Upgrade to coverage 3.7.1 and have it auto-build itself on first use.

third_party/coverage-3.6/coverage/results.py

Index: third_party/coverage-3.6/coverage/results.py
diff --git a/third_party/coverage-3.6/coverage/results.py b/third_party/coverage-3.6/coverage/results.py
deleted file mode 100644
index 77ff2a2d13e08e8d8d54b4f2387e039e4fd0c47f..0000000000000000000000000000000000000000
--- a/third_party/coverage-3.6/coverage/results.py
+++ /dev/null
@@ -1,254 +0,0 @@
-"""Results of coverage measurement."""
-
-import os
-
-from coverage.backward import iitems, set, sorted       # pylint: disable=W0622
-from coverage.misc import format_lines, join_regex, NoSource
-from coverage.parser import CodeParser
-
-
-class Analysis(object):
-    """The results of analyzing a code unit."""
-
-    def __init__(self, cov, code_unit):
-        self.coverage = cov
-        self.code_unit = code_unit
-
-        self.filename = self.code_unit.filename
-        ext = os.path.splitext(self.filename)[1]
-        source = None
-        if ext == '.py':
-            if not os.path.exists(self.filename):
-                source = self.coverage.file_locator.get_zip_data(self.filename)
-                if not source:
-                    raise NoSource("No source for code: '%s'" % self.filename)
-
-        self.parser = CodeParser(
-            text=source, filename=self.filename,
-            exclude=self.coverage._exclude_regex('exclude')
-            )
-        self.statements, self.excluded = self.parser.parse_source()
-
-        # Identify missing statements.
-        executed = self.coverage.data.executed_lines(self.filename)
-        exec1 = self.parser.first_lines(executed)
-        self.missing = sorted(set(self.statements) - set(exec1))
-
-        if self.coverage.data.has_arcs():
-            self.no_branch = self.parser.lines_matching(
-                join_regex(self.coverage.config.partial_list),
-                join_regex(self.coverage.config.partial_always_list)
-                )
-            n_branches = self.total_branches()
-            mba = self.missing_branch_arcs()
-            n_partial_branches = sum(
-                [len(v) for k,v in iitems(mba) if k not in self.missing]
-                )
-            n_missing_branches = sum([len(v) for k,v in iitems(mba)])
-        else:
-            n_branches = n_partial_branches = n_missing_branches = 0
-            self.no_branch = set()
-
-        self.numbers = Numbers(
-            n_files=1,
-            n_statements=len(self.statements),
-            n_excluded=len(self.excluded),
-            n_missing=len(self.missing),
-            n_branches=n_branches,
-            n_partial_branches=n_partial_branches,
-            n_missing_branches=n_missing_branches,
-            )
-
-    def missing_formatted(self):
-        """The missing line numbers, formatted nicely.
-
-        Returns a string like "1-2, 5-11, 13-14".
-
-        """
-        return format_lines(self.statements, self.missing)
-
-    def has_arcs(self):
-        """Were arcs measured in this result?"""
-        return self.coverage.data.has_arcs()
-
-    def arc_possibilities(self):
-        """Returns a sorted list of the arcs in the code."""
-        arcs = self.parser.arcs()
-        return arcs
-
-    def arcs_executed(self):
-        """Returns a sorted list of the arcs actually executed in the code."""
-        executed = self.coverage.data.executed_arcs(self.filename)
-        m2fl = self.parser.first_line
-        executed = [(m2fl(l1), m2fl(l2)) for (l1,l2) in executed]
-        return sorted(executed)
-
-    def arcs_missing(self):
-        """Returns a sorted list of the arcs in the code not executed."""
-        possible = self.arc_possibilities()
-        executed = self.arcs_executed()
-        missing = [
-            p for p in possible
-                if p not in executed
-                    and p[0] not in self.no_branch
-            ]
-        return sorted(missing)
-
-    def arcs_unpredicted(self):
-        """Returns a sorted list of the executed arcs missing from the code."""
-        possible = self.arc_possibilities()
-        executed = self.arcs_executed()
-        # Exclude arcs here which connect a line to itself.  They can occur
-        # in executed data in some cases.  This is where they can cause
-        # trouble, and here is where it's the least burden to remove them.
-        unpredicted = [
-            e for e in executed
-                if e not in possible
-                    and e[0] != e[1]
-            ]
-        return sorted(unpredicted)
-
-    def branch_lines(self):
-        """Returns a list of line numbers that have more than one exit."""
-        exit_counts = self.parser.exit_counts()
-        return [l1 for l1,count in iitems(exit_counts) if count > 1]
-
-    def total_branches(self):
-        """How many total branches are there?"""
-        exit_counts = self.parser.exit_counts()
-        return sum([count for count in exit_counts.values() if count > 1])
-
-    def missing_branch_arcs(self):
-        """Return arcs that weren't executed from branch lines.
-
-        Returns {l1:[l2a,l2b,...], ...}
-
-        """
-        missing = self.arcs_missing()
-        branch_lines = set(self.branch_lines())
-        mba = {}
-        for l1, l2 in missing:
-            if l1 in branch_lines:
-                if l1 not in mba:
-                    mba[l1] = []
-                mba[l1].append(l2)
-        return mba
-
-    def branch_stats(self):
-        """Get stats about branches.
-
-        Returns a dict mapping line numbers to a tuple:
-        (total_exits, taken_exits).
-        """
-
-        exit_counts = self.parser.exit_counts()
-        missing_arcs = self.missing_branch_arcs()
-        stats = {}
-        for lnum in self.branch_lines():
-            exits = exit_counts[lnum]
-            try:
-                missing = len(missing_arcs[lnum])
-            except KeyError:
-                missing = 0
-            stats[lnum] = (exits, exits - missing)
-        return stats
-
-
-class Numbers(object):
-    """The numerical results of measuring coverage.
-
-    This holds the basic statistics from `Analysis`, and is used to roll
-    up statistics across files.
-
-    """
-    # A global to determine the precision on coverage percentages, the number
-    # of decimal places.
-    _precision = 0
-    _near0 = 1.0              # These will change when _precision is changed.
-    _near100 = 99.0
-
-    def __init__(self, n_files=0, n_statements=0, n_excluded=0, n_missing=0,
-                    n_branches=0, n_partial_branches=0, n_missing_branches=0
-                    ):
-        self.n_files = n_files
-        self.n_statements = n_statements
-        self.n_excluded = n_excluded
-        self.n_missing = n_missing
-        self.n_branches = n_branches
-        self.n_partial_branches = n_partial_branches
-        self.n_missing_branches = n_missing_branches
-
-    def set_precision(cls, precision):
-        """Set the number of decimal places used to report percentages."""
-        assert 0 <= precision < 10
-        cls._precision = precision
-        cls._near0 = 1.0 / 10**precision
-        cls._near100 = 100.0 - cls._near0
-    set_precision = classmethod(set_precision)
-
-    def _get_n_executed(self):
-        """Returns the number of executed statements."""
-        return self.n_statements - self.n_missing
-    n_executed = property(_get_n_executed)
-
-    def _get_n_executed_branches(self):
-        """Returns the number of executed branches."""
-        return self.n_branches - self.n_missing_branches
-    n_executed_branches = property(_get_n_executed_branches)
-
-    def _get_pc_covered(self):
-        """Returns a single percentage value for coverage."""
-        if self.n_statements > 0:
-            pc_cov = (100.0 * (self.n_executed + self.n_executed_branches) /
-                        (self.n_statements + self.n_branches))
-        else:
-            pc_cov = 100.0
-        return pc_cov
-    pc_covered = property(_get_pc_covered)
-
-    def _get_pc_covered_str(self):
-        """Returns the percent covered, as a string, without a percent sign.
-
-        Note that "0" is only returned when the value is truly zero, and "100"
-        is only returned when the value is truly 100.  Rounding can never
-        result in either "0" or "100".
-
-        """
-        pc = self.pc_covered
-        if 0 < pc < self._near0:
-            pc = self._near0
-        elif self._near100 < pc < 100:
-            pc = self._near100
-        else:
-            pc = round(pc, self._precision)
-        return "%.*f" % (self._precision, pc)
-    pc_covered_str = property(_get_pc_covered_str)
-
-    def pc_str_width(cls):
-        """How many characters wide can pc_covered_str be?"""
-        width = 3   # "100"
-        if cls._precision > 0:
-            width += 1 + cls._precision
-        return width
-    pc_str_width = classmethod(pc_str_width)
-
-    def __add__(self, other):
-        nums = Numbers()
-        nums.n_files = self.n_files + other.n_files
-        nums.n_statements = self.n_statements + other.n_statements
-        nums.n_excluded = self.n_excluded + other.n_excluded
-        nums.n_missing = self.n_missing + other.n_missing
-        nums.n_branches = self.n_branches + other.n_branches
-        nums.n_partial_branches = (
-            self.n_partial_branches + other.n_partial_branches
-            )
-        nums.n_missing_branches = (
-            self.n_missing_branches + other.n_missing_branches
-            )
-        return nums
-
-    def __radd__(self, other):
-        # Implementing 0+Numbers allows us to sum() a list of Numbers.
-        if other == 0:
-            return self
-        return NotImplemented