[PATCH] usertools: fix python warnings

[Stephen Hemminger <stephen@networkplumber.org>]

This fixes most of the flake8 style warnings on the telemetry
script.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 usertools/dpdk-telemetry-client.py | 37 +++++++++++++++++++-----------
 1 file changed, 24 insertions(+), 13 deletions(-)

diff --git a/usertools/dpdk-telemetry-client.py b/usertools/dpdk-telemetry-client.py
index f1561af4c6b2..8e8efc151218 100755
--- a/usertools/dpdk-telemetry-client.py
+++ b/usertools/dpdk-telemetry-client.py
@@ -4,7 +4,6 @@
 
 import socket
 import os
-import sys
 import time
 import argparse
 
@@ -18,6 +17,7 @@
 DEFAULT_PREFIX = 'rte'
 RUNTIME_SOCKET_NAME = 'telemetry'
 
+
 class Socket:
 
     def __init__(self):
@@ -33,9 +33,11 @@ def __del__(self):
         except:
             print("Error - Sockets could not be closed")
 
+
 class Client:
 
-    def __init__(self): # Creates a client instance
+    def __init__(self):
+        # Creates a client instance
         self.socket = Socket()
         self.file_path = None
         self.run_path = None
@@ -45,24 +47,26 @@ def __init__(self): # Creates a client instance
     def __del__(self):
         try:
             if self.unregistered == 0:
-                self.unregister();
+                self.unregister()
         except:
             print("Error - Client could not be destroyed")
 
-    def getFilepath(self, file_path): # Gets arguments from Command-Line and assigns to instance of client
+    def getFilepath(self, file_path):
+        # Gets arguments from Command-Line and assigns to instance of client
         self.file_path = file_path
 
     def setRunpath(self, file_path):
         self.run_path = os.path.join(get_dpdk_runtime_dir(args.file_prefix),
                                      RUNTIME_SOCKET_NAME)
 
-    def register(self): # Connects a client to DPDK-instance
+    def register(self):
+        # Connects a client to DPDK-instance
         if os.path.exists(self.file_path):
             os.unlink(self.file_path)
         try:
             self.socket.recv_fd.bind(self.file_path)
         except socket.error as msg:
-            print ("Error - Socket binding error: " + str(msg) + "\n")
+            print("Error - Socket binding error: " + str(msg) + "\n")
         self.socket.recv_fd.settimeout(2)
         self.socket.send_fd.connect(self.run_path)
         JSON = (API_REG + self.file_path + "\"}}")
@@ -71,30 +75,36 @@ def register(self): # Connects a client to DPDK-instance
         self.socket.recv_fd.listen(1)
         self.socket.client_fd = self.socket.recv_fd.accept()[0]
 
-    def unregister(self): # Unregister a given client
+    def unregister(self):
+        # Unregister a given client
         self.socket.client_fd.send((API_UNREG + self.file_path + "\"}}").encode())
         self.socket.client_fd.close()
 
-    def requestMetrics(self): # Requests metrics for given client
+    def requestMetrics(self):
+        # Requests metrics for given client
         self.socket.client_fd.send(METRICS_REQ.encode())
         data = self.socket.client_fd.recv(BUFFER_SIZE).decode()
         print("\nResponse: \n", data)
 
-    def repeatedlyRequestMetrics(self, sleep_time): # Recursively requests metrics for given client
+    def repeatedlyRequestMetrics(self, sleep_time):
+        # Recursively requests metrics for given client
         print("\nPlease enter the number of times you'd like to continuously request Metrics:")
         n_requests = int(input("\n:"))
-        print("\033[F") #Removes the user input from screen, cleans it up
+        # Removes the user input from screen, cleans it up
+        print("\033[F")
         print("\033[K")
         for i in range(n_requests):
             self.requestMetrics()
             time.sleep(sleep_time)
 
-    def requestGlobalMetrics(self): #Requests global metrics for given client
+    def requestGlobalMetrics(self):
+        # Requests global metrics for given client
         self.socket.client_fd.send(GLOBAL_METRICS_REQ.encode())
         data = self.socket.client_fd.recv(BUFFER_SIZE).decode()
         print("\nResponse: \n", data)
 
-    def interactiveMenu(self, sleep_time): # Creates Interactive menu within the script
+    def interactiveMenu(self, sleep_time):
+        # Creates Interactive menu within the script
         while self.choice != 4:
             print("\nOptions Menu")
             print("[1] Send for Metrics for all ports")
@@ -104,7 +114,8 @@ def interactiveMenu(self, sleep_time): # Creates Interactive menu within the scr
 
             try:
                 self.choice = int(input("\n:"))
-                print("\033[F") #Removes the user input for screen, cleans it up
+                # Removes the user input for screen, cleans it up
+                print("\033[F")
                 print("\033[K")
                 if self.choice == 1:
                     self.requestMetrics()
-- 
2.39.0