[PyQt] Pyqtdeploy - build pyqt app on Windows

[Mạnh Tú Vũ]

Hi Phil,

I have already built qt-everywhere with pyqtdeploy-sysroot and I can see those .lib files in my sysroot-win-32/qt/lib. Is that not enough or I have to build something else?




> On 22 Aug 2019, at 10:28, Phil Thompson <phil at riverbankcomputing.com> wrote:
> 
> On 22/08/2019 10:04, Mạnh Tú Vũ wrote:
>> Hello,
>> I'm trying to build my PyQt application on Windows and I'm not sure that I
>> understand the way it works. I have built my application into a .exe binary
>> file but when I was trying to run, it threw an exception of:
>> C:\boatswain\boatswain\build-win-32>release\Boatswain.exe
>>> Log file:
>>>> C:\Users\manhtu\AppData\Local\theboatswain\boatswain\Logs\boatswain.log
>>> Traceback (most recent call last):
>>> File "bootstrap.py", line 983, in _find_and_load
>>> File "bootstrap.py", line 967, in _find_and_load_unlocked
>>> File "bootstrap.py", line 668, in _load_unlocked
>>> File "bootstrap.py", line 638, in _load_backward_compatible
>>> File ":/boatswain/__init__.py", line 1, in <module>
>>> File "bootstrap.py", line 983, in _find_and_load
>>> File "bootstrap.py", line 967, in _find_and_load_unlocked
>>> File "bootstrap.py", line 668, in _load_unlocked
>>> File "bootstrap.py", line 638, in _load_backward_compatible
>>> File ":/boatswain/main.py", line 22, in <module>
>>> File "bootstrap.py", line 983, in _find_and_load
>>> File "bootstrap.py", line 953, in _find_and_load_unlocked
>>> File "bootstrap.py", line 219, in _call_with_frames_removed
>>> File "bootstrap.py", line 983, in _find_and_load
>>> File "bootstrap.py", line 967, in _find_and_load_unlocked
>>> File "bootstrap.py", line 668, in _load_unlocked
>>> File "bootstrap.py", line 638, in _load_backward_compatible
>>> File ":/PyQt5/__init__.py", line 41, in <module>
>>> File ":/PyQt5/__init__.py", line 33, in find_qt
>>> ImportError:
>>> unable to find Qt5Core.dll on PATH
>> I suspect, the Qt application was trying to find Qt5Core.dll library,
>> however, I see in the Makefile.Release, we had already
>> included  sysroot-win-32\qt\lib\Qt5Core.lib into the application. So, why
>> do we need the .dll library again?
>>> LIBS          = /LIBPATH:C:\boatswain\boatswain\sysroot-win-32\lib
>>> /LIBPATH:C:\boatswain\boatswain\sysroot-win-32\l... C:\boatswain\boatswain\sysroot-win-32\qt\lib\Qt5Core.lib
>>> ...
>> I have tried to run the app using Qt command line and see it worked.
>> Because the required libraries are already included in the PATH env. So,
>> does it mean that I have to distribute the .dll libraries with my
>> application as well?
> 
> If you haven't built a static version of the Qt libraries then yes.
> 
> Phil

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