Overview
Python has various built-in data types to allow for variables to store different types of data that can do different things.
These default data-types are:
| Parameter | Description |
|---|---|
| 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 |
| None Type | NoneType |
Getting the Data Type
You can get the data type of any object by using the type() function
x = 8
print(type(x))<class 'int'>Setting the Data Type
In Python, the data type is set when you assign a value to a variable.
x = "Hello World" #str
x = 8 #int
x = 8.8 #float
x = 8j #complex
x = ["Sam", "Michael", "Gabriel"] #list
x = ("Sam", "Michael", "Gabriel") #tuple
x = range(6) #range
x = {"name" : "Johnny", "age" : 11} #dict
x = {"Sam", "Michael", "Gabriel"} #set
x = frozenset({"A", "B", "C"}) #frozenset
x = True #bool
x = b"Hello" #bytes
x = bytearray(5) #bytearray
x = memoryview(bytes(5)) #memoryview
x = None #NoneTypeSetting the Specific Data Type
If you want to specify the data type, you can use the following constructor functions.
x = str("Hello World") #str
x = int(8) #int
x = float(8.8) #float
x = complex(8j) #complex
x = list(["Sam", "Michael", "Gabriel"]) #list
x = tuple(("Sam", "Michael", "Gabriel")) #tuple
x = range(6) #range
x = dict(name = "Johnny", age = 11) #dict
x = set({"Sam", "Michael", "Gabriel"}) #set
x = frozenset({"A", "B", "C"}) #frozenset
x = bool(2) #bool
x = bytes(5) #bytes
x = bytearray(5) #bytearray
x = memoryview(bytes(5)) #memoryviewPython Notes:
- The most recent major version of Python is Python 3; however, Python 2 is still in use and quite popular, although not being updated with anything other than security updates
- Python uses new lines to complete a command, as opposed to other programming languages which often use semicolons or parentheses
- Python relies on indentation, using whitespace to define scope, such as the scope of loops, functions, and classes; other programming languages often use curly-brackets for this purpose
- Python string methods return new values, and DO NOT change the original string
We’d like to acknowledge that we learned a great deal of our coding from W3Schools and TutorialsPoint, borrowing heavily from their teaching process and excellent code examples. We highly recommend both sites to deepen your experience, and further your coding journey. We’re just hitting the basics here at 1SMARTchicken.