testbeds: qemu: use % for formatting strings

1 files changed, 8 insertions, 8 deletions

diff --git a/rumba/testbeds/qemu.py b/rumba/testbeds/qemu.py
index 897af37..1830b37 100644
--- a/rumba/testbeds/qemu.py
+++ b/rumba/testbeds/qemu.py
@@ -57,7 +57,7 @@ class Testbed(mod.Testbed):
             for command in commands:
                 if not error_queue.empty():
                     break
-                print('DEBUG: executing >> {}'.format(command))
+                print('DEBUG: executing >> %s' % command)
                 subprocess.check_call(command.split())
 
             results_queue.put("Command chain ran correctly.")
@@ -70,7 +70,7 @@ class Testbed(mod.Testbed):
         :param experiment: The experiment running
         """
         if os.geteuid() != 0:
-            pw = getpass.getpass('[sudo] password for {}:'.format(getpass.getuser()))
+            pw = getpass.getpass('[sudo] password for %s:' % getpass.getuser())
             if '"' in pw or "'" in pw:
                 print('Illegal password: contains " or \'')
                 raise Exception('Not authenticated')
@@ -142,8 +142,8 @@ class Testbed(mod.Testbed):
             # Check for errors
             if not e_queue.empty():
                 error_str = str(e_queue.get())
-                print('Testbed instantiation failed: {}'.format(error_str))
-                raise Exception('Failure: {}'.format(error_str))
+                print('Testbed instantiation failed: %s' % error_str)
+                raise Exception('Failure: %s' % error_str)
             try:
                 # Check for results
                 result = r_queue.get(timeout=1)
@@ -218,12 +218,12 @@ class Testbed(mod.Testbed):
 
             booting_budget -= 1
             if booting_budget <= 0:
-                print('Sleeping for {} seconds to give the machines time to boot up.'.format(boot_backoff))
+                print('Sleeping for %s seconds to give the machines time to boot up.' % boot_backoff)
                 time.sleep(boot_backoff)
                 booting_budget = boot_batch_size
 
             with open('%s/qemu_out_%s' % (self.qemu_logs_dir, vmid), 'w') as out_file:
-                print('DEBUG: executing >> {}'.format(command))
+                print('DEBUG: executing >> %s' % command)
                 self.boot_processes.append(subprocess.Popen(command.split(), stdout=out_file))
                 pass
 
@@ -268,7 +268,7 @@ class Testbed(mod.Testbed):
         while max_waiting_time > 0 and over_processes < total_processes:
             # Check for errors
             if not error_queue.empty():
-                print('Failure while shutting down: {}'.format(str(error_queue.get())))
+                print('Failure while shutting down: %s' % str(error_queue.get()))
                 over_processes += 1
             try:
                 # Check for results
@@ -300,7 +300,7 @@ class Testbed(mod.Testbed):
         while max_waiting_time > 0 and over_processes < total_processes:
             # Check for errors
             if not error_queue.empty():
-                print('Failure while shutting down: {}'.format(str(error_queue.get())))
+                print('Failure while shutting down: %s' % str(error_queue.get()))
                 over_processes += 1
             try:
                 # Check for results