Copy the trace module here from Tools/scripts.

There are some problems with this module, but the tool works for
simple tasks and no one else has volunteered a better code coverage
tool.  Should cleanup and document before the beta release.

1 files changed, 729 insertions, 0 deletions

diff --git a/Lib/trace.py b/Lib/trace.py
new file mode 100644
index 0000000..ffbce5f
--- /dev/null
+++ b/Lib/trace.py
@@ -0,0 +1,729 @@
+#!/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.
+#
+"""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
+   r = trace.results()
+   r.write_results(show_missing=1)
+"""
+
+import sys, os, tempfile, types, copy, operator, inspect, exceptions, marshal
+try:
+    import cPickle
+    pickle = cPickle
+except ImportError:
+    import pickle
+
+# 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):
+        self._mods = modules or []
+        self._dirs = dirs or []
+
+        self._dirs = map(os.path.normpath, self._dirs)
+        self._ignore = { '<string>': 1 }
+
+    def names(self, filename, modulename):
+        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 filename.startswith(d + os.sep):
+                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):
+        """Merge in the data from another CoverageResults"""
+        counts = self.counts
+        calledfuncs = self.calledfuncs
+        other_counts = other.counts
+        other_calledfuncs = other.calledfuncs
+
+        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)
+            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 \
+                       lines[i].find(' '.join(['#pragma', 'NO COVER'])) == -1:
+                        outfile.write('>>>>>> ')
+                    else:
+                        outfile.write(' '*7)
+                    n_lines = n_lines + 1
+                outfile.write(lines[i].expandtabs(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)
+
+def _find_LINENO_from_code(code):
+    """return the numbers of the lines containing the source code that
+    was compiled into code"""
+    linenos = {}
+
+    line_increments = [ord(c) for c in code.co_lnotab[1::2]]
+    table_length = len(line_increments)
+
+    lineno = code.co_firstlineno
+
+    for li in line_increments:
+        linenos[lineno] = 1
+        lineno += li
+    linenos[lineno] = 1
+
+    return linenos
+
+def _find_LINENO(code):
+    """return all of the 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_code(code)
+
+    # and check the constants for references to other code objects
+    for c in code.co_consts:
+        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
+
+    """
+    import parser
+
+    assert filename.endswith('.py')
+
+    prog = open(filename).read()
+    ast = parser.suite(prog)
+    code = parser.compileast(ast, filename)
+
+    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)
+
+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)
+        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(self.globaltrace)
+        try:
+            exec cmd in globals, locals
+        finally:
+            if not self.donothing:
+                sys.settrace(None)
+
+    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)
+            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 filename:
+                modulename = inspect.getmodulename(filename)
+                if modulename is not None:
+                    ignore_it = self.ignore.names(filename, modulename)
+                    if not ignore_it:
+                        if self.trace:
+                            print (" --- modulename: %s, funcname: %s"
+                                   % (modulename, funcname))
+                        return self.localtrace
+            else:
+                # XXX why no filename?
+                return None
+
+    def localtrace_trace_and_count(self, frame, why, arg):
+        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)
+            
+            # 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))
+            if context is not None:
+                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
+            else:
+                print "%s(???): ???" % bname
+        return self.localtrace
+
+    def localtrace_count(self, frame, why, arg):
+        if why == 'line':
+            filename = frame.f_code.co_filename
+            lineno = frame.f_lineno
+            key = filename, lineno
+            self.counts[key] = self.counts.get(key, 0) + 1
+        return self.localtrace
+
+    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))
+    sys.exit(1)
+
+def main(argv=None):
+    import getopt
+
+    if argv is None:
+        argv = sys.argv
+    try:
+        opts, prog_argv = getopt.getopt(argv[1:], "tcrRf:d:msC:l",
+                                        ["help", "version", "trace", "count",
+                                         "report", "no-report", "summary",
+                                         "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])
+        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:
+        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
+
+        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
+
+        if opt == "--ignore-module":
+            ignore_modules.append(val)
+            continue
+
+        if opt == "--ignore-dir":
+            for s in val.split(os.pathsep):
+                s = os.path.expandvars(s)
+                # should I also call expanduser? (after all, could use $HOME)
+
+                s = s.replace("$prefix",
+                              os.path.join(sys.prefix, "lib",
+                                           "python" + sys.version[:3]))
+                s = s.replace("$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:
+        _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]
+        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)
+        try:
+            t.run('execfile(' + `progname` + ')')
+        except IOError, err:
+            _err_exit("Cannot run file %s because: %s" % (`sys.argv[0]`, err))
+        except SystemExit:
+            pass
+
+        results = t.results()
+
+        if not no_report:
+            results.write_results(missing, summary=summary, coverdir=coverdir)
+
+if __name__=='__main__':
+    main()