fix: removed unused isPy3VersionNumber function

Author: fstagni

src/DIRAC/FrameworkSystem/scripts/dirac_admin_update_instance.py

@@ -116,12 +116,6 @@ def updateHost(hostName, version):
             gLogger.error("Cannot connect to %s" % host)
             return result
 
-        # If the server is already running python 3,
-        # convert the version to be installed to python3
-        existingVersion = result["Value"]["version"]
-        if DIRAC.isPy3VersionNumber(existingVersion):
-            version = DIRAC.convertToPy3VersionNumber(version)
-
         gLogger.notice(
             "Initiating software update of %s to %s, this can take a while, please be patient ..." % (host, version)
         )

src/DIRAC/__init__.py

@@ -89,21 +89,6 @@
 alarmMail = "[email protected]"
 
 
-def isPy3VersionNumber(releaseVersion):
-    """Returns True if the releaseVersion is a PEP-440 style string.
-    This is the `is_canonical` function defined in PEP-440 Appendix B
-
-    :param str releaseVersion: The software version to use
-    """
-    return (
-        re.match(
-            r"^([1-9][0-9]*!)?(0|[1-9][0-9]*)(\.(0|[1-9][0-9]*))*((a|b|rc)(0|[1-9][0-9]*))?(\.post(0|[1-9][0-9]*))?(\.dev(0|[1-9][0-9]*))?$",
-            releaseVersion,
-        )
-        is not None
-    )
-
-
 def convertToPy3VersionNumber(releaseVersion):
     """Convert the releaseVersion into a PEP-440 style string