enable the tracebacks

src/common.py

@@ -33,13 +33,13 @@
 """
 various useful functions
 """
+
 import base64
 import os
 import mimetypes
 import hashlib
 import subprocess
 import curses
-import traceback
 import sys
 import select
 import errno
@@ -54,16 +54,6 @@ def debug(string):
     fdes.write(string)
     fdes.close()
 
-def exception_handler(type_, value, trace):
-    """
-    on any traceback: exit ncurses and print the traceback
-    then exit the program
-    """
-    curses.endwin()
-    curses.echo()
-    traceback.print_exception(type_, value, trace, None, sys.stderr)
-    sys.exit(2)
-
 def get_base64_from_file(path):
     """
     Convert the content of a file to base64

src/connection.py

@@ -30,7 +30,6 @@ import xmpp
 from config import config
 from logging import logger
 from handler import Handler
-from common import exception_handler
 import threading
 
 class Connection(threading.Thread):
@@ -57,7 +56,6 @@ class Connection(threading.Thread):
         run in a thread
         connect to server
         """
-        sys.excepthook = exception_handler
         if not self.connect_to_server(self.server, self.port):
             self.handler.emit('error', msg='Could not connect to server')
             sys.exit(-1)

src/poezio.py

@@ -21,25 +21,50 @@
 Starting point of poezio. Launches both the Connection and Gui
 """
 import sys
+import traceback
+import curses
 
-# disable any printout (this would mess the display)
-if len(sys.argv) == 2:
-    sys.stderr = open('errors', 'a')
-else:
-    sys.stderr = open('/dev/null', 'a')
+class MyStdErr(object):
+    def __init__(self, fd):
+        """
+        Change sys.stderr to something like /dev/null
+        to disable any printout on the screen that would
+        mess everything
+        """
+        self.old_stderr = sys.stderr
+        sys.stderr = fd
+    def restaure(self):
+        """
+        Restaure the good ol' sys.stderr, because we need
+        it in order to print the tracebacks
+        """
+        sys.stderr = self.old_stderr
+
+my_stderr = MyStdErr(open('/dev/null', 'a'))
+
+def exception_handler(type_, value, trace):
+    """
+    on any traceback: exit ncurses and print the traceback
+    then exit the program
+    """
+    global my_stderr
+    my_stderr.restaure()
+    curses.endwin()
+    curses.echo()
+    traceback.print_exception(type_, value, trace, None, sys.stderr)
+    sys.exit(2)
+
+sys.excepthook = exception_handler
 
 from connection import Connection
 from multiuserchat import MultiUserChat
 from config import config
 from gui import Gui
 from curses import initscr
-from common import exception_handler
 
 import signal
 signal.signal(signal.SIGINT, signal.SIG_IGN) # ignore ctrl-c
 
-sys.excepthook = exception_handler
-
 def main():
     """
     main function