python3 updates

lib/coinchooser.py

@@ -68,7 +68,7 @@ class PRNG:
         return seq[self.randint(0, len(seq))]
 
     def shuffle(self, x):
-        for i in reversed(xrange(1, len(x))):
+        for i in reversed(range(1, len(x))):
             # pick an element in x[:i+1] with which to exchange x[i]
             j = self.randint(0, i+1)
             x[i], x[j] = x[j], x[i]

plugins/trustedcoin/trustedcoin.py

@@ -29,8 +29,8 @@ import re
 import requests
 import json
 from hashlib import sha256
-from urlparse import urljoin
+from urllib.parse import urljoin
-from urllib import quote
+from urllib.parse import quote
 
 import electrum
 from electrum import bitcoin