Can a list be input in python?
Sometimes while coding in Python, you will need to take a list as an input. While this might sound simple at first, it is often regarded as a complex task to accomplish for a beginner. This article will tell you how to input a list in Python. Show Following pointers will be covered in this article,
So let us get started then, Input a List in PythonAs you might already know, in order to accept an input from the user in Python, we can make use of the input() function. When used, it enables the programmer to accept either a string, integer or even a character as an input from the user. But when it comes to accepting a list as an input, the approach we follow is slightly different. This how to input a List in Python article, will address main areas of concern Find out our Python Training in Top Cities/Countries
Accept a list of number as an input in PythonTake a look at the example program below, which accepts a list of numbers as an input in Python. input_string = input("Enter a list element separated by space ") list = input_string.split() print("Calculating sum of element of input list") sum = 0 for num in list: sum += int (num) print("Sum = ",sum) When the above program is run, the output will look something like this. Output Enter a list element separated by space 2 4 6 9 Calculating sum of element of input list Sum = 20 Analysis Now let us breakdown the program and see how the workings behind it.
Moving on to the next topic of this article let us see how to input a list in python that holds strings, Accept a List of Strings from the UserSimilar to the above program, we have the ability to create a program in Python to accept a list of strings from the user. Take a look at the example below to understand this better. input_string = input("Enter family members separated by comma ") family_list = input_string.split(",") print("Printing all family member names") for name in family_list: print(name) When the above program is run, the output will look something like this. Enter family members separated by comma: Julius,Mark,John Printing all family member names Juluis Mark John Analysis Let us breakdown the above program into pointers and understand it better.
Moving on let us see how this concept fares from programming perspective, Examples Let us take a look at a couple of other examples to understand how to input a list in Python. Example 1# creating an empty list lst = [] # number of elemetns as input n = int(input("Enter number of elements : ")) # iterating till the range for i in range(0, n): ele = int(input()) lst.append(ele) # adding the element print(lst) Output Let us take a look at the next example, Example 2# try block to handle the exception try: my_list = [] while True: my_list.append(int(input())) # if input is not-integer, just print the list except: print(my_list) Output Example 3# number of elements n = int(input("Enter number of elements : ")) # Below line read inputs from user using map() function a = list(map(int,input("nEnter the numbers : ").strip().split()))[:n] print("nList is - ", a) This would be the final example of this article, Example 4lst = [ ] n = int(input("Enter number of elements : ")) for i in range(0, n): ele = [input(), int(input())] lst.append(ele) print(lst) Output This is it guys this brings us to the end of this article on How To Input A List In Python? To get in-depth knowledge on Python along with its various applications, you can enroll now for live online Python training with 24/7 support and lifetime access. Got a question for us? Mention them in the comments section of article and we will get back to you or join our Python Master course. How do you give a list as input?Entering list of lists. We can also use input function twice so that we can create a list of lists. Use the range function to keep account on number of elements to be entered and the format function to enter the elements one by one. Finally, we append each entered element to the newly created list.
How do you add inputs to a list in Python?To add user input to a list in Python:. Declare a variable that stores an empty list.. Use a range to iterate N times.. On each iteration, prompt the user for input.. append the value to the list.. How do you input a list in one line in Python?To take list input in Python in a single line use input() function and split() function. Where input() function accepts a string, integer, and character input from a user and split() function to split an input string by space.
How do you turn an input string into a list?To do this we use the split() method in string. The split method is used to split the strings and store them in the list. The built-in method returns a list of the words in the string, using the “delimiter” as the delimiter string.
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