PR: Show internal errors in a QMessageBox

spyder/app/mainwindow.py

@@ -428,6 +428,11 @@ def signal_handler(signum, frame=None):
         if options.window_title is not None:
             title += ' -- ' + options.window_title
 
+        if DEV or DEBUG or PYTEST:
+            # Show errors in internal console when developing or testing.
+            CONF.set('main', 'show_internal_console_if_traceback', True)
+
+
         self.base_title = title
         self.update_window_title()
         resample = os.name != 'nt'
@@ -2296,7 +2301,7 @@ def show_dependencies(self):
         dlg.exec_()
 
     @Slot()
-    def report_issue(self):
+    def report_issue(self, traceback=""):
         if PY3:
             from urllib.parse import quote
         else:
@@ -2320,6 +2325,7 @@ def report_issue(self):
 
 **Please provide any additional information below**
 
+%s
 
 ## Version and main components
 
@@ -2331,7 +2337,8 @@ def report_issue(self):
 ```
 %s
 ```
-""" % (versions['spyder'],
+""" % (traceback,
+       versions['spyder'],
        revision,
        versions['python'],
        versions['qt'],

spyder/config/main.py

@@ -93,7 +93,7 @@
               'cpu_usage/timeout': 2000,
               'use_custom_margin': True,
               'custom_margin': 0,
-              'show_internal_console_if_traceback': True,
+              'show_internal_console_if_traceback': False,
               'check_updates_on_startup': True,
               'toolbars_visible': True,
               # Global Spyder fonts
@@ -655,7 +655,7 @@
 #    or if you want to *rename* options, then you need to do a MAJOR update in
 #    version, e.g. from 3.0.0 to 4.0.0
 # 3. You don't need to touch this value if you're just adding a new option
-CONF_VERSION = '37.1.0'
+CONF_VERSION = '37.2.0'
 
 # Main configuration instance
 try:

spyder/plugins/console.py

@@ -19,8 +19,9 @@
 # Third party imports
 from qtpy import PYQT5
 from qtpy.compat import getopenfilename
-from qtpy.QtCore import Signal, Slot
-from qtpy.QtWidgets import QInputDialog, QLineEdit, QMenu, QVBoxLayout
+from qtpy.QtCore import Signal, Slot, Qt
+from qtpy.QtWidgets import (QInputDialog, QLineEdit, QMenu, QVBoxLayout,
+                            QMessageBox)
 
 # Local imports
 from spyder.config.base import _, debug_print
@@ -91,7 +92,11 @@ def __init__(self, parent=None, namespace=None, commands=[], message=None,
 
         # Accepting drops
         self.setAcceptDrops(True)
-
+
+        # Traceback MessageBox
+        self.msgbox_traceback= None
+        self.error_traceback = ""
+
     #------ Private API --------------------------------------------------------
     def set_historylog(self, historylog):
         """Bind historylog instance to this console
@@ -197,13 +202,44 @@ def register_plugin(self):
         # Connecting the following signal once the dockwidget has been created:
         self.shell.traceback_available.connect(self.traceback_available)
 
-    def traceback_available(self):
+    def traceback_available(self, text):
         """Traceback is available in the internal console: showing the 
         internal console automatically to warn the user"""
         if CONF.get('main', 'show_internal_console_if_traceback', False):
             self.dockwidget.show()
             self.dockwidget.raise_()
-
+        else:
+            if self.msgbox_traceback is None:
+                self.msgbox_traceback = QMessageBox(
+                    QMessageBox.Critical,
+                    _('Error'),
+                    _("<b>Spyder-IDE has encountered a problem.</b>"
+                      "Sorry for the inconvenience."
+                      "<b>Please tell us about this problem.</b>"
+                      "<br><br>"
+                      "You can submit this error to the github issue tracker"),
+                      QMessageBox.Ok,
+                    parent=self)
+
+                self.submit_btn = self.msgbox_traceback.addButton(
+                        _('Submit to github'), QMessageBox.YesRole)
+                self.submit_btn.pressed.connect(self.press_submit_btn)
+
+                self.msgbox_traceback.setWindowModality(Qt.NonModal)
+                self.error_traceback = ""
+                self.msgbox_traceback.show()
+                self.msgbox_traceback.finished.connect(self.close_msg)
+
+            self.error_traceback += text
+            self.msgbox_traceback.setDetailedText(self.error_traceback)
+
+    def close_msg(self):
+        self.msgbox_traceback = None
+
+    def press_submit_btn(self):
+        self.main.report_issue(self.error_traceback)
+        self.msgbox_traceback = None
+
     #------ Public API ---------------------------------------------------------
     @Slot()
     def quit(self):

spyder/widgets/sourcecode/base.py

@@ -1276,7 +1276,7 @@ class ConsoleBaseWidget(TextEditBaseWidget):
     """Console base widget"""
     BRACE_MATCHING_SCOPE = ('sol', 'eol')
     COLOR_PATTERN = re.compile('\x01?\x1b\[(.*?)m\x02?')
-    traceback_available = Signal()
+    traceback_available = Signal(str)
     userListActivated = Signal(int, str)
     completion_widget_activated = Signal(str)
 
@@ -1398,7 +1398,7 @@ def append_text_to_shell(self, text, error, prompt):
                     # Show error/warning messages in red
                     cursor.insertText(text, self.error_style.format)
             if is_traceback:
-                self.traceback_available.emit()
+                self.traceback_available.emit(text)
         elif prompt:
             # Show prompt in green
             insert_text_to(cursor, text, self.prompt_style.format)