When I open Spyder, load one of my scripts, highlight the line "import
my_module" and click 'execute selection', Spyder will freeze.
I used GDB to get the call stack of the thread that's hanging:
Thread 1 (python) at "0x7ffff7fd3740"
<module> (Python IDE/bootstrap.py)
main (spyderlib/start_app.py)
main (spyderlib/spyder.py)
run_spyder (spyderlib/spyder.py)
focusInEvent (sourcecode/base.py)
<lambda> (plugins/externalconsole.py)
plugin_focus_changed (spyderlib/spyder.py)
set_shellwidget_from_id (plugins/variableexplorer.py)
visibility_changed (externalshell/namespacebrowser.py)
refresh_table (externalshell/namespacebrowser.py)
communicate (utils/bsdsocket.py)
read_packet (utils/bsdsocket.py)
temp_fail_retry (utils/bsdsocket.py)
I can tell that after I execute the import statement, Spyder is trying to
update the variable explorer with the refresh_table() function. It sends
the command "refresh()" to the monitor's introspection thread through a
socket and then waits for a reply and that's where it gets stuck. It's just
waiting forever for a response to come back through the socket from the
monitor, but the monitor is not replying.
I'm having a hard time figuring out if 1) the monitor crashed and the
thread closed 2) the monitor doesn't reply because it's hung somewhere or
3) some other socket timing issue.
There are 4 other threads running with the following call stacks (Not sure
which one, if any, is the monitor thread):
Thread 66 (NotificationThr) at "0x7fff53a31700" in recv(...)
run (externalshell/introspection.py)
read_packet (utils/bsdsocket.py)
temp_fail_retry (utils/bsdsocket.py)
-----------------------------------------------------------
Thread 64 (python) at "0x7fff8154a700" in accept(...)
__bootstrap (python2.7/threading.py)
__bootstrap_inner (python2.7/threading.py)
run (externalshell/introspection.py)
accept (python2.7/socket.py)
-----------------------------------------------------------
Thread 63 (python) at "0x7fff81d4b700" in accept(...)
__bootstrap (python2.7/threading.py)
__bootstrap_inner (python2.7/threading.py)
run (externalshell/introspection.py)
accept (python2.7/socket.py)
-----------------------------------------------------------
Thread 62 (python) at "0x7fff8254c700" in accept(...)
__bootstrap (python2.7/threading.py)
__bootstrap_inner (python2.7/threading.py)
run (python2.7/threading.py)
start_open_files_server (spyderlib/spyder.py)
accept (python2.7/socket.py)
This is a really tough problem to debug. Does anyone know how I could tell
which thread is the monitor's introspection thread? GDB gives me a thread
ID, which as far as I can tell is a number created by GDB itself. I tried
printing the result of id(threading.get_current_thread()) to try to match
up the thread's address with the address supplied by GDB, but none of them
match, so I can't tell which thread is which. I know Spyder has an
introspection thread, a notification thread, the main console thread.
FYI, I'm running on Linux Mint. I made a bunch of changes to the source
code in an effort to make it more like PyScripter, so I don't want to
report this as a bug until I find the reason it's hanging.
--
You received this message because you are subscribed to the Google Groups
"spyder" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at http://groups.google.com/group/spyderlib.
For more options, visit https://groups.google.com/groups/opt_out.
