added traceback

scripts/main.py

@@ -53,15 +53,15 @@ if __name__ == '__main__':
                                                     ],
                                                     title="Setting the API",
                                                     form_height=5)
-                    if choice0 == "cancel":
-                        break
+                    if choice0 == d.CANCEL:
+                        exit(2)
                     (choice1, routine_mode) = d.menu("Choose the routine mode listed below.",
                                                      width=54,
                                                      choices=[("Fixed", "Fixed interval between each routine."),
                                                               ("Ranged", "Randomly picks an interval in a range.")],
                                                      title="Routine Mode")
-                    if choice1 == "cancel":
-                        break
+                    if choice1 == d.CANCEL:
+                        exit(2)
                     else:
                         if routine_mode == "Fixed":
                             (choice2, interval) = d.inputbox("Enter the interval during each routine, in seconds",
@@ -88,7 +88,7 @@ if __name__ == '__main__':
                             for item in interval:
                                 item = int(item)
                         if choice2 == "cancel":
-                            break
+                            exit(2)
                         business_hour = True if d.yesno("Do you wanna enable business hours mode?\n"
                                                         "If you enabled this, the API will be only called from 9 to 5, "
                                                         "from Monday to Friday.",
@@ -99,7 +99,7 @@ if __name__ == '__main__':
                                                                    else parsed_arguments.temp_file_threshold),
                                                           title="Temporary file threshold")
                         if choice4 == "Cancel":
-                            break
+                            exit(2)
                         # Conclusion
                         if d.yesno("You've selected:\n"
                                    "Client ID: {0}\n"

scripts/o365_util.py

@@ -6,6 +6,7 @@ import pathlib
 import random
 import pause
 import readline
+import traceback
 import datetime as dt
 from O365 import drive as d
 from O365 import mailbox as mb
@@ -124,6 +125,7 @@ class O365_User:
             if is_interactive:
                 dlg.gauge_stop()
             logging.error(e)
+            logging.error(traceback.format_exc())
             logging.error("AN error occurred, the circulation will be jumped "
                           "to the end and wait for the next turn.")