On Thu, Jun 18, 2009 at 11:50 AM, Carlo Hamalainen<carlo.hamalai...@gmail.com> wrote: > > Hi, > > I'm curious about which debugging environment is most popular among > the Sage developers? > > * print statements only (ugh) > * pdb > * ddd > * Eric4 > * something else?
I use print statements, sometimes I use the following trick: import IPython IPython.Shell.IPShell(user_ns=dict(globals(), **locals())).mainloop() which starts an ipython session at this place in the code, with all the locals and globals loaded, so it's easy to experiment, what went wrong. Sometimes if the code is very recursive, I use a hand made debugging printing using decorators --- I decorate each function I want to debug and it prints a nice tree like graph, so it's easy to check things, e.g: SYMPY_DEBUG=True ./bin/isympy In [1]: limit(sin(x)/x, x, 0) limitinf(_x*sin(1/_x), _x) = 1 +-mrv_leadterm(_x*sin(1/_x), _x) = (1, 0) | +-mrv(_x*sin(1/_x), _x) = set([_x]) | | +-mrv(_x, _x) = set([_x]) | | +-mrv(sin(1/_x), _x) = set([_x]) | | +-mrv(1/_x, _x) = set([_x]) | | +-mrv(_x, _x) = set([_x]) | +-mrv_leadterm(exp(_x)*sin(exp(-_x)), _x, set([exp(_x)])) = (1, 0) | +-rewrite(exp(_x)*sin(exp(-_x)), set([exp(_x)]), _x, _w) = (1/_w*sin(_w), -_x) | +-sign(_x, _x) = 1 | +-mrv_leadterm(1, _x) = (1, 0) +-sign(0, _x) = 0 +-limitinf(1, _x) = 1 and sometimes I need to use a real debugger, then I use winpdb. Ondrej --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
