diff --git a/Lib/test/test_urllib.py b/Lib/test/test_urllib.py
index 7a3f207..e94fc22 100644
--- a/Lib/test/test_urllib.py
+++ b/Lib/test/test_urllib.py
@@ -30,7 +30,7 @@
 
     def setUp(self):
         """Setup of a temp file to use for testing"""
-        self.text = "test_urllib: %s\n" % self.__class__.__name__
+        self.text = bytes("test_urllib: %s\n" % self.__class__.__name__)
         FILE = open(test_support.TESTFN, 'wb')
         try:
             FILE.write(self.text)
@@ -57,7 +57,7 @@
 
     def test_readline(self):
         self.assertEqual(self.text, self.returned_obj.readline())
-        self.assertEqual('', self.returned_obj.readline(),
+        self.assertEqual(b'', self.returned_obj.readline(),
                          "calling readline() after exhausting the file did not"
                          " return an empty string")
 
@@ -150,7 +150,7 @@
 
         # Create a temporary file.
         self.registerFileForCleanUp(test_support.TESTFN)
-        self.text = 'testing urllib.urlretrieve'
+        self.text = b'testing urllib.urlretrieve'
         try:
             FILE = open(test_support.TESTFN, 'wb')
             FILE.write(self.text)
diff --git a/Lib/urllib.py b/Lib/urllib.py
index c6bd87f..dcd906c 100644
--- a/Lib/urllib.py
+++ b/Lib/urllib.py
@@ -245,7 +245,7 @@
             reporthook(blocknum, bs, size)
         while 1:
             block = fp.read(bs)
-            if block == "":
+            if not block:
                 break
             read += len(block)
             tfp.write(block)
@@ -976,7 +976,7 @@
 
 def unwrap(url):
     """unwrap('<URL:type://host/path>') --> 'type://host/path'."""
-    url = url.strip()
+    url = str(url).strip()
     if url[:1] == '<' and url[-1:] == '>':
         url = url[1:-1].strip()
     if url[:4] == 'URL:': url = url[4:].strip()