File dcheck.py-fix-crash-in-Qt4-version-check.patch of Package hplip.24624

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File dcheck.py-fix-crash-in-Qt4-version-check.patch of Package hplip.24624

From 9a7ed59efcf645256f8a07f4fb71bf0f838e3838 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Sat, 9 Jan 2021 01:21:08 +0100
Subject: [PATCH] dcheck.py: fix crash in Qt4 version check

On openSUSE, the "PyQt4" module may be available with no submodules.
I.e. "import PyQt4" succeeds, wheras "from PyQt4 import QtCore" fails.
We don't want to make hplip depend on python3-qt4, as all tools use Qt5.

This leads to the following python backtrace in hp-doctor:

Traceback (most recent call last):
  File "/usr/bin/hp-doctor", line 297, in <module>
    num_errors, num_warns = dep.validate(DEPENDENCY_RUN_AND_COMPILE_TIME, False)
  File "/usr/share/hplip/check.py", line 368, in validate
    self.core.dependencies[dep])
  File "/usr/share/hplip/check.py", line 210, in __update_deps_info
    installed_ver = self.core.version_func[deps_info[6]]()
  File "/usr/share/hplip/installer/dcheck.py", line 304, in get_pyQt4_version
    from PyQt4 import QtCore
ImportError: cannot import name 'QtCore'

Fix it.
---
 installer/dcheck.py | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/installer/dcheck.py b/installer/dcheck.py
index d684c10..6215b4b 100644
--- a/installer/dcheck.py
+++ b/installer/dcheck.py
@@ -300,8 +300,12 @@ def get_pyQt4_version():
     except ImportError:
         ver='-'
     else:
-        from PyQt4 import QtCore
-        ver = QtCore.PYQT_VERSION_STR
+        try:
+            from PyQt4 import QtCore
+        except ImportError:
+            pass
+        else:
+            ver = QtCore.PYQT_VERSION_STR
     return ver
 
 
@@ -314,8 +318,12 @@ def get_pyQt5_version():
     except ImportError:
         ver='-'
     else:
-        from PyQt5 import QtCore
-        ver = QtCore.PYQT_VERSION_STR
+        try:
+            from PyQt5 import QtCore
+        except ImportError:
+            pass
+        else:
+            ver = QtCore.PYQT_VERSION_STR
     return ver
 
 def get_reportlab_version():
-- 
2.29.2

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File dcheck.py-fix-crash-in-Qt4-version-check.patch of Package hplip.24624

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