Added get_path() to transports

trezorlib/transport_bridge.py

@@ -52,6 +52,9 @@ class BridgeTransport(Transport):
         self.response = None
 
     def __str__(self):
+        return self.get_path()
+
+    def get_path(self):
         return '%s:%s' % (self.PATH_PREFIX, self.device['path'])
 
     @staticmethod

trezorlib/transport_hid.py

@@ -79,6 +79,9 @@ class HidTransport(Transport):
         self.hid_version = None
 
     def __str__(self):
+        return self.get_path()
+
+    def get_path(self):
         return "%s:%s" % (self.PATH_PREFIX, self.device['path'].decode())
 
     @staticmethod

trezorlib/transport_udp.py

@@ -56,6 +56,9 @@ class UdpTransport(Transport):
         self.socket = None
 
     def __str__(self):
+        return self.get_path()
+
+    def get_path(self):
         return "%s:%s:%s" % ((self.PATH_PREFIX,) + self.device)
 
     @staticmethod

trezorlib/transport_webusb.py

@@ -88,6 +88,9 @@ class WebUsbTransport(Transport):
         self.debug = debug
 
     def __str__(self):
+        return self.get_path()
+
+    def get_path(self):
         return "%s:%s" % (self.PATH_PREFIX, dev_to_str(self.device))
 
     @classmethod