concept. We have mainly two types of indexing i.e., Positive and negative
