diff --git a/copier/copier.py b/copier/copier.py

index a595baa..7794f48 100644

--- a/copier/copier.py

+++ b/copier/copier.py

@@ -73,13 +73,13 @@ class PMLCopyDevice(device.Device):

     def isCopyActive(self):

         if self.copy_thread is not None:

-            return self.copy_thread.isAlive()

+            return self.copy_thread.is_alive()

         else:

             return False

     def waitForCopyThread(self):

         if self.copy_thread is not None and \

-            self.copy_thread.isAlive():

+            self.copy_thread.is_alive():

             self.copy_thread.join()

diff --git a/fax/fax.py b/fax/fax.py

index 3d69226..0878a64 100644

--- a/fax/fax.py

+++ b/fax/fax.py

@@ -478,13 +478,13 @@ class FaxDevice(device.Device):

     def isSendFaxActive(self):

         if self.send_fax_thread is not None:

-            return self.send_fax_thread.isAlive()

+            return self.send_fax_thread.is_alive()

         else:

             return False

     def waitForSendFaxThread(self):

         if self.send_fax_thread is not None and \

-            self.send_fax_thread.isAlive():

+            self.send_fax_thread.is_alive():

             try:

                 self.send_fax_thread.join()

diff --git a/fax/pmlfax.py b/fax/pmlfax.py

index b68ff6a..b1020d0 100644

--- a/fax/pmlfax.py

+++ b/fax/pmlfax.py

@@ -179,13 +179,13 @@ class PMLFaxDevice(FaxDevice):

     def isUploadLogActive(self):

         if self.upload_log_thread is not None:

-            return self.upload_log_thread.isAlive()

+            return self.upload_log_thread.is_alive()

         else:

             return False

     def waitForUploadLogThread(self):

         if self.upload_log_thread is not None and \

-            self.upload_log_thread.isAlive():

+            self.upload_log_thread.is_alive():

             self.upload_log_thread.join()

diff --git a/scan/sane.py b/scan/sane.py

index b6c4acd..e8f8db8 100755

--- a/scan/sane.py

+++ b/scan/sane.py

@@ -378,14 +378,14 @@ class ScanDevice:

     def isScanActive(self):

         if self.scan_thread is not None:

-            return self.scan_thread.isAlive() and self.scan_thread.scan_active

+            return self.scan_thread.is_alive() and self.scan_thread.scan_active

         else:

             return False

     def waitForScanDone(self):

         if self.scan_thread is not None and \

-            self.scan_thread.isAlive() and \

+            self.scan_thread.is_alive() and \

             self.scan_thread.scan_active:

             try:

@@ -398,9 +398,9 @@ class ScanDevice:

         #time.sleep(0.5)

         if self.scan_thread is not None:

             while True:

-                #print self.scan_thread.isAlive()

+                #print self.scan_thread.is_alive()

                 #print self.scan_thread.scan_active

-                if self.scan_thread.isAlive() and \

+                if self.scan_thread.is_alive() and \

                     self.scan_thread.scan_active:

                     return