Master Python for data science and gain in-demand skills. Start Learning for Free What is the index() Function? The methodindex()returns the lowest index in the list where the element searched for appears. Let's
❮ List Methods ExampleGet your own Python Server What is the position of the value "cherry": fruits = ['apple', 'banana', 'cherry'] x = fruits.index("cherry") Try it Yourself » Definition and UsageThe index() method returns the position at the first occurrence of the specified...
In this tutorial, we will learn about the Python List index() method with the help of examples. Theindex()method returns the index of the specified element in the list. Example animals = ['cat','dog','rabbit','horse'] # get the index of 'dog' index = animals.index('dog') print(...
Let’s jump into the Python code! Create Sample List We will here create the samplePython listofintegersthat we will use in the examples in this tutorial. So, in yourPython programming IDE, run the code below to create the sample list: ...
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Return Value from List index() The index() method returns the index of the given element in the list. If the element is not found, a ValueError exception is raised. Note: The index() method only returns the first occurrence of the matching element. Example 1: Find the index of the ele...
Negative Indexing: Python also supports negative indexing, which starts from the end of the list. This means the last element can be accessed with-1, the second to last with-2, and so forth. In thecolorslist,colors[-1]returns'blue', the last element. ...
in device_info: if 'List' in i: continue # 将一条设备信息分割成一个list,第一部分为设备信息,第二部分为device,也就是设备的状态 device = i.split('\t') # 只有状态为device的时候这个设备才是可用的 if device[1] == 'device': devices_list.append(device[0]) return devices_list else: ...
ExampleGet your own Python Server Where in the text is the word "welcome"?: txt ="Hello, welcome to my world." x = txt.index("welcome") print(x) Try it Yourself » Definition and Usage Theindex()method finds the first occurrence of the specified value. ...
The index() function in Python is a built-in method that allows you to find the index of a specific element within a list. It provides a convenient way to determine the position of an element, enabling you to locate and access data efficiently. ...