在 Python 中安装 qmcpy

Question

我未能在 Python 3 中安装“准 Monte Carlo 框架”qmcpy。

我用 pip install qmcpy、conda install qmcpy 试过了。我还下载了 tar.gz file from the project page 并尝试手动安装。没有任何效果。

我得到了一个很长的错误输出（我什至在这里删除了一部分，因为它太大了）：

Building wheels for collected packages: qmcpy
  Building wheel for qmcpy (setup.py) ... error
  ERROR: Command errored out with exit status 1:
   command: 'C:\Users\anaconda3\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\Users\\AppData\Local\Temp\pip-install-ob2g99v7\qmcpy\setup.py'"'"'; __file__='"'"'C:\Users\\AppData\Local\Temp\pip-install-ob2g99v7\qmcpy\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d 'C:\Users\AppData\Local\Temp\pip-wheel-rvxfgit_'
       cwd: C:\Users\AppData\Local\Temp\pip-install-ob2g99v7\qmcpy\
  Complete output (102 lines):
  running bdist_wheel
  running build
  running build_py
  creating build
  creating build\lib.win-amd64-3.8
  creating build\lib.win-amd64-3.8\qmcpy
  copying qmcpy\__init__.py -> build\lib.win-amd64-3.8\qmcpy
  creating build\lib.win-amd64-3.8\qmcpy\discrete_distribution\sobol
  copying qmcpy\discrete_distribution\sobol\sobol.py -> build\lib.win-amd64-3.8\qmcpy\discrete_distribution\sobol
  copying qmcpy\discrete_distribution\sobol\__init__.py -> build\lib.win-amd64-3.8\qmcpy\discrete_distribution\sobol
  running egg_info
  writing qmcpy.egg-info\PKG-INFO
  writing dependency_links to qmcpy.egg-info\dependency_links.txt
  writing requirements to qmcpy.egg-info\requires.txt
  writing top-level names to qmcpy.egg-info\top_level.txt
  reading manifest file 'qmcpy.egg-info\SOURCES.txt'
  reading manifest template 'MANIFEST.in'
  writing manifest file 'qmcpy.egg-info\SOURCES.txt'
  creating build\lib.win-amd64-3.8\qmcpy\discrete_distribution\sobol\generating_matricies
  copying qmcpy\discrete_distribution\sobol\generating_matricies\sobol_mat.21201.32.lsb.npy -> build\lib.win-amd64-3.8\qmcpy\discrete_distribution\sobol\generating_matricies
  copying qmcpy\discrete_distribution\sobol\generating_matricies\sobol_mat.21201.32.msb.npy -> build\lib.win-amd64-3.8\qmcpy\discrete_distribution\sobol\generating_matricies
  copying qmcpy\discrete_distribution\sobol\generating_matricies\sobol_mat.51.30.msb.npy -> build\lib.win-amd64-3.8\qmcpy\discrete_distribution\sobol\generating_matricies
  running build_ext
  building 'qmcpy.discrete_distribution.c_lib.c_lib' extension
  error: Microsoft Visual C++ 14.0 or greater is required. Get it with "Microsoft C++ Build Tools": https://visualstudio.microsoft.com/visual-cpp-build-tools/

如何安装这个包？

Answer 1

您应该尝试安装错误消息抱怨您没有安装的 Microsoft C++ 构建工具。

Answer 2

如果您查看输出的最后一行 error:，您就会看到问题及其解决方案：

error: Microsoft Visual C++ 14.0 or greater is required. Get it with "Microsoft C++ Build Tools": https://visualstudio.microsoft.com/visual-cpp-build-tools/

它给你一个link下载所需的：

Microsoft C++ Build Tools

如果您转到 link 并单击 下载按钮 然后运行安装程序您终于 满足了先决条件。然后你可以再次开始构建，这个错误应该消失了。

在 Python 中安装 qmcpy

Installing qmcpy in Python

python

pip

package