first pass at removing all python2 specific dependencies, updating python requirements.txt/setup.py/Pipfiles/Makefiles, and removing python2 compat imports

daemon/core/api/tlv/coreapi.py

@@ -9,8 +9,6 @@ import socket
 import struct
 from enum import Enum
 
-from past.builtins import basestring
-
 from core.api.tlv import structutils
 from core.emulator.enumerations import (
     ConfigTlvs,
@@ -181,7 +179,7 @@ class CoreTlvDataString(CoreTlvData):
         :return: length of data packed and the packed data
         :rtype: tuple
         """
-        if not isinstance(value, basestring):
+        if not isinstance(value, str):
             raise ValueError("value not a string: %s" % type(value))
         value = value.encode("utf-8")
 

daemon/core/api/tlv/structutils.py

@@ -4,8 +4,6 @@ Utilities for working with python struct data.
 
 import logging
 
-from past.builtins import basestring
-
 
 def pack_values(clazz, packers):
     """
@@ -31,7 +29,7 @@ def pack_values(clazz, packers):
 
         # only pack actual values and avoid packing empty strings
         # protobuf defaults to empty strings and does no imply a value to set
-        if value is None or (isinstance(value, basestring) and not value):
+        if value is None or (isinstance(value, str) and not value):
             continue
 
         # transform values as needed