You can accept their input and convert it to an int
>>> size = int[input['Enter size of array: ']]
Enter size of array: 3
Then use this value within the range function to iterate that many times. Doing so in a list comprehension you can repeatedly ask for input the same way.
>>> values = [int[input['Enter a value: ']] for _ in range[size]]
Enter a value: 3
Enter a value: 5
Enter a value: 7
>>> values
[3, 5, 7]
To do this in a more step-by-step manner you can use a for loop
values = []
for _ in range[size]:
values.append[int[input['Enter a value: ']]]
If you just want them to enter a line of values, don't worry about asking how many there will be. You can use split[] to tokenize the string on
whitespace [or whatever delimiter you pass in], then convert each value to an int.
>>> values = [int[i] for i in input['Enter some values: '].split[]]
Enter some values: 3 5 7 8
>>> values
[3, 5, 7, 8]
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We often encounter a situation when we need to take number/string as input from the user. In this article, we will see how to get as input a list from the user.
Examples:
Input : n = 4, ele = 1 2 3 4 Output : [1, 2, 3, 4] Input : n = 6, ele = 3 4 1 7 9 6 Output : [3, 4, 1, 7, 9, 6]
Code #1: Basic example
Python3
lst = []
n = int[input["Enter number of elements : "]]
for i in range[0, n]:
ele = int[input[]]
lst.append[ele]
print[lst]
Output:
Code #2: With handling exception
Python3
try:
my_list = []
while True:
my_list.append[int[input[]]]
except:
print[my_list]
Output:
Code #3: Using map[]
Python3
n = int[input["Enter number of elements : "]]
a = list[map[int,input["\nEnter the numbers : "].strip[].split[]]][:n]
print["\nList is - ", a]
Output:
Code
#4: List of lists as input
Python3
lst = [ ]
n = int[input["Enter number of elements : "]]
for i in range[0, n]:
ele = [input[], int[input[]]]
lst.append[ele]
print[lst]
Output:
Code #5: Using List Comprehension and Typecasting
Python3
lst1 = []
lst2 = []
lst1 = [int[item] for item in input["Enter the list items : "].split[]]
lst2 = [item for item in input["Enter the list items : "].split[]]
print[lst1]
print[lst2]
Output: