PyQt5 installation error (QtCore Module Error: Unable to create the C++ code)

Question

我正在尝试在我的 PC 上安装 PyQt5 以访问 QtDesigner。

我在安装过程中遇到以下错误：

$ python3 configure.py --qmake=/usr/local/Cellar/qt/5.10.1/bin/qmake --sip=/usr/local/Cellar/sip/4.19.8_2/bin/sip
Querying qmake about your Qt installation...
Determining the details of your Qt installation...
This is the GPL version of PyQt 5.7 (licensed under the GNU General Public License) for Python 3.6.3 on darwin.

......
DBus v1 does not seem to be installed.
Qt v5.10.1 is being used.
The qmake executable is /usr/local/Cellar/qt/5.10.1/bin/qmake.
Qt is built as a shared library.
SIP 4.19.8 is being used.
The sip executable is /usr/local/Cellar/sip/4.19.8_2/bin/sip.
The PyQt5 Python package will be installed in
/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages.
PyQt5 is being built with generated docstrings.
PyQt5 is being built with 'protected' redefined as 'public'.
The Designer plugin will be installed in
/usr/local/Cellar/qt/5.10.1/plugins/designer.
The qmlscene plugin will be installed in
/usr/local/Cellar/qt/5.10.1/plugins/PyQt5.
The PyQt5 PEP 484 stub files will be installed in
/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/PyQt5.
The PyQt5 .sip files will be installed in
/Library/Frameworks/Python.framework/Versions/3.6/share/sip/PyQt5.
pyuic5, pyrcc5 and pylupdate5 will be installed in
/Library/Frameworks/Python.framework/Versions/3.6/bin.
The interpreter used by pyuic5 is python3.6.
Generating the C++ source for the QtCore module...
Error: Unable to create the C++ code.

安装环境：

macOS Sierra（版本 10.12.6）

PyQt5 GPL 5.7

Qt 5.10

SIP 4.19.8

两个 python 版本，两个版本都试过，但问题相同。

$ python --version
Python 2.7.14

$ python3 --version
Python 3.6.3

按照自述文件说明进行安装：使用以下安装 Qt：

$ brew install qt
Error: Xcode alone is not sufficient on Sierra.
Install the Command Line Tools:
 xcode-select --install

$ xcode-select --install
xcode-select: note: install requested for command line developer tools

$ brew install qt
Updating Homebrew...
==> Summary /usr/local/Cellar/qt/5.10.1: 9,375 files, 295.2MB

然后使用以下方法安装 SIP：

$brew install sip
==> Installing dependencies for sip: gdbm, openssl, readline, sqlite, xz, python, python@2
==> Summary /usr/local/Cellar/sip/4.19.8_2: 16 files, 1.1MB

更新：在配置命令中使用 --verbose 选项：

Generating the C++ source for the QtCore module...
/usr/local/Cellar/sip/4.19.8_2/bin/sip -w -f -t WS_MACX -t Qt_5_10_1 -B Qt_6_0_0 -P -o -y QtCore.pyi -c /Users/apple/Desktop/Python/PyQt5_gpl-5.7/QtCore -I sip -I /Users/apple/Desktop/Python/PyQt5_gpl-5.7/sip /Users/apple/Desktop/Python/PyQt5_gpl-5.7/sip/QtCore/QtCoremod.sip
sip: Deprecation warning: /Users/apple/Desktop/Python/PyQt5_gpl-5.7/sip/QtCore/QtCoremod.sip:23: %Module version numbers are deprecated and ignored
Error: Unable to create the C++ code.

请指教如何解决这个错误。

感谢您的支持

Answer 1

设法解决了，问题与使用的 SIP 版本有关。

我用的是兼容PyQt5 5.7的SIP版本，是SIP 4.18.1，问题解决了。

下一步：

$make

我遇到了另一个问题：

error: 'WindowOkButtonHint' : is not a member of 'Qt'
error: 'WindowCancelButtonHint' : is not a member of 'Qt'

为了解决这个问题，我编辑了 ~/QtCore/sipQtCoreQt.cpp 文件并删除了 2 条有问题的行。

http://patchwork.ozlabs.org/patch/720187/

Answer 2

同样的问题！

第一个：

sudo python configure_ng.py --verbose

--详细参数以查看更多详细信息

然后显示：

不支持 sip -B

所以我修改configure_ng.py

Answer 3

我听从了上面@armyoung 的建议，结果成功了。 :)

修改configure_ng.py的确切方法是找到并删除（或注释掉）这两行：

argv.append('-B') 
argv.append('Qt_5_0_0')

PyQt5 installation error (QtCore Module Error: Unable to create the C++ code)

PyQt5 installation error (QtCore Module Error: Unable to create the C++ code)

python

macos

pyqt

python-sip

pyqt5