partial fix to #55 --> Prevent blocking app when lib is not supported

Source/Module/interactive_gui.py

@@ -5,6 +5,14 @@
     import matplotlib
     matplotlib.use('TkAgg')
 
+interactive_graph_support = False
+try:
+    from cefpython3 import cefpython as cef
+    interactive_graph_support = True
+except:
+    print("Interactive graph in app wont work as py/platform is not supported")
+    pass
+
 import memory
 
 # This implementation is a modified version of the example of 
@@ -24,7 +32,6 @@
 # entry widget otherwise keyboard focus is lost (Issue #255
 # and Issue #284).
 
-from cefpython3 import cefpython as cef
 import ctypes
 try:
     # for Python2
@@ -68,14 +75,15 @@ def gimmick_initialize(window, map):
             formatter = _logging.Formatter("[%(filename)s] %(message)s")
             stream_handler.setFormatter(formatter)
             logger.addHandler(stream_handler)
-            logger.info("CEF Python {ver}".format(ver=cef.__version__))
-            logger.info("Python {ver} {arch}".format(
-                    ver=platform.python_version(), arch=platform.architecture()[0]))
-            logger.info("Tk {ver}".format(ver=tk.Tcl().eval('info patchlevel')))
-            assert cef.__version__ >= "55.3", "CEF Python v55.3+ required to run this"
-            sys.excepthook = cef.ExceptHook  # To shutdown all CEF processes on error
-
-            if not MAC:
+            if interactive_graph_support:
+                logger.info("CEF Python {ver}".format(ver=cef.__version__))
+                logger.info("Python {ver} {arch}".format(
+                        ver=platform.python_version(), arch=platform.architecture()[0]))
+                logger.info("Tk {ver}".format(ver=tk.Tcl().eval('info patchlevel')))
+                assert cef.__version__ >= "55.3", "CEF Python v55.3+ required to run this"
+                sys.excepthook = cef.ExceptHook  # To shutdown all CEF processes on error
+
+            if not MAC and interactive_graph_support:
                 FourthFrame = ttk.Frame(window,  width=500, height=500, padding="10 10 10 10",relief= GROOVE)
                 FourthFrame.grid(column=50, row=10, sticky=(N, W, E, S), columnspan=200, rowspan=200, padx=5, pady=5)
 

Source/main.py

@@ -9,7 +9,13 @@
     import matplotlib
     matplotlib.use('TkAgg')
 
-from cefpython3 import cefpython as cef
+interactive_graph_support = False
+try:
+    from cefpython3 import cefpython as cef
+    interactive_graph_support = True
+except:
+    print("Interactive graph in app wont work as py/platform is not supported")
+    pass
 
 try:
     # for Python2
@@ -37,9 +43,11 @@ def main():
     icon = PhotoImage(file=logo_file)
     base.tk.call('wm','iconphoto',base._w,icon)
     user_interface.pcapXrayGui(base)
-    cef.Initialize()
+    if interactive_graph_support:
+        cef.Initialize()
     base.mainloop()
-    cef.Shutdown()
+    if interactive_graph_support:
+        cef.Shutdown()
 
 main()