diff options
Diffstat (limited to 'lab/run_trace.py')
-rw-r--r-- | lab/run_trace.py | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/lab/run_trace.py b/lab/run_trace.py new file mode 100644 index 00000000..ea0a6cb7 --- /dev/null +++ b/lab/run_trace.py @@ -0,0 +1,35 @@ +# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 +# For details: https://bitbucket.org/ned/coveragepy/src/default/NOTICE.txt + +"""Run a simple trace function on a file of Python code.""" + +import os, sys + +nest = 0 + +def trace(frame, event, arg): + global nest + + if nest is None: + # This can happen when Python is shutting down. + return None + + print "%s%s %s %d @%d" % ( + " " * nest, + event, + os.path.basename(frame.f_code.co_filename), + frame.f_lineno, + frame.f_lasti, + ) + + if event == 'call': + nest += 1 + if event == 'return': + nest -= 1 + + return trace + +the_program = sys.argv[1] + +sys.settrace(trace) +execfile(the_program) |