Decode bytes before running string operations on the same

[rohit-mundra]

Post execution of grep on vlan information for interface and when tc tool is executed get qdisc information for the device, the bytes must be converted to string to run split and regex.

resolve: #84

[ntnx-alay]

Looks good to me. This would uncover in certain conditions where vlan is enabled. Otherwise code path is not exercised.

[prasheshpatel]

The code change resolves #84 impacting Socket Priority to User Priority mapping for a parent PF device of the VLAN device.

[tzafrir-mellanox]

When removing spaces, you also removed useful spaces. Please fix that.

[rohit-mundra]

When removing spaces, you also removed useful spaces. Please fix that.

Not able to find which space I have removed, as I have added just the decode calls to line variable.

[rohit.mundra@rohit-mundra mlnx-tools]$ git diff HEAD~2

diff --git a/python/tc_wrap.py b/python/tc_wrap.py
index b6fbe5e..54180bc 100755
--- a/python/tc_wrap.py
+++ b/python/tc_wrap.py
@@ -53,7 +53,7 @@ class skprio2up:
                                "* 2> /dev/null", shell=True, bufsize=4096,
                                stdout=PIPE).stdout
                for line in output:
-                       param, val=line.strip().split(":", 1)
+                       param, val=line.decode("utf-8").strip().split(":", 1)
                        vlan = param.split('.')[-1]
                        for item in val.split(":", 1)[1].split():
                                skprio, up = item.split(':')
@@ -150,7 +150,7 @@ class tcnum_mqprio(tcnum):

                for line in output:
                        empty=False
-                       m = re.search(r'tc (\d)', line)
+                       m = re.search(r'tc (\d)', line.decode("utf-8"))
                        if m:
                                self.tc_num = m.group(1)