Shulou(Shulou.com)06/01 Report--

Xiaobian to share with you the Python-list append() and extend() methods what the difference, I hope you have something to gain after reading this article, let's discuss it together!

Append() and extend() methods are used to add data to the end of the list, the difference between the two:

append() adds the data as a whole, allowing any type of data to be added

extend() adds the added data iteratively. Only iterable object data is allowed to be added (iterable object: objects that can be iterated with a for loop are iterable objects, such as strings, lists, ancestors, dictionaries, collections, etc.)

Second, the use of the append() method (after adding the object as a whole to the list):

Add a list to a list.

2. Add tuple to list

3. Add dictionary to list

4. Add the set collection to the list

5. Add a single value to a list

6. Add class/object to list

Use of the extend() method (after iterating objects to the list):

Add list to list

2. Add tuple to list

3. Add dictionary to list

4. Add the set collection to the list

5. Add a single value to the list (a single value is not iterable, so an error will be reported)

6. Add class/object to list (class/object is not iterable, so error will be reported)

IV. Summary:

The append() and extend() methods both add data to the end of the list, the append() method supports adding all data, and the extend() method only supports data for iterable objects.

After reading this article, I believe you have a certain understanding of "what is the difference between append() and extend() methods in Python-list". If you want to know more about it, please pay attention to the industry information channel. Thank you for reading!

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