do not use enum module

Author: mhecko

repos/system_upgrade/common/actors/scaninstalledtargetkernelversion/libraries/scankernel.py

@@ -55,12 +55,11 @@ def process():
     if not src_kernel_info:
         return  # Will not happen, other actors would inhibit the upgrade
 
-    src_kernel_type = kernel_lib.KernelType(src_kernel_info.type)
     target_ver = get_target_major_version()
-    target_kernel_pkg_name = kernel_lib.get_kernel_pkg_name(target_ver, src_kernel_type)
+    target_kernel_pkg_name = kernel_lib.get_kernel_pkg_name(target_ver, src_kernel_info.type)
     target_kernel_nevra = get_target_kernel_package_nevra(target_kernel_pkg_name)
 
-    if src_kernel_type != kernel_lib.KernelType.ORDINARY and not target_kernel_nevra:
+    if src_kernel_info.type != kernel_lib.KernelType.ORDINARY and not target_kernel_nevra:
         api.current_logger().warning('The kernel-rt-core rpm from the target RHEL has not been detected. Switching '
                                      'to non-preemptive kernel.')
         target_kernel_pkg_name = kernel_lib.get_kernel_pkg_name(target_ver, kernel_lib.KernelType.ORDINARY)

repos/system_upgrade/common/libraries/kernel.py

@@ -1,4 +1,3 @@
-import enum
 from collections import namedtuple
 
 from leapp.exceptions import StopActorExecutionError
@@ -10,7 +9,7 @@
 KERNEL_UNAME_R_PROVIDES = ['kernel-uname-r', 'kernel-rt-uname-r']
 
 
-class KernelType(enum.Enum):
+class KernelType:
     ORDINARY = 'ordinary'
     REALTIME = 'realtime'