我下载了适用于Windows 10的QuantLib-SWIG-1.19
我能够构建并安装python版本
但当它尝试运行build_ext时,测试失败
SET QL_DIR=C:\Users\admuser\Workspace\QuantLib-1.19
SET INCLUDE=C:\Users\admuser\ThirdParty\boost_1_74_0;%INCLUDE%
SET LIB=C:\Users\admuser\ThirdParty\boost_1_74_0;%LIB%
set PATH=%PATH%;C:\Users\admuser\ThirdParty\swigwin\swigwin-4.0.2
cd C:\Users\admuser\Workspace\QuantLib-SWIG-1.19\Python
调用以下命令
python setup.py build
python setup.py install
python setup.py test
python setup.py测试未通过内部版本扩展
running test
running build
running build_py
running build_ext
Traceback (most recent call last):
File "setup.py", line 237, in <module>
setup(name = "QuantLib",
File "C:\Users\admuser\ThirdParty\WinPython\python-3.8.2.amd64\lib\site-packages\setuptools\__init__.py", line 144, in setup
return distutils.core.setup(**attrs)
File "C:\Users\admuser\ThirdParty\WinPython\python-3.8.2.amd64\lib\distutils\core.py", line 148, in setup
dist.run_commands()
File "C:\Users\admuser\ThirdParty\WinPython\python-3.8.2.amd64\lib\distutils\dist.py", line 966, in run_commands
self.run_command(cmd)
File "C:\Users\admuser\ThirdParty\WinPython\python-3.8.2.amd64\lib\distutils\dist.py", line 985, in run_command
cmd_obj.run()
File "setup.py", line 61, in run
module = __import__('QuantLibTestSuite', globals(), locals(), [''])
File "test\QuantLibTestSuite.py", line 22, in <module>
from date import DateTest
File "test\date.py", line 18, in <module>
import QuantLib as ql
File "build\lib.win-amd64-3.8\QuantLib\__init__.py", line 21, in <module>
from .QuantLib import *
File "build\lib.win-amd64-3.8\QuantLib\QuantLib.py", line 13, in <module>
from . import _QuantLib
ImportError: DLL load failed while importing _QuantLib: The parameter is incorrect.
setup.py build创建了一个包含临时目录和lib目录的文件夹:
QuantLib-SWIG-1.19\Python\build\lib.win-amd64-3.8\QuantLib
which contains
__init__.py
_QuantLib.cp38-win_amd64.pyd
QuantLib.py
setup.py安装添加:
QuantLib-SWIG-1.19\Python\QuantLib.egg-info
QuantLib-SWIG-1.19\Python\build\lib.win-amd64-3.8\QuantLib\__pycache__
python-3.8.2.amd64\Lib\site-packages\QuantLib-1.19-py3.8-win-amd64.egg
python-3.8.2.amd64\Lib\site-packages\QuantLib-1.19-py3.8-win-amd64.egg\QuantLib
which contains:
__pycache__ folder
__init__.py
_QuantLib.cp38-win_amd64.pyd
_QuantLib.py
QuantLib.py
所以我尝试导入QuantLib:
我打开了一个管理命令提示符窗口,它可以工作:
C:\WINDOWS\system32>python
Python 3.8.2 (tags/v3.8.2:7b3ab59, Feb 25 2020, 23:03:10) [MSC v.1916 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import QuantLib as ql
>>> QuantLib.__file__
'C:\\Users\\admuser\\ThirdParty\\WinPython\\python-3.8.2.amd64\\lib\\site-packages\\quantlib-1.19-py3.8-win-amd64.egg\\QuantLib\\__init__.py'
>>>
但随后我将cd C:\Users\admuser\Workspace\QuantLib-SWIG-1.19\Python
(我需要在那里刻录cd才能运行python setup.py)
C:\Users\admuser\Workspace\QuantLib-SWIG-1.19\Python>python
Python 3.8.2 (tags/v3.8.2:7b3ab59, Feb 25 2020, 23:03:10) [MSC v.1916 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>>import QuantLib as ql
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Users\admuser\Workspace\QuantLib-SWIG-1.19\Python\QuantLib\__init__.py", line 21, in <module>
from .QuantLib import *
File "C:\Users\admuser\Workspace\QuantLib-SWIG-1.19\Python\QuantLib\QuantLib.py", line 13, in <module>
from . import _QuantLib
ImportError: cannot import name '_QuantLib' from partially initialized module 'QuantLib' (most likely due to a circular import) (C:\Users\admuser\Workspace\QuantLib-SWIG-1.19\Python\QuantLib\__init__.py)
>>>
´´´
在我上面的描述中,如果不在Quantlib-SWIG-1.19\python目录中,可以从命令行python提示符导入Quantlib
这是因为python在site packages文件夹中查找,该文件夹中有引导文件_QuantLib.py
如果您在QuantLib-SWIG-1.19\Python目录中,它将在QuantLib-SWIG-1.19\Python\QuantLib目录中查找,该目录没有_QuantLib.py或关联的_QuantLib.cp38-win_amd64.pyd文件
为了实现这一点,我们直接加载了_QuantLib模块:
来自QuantLib.py
在“来自”的陈述之上。导入_QuantLib'找不到_QuantLib
因此,我们尝试直接加载它:
我可能应该检测这是否是QuantLib模块的站点包版本,然后只需调用“from”。导入_QuantLib'
我们需要设置PYTHONPATH(如果我们不使用site\u包版本):
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