无法导入blpapi

Question

我几乎花了很多时间试图让bloomberg API与我的Python2.7安装一起工作，但仍然没有成功。Bloomberg HelpDesk不再支持它，因此没有他们的帮助。任何帮助都是非常感谢的：

C:\Users\user>python
Python 2.7.16rc1 (v2.7.16rc1:baacaac06f, Feb 16 2019, 22:56:10) [MSC v.1500 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import blpapi
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Python27\lib\site-packages\blpapi\__init__.py", line 11, in <module>
    raise debug_load_error(error)
ImportError:
---------------------------- ENVIRONMENT -----------------------------
Platform: Windows-7-6.1.7601-SP1
Architecture: ('64bit', 'WindowsPE')
Python: 2.7.16rc1 (v2.7.16rc1:baacaac06f, Feb 16 2019, 22:56:10) [MSC v.1500 64 bit (AMD64)]
Python implementation: CPython

blpapi 64-bit will be loaded from: "C:\blp\blpapi_cpp_3.12.3.1\bin\blpapi3_64.dll"
blpapi 32-bit will be loaded from: "C:\blp\blpapi_cpp_3.12.3.1\bin\blpapi3_32.dll"
System PATH: (* marks locations where blpapi was found)
    "C:\Program Files\Java\jdk-12.0.2\bin"
    "C:\Python27\"
    "C:\Python27\Scripts"
    "C:\Windows\system32"
    "C:\Windows"
    "C:\Windows\System32\Wbem"
    "C:\Windows\System32\WindowsPowerShell\v1.0\"
  * "C:\blp\blpapi_cpp_3.12.3.1\bin"

blpapi package at: "C:\Python27\lib\site-packages"

Current directory: "C:\Users\user"

----------------------------------------------------------------------
No module named _versionhelper

Could not open the C++ SDK library.

Download and install the latest C++ SDK from:

    http://www.bloomberg.com/professional/api-library

If the C++ SDK is already installed, please ensure that the path to the library
was added to PATH before entering the interpreter.

Answer 1

此问题通常与由于环境变量设置不正确而无法找到共享库有关。我会看看如何通过Conda安装它。试一试

conda install -c conda-forge blpapi

只要确保您感兴趣的任何python发行版都打包在here上就行了。

Answer 2

我做了两件事来解决类似的问题：

1-我安装了Microsoft Visual Studio，确保具有以下组件：

• C++ /CLI支持
• VC++ 2015.3 v14.00 (v140)工具集，适用于桌面
• C++ x86和x64
• Visual C++ x86和x64

2-我手动将C++API\lib中的.dll文件(在我的例子中是blpapi3_32.dll和blpapi3_64.dll )复制到C:\windows\system32，系统使用的所有dll文件都在C：\windows\SYSTEM32中。

另外，我将C++API\lib中的dll文件复制到C:\blp\DAPI中，用旧文件替换新文件。

不知何故，Path变量不够成功，无法在API文件夹中找到dll。