def iterateDirectories(thispath,maxim,fname):
    saved_files=[0]
    stop=False
    # Saved files: Index start at 0 but file saving starts at 1
    info_report = defaultdict(lambda: [])
    ind=0
    for subdir, dirs, files in os.walk(thispath):
        if(stop==False):
            found=False
            #print("Scanning: " + subdir)
            for file in files:
                file_name = file.partition('_')[0]
                #print os.path.join(subdir, file)
                filepath = subdir + os.sep + file

                if filepath.endswith(".txt"):
                    try:
                        thisReport = processFile(file,subdir)
                        found=True
                    except MemoryError as err:
                        print("MemoryError: ")
                        dfs_in_memory()
                        continue
                    except:
                        print("EXCEPTION AT ITERATE DIRS")
                        continue
                    if(not is_empty_frame(thisReport)):
                        info_report[subdir].append(thisReport)

            #After traversal of one directory, join all dframes and save to persistent storage
            #Then delete all DF's to save memory usage
            #uid = saved_files[-1:] #Last element
            if(found==True): #uid[0] != "False" and
                #uid = uid[0] + 1
                #dfs_in_memory()
                #saveall_df(info_report[subdir],uid) #Save and delete
                #saved_files.append(uid)
                ind+=1
                try:
                    append_csv(info_report[subdir],fname)
                except:
                    print("ERROR: Appending failed. One more attempt..")
                    try:
                        append_csv(info_report[subdir],fname)
                    except:
                        print("Error: Given up appending line.")


                info_report[subdir] = [] #Remove values.
                #print("File Uid: " + str(uid) + " saved.")
                print("Subdir: " + str(subdir))
                print(str(ind)+ " Files saved so far")
                if(ind==maxim):
                    print("=========================END SCAN [Max_Bound] =========================")
                    stop=True
                    return True

                #dfs_in_memory()
            else:
                pass

    print("=========================END SCAN=========================")
    return True