diff --git a/Lib/poplib.py b/Lib/poplib.py
index ba40572..58ebb50 100644
--- a/Lib/poplib.py
+++ b/Lib/poplib.py
@@ -307,89 +307,95 @@
             return self._shortcmd('UIDL %s' % which)
         return self._longcmd('UIDL')
 
-class POP3_SSL(POP3):
-    """POP3 client class over SSL connection
+try:
+    import ssl
+except ImportError:
+    pass
+else:
 
-    Instantiate with: POP3_SSL(hostname, port=995, keyfile=None, certfile=None)
+    class POP3_SSL(POP3):
+        """POP3 client class over SSL connection
 
-           hostname - the hostname of the pop3 over ssl server
-           port - port number
-           keyfile - PEM formatted file that countains your private key
-           certfile - PEM formatted certificate chain file
+        Instantiate with: POP3_SSL(hostname, port=995, keyfile=None, certfile=None)
 
-        See the methods of the parent class POP3 for more documentation.
-    """
+               hostname - the hostname of the pop3 over ssl server
+               port - port number
+               keyfile - PEM formatted file that countains your private key
+               certfile - PEM formatted certificate chain file
 
-    def __init__(self, host, port = POP3_SSL_PORT, keyfile = None, certfile = None):
-        self.host = host
-        self.port = port
-        self.keyfile = keyfile
-        self.certfile = certfile
-        self.buffer = ""
-        msg = "getaddrinfo returns an empty list"
-        self.sock = None
-        for res in socket.getaddrinfo(self.host, self.port, 0, socket.SOCK_STREAM):
-            af, socktype, proto, canonname, sa = res
-            try:
-                self.sock = socket.socket(af, socktype, proto)
-                self.sock.connect(sa)
-            except socket.error, msg:
-                if self.sock:
-                    self.sock.close()
-                self.sock = None
-                continue
-            break
-        if not self.sock:
-            raise socket.error, msg
-        self.file = self.sock.makefile('rb')
-        self.sslobj = socket.ssl(self.sock, self.keyfile, self.certfile)
-        self._debugging = 0
-        self.welcome = self._getresp()
+            See the methods of the parent class POP3 for more documentation.
+        """
 
-    def _fillBuffer(self):
-        localbuf = self.sslobj.read()
-        if len(localbuf) == 0:
-            raise error_proto('-ERR EOF')
-        self.buffer += localbuf
+        def __init__(self, host, port = POP3_SSL_PORT, keyfile = None, certfile = None):
+            self.host = host
+            self.port = port
+            self.keyfile = keyfile
+            self.certfile = certfile
+            self.buffer = ""
+            msg = "getaddrinfo returns an empty list"
+            self.sock = None
+            for res in socket.getaddrinfo(self.host, self.port, 0, socket.SOCK_STREAM):
+                af, socktype, proto, canonname, sa = res
+                try:
+                    self.sock = socket.socket(af, socktype, proto)
+                    self.sock.connect(sa)
+                except socket.error, msg:
+                    if self.sock:
+                        self.sock.close()
+                    self.sock = None
+                    continue
+                break
+            if not self.sock:
+                raise socket.error, msg
+            self.file = self.sock.makefile('rb')
+            self.sslobj = ssl.sslsocket(self.sock, self.keyfile, self.certfile)
+            self._debugging = 0
+            self.welcome = self._getresp()
 
-    def _getline(self):
-        line = ""
-        renewline = re.compile(r'.*?\n')
-        match = renewline.match(self.buffer)
-        while not match:
-            self._fillBuffer()
+        def _fillBuffer(self):
+            localbuf = self.sslobj.read()
+            if len(localbuf) == 0:
+                raise error_proto('-ERR EOF')
+            self.buffer += localbuf
+
+        def _getline(self):
+            line = ""
+            renewline = re.compile(r'.*?\n')
             match = renewline.match(self.buffer)
-        line = match.group(0)
-        self.buffer = renewline.sub('' ,self.buffer, 1)
-        if self._debugging > 1: print '*get*', repr(line)
+            while not match:
+                self._fillBuffer()
+                match = renewline.match(self.buffer)
+            line = match.group(0)
+            self.buffer = renewline.sub('' ,self.buffer, 1)
+            if self._debugging > 1: print '*get*', repr(line)
 
-        octets = len(line)
-        if line[-2:] == CRLF:
-            return line[:-2], octets
-        if line[0] == CR:
-            return line[1:-1], octets
-        return line[:-1], octets
+            octets = len(line)
+            if line[-2:] == CRLF:
+                return line[:-2], octets
+            if line[0] == CR:
+                return line[1:-1], octets
+            return line[:-1], octets
 
-    def _putline(self, line):
-        if self._debugging > 1: print '*put*', repr(line)
-        line += CRLF
-        bytes = len(line)
-        while bytes > 0:
-            sent = self.sslobj.write(line)
-            if sent == bytes:
-                break    # avoid copy
-            line = line[sent:]
-            bytes = bytes - sent
+        def _putline(self, line):
+            if self._debugging > 1: print '*put*', repr(line)
+            line += CRLF
+            bytes = len(line)
+            while bytes > 0:
+                sent = self.sslobj.write(line)
+                if sent == bytes:
+                    break    # avoid copy
+                line = line[sent:]
+                bytes = bytes - sent
 
-    def quit(self):
-        """Signoff: commit changes on server, unlock mailbox, close connection."""
-        try:
-            resp = self._shortcmd('QUIT')
-        except error_proto, val:
-            resp = val
-        self.sock.close()
-        del self.sslobj, self.sock
-        return resp
+        def quit(self):
+            """Signoff: commit changes on server, unlock mailbox, close connection."""
+            try:
+                resp = self._shortcmd('QUIT')
+            except error_proto, val:
+                resp = val
+            self.sock.close()
+            del self.sslobj, self.sock
+            return resp
 
 
 if __name__ == "__main__":