Quick and dirty debugging output for tired programmers.
Install q with "easy_install -U q" or "pip install -U q".
All output goes to /tmp/q, which you can watch with this shell command::
tail -f /tmp/q
If TMPDIR is set, the output goes to $TMPDIR/q.
To print the value of foo, insert this into your program::
import q; q(foo)
To print the value of something in the middle of an expression, insert "q()", "q/", or "q|". For example, given this statement::
file.write(prefix + (sep or '').join(items))
...you can print out various values without using any temporary variables::
file.write(prefix + q(sep or '').join(items)) # prints (sep or '')
file.write(q/prefix + (sep or '').join(items)) # prints prefix
file.write(q|prefix + (sep or '').join(items)) # prints the arg to write
To trace a function's arguments and return value, insert this above the def::
import q
@q
To start an interactive console at any point in your code, call q.d()::
import q; q.d()