I am trying to install PythonQt for a Qt 5.12 application that I am building on windows. Unfortunately, the documentation is super sparse, and I am not at all familiar with using external libraries in my code, or with building projects at all for that matter.
So, I think I'm close. I have a batch script that I think actually built PythonQt. This leaves me with some dlls, exp files, and lib files. Some variants are named PythonQt_QtAll-Qt5-Python38, based on the python version that I am building for, and some are named PythonQt-Qt5-Python38. I have no idea what the distinction is between these, as the documentation is not clear.
I'm not sure where to go from here, I tried following the instructions in this link: https://doc.qt.io/qtcreator/creator-project-qmake-libraries.html, but I don't seem to have any header files to include. I'm pretty sure that I shouldn't just go plopping random header files out of the PythonQt source and into my application.
Here is my batch file, which I think is working, but nothing is certain:
rem Take current dir
set "crt_dir=%~dp0"
rem Go up one level
for %%I in ("%crt_dir%\..") do set "root=%%~fI"
rem Construct python paths
set "pypath=%root%\Python38-32"
set "pylibpath=%pypath%\libs"
rem Set PYTHON_PATH environmental variable permanently
setx PYTHON_PATH %pypath%
setx PYTHON_LIB %pylibpath%
setx PYTHON_VERSION 38
rem Build PythonQt
rem Fairly sure this is the same command as vcvars32.bat
rem https://learn.microsoft.com/en-us/cpp/build/building-on-the-command-line?view=vs-2019
call C:\"Program Files (x86)"\"Microsoft Visual Studio"\2017\Community\VC\Auxiliary\Build\vcvarsall.bat x86 && call c:\Qt\5.12.2\msvc2017\bin\qmake && call C:\"Program Files (x86)"\"Microsoft Visual Studio"\2017\Community\VC\Tools\MSVC\14.16.27023\bin\Hostx86\x86\nmake /f Makefile || echo Build of PythonQt failed, Exit Code is %errorlevel%
cmd /k
And here is my python.prf file:
# Change this variable to your python version (2.6, 2.7, 3.3, ...)
PYTHON_VERSION=$$(PYTHON_VERSION)
isEmpty( PYTHON_VERSION ) {
win32:PYTHON_VERSION=38
unix:PYTHON_VERSION=3.8
}
macx {
# for macx you need to have the Python development kit installed as framework
INCLUDEPATH += /System/Library/Frameworks/Python.framework/Headers
LIBS += -F/System/Library/Frameworks -framework Python
} else:win32 {
# for windows install a Python development kit or build Python yourself from the sources
# Make sure that you set the environment variable PYTHON_PATH to point to your
# python installation (or the python sources/header files when building from source).
# Make sure that you set the environment variable PYTHON_LIB to point to
# the directory where the python libs are located.
#
# When using the prebuild Python installer, this will be:
# set PYTHON_PATH = c:\Python26
# set PYTHON_LIB = c:\Python26\libs
#
# When using the python sources, this will be something like:
# set PYTHON_PATH = c:\yourDir\Python-2.6.1\
# set PYTHON_LIB = c:\yourDir\Python-2.6.1\PCbuild8\Win32
# check if debug or release
CONFIG(debug, debug|release) {
DEBUG_EXT = #_d
} else {
DEBUG_EXT =
}
win32:INCLUDEPATH += $$(PYTHON_PATH)/PC $$(PYTHON_PATH)/include
win32:LIBS += $$(PYTHON_LIB)/python$${PYTHON_VERSION}$${DEBUG_EXT}.lib
} else:unix {
# on linux, python-config is used to autodetect Python.
# make sure that you have installed a matching python-dev package.
unix:LIBS += $$system(python$${PYTHON_VERSION}-config --ldflags)
unix:QMAKE_CXXFLAGS += $$system(python$${PYTHON_VERSION}-config --includes)
}
And my common.prf:
# depending on your Qt configuration, you want to enable or disable
# one of the release/debug builds (if all three lines are commented,
# the default of your Qt installation will used)
# build with both debug and release mode
#CONFIG += debug_and_release build_all
# build with release mode only
#CONFIG += release
# build with debug mode only
#CONFIG += debug
# for all debug builds, add "_d" extension to target
CONFIG(debug, debug|release) {
TARGET = $${TARGET}_d
}
# Try files that are generated by the user:
PYTHONQT_GENERATED_PATH = $$PWD/../generated_cpp
!exists($$PYTHONQT_GENERATED_PATH) {
# If no files are generated, try the checked-in wrappers:
PYTHONQT_GENERATED_PATH = $$PWD/../generated_cpp_$${QT_MAJOR_VERSION}$${QT_MINOR_VERSION}
!exists($$PYTHONQT_GENERATED_PATH) {
contains( QT_MAJOR_VERSION, 5 ) {
contains( QT_MINOR_VERSION, 10 ) {
PYTHONQT_GENERATED_PATH = $$PWD/../generated_cpp_56
}
else:contains( QT_MINOR_VERSION, 11 ) {
PYTHONQT_GENERATED_PATH = $$PWD/../generated_cpp_511
}
else:contains( QT_MINOR_VERSION, 12 ) {
PYTHONQT_GENERATED_PATH = $$PWD/../generated_cpp_511
}
else:contains( QT_MINOR_VERSION, 1 ) {
PYTHONQT_GENERATED_PATH = $$PWD/../generated_cpp_50
}
else:contains( QT_MINOR_VERSION, 2 ) {
PYTHONQT_GENERATED_PATH = $$PWD/../generated_cpp_50
}
else:contains( QT_MINOR_VERSION, 3 ) {
PYTHONQT_GENERATED_PATH = $$PWD/../generated_cpp_53
}
else:contains( QT_MINOR_VERSION, 4 ) {
PYTHONQT_GENERATED_PATH = $$PWD/../generated_cpp_54
}
else:contains( QT_MINOR_VERSION, 5 ) {
PYTHONQT_GENERATED_PATH = $$PWD/../generated_cpp_54
}
else:contains( QT_MINOR_VERSION, 6 ) {
PYTHONQT_GENERATED_PATH = $$PWD/../generated_cpp_56
}
else:contains( QT_MINOR_VERSION, 7 ) {
PYTHONQT_GENERATED_PATH = $$PWD/../generated_cpp_56
}
else:contains( QT_MINOR_VERSION, 8 ) {
PYTHONQT_GENERATED_PATH = $$PWD/../generated_cpp_56
}
else:contains( QT_MINOR_VERSION, 9 ) {
PYTHONQT_GENERATED_PATH = $$PWD/../generated_cpp_56
}
else {
PYTHONQT_GENERATED_PATH = $$PWD/../generated_cpp_56
}
}
}
}
VERSION = 3.2.0
# Suppress the automatic version number appended to the DLL file name on Windows.
win32: CONFIG += skip_target_version_ext
In summary, I believe that I've built PythonQt, and I have a bunch of executables for the PythonQt example projects, and a dll, exp, and lib file, for PythonQt-Qt5-Python38 and PythonQt_QtAll-Qt5-Python38, respectively. Where do I go from here?
