[python] cleanup a little

sw/ground_segment/python/messages_app/messagesapp.py

@@ -1,23 +1,17 @@
 #!/usr/bin/env python
 
 import wx
-import getopt
-import sys
 import messagesframe
 
+
 class MessagesApp(wx.App):
     def OnInit(self):
         self.main = messagesframe.MessagesFrame()
         self.main.Show()
         self.SetTopWindow(self.main)
-        #opts, args = getopt.getopt(sys.argv[1:], "p:",
-        #["plot"])
-        #for o,a in opts:
-          #if o in ("-p", "--plot"):
-            #[ac_id, message, field, color, use_x] = a.split(':')
-            #self.main.AddPlot(int(ac_id), message, field, color, bool(int(use_x)))
         return True
 
+
 def main():
     application = MessagesApp(0)
     application.MainLoop()

sw/ground_segment/python/messages_app/messagesframe.py

@@ -4,7 +4,6 @@ import sys
 import os
 import time
 import threading
-import math
 
 PPRZ_HOME = os.getenv("PAPARAZZI_HOME")
 sys.path.append(PPRZ_HOME + "/sw/lib/python")
@@ -17,8 +16,20 @@ DATA_WIDTH = 100
 HEIGHT = 800
 BORDER = 1
 
+
 class MessagesFrame(wx.Frame):
     def message_recv(self, ac_id, name, values):
+        """Handle incoming messages
+
+        Callback function for IvyMessagesInterface
+
+        :param ac_id: aircraft id
+        :type ac_id: int
+        :param name: message name
+        :type name: str
+        :param values: message values
+        :type values: list
+        """
         if ac_id in self.aircrafts and name in self.aircrafts[ac_id].messages:
             if time.time() - self.aircrafts[ac_id].messages[name].last_seen < 0.2:
                 return
@@ -31,11 +42,10 @@ class MessagesFrame(wx.Frame):
         start = 0
         end = book.GetPageCount()
 
-        while (start < end):
+        while start < end:
             if book.GetPageText(start) > name:
                 return start
-            start = start + 1
-
+            start += 1
         return start
 
     def update_leds(self):
@@ -53,7 +63,7 @@ class MessagesFrame(wx.Frame):
         self.timer.start()
 
     def setup_image_list(self, notebook):
-        imageList = wx.ImageList(24,24)
+        imageList = wx.ImageList(24, 24)
 
         image = wx.Image(PPRZ_HOME + "/data/pictures/gray_led24.png")
         bitmap = wx.BitmapFromImage(image)
@@ -84,7 +94,7 @@ class MessagesFrame(wx.Frame):
         grid_sizer = wx.FlexGridSizer(len(aircraft.messages[name].field_names), 2)
 
         index = self.find_page(messages_book, name)
-        messages_book.InsertPage(index, field_panel, name, imageId = 1)
+        messages_book.InsertPage(index, field_panel, name, imageId=1)
         aircraft.messages[name].index = index
 
         # update indexes of pages which are to be moved
@@ -140,5 +150,5 @@ class MessagesFrame(wx.Frame):
 
     def OnClose(self, event):
         self.timer.cancel()
-        self.interface.Shutdown()
+        self.interface.shutdown()
         self.Destroy()

sw/lib/python/messages_tool.py

@@ -7,9 +7,10 @@ import time
 import os
 import re
 
+
 class Message:
     def __init__(self, class_name, name):
-        messages_xml_map.ParseMessages()
+        messages_xml_map.parse_messages()
         self.field_value = []
         self.field_names = messages_xml_map.message_dictionary[class_name][name]
         self.field_controls = []
@@ -17,9 +18,10 @@ class Message:
         self.last_seen = time.clock()
         self.name = name
 
+
 class Aircraft:
-    def __init__(self, id):
-        self.ac_id = id
+    def __init__(self, ac_id):
+        self.ac_id = ac_id
         self.messages = {}
         self.messages_book = None
 

sw/lib/python/messages_xml_map.py

@@ -3,43 +3,28 @@
 from __future__ import absolute_import, print_function
 
 import os
-import sys
-import getopt
 
-messages_path = '%s/conf/messages.xml' % os.getenv("PAPARAZZI_HOME")
+default_messages_file = '%s/conf/messages.xml' % os.getenv("PAPARAZZI_HOME")
 
 message_dictionary = {}
 message_dictionary_types = {}
 message_dictionary_id_name = {}
 message_dictionary_name_id = {}
 
-def Usage(scmd):
-    lpathitem = scmd.split('/')
-    fmt = '''Usage: %s [-h | --help] [-f FILE | --file=FILE]
-where
-\t-h | --help print this message
-\t-f FILE | --file=FILE where FILE is path to messages.xml
-'''
-    print(fmt % lpathitem[-1])
 
-def GetOptions():
-    try:
-        optlist, left_args = getopt.getopt(sys.argv[1:],'hf:', ['help','file='])
-    except getopt.GetoptError:
-        # print help information and exit:
-        Usage(sys.argv[0])
-        sys.exit(2)
-    for o, a in optlist:
-        if o in ("-h", "--help"):
-            Usage(sys.argv[0])
-            sys.exit()
-        elif o in ("-f", "--file"):
-            messages_path = a
+class MessagesNotFound(Exception):
+    def __init__(self, filename):
+        self.filename = filename
+
+    def __str__(self):
+        return "messages file " + repr(self.filename) + " not found"
 
 
-def ParseMessages():
+def parse_messages(messages_file=default_messages_file):
+    if not os.path.isfile(messages_file):
+        raise MessagesNotFound(messages_file)
     from lxml import etree
-    tree = etree.parse( messages_path)
+    tree = etree.parse(messages_file)
     for the_class in tree.xpath("//msg_class[@name]"):
         class_name = the_class.attrib['name']
         if class_name not in message_dictionary:
@@ -53,7 +38,7 @@ def ParseMessages():
                 message_id = the_message.attrib['id']
             else:
                 message_id = the_message.attrib['ID']
-            if (message_id[0:2] == "0x"):
+            if message_id[0:2] == "0x":
                 message_id = int(message_id, 16)
             else:
                 message_id = int(message_id)
@@ -67,12 +52,22 @@ def ParseMessages():
 
             for the_field in the_message.xpath('field[@name]'):
                 # for now, just save the field names -- in the future maybe expand this to save a struct?
-                message_dictionary[class_name][message_name].append( the_field.attrib['name'])
-                message_dictionary_types[class_name][message_id].append( the_field.attrib['type'])
+                message_dictionary[class_name][message_name].append(the_field.attrib['name'])
+                message_dictionary_types[class_name][message_id].append(the_field.attrib['type'])
+
 
 def test():
-    GetOptions()
-    ParseMessages()
+    import argparse
+    parser = argparse.ArgumentParser()
+    parser.add_argument("-f", "--file", help="path to messages.xml file", default=default_messages_file)
+    parser.add_argument("-l", "--list", help="list parsed messages", action="store_true", dest="list_messages")
+    parser.add_argument("-c", "--class", help="message class", dest="msg_class", default="telemetry")
+    args = parser.parse_args()
+    parse_messages(args.file)
+    if args.list_messages:
+        print("Listing %i messages in '%s' msg_class" % (len(message_dictionary[args.msg_class]), args.msg_class))
+        for msg in message_dictionary[args.msg_class]:
+            print(msg)
 
 if __name__ == '__main__':
     test()