Best Breakfast place if you are in london: Roast

Yum.

(Also most expensive I suspect).

I'm very happy to announce that Canonical are hosting a Squid meetup in London this coming Saturday and Sunday the 1st and 2nd of March. Any developers (in the broad sense - folk doing coding/testing/documenting/community support/) are very welcome to attend. As it is a weekend and a security office building, you need to contact me to arrange to come - just rocking up won't work :). We'll be there all Saturday and Sunday through to mid-afternoon.

The Canonical London office is in Millbank Tower http://en.wikipedia.org/wiki/Millbank_Tower.

So if you want to come by please drop me a mail.

We'll be getting very technical very quickly I expect - for folk wanting a purely social meetup, I'm going to pick a reasonable place to meet for food and (optionally) alcohol on Saturday evening - I'll post details here mid-friday.

Just an observation on the user interface of mobile phone chargers. My phone runs flat all the time. And it's all UI.

The phone manual sayeth: "Do not leave the phone on the charger once it is charged; doing so will reduce battery life." The phone gives no signal when its charged.

So I have to stand over the phone when its charging, to ensure I unplug it appropriately.

As a result: I don't charge it when I'm in a rush; and it never gets charged when I'm about to do something else - I will forget it.

Blech. How much can a 'disconnect when charged' circuit really cost?

For simpler tracing of python code than my snippet...: python -mtrace -t program.py

Tracing python programs. Today, Evan Dandrea asked a general question "Where is set -x for python". A quick google for sys.settrace found: Some code snippets. I thought this was nice, but surely you want to be able to just trace an arbitrary program. So I present a 'quick hack' (5 minutes precisely :)) to do that based on the previous links final version:

#!/usr/bin/env python

 
 import linecache
import os
import os.path
import sys

 
 def traceit(frame, event, arg):
    if event == "line":
        lineno = frame.f_lineno
        filename = frame.f_globals["__file__"]
        if (filename.endswith(".pyc") or
            filename.endswith(".pyo")):
            filename = filename[:-1]
        name = frame.f_globals["__name__"]
        line = linecache.getline(filename, lineno)
        print "%s:%s: %s" % (name, lineno, line.rstrip())
    return traceit

 
 def main():
    search_path = os.environ.get('PATH',
        '').split(os.path.pathsep)
    argv = sys.argv[1:]
    if not argv:
        raise Exception("No command to trace supplied")
    args = argv[1:]
    command = argv[0]
    if os.path.sep not in command:
        for path in search_path:
            if os.path.exists(os.path.join(path, command)):
                command = os.path.join(path, command)
                break
    del sys.argv[0]
    source = open(command, 'rt')
    exec_symbols = dict(globals())
    exec_symbols['__name__'] = '__main__'
    sys.settrace(traceit)
    exec source in exec_symbols, exec_symbols

 
 main()