通过套接字发送Python对象

Question

我有一个问题，然后通过套接字发送列表，它必须是字节样的对象，好吧，我可以转换它字符串，然后做. encode（utf-8），但问题是字符串，这是很难重建它
列表从字符串，和literal_eval（）从ast库
没有工作，然后我有这样的东西：

[("Something", datetime.datetime(2021, 12, 11, 0, 0))]

这就是问题所在，我必须拥有这些对象，我的问题是如何发送python对象而不需要将其转换为字符串，或者类似于JSON之类的对象符号？

这可以通过Python套接字文档在基本套接字服务器上进行测试。

失败的文本评估：

from ast import literal_eval
new_line = literal_eval("[(2, 2.0, 'MS-0150886', 'B1A', 'MP5 TEST IS HERE!', None, None, datetime.datetime(2021, 8, 13, 0, 0), datetime.datetime(2021, 8, 13, 0, 0), 38.0, None, None, '1', None, None, None, 1.0, None, 1.0, 'KS-005418-2', 'KS-005419-1', 'SPRAWDZ 9', None, None, None, 1.0, None, None, None, None, 1.0, 1)]")
print(new_line)
print(type(new_line))

错误：

Traceback (most recent call last):
  File "C:\I deleted\this path\test.py", line 3, in <module>
    new_line = literal_eval("[(2, 2.0, 'MS-0150886', 'B1A', 'MP5 TEST IS HERE!', None, None, datetime.datetime(2021, 8, 13, 0, 0), datetime.datetime(2021, 8, 13, 0, 0), 38.0, None, None, '1', None, None, None, 1.0, None, 1.0, 'KS-005418-2', 'KS-005419-1', 'SPRAWDZ 9', None, None, None, 1.0, None, None, None, None, 1.0, 1)]")
  File "C:\Program Files\Python39\lib\ast.py", line 105, in literal_eval
    return _convert(node_or_string)
  File "C:\Program Files\Python39\lib\ast.py", line 85, in _convert
    return list(map(_convert, node.elts))
  File "C:\Program Files\Python39\lib\ast.py", line 83, in _convert
    return tuple(map(_convert, node.elts))
  File "C:\Program Files\Python39\lib\ast.py", line 104, in _convert
    return _convert_signed_num(node)
  File "C:\Program Files\Python39\lib\ast.py", line 78, in _convert_signed_num
    return _convert_num(node)
  File "C:\Program Files\Python39\lib\ast.py", line 69, in _convert_num
    _raise_malformed_node(node)
  File "C:\Program Files\Python39\lib\ast.py", line 66, in _raise_malformed_node
    raise ValueError(f'malformed node or string: {node!r}')
ValueError: malformed node or string: <ast.Call object at 0x000001B82F7CDDF0>

Answer 1

你试过泡菜了吗？

import pickle

# Client
data = [("Something", datetime.datetime(2021, 12, 11, 0, 0))]
s.sendall(pickle.dumps(data))

# Server
data = pickle.loads(conn.recv(1024))
print(data)