cpython/Tools/scripts/trace.py

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#!/usr/bin/env python
# portions copyright 2001, Autonomous Zones Industries, Inc., all rights...
# err... reserved and offered to the public under the terms of the
# Python 2.2 license.
# Author: Zooko O'Whielacronx
# http://zooko.com/
# mailto:zooko@zooko.com
#
# Copyright 2000, Mojam Media, Inc., all rights reserved.
# Author: Skip Montanaro
#
# Copyright 1999, Bioreason, Inc., all rights reserved.
# Author: Andrew Dalke
#
# Copyright 1995-1997, Automatrix, Inc., all rights reserved.
# Author: Skip Montanaro
#
# Copyright 1991-1995, Stichting Mathematisch Centrum, all rights reserved.
#
#
# Permission to use, copy, modify, and distribute this Python software and
# its associated documentation for any purpose without fee is hereby
# granted, provided that the above copyright notice appears in all copies,
# and that both that copyright notice and this permission notice appear in
# supporting documentation, and that the name of neither Automatrix,
# Bioreason or Mojam Media be used in advertising or publicity pertaining to
# distribution of the software without specific, written prior permission.
#
#
# Cleaned up the usage message --GvR 11/28/01
#
# Summary of even more recent changes, --Zooko 2001-10-14
# Used new `inspect' module for better (?) determination of file<->module
# mappings, line numbers, and source code.
# Used new local trace function for faster (and better?) operation.
# Removed "speed hack", which, as far as I can tell, meant that it would
# ignore all files ??? (When I tried it, it would ignore only *most* of my
# files. In any case with the speed hack removed in favor of actually
# calling `Ignore.names()', it ignores only those files that I told it to
# ignore, so I am happy.)
# Rolled the `Coverage' class into `Trace', which now does either tracing or
# counting or both according to constructor flags.
# Moved the construction of the `Ignore' object inside the constructor of
# `Trace', simplifying usage.
# Changed function `create_results_log()' into method
# `CoverageResults.write_results()'.
# Add new mode "countfuncs" which is faster and which just reports which
# functions were invoked.
# Made `write_results' create `coverdir' if it doesn't already exist.
# Moved the `run' funcs into `Trace' for simpler usage.
# Use pickle instead of marshal for persistence.
#
# Summary of recent changes:
# Support for files with the same basename (submodules in packages)
# Expanded the idea of how to ignore files or modules
# Split tracing and counting into different classes
# Extracted count information and reporting from the count class
# Added some ability to detect which missing lines could be executed
# Added pseudo-pragma to prohibit complaining about unexecuted lines
# Rewrote the main program
# Summary of older changes:
# Added run-time display of statements being executed
# Incorporated portability and performance fixes from Greg Stein
# Incorporated main program from Michael Scharf
"""
program/module to trace Python program or function execution
Sample use, command line:
trace.py -c -f counts --ignore-dir '$prefix' spam.py eggs
trace.py -t --ignore-dir '$prefix' spam.py eggs
Sample use, programmatically
# create a Trace object, telling it what to ignore, and whether to do tracing
# or line-counting or both.
trace = trace.Trace(ignoredirs=[sys.prefix, sys.exec_prefix,], trace=0, count=1)
# run the new command using the given trace
trace.run(coverage.globaltrace, 'main()')
# make a report, telling it where you want output
trace.print_results(show_missing=1)
"""
import sys, os, string, tempfile, types, copy, operator, inspect, exceptions, marshal
try:
import cPickle
pickle = cPickle
except ImportError:
import pickle
true = 1
false = None
# DEBUG_MODE=1 # make this true to get printouts which help you understand what's going on
def usage(outfile):
outfile.write("""Usage: %s [OPTIONS] <file> [ARGS]
Meta-options:
--help Display this help then exit.
--version Output version information then exit.
Otherwise, exactly one of the following three options must be given:
-t, --trace Print each line to sys.stdout before it is executed.
-c, --count Count the number of times each line is executed
and write the counts to <module>.cover for each
module executed, in the module's directory.
See also `--coverdir', `--file', `--no-report' below.
-r, --report Generate a report from a counts file; do not execute
any code. `--file' must specify the results file to
read, which must have been created in a previous run
with `--count --file=FILE'.
Modifiers:
-f, --file=<file> File to accumulate counts over several runs.
-R, --no-report Do not generate the coverage report files.
Useful if you want to accumulate over several runs.
-C, --coverdir=<dir> Directory where the report files. The coverage
report for <package>.<module> is written to file
<dir>/<package>/<module>.cover.
-m, --missing Annotate executable lines that were not executed
with '>>>>>> '.
-s, --summary Write a brief summary on stdout for each file.
(Can only be used with --count or --report.)
Filters, may be repeated multiple times:
--ignore-module=<mod> Ignore the given module and its submodules
(if it is a package).
--ignore-dir=<dir> Ignore files in the given directory (multiple
directories can be joined by os.pathsep).
""" % sys.argv[0])
class Ignore:
def __init__(self, modules = None, dirs = None):
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self._mods = modules or []
self._dirs = dirs or []
self._dirs = map(os.path.normpath, self._dirs)
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self._ignore = { '<string>': 1 }
def names(self, filename, modulename):
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if self._ignore.has_key(modulename):
return self._ignore[modulename]
# haven't seen this one before, so see if the module name is
# on the ignore list. Need to take some care since ignoring
# "cmp" musn't mean ignoring "cmpcache" but ignoring
# "Spam" must also mean ignoring "Spam.Eggs".
for mod in self._mods:
if mod == modulename: # Identical names, so ignore
self._ignore[modulename] = 1
return 1
# check if the module is a proper submodule of something on
# the ignore list
n = len(mod)
# (will not overflow since if the first n characters are the
# same and the name has not already occured, then the size
# of "name" is greater than that of "mod")
if mod == modulename[:n] and modulename[n] == '.':
self._ignore[modulename] = 1
return 1
# Now check that __file__ isn't in one of the directories
if filename is None:
# must be a built-in, so we must ignore
self._ignore[modulename] = 1
return 1
# Ignore a file when it contains one of the ignorable paths
for d in self._dirs:
# The '+ os.sep' is to ensure that d is a parent directory,
# as compared to cases like:
# d = "/usr/local"
# filename = "/usr/local.py"
# or
# d = "/usr/local.py"
# filename = "/usr/local.py"
if string.find(filename, d + os.sep) == 0:
self._ignore[modulename] = 1
return 1
# Tried the different ways, so we don't ignore this module
self._ignore[modulename] = 0
return 0
class CoverageResults:
def __init__(self, counts=None, calledfuncs=None, infile=None, outfile=None):
self.counts = counts
if self.counts is None:
self.counts = {}
self.counter = self.counts.copy() # map (filename, lineno) to count
self.calledfuncs = calledfuncs
if self.calledfuncs is None:
self.calledfuncs = {}
self.calledfuncs = self.calledfuncs.copy()
self.infile = infile
self.outfile = outfile
if self.infile:
# try and merge existing counts file
try:
thingie = pickle.load(open(self.infile, 'r'))
if type(thingie) is types.DictType:
# backwards compatibility for old trace.py after Zooko touched it but before calledfuncs --Zooko 2001-10-24
self.update(self.__class__(thingie))
elif type(thingie) is types.TupleType and len(thingie) == 2:
(counts, calledfuncs,) = thingie
self.update(self.__class__(counts, calledfuncs))
except (IOError, EOFError,):
pass
except pickle.UnpicklingError:
# backwards compatibility for old trace.py before Zooko touched it --Zooko 2001-10-24
self.update(self.__class__(marshal.load(open(self.infile))))
def update(self, other):
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"""Merge in the data from another CoverageResults"""
counts = self.counts
calledfuncs = self.calledfuncs
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other_counts = other.counts
other_calledfuncs = other.calledfuncs
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for key in other_counts.keys():
if key != 'calledfuncs': # backwards compatibility for abortive attempt to stuff calledfuncs into self.counts, by Zooko --Zooko 2001-10-24
counts[key] = counts.get(key, 0) + other_counts[key]
for key in other_calledfuncs.keys():
calledfuncs[key] = 1
def write_results(self, show_missing = 1, summary = 0, coverdir = None):
"""
@param coverdir
"""
for (filename, modulename, funcname,) in self.calledfuncs.keys():
print "filename: %s, modulename: %s, funcname: %s" % (filename, modulename, funcname,)
import re
# turn the counts data ("(filename, lineno) = count") into something
# accessible on a per-file basis
per_file = {}
for thingie in self.counts.keys():
if thingie != "calledfuncs": # backwards compatibility for abortive attempt to stuff calledfuncs into self.counts, by Zooko --Zooko 2001-10-24
(filename, lineno,) = thingie
lines_hit = per_file[filename] = per_file.get(filename, {})
lines_hit[lineno] = self.counts[(filename, lineno)]
# there are many places where this is insufficient, like a blank
# line embedded in a multiline string.
blank = re.compile(r'^\s*(#.*)?$')
# accumulate summary info, if needed
sums = {}
# generate file paths for the coverage files we are going to write...
fnlist = []
tfdir = tempfile.gettempdir()
for key in per_file.keys():
filename = key
# skip some "files" we don't care about...
if filename == "<string>":
continue
# are these caused by code compiled using exec or something?
if filename.startswith(tfdir):
continue
modulename = inspect.getmodulename(filename)
if filename.endswith(".pyc") or filename.endswith(".pyo"):
filename = filename[:-1]
if coverdir:
thiscoverdir = coverdir
else:
thiscoverdir = os.path.dirname(os.path.abspath(filename))
# the code from here to "<<<" is the contents of the `fileutil.make_dirs()' function in the Mojo Nation project. --Zooko 2001-10-14
# http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/mojonation/evil/common/fileutil.py?rev=HEAD&content-type=text/vnd.viewcvs-markup
tx = None
try:
os.makedirs(thiscoverdir)
except OSError, x:
tx = x
if not os.path.isdir(thiscoverdir):
if tx:
raise tx
raise exceptions.IOError, "unknown error prevented creation of directory: %s" % thiscoverdir # careful not to construct an IOError with a 2-tuple, as that has a special meaning...
# <<<
# build list file name by appending a ".cover" to the module name
# and sticking it into the specified directory
if "." in modulename:
# A module in a package
finalname = modulename.split(".")[-1]
listfilename = os.path.join(thiscoverdir, finalname + ".cover")
else:
listfilename = os.path.join(thiscoverdir, modulename + ".cover")
# Get the original lines from the .py file
try:
lines = open(filename, 'r').readlines()
except IOError, err:
sys.stderr.write("trace: Could not open %s for reading because: %s - skipping\n" % (`filename`, err))
continue
try:
outfile = open(listfilename, 'w')
except IOError, err:
sys.stderr.write(
'%s: Could not open %s for writing because: %s" \
"- skipping\n' % ("trace", `listfilename`, err))
continue
# If desired, get a list of the line numbers which represent
# executable content (returned as a dict for better lookup speed)
if show_missing:
executable_linenos = find_executable_linenos(filename)
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else:
executable_linenos = {}
n_lines = 0
n_hits = 0
lines_hit = per_file[key]
for i in range(len(lines)):
line = lines[i]
# do the blank/comment match to try to mark more lines
# (help the reader find stuff that hasn't been covered)
if lines_hit.has_key(i+1):
# count precedes the lines that we captured
outfile.write('%5d: ' % lines_hit[i+1])
n_hits = n_hits + 1
n_lines = n_lines + 1
elif blank.match(line):
# blank lines and comments are preceded by dots
outfile.write(' . ')
else:
# lines preceded by no marks weren't hit
# Highlight them if so indicated, unless the line contains
# '#pragma: NO COVER' (it is possible to embed this into
# the text as a non-comment; no easy fix)
if executable_linenos.has_key(i+1) and \
string.find(lines[i],
string.join(['#pragma', 'NO COVER'])) == -1:
outfile.write('>>>>>> ')
else:
outfile.write(' '*7)
n_lines = n_lines + 1
outfile.write(string.expandtabs(lines[i], 8))
outfile.close()
if summary and n_lines:
percent = int(100 * n_hits / n_lines)
sums[modulename] = n_lines, percent, modulename, filename
if summary and sums:
mods = sums.keys()
mods.sort()
print "lines cov% module (path)"
for m in mods:
n_lines, percent, modulename, filename = sums[m]
print "%5d %3d%% %s (%s)" % sums[m]
if self.outfile:
# try and store counts and module info into self.outfile
try:
pickle.dump((self.counts, self.calledfuncs,), open(self.outfile, 'w'), 1)
except IOError, err:
sys.stderr.write("cannot save counts files because %s" % err)
# Given a code string, return the SET_LINENO information
def _find_LINENO_from_string(co_code):
"""return all of the SET_LINENO information from a code string"""
import dis
linenos = {}
# This code was filched from the `dis' module then modified
n = len(co_code)
i = 0
prev_op = None
prev_lineno = 0
while i < n:
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c = co_code[i]
op = ord(c)
if op == dis.SET_LINENO:
if prev_op == op:
# two SET_LINENO in a row, so the previous didn't
# indicate anything. This occurs with triple
# quoted strings (?). Remove the old one.
del linenos[prev_lineno]
prev_lineno = ord(co_code[i+1]) + ord(co_code[i+2])*256
linenos[prev_lineno] = 1
if op >= dis.HAVE_ARGUMENT:
i = i + 3
else:
i = i + 1
prev_op = op
return linenos
def _find_LINENO(code):
"""return all of the SET_LINENO information from a code object"""
import types
# get all of the lineno information from the code of this scope level
linenos = _find_LINENO_from_string(code.co_code)
# and check the constants for references to other code objects
for c in code.co_consts:
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if type(c) == types.CodeType:
# find another code object, so recurse into it
linenos.update(_find_LINENO(c))
return linenos
def find_executable_linenos(filename):
"""return a dict of the line numbers from executable statements in a file
Works by finding all of the code-like objects in the module then searching
the byte code for 'SET_LINENO' terms (so this won't work one -O files).
"""
import parser
assert filename.endswith('.py')
prog = open(filename).read()
ast = parser.suite(prog)
code = parser.compileast(ast, filename)
# The only way I know to find line numbers is to look for the
# SET_LINENO instructions. Isn't there some way to get it from
# the AST?
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return _find_LINENO(code)
### XXX because os.path.commonprefix seems broken by my way of thinking...
def commonprefix(dirs):
"Given a list of pathnames, returns the longest common leading component"
if not dirs: return ''
n = copy.copy(dirs)
for i in range(len(n)):
n[i] = n[i].split(os.sep)
prefix = n[0]
for item in n:
for i in range(len(prefix)):
if prefix[:i+1] <> item[:i+1]:
prefix = prefix[:i]
if i == 0: return ''
break
return os.sep.join(prefix)
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class Trace:
def __init__(self, count=1, trace=1, countfuncs=0, ignoremods=(), ignoredirs=(), infile=None, outfile=None):
"""
@param count true iff it should count number of times each line is executed
@param trace true iff it should print out each line that is being counted
@param countfuncs true iff it should just output a list of (filename, modulename, funcname,) for functions that were called at least once; This overrides `count' and `trace'
@param ignoremods a list of the names of modules to ignore
@param ignoredirs a list of the names of directories to ignore all of the (recursive) contents of
@param infile file from which to read stored counts to be added into the results
@param outfile file in which to write the results
"""
self.infile = infile
self.outfile = outfile
self.ignore = Ignore(ignoremods, ignoredirs)
self.counts = {} # keys are (filename, linenumber)
self.blabbed = {} # for debugging
self.pathtobasename = {} # for memoizing os.path.basename
self.donothing = 0
self.trace = trace
self._calledfuncs = {}
if countfuncs:
self.globaltrace = self.globaltrace_countfuncs
elif trace and count:
self.globaltrace = self.globaltrace_lt
self.localtrace = self.localtrace_trace_and_count
elif trace:
self.globaltrace = self.globaltrace_lt
self.localtrace = self.localtrace_trace
elif count:
self.globaltrace = self.globaltrace_lt
self.localtrace = self.localtrace_count
else:
# Ahem -- do nothing? Okay.
self.donothing = 1
def run(self, cmd):
import __main__
dict = __main__.__dict__
if not self.donothing:
sys.settrace(self.globaltrace)
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try:
exec cmd in dict, dict
finally:
if not self.donothing:
sys.settrace(None)
def runctx(self, cmd, globals=None, locals=None):
if globals is None: globals = {}
if locals is None: locals = {}
if not self.donothing:
sys.settrace(gself.lobaltrace)
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try:
exec cmd in dict, dict
finally:
if not self.donothing:
sys.settrace(None)
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def runfunc(self, func, *args, **kw):
result = None
if not self.donothing:
sys.settrace(self.globaltrace)
try:
result = apply(func, args, kw)
finally:
if not self.donothing:
sys.settrace(None)
return result
def globaltrace_countfuncs(self, frame, why, arg):
"""
Handles `call' events (why == 'call') and adds the (filename, modulename, funcname,) to the self._calledfuncs dict.
"""
if why == 'call':
(filename, lineno, funcname, context, lineindex,) = inspect.getframeinfo(frame, 0)
if filename:
modulename = inspect.getmodulename(filename)
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else:
modulename = None
self._calledfuncs[(filename, modulename, funcname,)] = 1
def globaltrace_lt(self, frame, why, arg):
"""
Handles `call' events (why == 'call') and if the code block being entered is to be ignored then it returns `None', else it returns `self.localtrace'.
"""
if why == 'call':
(filename, lineno, funcname, context, lineindex,) = inspect.getframeinfo(frame, 0)
# if DEBUG_MODE and not filename:
# print "%s.globaltrace(frame: %s, why: %s, arg: %s): filename: %s, lineno: %s, funcname: %s, context: %s, lineindex: %s\n" % (self, frame, why, arg, filename, lineno, funcname, context, lineindex,)
if filename:
modulename = inspect.getmodulename(filename)
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ignore_it = self.ignore.names(filename, modulename)
# if DEBUG_MODE and not self.blabbed.has_key((filename, modulename,)):
# self.blabbed[(filename, modulename,)] = None
# print "%s.globaltrace(frame: %s, why: %s, arg: %s, filename: %s, modulename: %s, ignore_it: %s\n" % (self, frame, why, arg, filename, modulename, ignore_it,)
if not ignore_it:
if self.trace:
print " --- modulename: %s, funcname: %s" % (modulename, funcname,)
# if DEBUG_MODE:
# print "%s.globaltrace(frame: %s, why: %s, arg: %s, filename: %s, modulename: %s, ignore_it: %s -- about to localtrace\n" % (self, frame, why, arg, filename, modulename, ignore_it,)
return self.localtrace
else:
# XXX why no filename?
return None
def localtrace_trace_and_count(self, frame, why, arg):
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if why == 'line':
# record the file name and line number of every trace
# XXX I wish inspect offered me an optimized `getfilename(frame)' to use in place of the presumably heavier `getframeinfo()'. --Zooko 2001-10-14
(filename, lineno, funcname, context, lineindex,) = inspect.getframeinfo(frame, 1)
key = (filename, lineno,)
self.counts[key] = self.counts.get(key, 0) + 1
# XXX not convinced that this memoizing is a performance win -- I don't know enough about Python guts to tell. --Zooko 2001-10-14
bname = self.pathtobasename.get(filename)
if bname is None:
# Using setdefault faster than two separate lines? --Zooko 2001-10-14
bname = self.pathtobasename.setdefault(filename, os.path.basename(filename))
try:
print "%s(%d): %s" % (bname, lineno, context[lineindex],),
except IndexError:
# Uh.. sometimes getframeinfo gives me a context of length 1 and a lineindex of -2. Oh well.
pass
return self.localtrace
def localtrace_trace(self, frame, why, arg):
if why == 'line':
# XXX shouldn't do the count increment when arg is exception? But be careful to return self.localtrace when arg is exception! ? --Zooko 2001-10-14
# record the file name and line number of every trace
# XXX I wish inspect offered me an optimized `getfilename(frame)' to use in place of the presumably heavier `getframeinfo()'. --Zooko 2001-10-14
(filename, lineno, funcname, context, lineindex,) = inspect.getframeinfo(frame)
# if DEBUG_MODE:
# print "%s.localtrace_trace(frame: %s, why: %s, arg: %s); filename: %s, lineno: %s, funcname: %s, context: %s, lineindex: %s\n" % (self, frame, why, arg, filename, lineno, funcname, context, lineindex,)
# XXX not convinced that this memoizing is a performance win -- I don't know enough about Python guts to tell. --Zooko 2001-10-14
bname = self.pathtobasename.get(filename)
if bname is None:
# Using setdefault faster than two separate lines? --Zooko 2001-10-14
bname = self.pathtobasename.setdefault(filename, os.path.basename(filename))
try:
print "%s(%d): %s" % (bname, lineno, context[lineindex],),
except IndexError:
# Uh.. sometimes getframeinfo gives me a context of length 1 and a lineindex of -2. Oh well.
pass
return self.localtrace
def localtrace_count(self, frame, why, arg):
if why == 'line':
# XXX shouldn't do the count increment when arg is exception? But be careful to return self.localtrace when arg is exception! ? --Zooko 2001-10-14
# record the file name and line number of every trace
# XXX I wish inspect offered me an optimized `getfilename(frame)' to use in place of the presumably heavier `getframeinfo()'. --Zooko 2001-10-14
(filename, lineno, funcname, context, lineindex,) = inspect.getframeinfo(frame)
key = (filename, lineno,)
self.counts[key] = self.counts.get(key, 0) + 1
return self.localtrace
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def results(self):
return CoverageResults(self.counts, infile=self.infile, outfile=self.outfile, calledfuncs=self._calledfuncs)
def _err_exit(msg):
sys.stderr.write("%s: %s\n" % (sys.argv[0], msg))
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sys.exit(1)
def main(argv=None):
import getopt
if argv is None:
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argv = sys.argv
try:
opts, prog_argv = getopt.getopt(argv[1:], "tcrRf:d:msC:l",
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["help", "version", "trace", "count",
"report", "no-report",
"file=", "missing",
"ignore-module=", "ignore-dir=",
"coverdir=", "listfuncs",])
except getopt.error, msg:
sys.stderr.write("%s: %s\n" % (sys.argv[0], msg))
sys.stderr.write("Try `%s --help' for more information\n" % sys.argv[0])
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sys.exit(1)
trace = 0
count = 0
report = 0
no_report = 0
counts_file = None
missing = 0
ignore_modules = []
ignore_dirs = []
coverdir = None
summary = 0
listfuncs = false
for opt, val in opts:
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if opt == "--help":
usage(sys.stdout)
sys.exit(0)
if opt == "--version":
sys.stdout.write("trace 2.0\n")
sys.exit(0)
if opt == "-l" or opt == "--listfuncs":
listfuncs = true
continue
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if opt == "-t" or opt == "--trace":
trace = 1
continue
if opt == "-c" or opt == "--count":
count = 1
continue
if opt == "-r" or opt == "--report":
report = 1
continue
if opt == "-R" or opt == "--no-report":
no_report = 1
continue
if opt == "-f" or opt == "--file":
counts_file = val
continue
if opt == "-m" or opt == "--missing":
missing = 1
continue
if opt == "-C" or opt == "--coverdir":
coverdir = val
continue
if opt == "-s" or opt == "--summary":
summary = 1
continue
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if opt == "--ignore-module":
ignore_modules.append(val)
continue
if opt == "--ignore-dir":
for s in string.split(val, os.pathsep):
s = os.path.expandvars(s)
# should I also call expanduser? (after all, could use $HOME)
s = string.replace(s, "$prefix",
os.path.join(sys.prefix, "lib",
"python" + sys.version[:3]))
s = string.replace(s, "$exec_prefix",
os.path.join(sys.exec_prefix, "lib",
"python" + sys.version[:3]))
s = os.path.normpath(s)
ignore_dirs.append(s)
continue
assert 0, "Should never get here"
if listfuncs and (count or trace):
_err_exit("cannot specify both --listfuncs and (--trace or --count)")
if not count and not trace and not report and not listfuncs:
_err_exit("must specify one of --trace, --count, --report or --listfuncs")
if report and no_report:
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_err_exit("cannot specify both --report and --no-report")
if report and not counts_file:
_err_exit("--report requires a --file")
if no_report and len(prog_argv) == 0:
_err_exit("missing name of file to run")
# everything is ready
if report:
results = CoverageResults(infile=counts_file, outfile=counts_file)
results.write_results(missing, summary=summary, coverdir=coverdir)
else:
sys.argv = prog_argv
progname = prog_argv[0]
if eval(sys.version[:3])>1.3:
sys.path[0] = os.path.split(progname)[0] # ???
t = Trace(count, trace, countfuncs=listfuncs, ignoremods=ignore_modules, ignoredirs=ignore_dirs, infile=counts_file, outfile=counts_file)
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try:
t.run('execfile(' + `progname` + ')')
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except IOError, err:
_err_exit("Cannot run file %s because: %s" % (`sys.argv[0]`, err))
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except SystemExit:
pass
results = t.results()
if not no_report:
results.write_results(missing, summary=summary, coverdir=coverdir)
if __name__=='__main__':
main()