[PyQt] pyqtdeploy Windows error - Qt5Core.dll?!

[Rob Kent]

So, I created brand new, clean windows 10 install and used the pyqt-demo application in the pyqtdeploy source to create the sysroot.

I now get the following error:

Traceback (most recent call last):
  File "pyqt-demo.py", line 12, 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

My understanding is that (Py)Qt5 has been built statically and there are no DLLs… 

Any help here would be gratefully appreciated…. so far only silence.

Thanks, Rob


On 30 July 2019 at 15:24:18, Rob Kent (rob at gulon.co.uk) wrote:

Even further to my last,

Doesn’t seem to matter whether I link against the .lib file generated as part of the sysroot or against the .dll belonging to the host python: exactly the same result.

Thanks, Rob


On 30 July 2019 at 14:38:30, Rob Kent (rob at gulon.co.uk) wrote:

Further to my last,

It seems to me that ‘_abc’ is a module that is compiled from C and therefore should be included in the python shared lib (is that correct?) and ‘_py_abc’ is a fallback pure python implementation that is not being included as it shouldn’t be needed. If thats’s the case: why can’t my application find the ‘abc’ module in the python lib? Where should I start to look for my misconfiguration?

Thanks, Rob


On 30 July 2019 at 13:16:23, Rob Kent (rob at gulon.co.uk) wrote:

HI there,

I’m creating a dead simple application to test a pyqtdeploy sysroot. Everything builds fine, but when I run it I get the following error:


Fatal Python error: init_sys_streams: can't initialize sys standard streams
Traceback (most recent call last):
  File ":/abc.py", line 105, in <module>
  File "bootstrap.py", line 983, in _find_and_load
  File "bootstrap.py", line 965, in _find_and_load_unlocked
ModuleNotFoundError: No module named '_abc'

During handling of the above exception, another exception occurred:

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 ":/io.py", line 52, 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 ":/abc.py", line 109, in <module>
  File "bootstrap.py", line 983, in _find_and_load
  File "bootstrap.py", line 965, in _find_and_load_unlocked
ModuleNotFoundError: No module named '_py_abc'

When I check the listed frozen files from pyqtdeploy-build although abc.py is there, neither _abc.py or _py_abc are included, although they are there in the lib directory.

My setup is:

Windows 10
MSVC 2017
Python 3.7.2
Qt 5.13.0
Sip 4.19.18
PyQt 5.13.0

My pyqtdeploy project file is set to use the windows shared library.

Any help gratefully appreciated,

Rob

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