我已经在另一台电脑上安装了一次pyqt5。
我正在尝试在我的笔记本上安装 pyqt5。
我的笔记本电脑规格是： 64 位 AMD 锐龙 7 5800H MS Windows 10 专业版
我尝试过：
> pip install pyqt5 Using cached PyQt5-5.15.6.tar.gz (3.2 MB)
Installing build dependencies ... error
error: subprocess-exited-with-error
× pip subprocess to install build dependencies did not run successfully.
│ exit code: 1
╰─> [140 lines of output]
Collecting sip<7,>=6.4
Using cached sip-6.6.1.tar.gz (1.1 MB)
Installing build dependencies: started
Installing build dependencies: finished with status 'done'
Getting requirements to build wheel: started
Getting requirements to build wheel: finished with status 'done'
Preparing metadata (pyproject.toml): started
Preparing metadata (pyproject.toml): finished with status 'done'
Collecting PyQt-builder<2,>=1.9
Using cached PyQt_builder-1.12.2-py3-none-any.whl (5.6 MB)
Collecting ply
Using cached ply-3.11-py2.py3-none-any.whl (49 kB)
Collecting toml
Using cached toml-0.10.2-py2.py3-none-any.whl (16 kB)
Collecting packaging
Using cached packaging-21.3-py3-none-any.whl (40 kB)
Collecting setuptools
Using cached setuptools-62.3.2-py3-none-any.whl (1.2 MB)
Collecting pyparsing!=3.0.5,>=2.0.2
Using cached pyparsing-3.0.9-py3-none-any.whl (98 kB)
Building wheels for collected packages: sip
Building wheel for sip (pyproject.toml): started
Building wheel for sip (pyproject.toml): finished with status 'error'
error: subprocess-exited-with-error
Building wheel for sip (pyproject.toml) did not run successfully.
exit code: 1
[105 lines of output]
running bdist_wheel
running build
running build_py
creating build
creating build\lib.mingw_x86_64_clang-cpython-39
creating build\lib.mingw_x86_64_clang-cpython-39\sipbuild
copying sipbuild\abstract_builder.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild
copying sipbuild\abstract_project.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild
copying sipbuild\api.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild
copying sipbuild\argument_parser.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild
copying sipbuild\bindings.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild
copying sipbuild\bindings_configuration.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild
copying sipbuild\buildable.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild
copying sipbuild\builder.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild
copying sipbuild\configurable.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild
copying sipbuild\distutils_builder.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild
copying sipbuild\exceptions.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild
copying sipbuild\installable.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild
copying sipbuild\project.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild
copying sipbuild\pyproject.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild
copying sipbuild\py_versions.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild
copying sipbuild\setuptools_builder.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild
copying sipbuild\version.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild
copying sipbuild\__init__.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild
creating build\lib.mingw_x86_64_clang-cpython-39\sipbuild\distinfo
copying sipbuild\distinfo\distinfo.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\distinfo
copying sipbuild\distinfo\main.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\distinfo
copying sipbuild\distinfo\__init__.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\distinfo
creating build\lib.mingw_x86_64_clang-cpython-39\sipbuild\generator
copying sipbuild\generator\python_slots.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\generator
copying sipbuild\generator\specification.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\generator
copying sipbuild\generator\templates.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\generator
copying sipbuild\generator\utils.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\generator
copying sipbuild\generator\__init__.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\generator
creating build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module
copying sipbuild\module\abi_version.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module
copying sipbuild\module\main.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module
copying sipbuild\module\module.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module
copying sipbuild\module\__init__.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module
creating build\lib.mingw_x86_64_clang-cpython-39\sipbuild\tools
copying sipbuild\tools\build.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\tools
copying sipbuild\tools\install.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\tools
copying sipbuild\tools\sdist.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\tools
copying sipbuild\tools\wheel.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\tools
copying sipbuild\tools\__init__.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\tools
creating build\lib.mingw_x86_64_clang-cpython-39\sipbuild\generator\parser
copying sipbuild\generator\parser\annotations.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\generator\parser
copying sipbuild\generator\parser\instantiations.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\generator\parser
copying sipbuild\generator\parser\parser.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\generator\parser
copying sipbuild\generator\parser\parser_manager.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\generator\parser
copying sipbuild\generator\parser\parsetab.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\generator\parser
copying sipbuild\generator\parser\python_exceptions.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\generator\parser
copying sipbuild\generator\parser\rules.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\generator\parser
copying sipbuild\generator\parser\tokens.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\generator\parser
copying sipbuild\generator\parser\__init__.py -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\generator\parser
creating build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source
creating build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\12
copying sipbuild\module\source\12\apiversions.c -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\12
copying sipbuild\module\source\12\array.c -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\12
copying sipbuild\module\source\12\array.h -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\12
copying sipbuild\module\source\12\bool.cpp -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\12
copying sipbuild\module\source\12\descriptors.c -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\12
copying sipbuild\module\source\12\int_convertors.c -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\12
copying sipbuild\module\source\12\LICENSE -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\12
copying sipbuild\module\source\12\LICENSE-GPL2 -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\12
copying sipbuild\module\source\12\LICENSE-GPL3 -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\12
copying sipbuild\module\source\12\MANIFEST.in -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\12
copying sipbuild\module\source\12\objmap.c -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\12
copying sipbuild\module\source\12\pyproject.toml -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\12
copying sipbuild\module\source\12\qtlib.c -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\12
copying sipbuild\module\source\12\README.in -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\12
copying sipbuild\module\source\12\setup.cfg.in -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\12
copying sipbuild\module\source\12\setup.py.in -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\12
copying sipbuild\module\source\12\sip.h.in -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\12
copying sipbuild\module\source\12\sip.pyi -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\12
copying sipbuild\module\source\12\sip.rst.in -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\12
copying sipbuild\module\source\12\sipint.h -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\12
copying sipbuild\module\source\12\siplib.c -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\12
copying sipbuild\module\source\12\threads.c -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\12
copying sipbuild\module\source\12\voidptr.c -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\12
creating build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\13
copying sipbuild\module\source\13\array.c -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\13
copying sipbuild\module\source\13\array.h -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\13
copying sipbuild\module\source\13\bool.cpp -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\13
copying sipbuild\module\source\13\descriptors.c -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\13
copying sipbuild\module\source\13\int_convertors.c -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\13
copying sipbuild\module\source\13\LICENSE -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\13
copying sipbuild\module\source\13\LICENSE-GPL2 -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\13
copying sipbuild\module\source\13\LICENSE-GPL3 -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\13
copying sipbuild\module\source\13\MANIFEST.in -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\13
copying sipbuild\module\source\13\objmap.c -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\13
copying sipbuild\module\source\13\pyproject.toml -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\13
copying sipbuild\module\source\13\README.in -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\13
copying sipbuild\module\source\13\setup.cfg.in -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\13
copying sipbuild\module\source\13\setup.py.in -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\13
copying sipbuild\module\source\13\sip.h.in -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\13
copying sipbuild\module\source\13\sip.pyi -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\13
copying sipbuild\module\source\13\sip.rst.in -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\13
copying sipbuild\module\source\13\sipint.h -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\13
copying sipbuild\module\source\13\siplib.c -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\13
copying sipbuild\module\source\13\threads.c -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\13
copying sipbuild\module\source\13\voidptr.c -> build\lib.mingw_x86_64_clang-cpython-39\sipbuild\module\source\13
running build_ext
building 'sipbuild.code_generator' extension
error: --plat-name must be one of ('win32', 'win-amd64', 'win-arm32', 'win-arm64')
[end of output]
note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed building wheel for sip
Failed to build sip
ERROR: Could not build wheels for sip, which is required to install pyproject.toml-based projects
[end of output]
note: This error originates from a subprocess, and is likely not a problem with pip.
error: subprocess-exited-with-error
× pip subprocess to install build dependencies did not run successfully.
│ exit code: 1
╰─> See above for output.
note: This error originates from a subprocess, and is likely not a problem with pip.
我搜索了这个错误并尝试了几种解决方案：
> pip install --user --upgrade pip
> pip install pyqt5
> pip3 install pyqt5
> python3 -m pip install PyQt5
> python -m pip install --upgrade pip
> python -m pip install pyqt5
另外，我看到文章说我的python版本是3.10或更高可能会出现问题，所以我尝试将python版本重新安装到3.9。
上述解决方案似乎没有解决问题
我能够通过安装最新的Python版本3.10.5来解决问题，单独更新pip没有帮助。在此之前我使用的是Python 3.8.9。
您可能在计算机上的其他位置安装了不是最新版本的 python，并且您的系统环境变量指向了该版本。确保其他程序或库中没有安装 Python。例如，我在 MSYS2 中安装了 python，一旦我从计算机上卸载它，它就会安装。
对我来说，安装 PyQt5 5.12.2 版本解决了问题。
pip install PyQt5==5.12.2
Pip install PyQtWebEngine==5.12
我遇到了同样的问题，尝试了 slack 和其他来源上可用的所有内容，但再次发现相同的错误，人们建议更新 python 版本，有时 python 版本是运行任何应用程序的限制。这需要解决。然后我们才能继续其他安装。
我尝试过 conda 而不是 pip 或 pip3（pip 和 pip3 无法解决问题，即使在升级后也是如此），这在我的系统上有效。
conda install PyQt5
我最近遇到了这个问题，对我来说“Python 3.7”的一个修复是先安装 pyqt5 sip，然后再安装 pyqt5。
也许对其他人有用。
pip install "PyQt5-sip==12.7.0"
pip install "PyQt5==5.13.1"