[MacPorts] #60741: Unable to install py38-qscintilla-qt5, py38-pyqt5-chart, py38-pyqt5-webengine

[MacPorts]

#60741: Unable to install py38-qscintilla-qt5, py38-pyqt5-chart,
py38-pyqt5-webengine
-------------------------------------------------+-------------------------
  Reporter:  JD-Veiga                            |      Owner:  (none)
      Type:  defect                              |     Status:  new
  Priority:  Normal                              |  Milestone:
 Component:  ports                               |    Version:  2.6.2
Resolution:                                      |   Keywords:
      Port:  py38-pyqt5 py38-qscintilla-qt5      |
  py38-pyqt5-chart py38-pyqt5-webengine          |
  py38-sip                                       |
-------------------------------------------------+-------------------------

Comment (by JD-Veiga):

 I can confirm that I **can upgrade `py38-qscintilla-qt5`,
 `py38-pyqt5-chart`, and `py38-pyqt5-webengine` from a previous
 installation but not from a fresh installation**.

 In my case, upgrading from previous installation was possible with these
 packages:

 - `py38-pyqt5 @5.15.0_0+scintilla`
 - `qscintilla-qt5 @2.11.2_0`
 - `py38-pyqt5-chart @5.15.0_0`
 - `py38-qscintilla-qt5 @2.11.2_0`

 I upgraded them to:

 - `qscintilla-qt5 @2.11.5_0`
 - `py38-qscintilla-qt5 @2.11.5_0`

 and installed:

 - `py38-pyqt5 @5.15.0_0+scintilla+webkit`
 - `py38-pyqt5-webengine @5.15.0_0` (and corresponding `qt5-qtwebengine
 @5.14.2_0`)

 As I said before, this was not possible from a fresh installation (without
 qt5, pyqt5, qscintilla-qt5, etc. installed).


 ----


 Despite having being able to upgrade from previous installation,
 **importing qscintilla with activated `py38-qscintilla-qt5 @2.11.5_0` is
 not possible**. It can only import it with `py38-qscintilla-qt5 @2.11.2_0`
 activated.

 For instance, running `python -c 'import PyQt5.Qsci'` with `py38
 -qscintilla-qt5 @2.11.5_0 (active)` --and `qscintilla-qt5 @2.11.5_0
 (active)`-- fails:


 {{{
 Traceback (most recent call last):
   File "<string>", line 1, in <module>
 ImportError:
 dlopen(/opt/local/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8
 /site-packages/PyQt5/Qsci.so, 2): Library not loaded:
 @rpath/libqscintilla2_qt5.15.dylib
   Referenced from:
 /opt/local/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8
 /site-packages/PyQt5/Qsci.so
   Reason: image not found
 }}}

 Though `/opt/local/libexec/qt5/lib/libqscintilla2_qt5.15.dylib` really
 exists.

 Running `python -c 'import PyQt5.Qsci'` with `py38-qscintilla-qt5
 @2.11.2_0 (active)` --and `qscintilla-qt5 @2.11.5_0 (active)`-- works
 fine. (Note that only py38-qscintilla-qt5 has been changed between tests.)

 I do not know if inability to install `py38-qscintilla-qt5`,
 `py38-pyqt5-chart`, and `py38-pyqt5-webengine` from scratch and inability
 to import qscintilla with `py38-qscintilla-qt5 @2.11.5_0` are related or
 not. Just providing empirical observations.

 Thank you and sorry for the burden.

-- 
Ticket URL: <https://trac.macports.org/ticket/60741#comment:5>
MacPorts <https://www.macports.org/>
Ports system for macOS