无法使用 pip 安装 package bpy

Question

问题描述：在 VS Code 中，运行命令pip install bpy （如https://pypi.org/project/bpy/ 所示）并得到以下错误消息：

PS C:\Users\(...)\Local\Programs\Python\Python38> pip install bpy
Collecting bpy
  Using cached bpy-0.0.0a0.tar.gz (19 kB)
    ERROR: Command errored out with exit status 1:
     command: 'c:\users\(...)\local\programs\python\python38\python.exe' -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\(...)\\Local\\Temp\\pip-install-xln6pb4c\\bpy\\setup.py'"'"'; __file__='"'"'C:\\Users\\(...)\\Local\\Temp\\pip-install-xln6pb4c\\bpy\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base 'C:\Users\(...)\Local\Temp\pip-pip-egg-info-0pdk7e9q'
         cwd: C:\Users\(...)\Local\Temp\pip-install-xln6pb4c\bpy\
    Complete output (16 lines):
    Traceback (most recent call last):
      File "c:\users\(...)\local\programs\python\python38\lib\tokenize.py", line 342, in find_cookie
        codec = lookup(encoding)
    LookupError: unknown encoding: future_fstrings
    During handling of the above exception, another exception occurred:
      File "<string>", line 1, in <module>
      File "c:\users\(...)\local\programs\python\python38\lib\tokenize.py", line 394, in open
        encoding, lines = detect_encoding(buffer.readline)
      File "c:\users\(...)\local\programs\python\python38\lib\tokenize.py", line 381, in detect_encoding
        encoding = find_cookie(second)
      File "c:\users\(...)\local\programs\python\python38\lib\tokenize.py", line 350, in find_cookie
        raise SyntaxError(msg)
    SyntaxError: unknown encoding for 'C:\\Users\\(...)\\Local\\Temp\\pip-install-xln6pb4c\\bpy\\setup.py': future_fstrings
    ----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output. code here

-------我尝试过的（没有成功）：-------

安装轮子（pip install wheel），然后从pypi.org下载package手动安装： pip install 'C:\Users(...)\Downloads\bpy-2.82.1.tar.gz'得到同样的错误。

--------结论：--------

不能在 Blender 之外使用 bpy。 我在Blender Stack Exchange上的另一篇文章中找到了一些解决方法（我还没有尝试过）感谢 Anand 和 phd 提供了非常有用的链接！

Answer 1

据我了解，实际上可以在搅拌机之外运行 bpy ，并且声称其他信息是为旧版本编写的。 我不得不承认，我仍在安装 bpy，这不是一件容易的事，我还无法验证这一点。

在您的情况下，缺少 pip 模块。 您可以使用pip install future_fstrings安装它。 查看https://pypi.org/project/bpy/了解更多指南。

编辑：我能够在 Windows 和 Linux 下安装 bpy。 它会在 Linux 上引发一些错误，但在 Windows 下工作正常。 并且绝对独立工作！

Answer 2

我使用了很多试验和错误，并发现使用Python版本3.7.6和Z62AD1C2A46C5298F3E2C95C95D3BABF8D3BABF8D3BABF8D0CZ版本由20.2.2.2.2.4，我to Z.2.4，我to Z.2.4，i -2.2.4.2.24.24.288288248824824882488248824.2AR。 我正在使用 Windows 10 和 Anaconda 提示符。

Answer 3

TL：DR- 从预制轮安装，而不是从标准pip install bpy && bpy_post_install

---

macOS 安装错误：

在过去的 8 个小时左右，我一直在尝试安装它。

到目前为止我的安装步骤：

• 我按照 blender.org 上的说明从源代码构建了搅拌机应用程序
• 根据bpy github repo-bpy 依赖于 bpy-build（尽管它不在先决条件中）。
• bpy-build github repo 没有很好的安装说明，setup.py 脚本专门将操作系统声明为 windows。 所以，我基本上只是跳过了这个——安装失败的一个可能原因。
• 在两次不同的尝试中，我同时使用了 pyenv 和 virtualenv，来创建 python 3.7 开发环境。 两者都导致pip install bpy在setup.py运行期间挂起安装。 pip 安装的实际错误是：

Collecting bpy
  Using cached https://files.pythonhosted.org/packages/4b/ed/ba6092b691acc5b157891421d9fde4a9dd5dcc8a8b93a4e8119fec261391/bpy-2.82.1.tar.gz
Installing collected packages: bpy
  Running setup.py install for bpy ... error
    ERROR: Command errored out with exit status 1:
     command: /<path-to-venv>/venv/bin/python3 -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/4n/wsjhxhbn0pb11r7cyqcvtxcc0000gn/T/pip-install-m6rixhki/bpy/setup.py'"'"'; __file__='"'"'/private/var/folders/4n/wsjhxhbn0pb11r7cyqcvtxcc0000gn/T/pip-install-m6rixhki/bpy/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /private/var/folders/4n/wsjhxhbn0pb11r7cyqcvtxcc0000gn/T/pip-record-ti3q9j4a/install-record.txt --single-version-externally-managed --compile --install-headers /<path-to-venv>/venv/include/site/python3.7/bpy
         cwd: /private/var/folders/4n/wsjhxhbn0pb11r7cyqcvtxcc0000gn/T/pip-install-m6rixhki/bpy/
    Complete output (58 lines):
    running install
    running build
    running build_py
    creating build
    creating build/lib.macosx-10.9-x86_64-3.7
    creating build/lib.macosx-10.9-x86_64-3.7/blenderpy
    copying blenderpy/__init__.py -> build/lib.macosx-10.9-x86_64-3.7/blenderpy
    copying blenderpy/pre_uninstall.py -> build/lib.macosx-10.9-x86_64-3.7/blenderpy
    copying blenderpy/post_install.py -> build/lib.macosx-10.9-x86_64-3.7/blenderpy
    running build_ext
    Preparing the build environment
    Searching for compatible Blender online (this will take a while)
    Found compatible Blender version 2.82
    Cloning Blender source from git (this will take a while)
    Cloning precompiled libs from svn (this will take a while)
    cmake -DWITH_PYTHON_INSTALL=OFF -DWITH_PYTHON_MODULE=ON -DWITH_OPENMP=OFF -DWITH_AUDASPACE=OFF -S/private/var/folders/4n/wsjhxhbn0pb11r7cyqcvtxcc0000gn/T/pip-install-m6rixhki/bpy/build/temp.macosx-10.9-x86_64-3.7/blender -B/private/var/folders/4n/wsjhxhbn0pb11r7cyqcvtxcc0000gn/T/pip-install-m6rixhki/bpy/build/temp.macosx-10.9-x86_64-3.7/build
    -- The C compiler identification is AppleClang 12.0.5.12050022
    -- The CXX compiler identification is AppleClang 12.0.5.12050022
    -- Detecting C compiler ABI info
    -- Detecting C compiler ABI info - done
    -- Check for working C compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc - skipped
    -- Detecting C compile features
    -- Detecting C compile features - done
    -- Detecting CXX compiler ABI info
    -- Detecting CXX compiler ABI info - done
    -- Check for working CXX compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++ - skipped
    -- Detecting CXX compile features
    -- Detecting CXX compile features - done
    -- Detected OS X 11.3 and Xcode 12. at /Applications/Xcode.app
    -- OSX_SYSROOT_PREFIX: /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform
    -- Setting deployment target to 10.11, lower versions are not supported
    CMake Warning at CMakeLists.txt:580 (message):
      WITH_OPENAL requires WITH_AUDASPACE which is disabled


    CMake Warning at CMakeLists.txt:584 (message):
      WITH_JACK requires WITH_AUDASPACE which is disabled


    -- WITH_DRACO requires WITH_PYTHON_INSTALL to be ON, disabling WITH_DRACO for now
    -- Performing Test SUPPORT_SSE_BUILD
    -- Performing Test SUPPORT_SSE_BUILD - Success
    -- SSE Support: detected.
    -- Performing Test SUPPORT_SSE2_BUILD
    -- Performing Test SUPPORT_SSE2_BUILD - Success
    -- SSE2 Support: detected.
    -- Found Git: /usr/bin/git (found version "2.30.1 (Apple Git-130)")
    CMake Error at build_files/cmake/platform/platform_apple.cmake:38 (message):
      Mac OSX requires pre-compiled libs at:
      '/private/var/folders/4n/wsjhxhbn0pb11r7cyqcvtxcc0000gn/T/pip-install-m6rixhki/bpy/build/temp.macosx-10.9-x86_64-3.7/blender/../lib/darwin'
    Call Stack (most recent call first):
      CMakeLists.txt:808 (include)


    -- Configuring incomplete, errors occurred!
    See also "/private/var/folders/4n/wsjhxhbn0pb11r7cyqcvtxcc0000gn/T/pip-install-m6rixhki/bpy/build/temp.macosx-10.9-x86_64-3.7/build/CMakeFiles/CMakeOutput.log".
    See also "/private/var/folders/4n/wsjhxhbn0pb11r7cyqcvtxcc0000gn/T/pip-install-m6rixhki/bpy/build/temp.macosx-10.9-x86_64-3.7/build/CMakeFiles/CMakeError.log".
    error: command 'cmake' failed with exit status 1
    ----------------------------------------
ERROR: Command errored out with exit status 1: /<path to venv>/venv/bin/python3 -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/4n/wsjhxhbn0pb11r7cyqcvtxcc0000gn/T/pip-install-m6rixhki/bpy/setup.py'"'"'; __file__='"'"'/private/var/folders/4n/wsjhxhbn0pb11r7cyqcvtxcc0000gn/T/pip-install-m6rixhki/bpy/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /private/var/folders/4n/wsjhxhbn0pb11r7cyqcvtxcc0000gn/T/pip-record-ti3q9j4a/install-record.txt --single-version-externally-managed --compile --install-headers /<path to venv>/venv/include/site/python3.7/bpy Check the logs for full command output.

---

**** 突破 **** 在写这篇文章时，我注意到 bpy github 页面中的选项通过预构建轮安装，而不是通常的pip install bpy && bpy_post_install 。 你必须 go 到一些“粗略”的网站来下载文件，但是在我下载并安装它之后，我能够在搅拌机应用程序之外运行搅拌机脚本！

Answer 4

我猜您无法安装 bpy，因为您正在通过 python 3.8 版本安装 bpy。 您已经将python version to 3.7

查看https://pypi.org/project/bpy/

然后你可以看到 bpy 模块需要版本Python >=3.7, <3.8

Answer 5

不幸的是，“bpy”模块不能在 Blender 之外使用。

更多细节在这里： https://creativepolygon.com/development/starting-with-bpy-blender-python-part-1-installation