def clean_semver(cls, version_spec):
        return re.sub(r"([<>=~])\s+?v?", "\\1", version_spec, re.IGNORECASE)
def getProvides(self):
		"""Fetch a spec file from pkgdb and get provides from all its [sub]packages"""
		if self.sp_obj == None:
			return {}

		return self.sp_obj.getProvides()