python：导入libpci会引发SyntaxError

Question

我刚刚在我的机器上安装了libpci：

$ pip2.7 install libpci

试图运行：

#!/usr/local/bin/python2.7
import libpci

print('hello libpci')

但是这会引发以下语法错误：

Traceback (most recent call last):
  File "./test.py", line 2, in <module>
    import libpci
  File "/usr/local/lib/python2.7/site-packages/libpci/__init__.py", line 26, in <module>
    from libpci.wrapper import LibPCI
  File "/usr/local/lib/python2.7/site-packages/libpci/wrapper.py", line 26, in <module>
    from libpci._functions import pci_alloc
  File "/usr/local/lib/python2.7/site-packages/libpci/_functions.py", line 39
    def pci_alloc() -> ctypes.POINTER(pci_access):
                    ^
SyntaxError: invalid syntax

如何在libpci中引发SyntaxError？
是因为我错过了一些依赖吗？

Answer 1

libpci project需要Python 3.4或更高版本。从项目标签：

Categories
[...]
Programming Language :: Python :: 3
Programming Language :: Python :: 3.4

引发语法错误，因为项目使用{3}}（Python 3功能）配置ctypes图层，请参阅annotations。