Python recursion save value

def to_string(node):
    def actual_recursive(node):
        nonlocal a_str		# ~global, can modify surrounding function's scope.
        a_str += str(node.val)
        if node.next != None:
            actual_recursive(node.next)
    a_str = ''
    actual_recursive(node)
    return a_str

Source: stackoverflow.com

Similar codes

20 votes196 views6 answers
Pandas show all columns
Python
0 vote184 views1 answer
Pandas dataframe read string as date
Python
0 vote172 views1 answer
Change each line color as a rainbow python
Python
0 vote176 views3 answers
How to replace zero with null in python
Python
1 vote167 views1 answer
Python sort a list by a custom order
Python
1 vote195 views1 answer
Python get last element of iterator
Python
1 vote164 views1 answer
Delete last message discord.py
Python
3 votes189 views1 answer
PowerShell says “execution of scripts is disabled on this system.”
Python
5 votes174 views1 answer
How to make a python app for android
Python
0 vote181 views1 answer
Opencv skip video frames
Python