Program to create a list with n elements from 1 to n in Python

Creating a list with n elements from 1 to n is a common task in Python. There are several efficient approaches using list comprehension, range() with list(), and other methods.

So, if the input is like n = 5, then the output will be [1, 2, 3, 4, 5]

Using List Comprehension

List comprehension provides a concise way to create lists by iterating over a range ?

def solve(n):
    return [i for i in range(1, n+1)]

n = 5
result = solve(n)
print(result)

[1, 2, 3, 4, 5]

Using range() with list()

Convert the range object directly to a list for a simpler approach ?

def create_list(n):
    return list(range(1, n+1))

n = 5
result = create_list(n)
print(result)

[1, 2, 3, 4, 5]

Using a for Loop

Traditional approach using a for loop to append elements ?

def create_list_loop(n):
    numbers = []
    for i in range(1, n+1):
        numbers.append(i)
    return numbers

n = 5
result = create_list_loop(n)
print(result)

[1, 2, 3, 4, 5]

Comparison

Conclusion

Use list(range(1, n+1)) for the most readable and efficient solution. List comprehension is ideal when you need to apply transformations during list creation.