cisstInteractive: fixed pickle calls for Python 3

Author: pkazanzides

cisstInteractive/code/ireTask.cpp

@@ -6,7 +6,7 @@
   Author(s):  Peter Kazanzides
   Created on: 2010-12-10
 
-  (C) Copyright 2010 Johns Hopkins University (JHU), All Rights Reserved.
+  (C) Copyright 2010-2025 Johns Hopkins University (JHU), All Rights Reserved.
 
 --- begin cisst license - do not edit ---
 
@@ -52,7 +52,7 @@ void ireTask::Initialize(void)
         required->AddEventHandlerWrite(&ireTask::Log, this, 
                                        mtsManagerComponentBase::EventNames::PrintLog);
     }
-    SetInitializationDelay(30.0);  // Allow up to 30 seconds for it to start
+    SetInitializationDelay(10.0);  // Allow up to 10 seconds for it to start
 }
 
 ireTask::~ireTask()

cisstInteractive/code/irepy/ireMain.py

@@ -599,17 +599,15 @@ def GetTypeString(self, obj):
     #-------------------------------------------------
 
     def SaveHistoryToFile(self):
-        # PK TODO: pickle not yet working in Python3
-        if sys.version_info.major == 2:
-            cmdlist = self.CommandHistoryListCtrl.GetAllItems()
-            f = open(self.HISTORY_FILENAME, 'w')
-            pickle.dump(cmdlist, f)
+        cmdlist = self.CommandHistoryListCtrl.GetAllItems()
+        f = open(self.HISTORY_FILENAME, 'wb')
+        pickle.dump(cmdlist, f)
 
     def LoadHistoryFromFile(self, fn=HISTORY_FILENAME):
         Data = []
         if os.path.isfile(fn):
             try:
-                Data = pickle.load(open(fn))
+                Data = pickle.load(open(fn, 'rb'))
             except Exception as error:
                 msgdlg = wx.MessageDialog(self, str(error), "Load History", wx.OK | wx.ICON_ERROR)
                 msgdlg.ShowModal()
@@ -693,13 +691,13 @@ def TruncateHistoryFile(self):
             # write the command file up to the selected line into the named file
             # fetch any existing list first and append to it
             try:
-                archlist = pickle.load(open(fn))
+                archlist = pickle.load(open(fn), 'rb')
             except IOError:
                 archlist = []
             n=0
             for n in range(choice):
                 archlist.append( cmdlist[n] )
-            pickle.dump( archlist, open(fn, 'w'))
+            pickle.dump( archlist, open(fn, 'wb'))
             text = "Your command history was archived to " + fn
             msgdlg = wx.MessageDialog(self, text, title, wx.OK | wx.ICON_INFORMATION)
             msgdlg.ShowModal()
@@ -836,7 +834,7 @@ def OnViewLogger(self, event):
     def OnLoadWorkspace(self, event):
         Filepath = py.editor.openSingle(directory='',wildcard='IRE Workspace (*.ws)|*.ws|All Files (*.*)|*.*').path
         if Filepath:
-            File = open(Filepath)
+            File = open(Filepath, 'rb')
             LoadWorkspaceFile(self.Shell.interp.locals, File)
             File.close()
             self.CheckScopeVariables()
@@ -848,7 +846,7 @@ def OnSaveWorkspace(self, event):
             (name, ext) = os.path.splitext(Filepath)
             if not ext:
                Filepath += '.ws'
-            File = open(Filepath,'w')
+            File = open(Filepath,'wb')
             SaveWorkspaceToFile(self.Shell.interp.locals, File)
             File.close()
 

cisstInteractive/code/irepy/ireWorkspace.py

@@ -76,7 +76,7 @@ def main():
     v1 = v2 = None
     print('v1 = ', v1, '\nv2 = ', v2)
     LoadFile(open('workspace'))
-    Workspace = pickle.load(open('workspace'))
+    Workspace = pickle.load(open('workspace', 'rb'))
     for Variable in Workspace:
         exec(Variable + " = Workspace['" + Variable + "']")
     print('v1 = ', v1, '\nv2 = ', v2)