diff options
Diffstat (limited to 'coverage/debug.py')
| -rw-r--r-- | coverage/debug.py | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/coverage/debug.py b/coverage/debug.py index 8d36c1c..8ae087d 100644 --- a/coverage/debug.py +++ b/coverage/debug.py @@ -7,6 +7,7 @@ import inspect import json import os import re +import sys # When debugging, it can be helpful to force some options, especially when @@ -27,9 +28,7 @@ class DebugControl(object): self.output = output def __repr__(self): - return "<DebugControl options=%r output=%r>" % ( - self.options, self.output - ) + return "<DebugControl options=%r output=%r>" % (self.options, self.output) def should(self, option): """Decide whether to output debug information in category `option`.""" @@ -40,6 +39,8 @@ class DebugControl(object): if self.should('pid'): msg = "pid %5d: %s" % (os.getpid(), msg) self.output.write(msg+"\n") + if self.should('callers'): + dump_stack_frames(self.output) self.output.flush() def write_formatted_info(self, header, info): @@ -94,9 +95,11 @@ def short_stack(): # pragma: debugging return "\n".join("%30s : %s @%d" % (t[3], t[1], t[2]) for t in stack) -def dump_stack_frames(): # pragma: debugging - """Print a summary of the stack to stdout.""" - print(short_stack()) +def dump_stack_frames(out=None): # pragma: debugging + """Print a summary of the stack to stdout, or some place else.""" + out = out or sys.stdout + out.write(short_stack()) + out.write("\n") def pretty_data(data): |