input: def fix_syntax_errors(code_snippet: str) -> str:
      """Detect and fix Python syntax errors in the given code snippet.
      >>> fix_syntax_errors("def test ():\n    x = 5\n    y = 3 \n    z")
      "def test():\n    x = 5\n    y = 3\n    try:\n        z\n    except NameError:\n        print('NameError: Name \'z\' is not defined')"
      """
output:     try:
          compile(code_snippet, '<string>', 'exec')
          return code_snippet
      except SyntaxError as e:
          if "invalid syntax" in str(e):
              code_snippet = code_snippet.replace(" = ", "=").replace(" =", "=").replace("= ", "=")
              code_snippet = code_snippet.replace(" :", ":").replace(": ", ":")
              code_snippet = code_snippet.replace(" ,", ",").replace(", ", ",")
              code_snippet = code_snippet.replace(" (", "(").replace("( ", "(")
              code_snippet = code_snippet.replace(" )", ")").replace(") ", ")")
              code_snippet = code_snippet.replace(" [", "[").replace("[ ", "[")
              code_snippet = code_snippet.replace(" ]", "]").replace("] ", "]")
              code_snippet = code_snippet.replace(" {", "{").replace("{ ", "{")
              code_snippet = code_snippet.replace(" }", "}").replace("} ", "}")
              code_snippet = code_snippet.replace(" ;", ";").replace("; ", ";")
              code_snippet = code_snippet.replace("  ", " ")
              return code_snippet
          elif "name" in str(e):
              lines = code_snippet.split('\n')
              for i, line in enumerate(lines):
                  if "=" not in line and "def" not in line and "class" not in line:
                      lines[i] = f"try:\n    {line}\nexcept NameError:\n    print('NameError: Name \\'{line.strip()}\\' is not defined')"
              return '\n'.join(lines)
          else:
              return code_snippet