version.py 文件源码

def parse (self, vstring):
        match = self.version_re.match(vstring)
        if not match:
            raise ValueError, "invalid version number '%s'" % vstring

        (major, minor, patch, prerelease, prerelease_num) = \
            match.group(1, 2, 4, 5, 6)

        if patch:
            self.version = tuple(map(string.atoi, [major, minor, patch]))
        else:
            self.version = tuple(map(string.atoi, [major, minor]) + [0])

        if prerelease:
            self.prerelease = (prerelease[0], string.atoi(prerelease_num))
        else:
            self.prerelease = None