Question

我通过pip安装nfcpy，但我很难设置它。在python shell中运行时，会出现以下错误：

>>> import nfc
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python2.7/site-packages/nfc/__init__.py", line 28, in <module>
    from clf import ContactlessFrontend
  File "/usr/local/lib/python2.7/site-packages/nfc/clf/__init__.py", line 34, in <module>
    import nfc.llcp
  File "/usr/local/lib/python2.7/site-packages/nfc/llcp/__init__.py", line 31, in <module>
    from llc import LOGICAL_DATA_LINK, DATA_LINK_CONNECTION
  File "/usr/local/lib/python2.7/site-packages/nfc/llcp/llc.py", line 41, in <module>
    from . import sec
  File "/usr/local/lib/python2.7/site-packages/nfc/llcp/sec.py", line 490, in <module>
    OpenSSL = OpenSSLWrapper(libcrypto)
  File "/usr/local/lib/python2.7/site-packages/nfc/llcp/sec.py", line 183, in __init__
    self.crypto.EC_KEY_set_public_key_affine_coordinates.restype = c_int
  File "/usr/local/Cellar/python/2.7.10/Frameworks/Python.framework/Versions/2.7/lib/python2.7/ctypes/__init__.py", line 378, in __getattr__
    func = self.__getitem__(name)
  File "/usr/local/Cellar/python/2.7.10/Frameworks/Python.framework/Versions/2.7/lib/python2.7/ctypes/__init__.py", line 383, in __getitem__
    func = self._FuncPtr((name_or_ordinal, self))
AttributeError: dlsym(0x7f81ca493370, EC_KEY_set_public_key_affine_coordinates): symbol not found

此错误消息的含义是什么，以及如何修复？

供参考，我使用以下配置：

操作系统：Mac OSX 10.10.5
NFC阅读器：RC-S380
Python 2.7.10
pip 8.1.2
nfcpy（0.11.1）

Answer 1

以下是@ I＆＃39; L＆＃39;我在评论中的正确答案的重述：

您的自制软件缺少必需的OpenSSL依赖项。您可以通过自制软件，Macports安装OpenSSL，也可以自己编译和构建库。

nfcpy：“找不到符号”？

1 个答案: