Python Data Types
The data type is a crucial concept in programming.
Variables can store data of various types, and various types can do various things.
Python includes the following built-in data types by default in these categories :
Text Type : str
Numeric Types : int, float, complex
Sequence Types : list, tuple, range
Mapping Type : dict
Set Types : set, frozenset
Boolean Type : bool
Binary Types : bytes, bytearray, memoryview
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Getting the Data Type
Use the type() function for get the data type of any object :
Example :- The data type of the variable x should be printed :
x = 5
print(type(x)) Output :-
<class 'int'>
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Setting the Data Type
When you assign a value to a variable in Python, the data type is determined :
| Example | Data Type |
|---|---|
| x = "Hello World" | str |
| x = 20 | int |
| x = 20.5 | float |
| x = 1j | complex |
| x = ["apple", "banana", "cherry"] | list |
| x = ("apple", "banana", "cherry") | tuple |
| x = range(6) | range |
| x = {"name" : "John", "age" : 36} | dict |
| x = {"apple", "banana", "cherry"} | set |
| x = frozenset({"apple", "banana", "cherry"}) | frozenset |
| x = True | bool |
| x = b "Hello" | bytes |
| x = bytearray(5) | bytearray |
| x = memoryview(bytes(5)) | memoryview |
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Setting the Specific Data Type
You can use the following constructor functions to specify the data type :
| Example | Data Type |
|---|---|
| x = str(Hello World) | str |
| x = int(20) | int |
| x = float(20.5) | float |
| x = complex(1j) | complex |
| x = list(("apple", "banana", "cherry")) | list |
| x = tuple(("apple", "banana", "cherry")) | tuple |
| x = range(6) | range |
| x = dict(name="John", age=36) | dict |
| x = set(("apple", "banana", "cherry")) | set |
| x = frozenset(("apple", "banana", "cherry")) | frozenset |
| x = bool(5) | bool |
| x = bytes(5) | bytes |
| x = bytearray(5) | bytearray |
| x = memoryview(bytes(5)) | memoryview |
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