How to use the type() function in Python to get the type of an object

How to use the type() function in Python to obtain the type of an object

Python is a dynamic language, and objects can change types at runtime. Therefore, in the programming process, it is very important to understand the type of objects. Python provides the type() function to obtain the type of an object.

Using the type() function is very simple. You only need to pass the object whose type you want to check as a parameter to the function. Let's use several examples to demonstrate how to use the type() function to obtain the type of an object.

Example 1: Get the type of integer

num = 10
print(type(num))

Running result:

<class 'int'>

In the above code, we define an integer object num and obtain it through the type() function The type of object. The result is displayed as <class 'int'>, indicating that the type of the object is an integer.

Example 2: Get the type of floating point number

pi = 3.14159
print(type(pi))

Running result:

<class 'float'>

In the above code, we define a floating point number object pi, and pass type() The function gets the type of object. The result is displayed as <class 'float'>, indicating that the type of the object is a floating point number.

Example 3: Get the type of string

name = "Tom"
print(type(name))

Running result:

<class 'str'>

In the above code, we define a string object name and pass type() The function gets the type of object. The result is displayed as <class 'str'>, indicating that the type of the object is a string.

Example 4: Get the type of Boolean value

flag = True
print(type(flag))

Running result:

<class 'bool'>

In the above code, we define a Boolean value object flag and pass type() The function gets the type of object. The result is displayed as <class 'bool'>, indicating that the type of the object is a Boolean value.

Example 5: Get the type of the list

lst = [1, 2, 3]
print(type(lst))

Running result:

<class 'list'>

In the above code, we define a list object lst and obtain it through the type() function The type of object. The result is displayed as <class 'list'>, indicating that the type of the object is a list.

Example 6: Get the type of dictionary

dic = {"name": "Tom", "age": 20}
print(type(dic))

Running result:

<class 'dict'>

In the above code, we define a dictionary object dic and obtain it through the type() function The type of object. The result is displayed as , indicating that the type of the object is a dictionary.

Through the above example, we can see that the type of the object can be easily obtained using the type() function, and the result is displayed in the form of .

It should be noted that the type() function returns the type of the object, that is, the type of the class to which the object belongs. If we use the type() function on a custom class, it will return instead of the name of the class. If you want to get the name of a class, you can use the __name__ attribute.

In summary, the type() function is a built-in function in Python for obtaining the type of an object. The type of an object can be easily obtained through the type() function. Knowing the types of objects is very important for program development and debugging. It can help us correctly operate different types of objects and improve programming efficiency.

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