Bug Report for string-encode-and-decode

[abby-diamond]

Bug Report for https://neetcode.io/problems/string-encode-and-decode

Please describe the bug below and include any steps to reproduce the bug or screenshots if possible.

Bug description: using $ as a delimiter in the Python version of the problem causes the test script to throw an error.

Working example using & as delimiter:

class Solution:

    def encode(self, strs: List[str]) -> str:
        output = []
        for string in strs:
            length = len(string)
            output.append(''.join([str(length), '&', string]))
        return ''.join(output)
        

    def decode(self, s: str) -> List[str]:
        output = []
        i = 0
        while i < len(s):
            length = []

            while s[i] != '&':
                length.append(s[i])
                i += 1
            length = int(''.join(length))
            
            # skip over delimiter
            i += 1

            output.append(s[i:i+length])
            i += length
        return output

Same example, except using $ as delimiter

class Solution:

    def encode(self, strs: List[str]) -> str:
        output = []
        for string in strs:
            length = len(string)
            output.append(''.join([str(length), '$', string]))
        return ''.join(output)
        

    def decode(self, s: str) -> List[str]:
        output = []
        i = 0
        while i < len(s):
            length = []

            while s[i] != '$':
                length.append(s[i])
                i += 1
            length = int(''.join(length))
            
            # skip over delimiter
            i += 1

            output.append(s[i:i+length])
            i += length
        return output

Error thrown:

File "/box/script.py", line 7
    output.append(''.join([str(length), '
                                        ^
SyntaxError: unterminated string literal (detected at line 7)