Bingo Viewer now ignores errors when trying to read the file more

gracefully.  Readd the ability to push JSON information about bingo
state.

BingoDisplay.py

@@ -1,7 +1,10 @@
 import argparse
 import time
 import sys
+import json
 import os.path
+import urllib.request
+import urllib.parse
 import re
 from tkinter import filedialog as fd
 from tkinter import font
@@ -144,7 +147,7 @@ def parseBingoLine(self,bingoLine):
         bingoMatches=self.bingoLineMatch.match(bingoLine)
         if (bingoMatches==None):
             return
-
+        
         bingoNumber=int(bingoMatches.group('key'))
         bingoCoord = self.bingoNumberToCoord(bingoNumber)
 
@@ -160,8 +163,12 @@ def parseBingoLine(self,bingoLine):
     def readBingoFile(self):
         allLines = dict()
         try:
-            with open(self.targetFile) as file:
-                bingoFile = file.readlines()
+            try:
+                with open(self.targetFile) as file:
+                    bingoFile = file.readlines()
+            except Exception as e:
+                print("Couldn't read file, ignoring - "+str(e));
+                return False
 
             for line in bingoFile:
                 if BINGO_MOD_LINE_DETECT in line:
@@ -216,29 +223,29 @@ def generateBingoStateJson(self):
                 square["possible"]=self.board[x][y]["active"]!=-1
                 #print(square)
                 board.append(square)
-        #return {"bingo":json.dumps({"bingo":board},indent=4)}
+        #return json.dumps(board,indent=4)
+        return {"bingo":json.dumps({"bingo":board},indent=4)}
 
     def sendBingoState(self):
-        pass
-        # if not os.path.isfile(JSON_DEST_FILENAME):
-        #     return
-
-        # f = open(JSON_DEST_FILENAME,'r')
-        # desturl=f.readline()
-        # f.close()
-
-        # if (desturl==""):
-        #     print("Make sure to specify where you want to push your json!")
-        #     return
-
-        # bingoState = self.generateBingoStateJson()
-        # #print(bingoState)
-        # try:
-        #     r = urllib.request.urlopen(desturl,data=urllib.parse.urlencode(bingoState).encode('utf-8'))
-        #     #print(r.status)
-        #     #print(r.read().decode('utf-8'))
-        # except Exception as e:
-        #     print("Couldn't push JSON to "+desturl+" - "+str(e))
+        if not os.path.isfile(JSON_DEST_FILENAME):
+            return
+
+        f = open(JSON_DEST_FILENAME,'r')
+        desturl=f.readline()
+        f.close()
+
+        if (desturl==""):
+            print("Make sure to specify where you want to push your json!")
+            return
+
+        bingoState = self.generateBingoStateJson()
+        #print(bingoState)
+        try:
+            r = urllib.request.urlopen(desturl,data=urllib.parse.urlencode(bingoState).encode('utf-8'))
+            #print(r.status)
+            #print(r.read().decode('utf-8'))
+        except Exception as e:
+            print("Couldn't push JSON to "+desturl+" - "+str(e))
 
 
 def saveLastUsedBingoFile(f):