list' object has no attribute 'splitlines'

This error occurs when you try to use the splitlines() method on a list object, which is not supported. The splitlines() method is used to split a string into a list of lines, but it cannot be used on a list directly.

To fix this error, you should first convert the list to a string using the join() method, and then use the splitlines() method on the resulting string. For example:

my_list = ['hello\n', 'world\n']
my_string = ''.join(my_list)
lines = my_string.splitlines()
print(lines)

This will output:

['hello', 'world']

Alternatively, you can loop through the list and split each element individually using the split() method. For example:

my_list = ['hello\n', 'world\n']
lines = []
for item in my_list:
    lines += item.splitlines()
print(lines)

This will also output:

['hello', 'world']