updated for pep8 conformity

osaca/get_instr.py

@@ -1,5 +1,5 @@
 #!/apps/python/3.5-anaconda/bin/python
-import sys, os, re
+import os, re
 import argparse
 from testcase import Testcase
 from param import Register, MemAddr, Parameter
@@ -14,7 +14,6 @@ class Instr_extractor(object):
     db = {} 
     sorted_db = []
     lncnt = 1
-    fname = ''
     cntChar = ''
     first = True
     # Constant variables
@@ -38,7 +37,6 @@ class Instr_extractor(object):
        
 
     def extract_instr(self, asmFile):
-        fname = asmFile
         # Check if parameter is in the correct file format
         if(not self.is_elffile(asmFile)):
             print('Invalid argument')