python transform an array in a string code example

Example 1: how to convert a list into string with \n

int_lst = [1, 2, 3, 4, 5]
full_str = '\n'.join([str(elem) for elem in list_of_num])
print(full_str)

Example 2: python array to string

mystring = 'hello, world'

myarray = string1.split(', ') #output => [hello, world]

myjoin1 = ', '.join(myarray) #output => hello, world
myjoin2 = ' '.join(myarray) #output => hello world
myjoin3 = ','.join(myarray) #output => hello,world