Human: Give me a Python code to remove all zeros from a list. Assistant: 
Here is a Python code to remove all zeros from a list

import copy

def remove_zeros(list_of_numbers):
    """
    Removes all zeros from a list.
    """
    return [x for x in list_of_numbers if x!= 0]

# Enter the list
list_of_numbers = [1, 2, 3, 0, 4, 5, 6, 0, 7, 8, 9]

# Calling the function
list_of_numbers_without_zeros = remove_zeros(list_of_numbers)

# Printing the list
print(list_of_numbers_without_zeros)

#Example Output
# [1, 2, 3, 4, 5, 6, 7, 8, 9]

#Remember to inspect code for bugs.