The speaker is discussing a Python programming problem related to list manipulation. The task is to write a program that creates a new list from a given list, including only those elements that are present in another list. The speaker explains that the input list contains both integers and nested lists. The goal is to extract only the integer elements from the input list.
The speaker then demonstrates how to create a function, `find_list`, that takes an input list as a parameter. The function iterates over the input list, and if an element is of type `list`, it is added to a new list. The function returns this new list.
The speaker also mentions the `isinstance` function, which can be used to check the type of an element. However, the speaker notes that using `isinstance` with `int` will raise a `TypeError` because integers are not iterable. Instead, the speaker suggests using `isinstance` with `list` to check if an element is a list.
Finally, the speaker suggests that the function can be further modified to count the number of string elements, list elements, or any other type of elements in the input list. The speaker encourages viewers to subscribe to their channel, check out their courses, and enroll in their Python course.
1. The speaker is discussing a Python programming problem that involves creating a new list from a given list, but only including elements that are present in another list.
2. The input list contains both integer and string elements, as well as nested lists.
3. The speaker creates a function called `find_list` that takes an input list as a parameter.
4. Inside the function, the speaker iterates over the input list and checks the type of each element.
5. If the element is a list, it is printed.
6. The speaker then modifies the function to store the results in a new list instead of printing them.
7. The speaker uses the `extend` method to add elements to the new list.
8. The speaker also discusses using the `isinstance` function to check if an element is a list.
9. The speaker demonstrates how to modify the function to only include integer values in the new list.
10. The speaker suggests that viewers can check out the speaker's courses on Python and interview questions on the speaker's website.