Revert "Update py_json files to be compatible with pip standards"

This reverts commit 0be47c82de.

py-json/LANforge/lfcli_base.py

@@ -1,9 +1,11 @@
 #!env /usr/bin/python
 
 import sys
+import signal
 import traceback
 # Extend this class to use common set of debug and request features for your script
 from pprint import pprint
+import time
 import random
 import string
 import datetime
@@ -12,6 +14,7 @@ import LANforge.LFUtils
 from LANforge.LFUtils import *
 from LANforge import LFRequest
 import LANforge.LFRequest
+import csv
 import pandas as pd
 import os