char list to string python

1print("".join(["h", "e", "l", "l", "o"]))

1string_holder = ""
2string_list = ( "h", "e", "l", "l" ,"o" )
3string_holder.join(string_list) 
4print(string_holder)
5#output 
6# hello

1l = list('abcd')  	        # ['a', 'b', 'c', 'd']
2l = map(None, 'abcd')       # ['a', 'b', 'c', 'd']
3l = [i for i in 'abcd']	    # ['a', 'b', 'c', 'd']
4
5import re               # importing regular expression module
6l = re.findall('.', 'abcd')
7print(l)                	# ['a', 'b', 'c', 'd']

1fd = open(filename, 'rU')
2chars = []
3for line in fd:
4    chars.extend(line)
5