###### Python program to find the sum of all numbers in a list

You can find the sum of all numbers in a list in Python using the `sum()` function. Here's a simple Python program to achieve that:

```python

def sum_of_numbers(numbers):

# Using the sum() function to find the sum of all numbers in the list

return sum(numbers)

# Example usage:

my_list = [10, 20, 30, 40, 50]

total_sum = sum_of_numbers(my_list)

print("The sum of all numbers in the list is:", total_sum)

```

This program defines a function `sum_of_numbers` that takes a list of numbers as input and returns the sum of all numbers using the `sum()` function. Then, it calls this function with an example list `my_list` and prints the total sum.