Added get_versions function

psyplot_gui/__init__.py

@@ -37,6 +37,25 @@
 logger = logging.getLogger(__name__)
 
 
+def get_versions(requirements=True):
+    ret = {'version': __version__}
+    if requirements:
+        try:
+            import qtconsole
+        except:
+            logger.error('Could not load qtconsole!', exc_info=True)
+        else:
+            ret['qtconsole'] = qtconsole.__version__
+        try:
+            from psyplot_gui.compat.qtcompat import PYQT_VERSION, QT_VERSION
+        except:
+            logger.error('Could not load qt and pyqt!', exc_info=True)
+        else:
+            ret['qt'] = QT_VERSION
+            ret['pyqt'] = PYQT_VERSION
+    return ret
+
+
 @docstrings.dedent
 def start_app(fnames=[], name=[], dims=None, plot_method=None, backend=False,
               output=None, project=None, engine=None, formatoptions=None,
@@ -166,9 +185,6 @@ def get_parser(create=True):
         'Gui options',
         'Options specific to the graphical user interface')
 
-    parser.update_arg('version', version="psyplot: %s\npsyplot_gui: %s" % (
-        psyplot.__version__, __version__))
-
     parser.update_arg(
         'backend', short='b', const=None, nargs='?', metavar='backend',
         help="""

psyplot_gui/compat/qtcompat.py

@@ -27,6 +27,8 @@
     from PyQt4.QtWebKit import QWebView as QWebEngineView
     from PyQt4.QtTest import QTest
     from PyQt4 import QtGui
+    from PyQt4.Qt import PYQT_VERSION_STR as PYQT_VERSION
+    from PyQt4.Qt import QT_VERSION_STR as QT_VERSION
     with_qt5 = False
     QSignalSpy = None
 else:
@@ -52,4 +54,6 @@
         from PyQt5.QtWebKitWidgets import QWebView as QWebEngineView
     from PyQt5.QtTest import QTest, QSignalSpy
     from PyQt5 import QtGui
+    from PyQt5.Qt import PYQT_VERSION_STR as PYQT_VERSION
+    from PyQt5.Qt import QT_VERSION_STR as QT_VERSION
     with_qt5 = True