我正在尝试安装pyclipper以与nototools. https://github.com/googlefonts/nototools一起使用，但我无法安装pyclipper。我认为Visual Studio buildtools有一些问题。
Collecting pyclipper==1.1.0.post1
Using cached pyclipper-1.1.0.post1.zip (135 kB)
Installing build dependencies ... done
Getting requirements to build wheel ... done
Preparing wheel metadata ... done
Building wheels for collected packages: pyclipper
Building wheel for pyclipper (PEP 517) ... error
ERROR: Command errored out with exit status 1:
command: 'c:\users\phuwi\appdata\local\programs\python\python39\python.exe' 'c:\users\phuwi\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\pep517\_in_process.py' build_wheel 'C:\Users\phuwi\AppData\Local\Temp\tmpwa7t8eac'
cwd: C:\Users\phuwi\AppData\Local\Temp\pip-install-ejg_l8me\pyclipper_be85d240fbf84e1388f6c535a16010eb
Complete output (26 lines):
Distribution mode: Compiling Cython generated .cpp sources.
running bdist_wheel
running build
running build_ext
building 'pyclipper' extension
creating build
creating build\temp.win-amd64-3.9
creating build\temp.win-amd64-3.9\Release
creating build\temp.win-amd64-3.9\Release\pyclipper
C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.28.29333\bin\HostX86\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -Ic:\users\phuwi\appdata\local\programs\python\python39\include -Ic:\users\phuwi\appdata\local\programs\python\python39\include -IC:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.28.29333\include -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\ucrt -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\shared -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\um -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\winrt -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\cppwinrt /EHsc /Tppyclipper/clipper.cpp /Fobuild\temp.win-amd64-3.9\Release\pyclipper/clipper.obj
clipper.cpp
C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.28.29333\bin\HostX86\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -Ic:\users\phuwi\appdata\local\programs\python\python39\include -Ic:\users\phuwi\appdata\local\programs\python\python39\include -IC:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.28.29333\include -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\ucrt -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\shared -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\um -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\winrt -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\cppwinrt /EHsc /Tppyclipper/pyclipper.cpp /Fobuild\temp.win-amd64-3.9\Release\pyclipper/pyclipper.obj
pyclipper.cpp
pyclipper/pyclipper.cpp(7938): warning C4267: '=': conversion from 'size_t' to 'int', possible loss of data
pyclipper/pyclipper.cpp(8068): warning C4267: '=': conversion from 'size_t' to 'int', possible loss of data
pyclipper/pyclipper.cpp(9405): error C2039: 'tp_print': is not a member of '_typeobject'
c:\users\phuwi\appdata\local\programs\python\python39\include\cpython/object.h(193): note: see declaration of '_typeobject'
pyclipper/pyclipper.cpp(9413): error C2039: 'tp_print': is not a member of '_typeobject'
c:\users\phuwi\appdata\local\programs\python\python39\include\cpython/object.h(193): note: see declaration of '_typeobject'
pyclipper/pyclipper.cpp(9421): error C2039: 'tp_print': is not a member of '_typeobject'
c:\users\phuwi\appdata\local\programs\python\python39\include\cpython/object.h(193): note: see declaration of '_typeobject'
pyclipper/pyclipper.cpp(9427): error C2039: 'tp_print': is not a member of '_typeobject'
c:\users\phuwi\appdata\local\programs\python\python39\include\cpython/object.h(193): note: see declaration of '_typeobject'
pyclipper/pyclipper.cpp(10553): warning C4996: '_PyUnicode_get_wstr_length': deprecated in 3.3
pyclipper/pyclipper.cpp(10569): warning C4996: '_PyUnicode_get_wstr_length': deprecated in 3.3
error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\BuildTools\\VC\\Tools\\MSVC\\14.28.29333\\bin\\HostX86\\x64\\cl.exe' failed with exit code 2
----------------------------------------
ERROR: Failed building wheel for pyclipper
Failed to build pyclipper
ERROR: Could not build wheels for pyclipper which use PEP 517 and cannot be installed directly ```
3条答案
按热度按时间btxsgosb1#
在Python 3.9中，
tp_print方法从API中被移除。错误“'tp_print'：is not a member of '_typeobject'”意味着这段代码适用于Python〈= 3.8。请降级到Python 3.8并重试。
pyclipper刚刚发布了1.2.1版本，带有Python 3.9的wheels。PS.永远不要急于更新Python的主要版本，等到你所有的第三方库都适应了。
xvw2m8pv2#
正如@phd正确指出的那样，从Python 3.9开始，
tp_print就被删除了。在此（以及其他类似的问题）C/C 代码是由Cython生成的，而不是手写的。Cython制作扩展模块的好处之一是它可以维护，并且可以跟上Python的变化。因此，只需重新生成C/C 代码，就可以很容易地使模块再次兼容用最新版本的Cython编写代码。对于这个特定的例子，PyClipper包含两种构建模块的方法：第一种方法只是编译预先生成的C代码，而第二种方法使用Cython重新生成C代码，使用第二种方法重新生成代码就可以解决您的问题。https://github.com/fonttools/pyclipper/blob/master/README.rst#install. The first just compiles the pre-generated C++ code while the second regenerates the C++ code using Cython. Using the second method to rebuild it would have solved your problem.
碰巧的是，PyClipper现在已经更新了他们自己的模块，所以这不再是必要的，但是对于其他因为类似错误而失败的模块，值得考虑用新版本的Cython重新生成C/C ++代码。
lp0sw83n3#
我的解决方案非常简单，把下面的 requirements 放到 buildozer.spec 文件中，其中的版本号（即3.6.9）与我安装在系统中的python版本相匹配
这就消除了我所有的cython错误，builodozer完成了构建，这样我就有了一个可以安装的bin文件。
作为一个警告，这对我来说不是故事的结尾;然后是lead to this error，我还没有找到解决方案。