On 9/4/2013 4:08 PM, dieter wrote:
Azureaus <lo0...@my.bristol.ac.uk> writes:
...
is there a way of finding out / visualising where a particular class is
called/used throughout a program?
I do not know a simple and reliable way.
When I face such a situation, I use standard operating system
utilities (e.g. "grep -r" under *nix) to search for occurrences of
the class name in the source tree. This often gives good
results when the class name has been well chosen.
Idle has a built-in 'grep' called 'Find in Files' on the Edit menu. I
use it routinely. By default, it searches for the current text
selection, if there is one, in all files in the directory containing the
current file (and subdirectories). Idle's grep uses Python's re module,
so one does not have to learn another re dialect. So it works the same,
with Unicode text, on all systems, including Windows, which does not
come with grep. The (undocumented) limitation is that it searches each
line separately, so it cannot search for multiline patterns. (I would
not be surprised if grep does that same, as it also reports line numbers
and multiple hits in a file.)
Recently (within the last 2 months), I have seen the announcement
(on "...python.announce") of a tracing tool (I forgot the package's
name; maybe, it has been "CodeInspector"). When I have understood
the announcement correctly, then it traces concrete runs
and allows you to explore where objects (e.g. classes) have
been used *in these runs*.
--
Terry Jan Reedy
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