How do you combine lists in Python?

In python, we can use the + operator to merge the contents of two lists into a new list. For example, We can use + operator to merge two lists i.e. It returned a new concatenated lists, which contains the contents of both list_1 and list_2.

What is the use of tell () method in Python?

What is the use of tell() method in python? Explanation: The tell() method tells you the current position within the file; in other words, the next read or write will occur at that many bytes from the beginning of the file.

How do you select a number in a list in Python?

Python | Select random value from a list

1. Method #1 : Using random.choice()
2. Method #2 : Using random.randrange()
3. Method #3 : Using random.randint()
4. Method #4 : Using random.random()

Which two built in Python functions could you use to find the mean of a list of numbers?

There are two ways to find the average of a list of numbers in Python. You can divide the sum() by the len() of a list of numbers to find the average. Or, you can find the average of a list using the Python mean() function.

How do you concatenate multiple lists in Python?

Ways to concatenate two lists in Python

1. Method #1 : Using Naive Method.
2. Method #2 : Using + operator.
3. Method #3 : Using list comprehension.
4. Method #4 : Using extend()
5. Method #5 : Using * operator.
6. Method #6 : Using itertools.chain()

How do I merge nested lists in python?

First, flatten the nested lists. Take Intersection using filter() and save it to ‘lst3’. Now find elements either not in lst1 or in lst2, and save them to ‘temp’. Finally, append ‘temp’ to ‘lst3’.

What is the significance of the tell method?

The answer is option – (b) tells the current position of the file pointer within the file. The significance of the tell() method is it tells the current position of the file pointer within the file.

How do I randomly select from a list in Python?

To get random elements from sequence objects such as lists, tuples, strings in Python, use choice() , sample() , choices() of the random module. choice() returns one random element, and sample() and choices() return a list of multiple random elements.

How do you select a list in a list Python?

How to get select elements from a list or tuple in Python

1. a_list = [1, 2, 3]
2. indices = [0, 2]
3. selected_elements = [a_list[index] for index in indices] Create list of chosen list items.
4. print(selected_elements)

How do you find the mode of a list in Python?

Find Mode of a List in Python

1. Use the max() Function and a Key to Find the Mode of a List in Python.
2. Use the Counter Class in the Collections Package to Find the Mode of a List in Python.
3. Use the mode() Function From the statistics Module to Find the Mode of a List in Python.