Drop the QtSvg dependency as it is no longer used

README.md

@@ -121,7 +121,7 @@ regularly tested on Windows 10.
 
 The application can be started from the source folder with one of the commands, depending on your
 Python configuration:
-```
+```bash
 ./novelWriter.py
 python novelWriter.py
 python3 novelWriter.py
@@ -141,10 +141,9 @@ It is recommended that novelWriter runs with Qt 5.10 or later, and Python 3.6 or
 Qt as low as 5.2.1 and Python 3.4.3 has been tested, and worked in the past, but there are no
 guarantees that this will keep working as these are not a part of the test builds.
 
-For the apt package manager on Debian systems, the following Python3 packages are needed:
+For the apt package manager on Debian/Ubuntu systems, the following Python3 packages are needed:
 
 * `python3-pyqt5` for the GUI
-* `python3-pyqt5.qtsvg` may need to be installed separately
 * `python3-lxml` for writing project files
 
 These are optional, but recommended:

docs/source/int_started.rst

@@ -66,10 +66,6 @@ The following Python packages are required to run novelWriter:
 
 You can of course also install these packages from your operating system's package repository.
 
-.. note::
-   Sometimes the SVG graphics package for PyQt5 must be installed separately. It is usually called
-   something like ``python3-pyqt5.qtsvg``.
-
 PyQt/Qt should be at least 5.2.1, but ideally 5.10 or higher for nearly all features to work.
 Exporting to standard Markdown, for instance, requires PyQt/Qt 5.14. Searching using regular
 expressions requires 5.3, and for full Unicode support, 5.13.

nw/__init__.py

@@ -199,28 +199,28 @@ def main(sysArgs=None):
 
     # Check Packages and Versions
     errorData = []
+    errorCode = 0
     if sys.hexversion < 0x030403f0:
         errorData.append(
             "At least Python 3.4.3 is required, but 3.6 is highly recommended."
         )
+        errorCode |= 4
     if CONFIG.verQtValue < 50200:
         errorData.append(
             "At least Qt5 version 5.2 is required, found %s." % CONFIG.verQtString
         )
+        errorCode |= 8
     if CONFIG.verPyQtValue < 50200:
         errorData.append(
             "At least PyQt5 version 5.2 is required, found %s." % CONFIG.verPyQtString
         )
-
-    try:
-        import PyQt5.QtSvg # noqa: F401
-    except ImportError:
-        errorData.append("Python module 'PyQt5.QtSvg' is missing.")
+        errorCode |= 16
 
     try:
         import lxml # noqa: F401
     except ImportError:
         errorData.append("Python module 'lxml' is missing.")
+        errorCode |= 32
 
     if errorData:
         if not testMode:
@@ -236,7 +236,7 @@ def main(sysArgs=None):
                 "<br>&nbsp;-&nbsp;".join(errorData)
             ))
             errApp.exec_()
-        sys.exit(10 + len(errorData))
+        sys.exit(errorCode)
 
     # Finish initialising config
     CONFIG.initConfig(confPath, dataPath)

tests/test_gui.py

@@ -85,7 +85,6 @@ def testLaunch(qtbot, monkeypatch, nwFuncTemp, nwTemp):
     assert ex.value.code == 2
 
     # Simulate import error
-    monkeypatch.setitem(sys.modules, "PyQt5.QtSvg", None)
     monkeypatch.setitem(sys.modules, "lxml", None)
     monkeypatch.setattr("sys.hexversion", 0x0)
     monkeypatch.setattr("nw.CONFIG.verQtValue", 50000)
@@ -96,7 +95,10 @@ def testLaunch(qtbot, monkeypatch, nwFuncTemp, nwTemp):
         )
     nwGUI.closeMain()
     nwGUI.close()
-    assert ex.value.code == 15
+    assert ex.value.code &  4 == 4  # Python version not satisfied
+    assert ex.value.code &  8 == 8  # Qt version not satisfied
+    assert ex.value.code & 16 == 16 # PyQt version not satisfied
+    assert ex.value.code & 32 == 32 # lxml package missing
     monkeypatch.undo()
 
 @pytest.mark.gui