Python: How to convert from list to string?

If you mean that you have a list of strings that you want to join into a single string, that's exactly what the .join() string method does. The syntax is <sep>.join(<strings>), where <strings> is a sequence of string values that you want to concatenation, and <sep> is a separator string copied to the result between adjacent input strings.

Examples, pasted from an Idle window:

>>> vowels = ['a', 'e', 'i', 'o', 'y']

>>> ''.join(vowels) # empty string as separator

'aeioy'

>>> ', '.join(vowels) # separate with comma and space

'a, e, i, o, y'

>>> ' - '.join(('x', 'o', 'x')) # works with other sequence types

'x - o - x'

>>> ' '.join('xyzzy') # a string is a sequence of characters

'x y z z y'

Google it!