input: Below is a Python function that detects and fixes syntax errors in a given code snippet.
  
  def fix_syntax_errors(code_snippet: str) -> str:
      """ Detect and fix Python syntax errors in a given code snippet.
      >>> fix_syntax_errors("def test ():\\nx = 5\\ny = 3\\nz")
      'def test():\\nx = 5\\ny = 3\\ntry:\\n    z\\nexcept NameError:\\n    print(\\"NameError: Name \\'z\\' is not defined\\")'
      """
output:     try:
          compile(code_snippet, '<string>', 'exec')
          return code_snippet
      except SyntaxError as e:
          error_line = e.lineno
          error_msg = str(e)
          lines = code_snippet.splitlines()
          if "invalid syntax" in error_msg:
              if "=" not in lines[error_line - 1]:
                  lines[error_line - 1] = f"try:\n    {lines[error_line - 1]}\nexcept SyntaxError:\n    print(\"SyntaxError: Invalid syntax\")"
              else:
                  lines[error_line - 1] = f"try:\n    {lines[error_line - 1]}\nexcept SyntaxError:\n    print(\"SyntaxError: Invalid syntax\")"
          elif "name" in error_msg.lower():
              if "=" not in lines[error_line - 1]:
                  lines[error_line - 1] = f"try:\n    {lines[error_line - 1]}\nexcept NameError:\n    print(\"NameError: Name '{lines[error_line - 1].strip()}' is not defined\")"
              else:
                  lines[error_line - 1] = f"try:\n    {lines[error_line - 1]}\nexcept NameError:\n    print(\"NameError: Name '{lines[error_line - 1].split('=')[0].strip()}' is not defined\")"
          return "\n".join(lines)