Re #13987. Removing pylint warnings

tools/scripts/extractAlgorithmNames.py

 # simply just print out all algorithm names in a directory which can be piped
 # to a file
 
-import string, os, re
-
 import glob
-import mmap
-
 
 os.chdir("PythonInterface/plugins/algorithms/WorkflowAlgorithms")
-for file in glob.glob("*.py"):
+for filename in glob.glob("*.py"):
     #print file
-    if 'PythonAlgorithm' in open(file).read():
-        print file
+    if 'PythonAlgorithm' in open(filename).read():
+        print filename
 
 
 #os.chdir("LiveData/src")
@@ -19,4 +15,3 @@ for file in glob.glob("*.py"):
 #    #print file
 #    if 'DECLARE_ALGORITHM' in open(file).read():
 #        print file
-