input: from typing import List
  
  
  def fix_syntax_errors(code: str) -> str:
      """ Given a code snippet as a string, this function will detect and fix common Python syntax errors.
      It will attempt to handle NameError by wrapping undefined variables in a try-except block.
      >>> fix_syntax_errors("def test ():\n    x = 5\n    y = 3\n    z\n")
      "def test():\n    x = 5\n    y = 3\n    try:\n        z\n    except NameError:\n        print(\"NameError: Name 'z' is not defined\")"
      """
output:     lines = code.split('\n')
      fixed_lines = []
      for line in lines:
          if '=' not in line and not line.strip().startswith('#'):
              try_line = f"    try:\n        {line}\n    except NameError:\n        print(\"NameError: Name '{line.split()[-1]}' is not defined\")"
              fixed_lines.append(try_line)
          else:
              fixed_lines.append(line)
      return '\n'.join(fixed_lines)