Python 3.4.1 make test失败:错误: test_connect_starttls (test.test_smtpnet.SmtpTest)

Question

我刚刚在我的centos 6.4虚拟机上下载了python 3.4.1，并按照自述文件中的说明进行操作。首先是./configure，然后是make，最后是make test。

当我运行make test时，它有一个错误，我不知道为什么，我只是完全按照给出的指令操作。下面是输出：

test test_smtpnet failed -- Traceback (most recent call last):
  File "/usr/local/Python-3.4.1/Lib/test/test_smtpnet.py", line 30, in test_connect_starttls
    server = smtplib.SMTP(self.testServer, self.remotePort)
  File "/usr/local/Python-3.4.1/Lib/smtplib.py", line 242, in __init__
    (code, msg) = self.connect(host, port)
  File "/usr/local/Python-3.4.1/Lib/smtplib.py", line 321, in connect
    self.sock = self._get_socket(host, port, self.timeout)
  File "/usr/local/Python-3.4.1/Lib/smtplib.py", line 292, in _get_socket
    self.source_address)
  File "/usr/local/Python-3.4.1/Lib/socket.py", line 509, in create_connection
    raise err
  File "/usr/local/Python-3.4.1/Lib/socket.py", line 495, in create_connection
    sock = socket(af, socktype, proto)
  File "/usr/local/Python-3.4.1/Lib/socket.py", line 123, in __init__
    _socket.socket.__init__(self, family, type, proto, fileno)
OSError: [Errno 97] Address family not supported by protocol
368 tests OK.
1 test failed:
    test_smtpnet
7 tests altered the execution environment:
    test_calendar test_float test_locale test_site test_strptime
    test_types test_warnings
12 tests skipped:
    test_curses test_devpoll test_gdb test_kqueue test_msilib
    test_ossaudiodev test_startfile test_tk test_ttk_guionly
    test_winreg test_winsound test_zipfile64
Re-running failed tests in verbose mode
Re-running test 'test_smtpnet' in verbose mode
test_connect_starttls (test.test_smtpnet.SmtpTest) ... ERROR
test_connect (test.test_smtpnet.SmtpSSLTest) ... ok
test_connect_default_port (test.test_smtpnet.SmtpSSLTest) ... ok
test_connect_using_sslcontext (test.test_smtpnet.SmtpSSLTest) ... ok
test_connect_using_sslcontext_verified (test.test_smtpnet.SmtpSSLTest) ... ok

======================================================================
ERROR: test_connect_starttls (test.test_smtpnet.SmtpTest)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/usr/local/Python-3.4.1/Lib/test/test_smtpnet.py", line 30, in test_connect_starttls
    server = smtplib.SMTP(self.testServer, self.remotePort)
  File "/usr/local/Python-3.4.1/Lib/smtplib.py", line 242, in __init__
    (code, msg) = self.connect(host, port)
  File "/usr/local/Python-3.4.1/Lib/smtplib.py", line 321, in connect
    self.sock = self._get_socket(host, port, self.timeout)
  File "/usr/local/Python-3.4.1/Lib/smtplib.py", line 292, in _get_socket
    self.source_address)
  File "/usr/local/Python-3.4.1/Lib/socket.py", line 509, in create_connection
    raise err
  File "/usr/local/Python-3.4.1/Lib/socket.py", line 495, in create_connection
    sock = socket(af, socktype, proto)
  File "/usr/local/Python-3.4.1/Lib/socket.py", line 123, in __init__
    _socket.socket.__init__(self, family, type, proto, fileno)
OSError: [Errno 97] Address family not supported by protocol

----------------------------------------------------------------------
Ran 5 tests in 42.864s

FAILED (errors=1)
test test_smtpnet failed
make: *** [test] Error 1

因此，_socket模块似乎尝试使用协议不支持的“地址族”(不管它是什么)。这个例外可以更模糊一些吗？

有人知道我错过了什么吗？

Answer 1

看起来测试用例确实需要启用IPv6。因此，在未启用IPv6支持的系统上，它将失败。检查ip a s的输出，查看VM是否设置了IPv6地址，例如，通常以fe80::开头。地址族可以是用于IPv4的AF_INET或用于IPv6的AF_INET6。实际上，这是一个测试用例错误。