@staticmethod
    def parse_change_desc(changedesc, changenum, allow_empty=False):
        if not changedesc:
            return None

        changeset = ChangeSet()
        try:
            changeset.changenum = int(changedesc['change'])
        except ValueError:
            changeset.changenum = changenum

        # At it's most basic, a perforce changeset description has three
        # sections.
        #
        # ---------------------------------------------------------
        # Change <num> by <user>@<client> on <timestamp> *pending*
        #
        #         description...
        #         this can be any number of lines
        #
        # Affected files ...
        #
        # //depot/branch/etc/file.cc#<revision> branch
        # //depot/branch/etc/file.hh#<revision> delete
        # ---------------------------------------------------------
        #
        # At the moment, we only care about the description and the list of
        # files.  We take the first line of the description as the summary.
        #
        # We parse the username out of the first line to check that one user
        # isn't attempting to "claim" another's changelist.  We then split
        # everything around the 'Affected files ...' line, and process the
        # results.
        changeset.username = changedesc['user']

        try:
            changeset.description = changedesc['desc'].decode('utf-8')
        except UnicodeDecodeError:
            changeset.description = changedesc['desc'].decode('utf-8',
                                                              'replace')

        if changedesc['status'] == "pending":
            changeset.pending = True
        try:
            changeset.files = changedesc['depotFile']
        except KeyError:
            if not allow_empty:
                raise EmptyChangeSetError(changenum)

        split = changeset.description.find('\n\n')
        if 0 >= split and split < 100:
            changeset.summary = \
                changeset.description.split('\n\n', 1)[0].replace('\n', ' ')
        else:
            changeset.summary = changeset.description.split('\n', 1)[0]

        return changeset
dataset/ETHPy150Open reviewboard/reviewboard/reviewboard/scmtools/perforce.py/PerforceTool.parse_change_desc/swapped operands of `>=`