diff --git a/gns3server/modules/dynamips/__init__.py b/gns3server/modules/dynamips/__init__.py
index 1edc2a39..47dd96a5 100644
--- a/gns3server/modules/dynamips/__init__.py
+++ b/gns3server/modules/dynamips/__init__.py
@@ -215,7 +215,7 @@ class Dynamips(BaseManager):
             rhost = nio_settings["rhost"]
             rport = nio_settings["rport"]
             try:
-                #TODO: handle IPv6
+                # TODO: handle IPv6
                 with socket.socket(socket.AF_INET, socket.SOCK_DGRAM) as sock:
                     sock.connect((rhost, rport))
             except OSError as e:
diff --git a/gns3server/modules/dynamips/adapters/adapter.py b/gns3server/modules/dynamips/adapters/adapter.py
index d963933e..40d82c7e 100644
--- a/gns3server/modules/dynamips/adapters/adapter.py
+++ b/gns3server/modules/dynamips/adapters/adapter.py
@@ -17,6 +17,7 @@
 
 
 class Adapter(object):
+
     """
     Base class for adapters.
 
diff --git a/gns3server/modules/dynamips/adapters/c1700_mb_1fe.py b/gns3server/modules/dynamips/adapters/c1700_mb_1fe.py
index 3c67f3df..c94f551d 100644
--- a/gns3server/modules/dynamips/adapters/c1700_mb_1fe.py
+++ b/gns3server/modules/dynamips/adapters/c1700_mb_1fe.py
@@ -19,6 +19,7 @@ from .adapter import Adapter
 
 
 class C1700_MB_1FE(Adapter):
+
     """
     Integrated 1 port FastEthernet adapter for c1700 platform.
     """
diff --git a/gns3server/modules/dynamips/adapters/c1700_mb_wic1.py b/gns3server/modules/dynamips/adapters/c1700_mb_wic1.py
index eca72358..9c6d2190 100644
--- a/gns3server/modules/dynamips/adapters/c1700_mb_wic1.py
+++ b/gns3server/modules/dynamips/adapters/c1700_mb_wic1.py
@@ -19,6 +19,7 @@ from .adapter import Adapter
 
 
 class C1700_MB_WIC1(Adapter):
+
     """
     Fake module to provide a placeholder for slot 1 interfaces when WICs
     are inserted into WIC slot 1.
diff --git a/gns3server/modules/dynamips/adapters/c2600_mb_1e.py b/gns3server/modules/dynamips/adapters/c2600_mb_1e.py
index 26fe5497..bebe7fa9 100644
--- a/gns3server/modules/dynamips/adapters/c2600_mb_1e.py
+++ b/gns3server/modules/dynamips/adapters/c2600_mb_1e.py
@@ -19,6 +19,7 @@ from .adapter import Adapter
 
 
 class C2600_MB_1E(Adapter):
+
     """
     Integrated 1 port Ethernet adapter for the c2600 platform.
     """
diff --git a/gns3server/modules/dynamips/adapters/c2600_mb_1fe.py b/gns3server/modules/dynamips/adapters/c2600_mb_1fe.py
index 768d9c95..1ad294f2 100644
--- a/gns3server/modules/dynamips/adapters/c2600_mb_1fe.py
+++ b/gns3server/modules/dynamips/adapters/c2600_mb_1fe.py
@@ -19,6 +19,7 @@ from .adapter import Adapter
 
 
 class C2600_MB_1FE(Adapter):
+
     """
     Integrated 1 port FastEthernet adapter for the c2600 platform.
     """
diff --git a/gns3server/modules/dynamips/adapters/c2600_mb_2e.py b/gns3server/modules/dynamips/adapters/c2600_mb_2e.py
index c2ca7442..1e42d5dd 100644
--- a/gns3server/modules/dynamips/adapters/c2600_mb_2e.py
+++ b/gns3server/modules/dynamips/adapters/c2600_mb_2e.py
@@ -19,6 +19,7 @@ from .adapter import Adapter
 
 
 class C2600_MB_2E(Adapter):
+
     """
     Integrated 2 port Ethernet adapter for the c2600 platform.
     """
diff --git a/gns3server/modules/dynamips/adapters/c2600_mb_2fe.py b/gns3server/modules/dynamips/adapters/c2600_mb_2fe.py
index a7e6df14..dcd96581 100644
--- a/gns3server/modules/dynamips/adapters/c2600_mb_2fe.py
+++ b/gns3server/modules/dynamips/adapters/c2600_mb_2fe.py
@@ -19,6 +19,7 @@ from .adapter import Adapter
 
 
 class C2600_MB_2FE(Adapter):
+
     """
     Integrated 2 port FastEthernet adapter for the c2600 platform.
     """
diff --git a/gns3server/modules/dynamips/adapters/c7200_io_2fe.py b/gns3server/modules/dynamips/adapters/c7200_io_2fe.py
index 0b8ae8a4..8b545e99 100644
--- a/gns3server/modules/dynamips/adapters/c7200_io_2fe.py
+++ b/gns3server/modules/dynamips/adapters/c7200_io_2fe.py
@@ -19,6 +19,7 @@ from .adapter import Adapter
 
 
 class C7200_IO_2FE(Adapter):
+
     """
     C7200-IO-2FE FastEthernet Input/Ouput controller.
     """
diff --git a/gns3server/modules/dynamips/adapters/c7200_io_fe.py b/gns3server/modules/dynamips/adapters/c7200_io_fe.py
index 56e86cf1..784b154d 100644
--- a/gns3server/modules/dynamips/adapters/c7200_io_fe.py
+++ b/gns3server/modules/dynamips/adapters/c7200_io_fe.py
@@ -19,6 +19,7 @@ from .adapter import Adapter
 
 
 class C7200_IO_FE(Adapter):
+
     """
     C7200-IO-FE FastEthernet Input/Ouput controller.
     """
diff --git a/gns3server/modules/dynamips/adapters/c7200_io_ge_e.py b/gns3server/modules/dynamips/adapters/c7200_io_ge_e.py
index 12ebaed6..f233dffd 100644
--- a/gns3server/modules/dynamips/adapters/c7200_io_ge_e.py
+++ b/gns3server/modules/dynamips/adapters/c7200_io_ge_e.py
@@ -19,6 +19,7 @@ from .adapter import Adapter
 
 
 class C7200_IO_GE_E(Adapter):
+
     """
     C7200-IO-GE-E GigabitEthernet Input/Ouput controller.
     """
diff --git a/gns3server/modules/dynamips/adapters/leopard_2fe.py b/gns3server/modules/dynamips/adapters/leopard_2fe.py
index 0afa95c0..db6ad9c2 100644
--- a/gns3server/modules/dynamips/adapters/leopard_2fe.py
+++ b/gns3server/modules/dynamips/adapters/leopard_2fe.py
@@ -19,6 +19,7 @@ from .adapter import Adapter
 
 
 class Leopard_2FE(Adapter):
+
     """
     Integrated 2 port FastEthernet adapter for c3660 router.
     """
diff --git a/gns3server/modules/dynamips/adapters/nm_16esw.py b/gns3server/modules/dynamips/adapters/nm_16esw.py
index fc3755cd..31e74565 100644
--- a/gns3server/modules/dynamips/adapters/nm_16esw.py
+++ b/gns3server/modules/dynamips/adapters/nm_16esw.py
@@ -19,6 +19,7 @@ from .adapter import Adapter
 
 
 class NM_16ESW(Adapter):
+
     """
     NM-16ESW FastEthernet network module.
     """
diff --git a/gns3server/modules/dynamips/adapters/nm_1e.py b/gns3server/modules/dynamips/adapters/nm_1e.py
index ac200247..59ac5569 100644
--- a/gns3server/modules/dynamips/adapters/nm_1e.py
+++ b/gns3server/modules/dynamips/adapters/nm_1e.py
@@ -19,6 +19,7 @@ from .adapter import Adapter
 
 
 class NM_1E(Adapter):
+
     """
     NM-1E Ethernet network module.
     """
diff --git a/gns3server/modules/dynamips/adapters/nm_1fe_tx.py b/gns3server/modules/dynamips/adapters/nm_1fe_tx.py
index 9723f703..26568306 100644
--- a/gns3server/modules/dynamips/adapters/nm_1fe_tx.py
+++ b/gns3server/modules/dynamips/adapters/nm_1fe_tx.py
@@ -19,6 +19,7 @@ from .adapter import Adapter
 
 
 class NM_1FE_TX(Adapter):
+
     """
     NM-1FE-TX FastEthernet network module.
     """
diff --git a/gns3server/modules/dynamips/adapters/nm_4e.py b/gns3server/modules/dynamips/adapters/nm_4e.py
index ae6a51ed..086b04ee 100644
--- a/gns3server/modules/dynamips/adapters/nm_4e.py
+++ b/gns3server/modules/dynamips/adapters/nm_4e.py
@@ -19,6 +19,7 @@ from .adapter import Adapter
 
 
 class NM_4E(Adapter):
+
     """
     NM-4E Ethernet network module.
     """
diff --git a/gns3server/modules/dynamips/adapters/nm_4t.py b/gns3server/modules/dynamips/adapters/nm_4t.py
index df6db299..77c3ecc8 100644
--- a/gns3server/modules/dynamips/adapters/nm_4t.py
+++ b/gns3server/modules/dynamips/adapters/nm_4t.py
@@ -19,6 +19,7 @@ from .adapter import Adapter
 
 
 class NM_4T(Adapter):
+
     """
     NM-4T Serial network module.
     """
diff --git a/gns3server/modules/dynamips/adapters/pa_2fe_tx.py b/gns3server/modules/dynamips/adapters/pa_2fe_tx.py
index 8589ff2e..09b677f3 100644
--- a/gns3server/modules/dynamips/adapters/pa_2fe_tx.py
+++ b/gns3server/modules/dynamips/adapters/pa_2fe_tx.py
@@ -19,6 +19,7 @@ from .adapter import Adapter
 
 
 class PA_2FE_TX(Adapter):
+
     """
     PA-2FE-TX FastEthernet port adapter.
     """
diff --git a/gns3server/modules/dynamips/adapters/pa_4e.py b/gns3server/modules/dynamips/adapters/pa_4e.py
index 32564992..d5981860 100644
--- a/gns3server/modules/dynamips/adapters/pa_4e.py
+++ b/gns3server/modules/dynamips/adapters/pa_4e.py
@@ -19,6 +19,7 @@ from .adapter import Adapter
 
 
 class PA_4E(Adapter):
+
     """
     PA-4E Ethernet port adapter.
     """
diff --git a/gns3server/modules/dynamips/adapters/pa_4t.py b/gns3server/modules/dynamips/adapters/pa_4t.py
index 6a098a24..5a1393bc 100644
--- a/gns3server/modules/dynamips/adapters/pa_4t.py
+++ b/gns3server/modules/dynamips/adapters/pa_4t.py
@@ -19,6 +19,7 @@ from .adapter import Adapter
 
 
 class PA_4T(Adapter):
+
     """
     PA-4T+ Serial port adapter.
     """
diff --git a/gns3server/modules/dynamips/adapters/pa_8e.py b/gns3server/modules/dynamips/adapters/pa_8e.py
index a6b5075f..96684055 100644
--- a/gns3server/modules/dynamips/adapters/pa_8e.py
+++ b/gns3server/modules/dynamips/adapters/pa_8e.py
@@ -19,6 +19,7 @@ from .adapter import Adapter
 
 
 class PA_8E(Adapter):
+
     """
     PA-8E Ethernet port adapter.
     """
diff --git a/gns3server/modules/dynamips/adapters/pa_8t.py b/gns3server/modules/dynamips/adapters/pa_8t.py
index 600a5c29..723e026f 100644
--- a/gns3server/modules/dynamips/adapters/pa_8t.py
+++ b/gns3server/modules/dynamips/adapters/pa_8t.py
@@ -19,6 +19,7 @@ from .adapter import Adapter
 
 
 class PA_8T(Adapter):
+
     """
     PA-8T Serial port adapter.
     """
diff --git a/gns3server/modules/dynamips/adapters/pa_a1.py b/gns3server/modules/dynamips/adapters/pa_a1.py
index 21d51f15..469d9ce4 100644
--- a/gns3server/modules/dynamips/adapters/pa_a1.py
+++ b/gns3server/modules/dynamips/adapters/pa_a1.py
@@ -19,6 +19,7 @@ from .adapter import Adapter
 
 
 class PA_A1(Adapter):
+
     """
     PA-A1 ATM port adapter.
     """
diff --git a/gns3server/modules/dynamips/adapters/pa_fe_tx.py b/gns3server/modules/dynamips/adapters/pa_fe_tx.py
index 70ce8489..6434d2b4 100644
--- a/gns3server/modules/dynamips/adapters/pa_fe_tx.py
+++ b/gns3server/modules/dynamips/adapters/pa_fe_tx.py
@@ -19,6 +19,7 @@ from .adapter import Adapter
 
 
 class PA_FE_TX(Adapter):
+
     """
     PA-FE-TX FastEthernet port adapter.
     """
diff --git a/gns3server/modules/dynamips/adapters/pa_ge.py b/gns3server/modules/dynamips/adapters/pa_ge.py
index f0287408..e466d905 100644
--- a/gns3server/modules/dynamips/adapters/pa_ge.py
+++ b/gns3server/modules/dynamips/adapters/pa_ge.py
@@ -19,6 +19,7 @@ from .adapter import Adapter
 
 
 class PA_GE(Adapter):
+
     """
     PA-GE GigabitEthernet port adapter.
     """
diff --git a/gns3server/modules/dynamips/adapters/pa_pos_oc3.py b/gns3server/modules/dynamips/adapters/pa_pos_oc3.py
index b120de97..de0bc5d1 100644
--- a/gns3server/modules/dynamips/adapters/pa_pos_oc3.py
+++ b/gns3server/modules/dynamips/adapters/pa_pos_oc3.py
@@ -19,6 +19,7 @@ from .adapter import Adapter
 
 
 class PA_POS_OC3(Adapter):
+
     """
     PA-POS-OC3 port adapter.
     """
diff --git a/gns3server/modules/dynamips/adapters/wic_1enet.py b/gns3server/modules/dynamips/adapters/wic_1enet.py
index dac79b6b..2d5e62b7 100644
--- a/gns3server/modules/dynamips/adapters/wic_1enet.py
+++ b/gns3server/modules/dynamips/adapters/wic_1enet.py
@@ -17,6 +17,7 @@
 
 
 class WIC_1ENET(object):
+
     """
     WIC-1ENET Ethernet
     """
diff --git a/gns3server/modules/dynamips/adapters/wic_1t.py b/gns3server/modules/dynamips/adapters/wic_1t.py
index 0f7cb3ad..2067246d 100644
--- a/gns3server/modules/dynamips/adapters/wic_1t.py
+++ b/gns3server/modules/dynamips/adapters/wic_1t.py
@@ -17,6 +17,7 @@
 
 
 class WIC_1T(object):
+
     """
     WIC-1T Serial
     """
diff --git a/gns3server/modules/dynamips/adapters/wic_2t.py b/gns3server/modules/dynamips/adapters/wic_2t.py
index 2bf2d565..b5af954e 100644
--- a/gns3server/modules/dynamips/adapters/wic_2t.py
+++ b/gns3server/modules/dynamips/adapters/wic_2t.py
@@ -17,6 +17,7 @@
 
 
 class WIC_2T(object):
+
     """
     WIC-2T Serial
     """
diff --git a/gns3server/modules/dynamips/dynamips_hypervisor.py b/gns3server/modules/dynamips/dynamips_hypervisor.py
index 01a92248..071019f5 100644
--- a/gns3server/modules/dynamips/dynamips_hypervisor.py
+++ b/gns3server/modules/dynamips/dynamips_hypervisor.py
@@ -32,6 +32,7 @@ log = logging.getLogger(__name__)
 
 
 class DynamipsHypervisor:
+
     """
     Creates a new connection to a Dynamips server (also called hypervisor)
 
diff --git a/gns3server/modules/dynamips/dynamips_vm.py b/gns3server/modules/dynamips/dynamips_vm.py
index b73b1dbf..bcdd5636 100644
--- a/gns3server/modules/dynamips/dynamips_vm.py
+++ b/gns3server/modules/dynamips/dynamips_vm.py
@@ -38,6 +38,7 @@ PLATFORMS = {'c1700': C1700,
 
 
 class DynamipsVM:
+
     """
     Factory to create an Router object based on the correct platform.
     """
diff --git a/gns3server/modules/dynamips/hypervisor.py b/gns3server/modules/dynamips/hypervisor.py
index 57afb37a..778c490b 100644
--- a/gns3server/modules/dynamips/hypervisor.py
+++ b/gns3server/modules/dynamips/hypervisor.py
@@ -32,6 +32,7 @@ log = logging.getLogger(__name__)
 
 
 class Hypervisor(DynamipsHypervisor):
+
     """
     Hypervisor.
 
diff --git a/gns3server/modules/dynamips/nios/nio.py b/gns3server/modules/dynamips/nios/nio.py
index 256ddc1b..f829e4ed 100644
--- a/gns3server/modules/dynamips/nios/nio.py
+++ b/gns3server/modules/dynamips/nios/nio.py
@@ -28,6 +28,7 @@ log = logging.getLogger(__name__)
 
 
 class NIO:
+
     """
     Base NIO class
 
diff --git a/gns3server/modules/dynamips/nios/nio_fifo.py b/gns3server/modules/dynamips/nios/nio_fifo.py
index 60c9aa3f..55b91b8d 100644
--- a/gns3server/modules/dynamips/nios/nio_fifo.py
+++ b/gns3server/modules/dynamips/nios/nio_fifo.py
@@ -27,6 +27,7 @@ log = logging.getLogger(__name__)
 
 
 class NIOFIFO(NIO):
+
     """
     Dynamips FIFO NIO.
 
diff --git a/gns3server/modules/dynamips/nios/nio_generic_ethernet.py b/gns3server/modules/dynamips/nios/nio_generic_ethernet.py
index fc0ab006..af631654 100644
--- a/gns3server/modules/dynamips/nios/nio_generic_ethernet.py
+++ b/gns3server/modules/dynamips/nios/nio_generic_ethernet.py
@@ -27,6 +27,7 @@ log = logging.getLogger(__name__)
 
 
 class NIOGenericEthernet(NIO):
+
     """
     Dynamips generic Ethernet NIO.
 
@@ -46,8 +47,6 @@ class NIOGenericEthernet(NIO):
         self._name = 'nio_gen_eth' + str(self._id)
         self._ethernet_device = ethernet_device
 
-
-
     @classmethod
     def reset(cls):
         """
diff --git a/gns3server/modules/dynamips/nios/nio_linux_ethernet.py b/gns3server/modules/dynamips/nios/nio_linux_ethernet.py
index 513bc12a..1d3b280f 100644
--- a/gns3server/modules/dynamips/nios/nio_linux_ethernet.py
+++ b/gns3server/modules/dynamips/nios/nio_linux_ethernet.py
@@ -27,6 +27,7 @@ log = logging.getLogger(__name__)
 
 
 class NIOLinuxEthernet(NIO):
+
     """
     Dynamips Linux Ethernet NIO.
 
diff --git a/gns3server/modules/dynamips/nios/nio_mcast.py b/gns3server/modules/dynamips/nios/nio_mcast.py
index cf03aaab..ed6ea896 100644
--- a/gns3server/modules/dynamips/nios/nio_mcast.py
+++ b/gns3server/modules/dynamips/nios/nio_mcast.py
@@ -27,6 +27,7 @@ log = logging.getLogger(__name__)
 
 
 class NIOMcast(NIO):
+
     """
     Dynamips Linux Ethernet NIO.
 
diff --git a/gns3server/modules/dynamips/nios/nio_null.py b/gns3server/modules/dynamips/nios/nio_null.py
index df666fb8..b2c0e65f 100644
--- a/gns3server/modules/dynamips/nios/nio_null.py
+++ b/gns3server/modules/dynamips/nios/nio_null.py
@@ -27,6 +27,7 @@ log = logging.getLogger(__name__)
 
 
 class NIONull(NIO):
+
     """
     Dynamips NULL NIO.
 
diff --git a/gns3server/modules/dynamips/nios/nio_tap.py b/gns3server/modules/dynamips/nios/nio_tap.py
index 926e9b0b..e077161e 100644
--- a/gns3server/modules/dynamips/nios/nio_tap.py
+++ b/gns3server/modules/dynamips/nios/nio_tap.py
@@ -27,6 +27,7 @@ log = logging.getLogger(__name__)
 
 
 class NIOTAP(NIO):
+
     """
     Dynamips TAP NIO.
 
diff --git a/gns3server/modules/dynamips/nios/nio_udp.py b/gns3server/modules/dynamips/nios/nio_udp.py
index 999fdf9a..f1b0ca18 100644
--- a/gns3server/modules/dynamips/nios/nio_udp.py
+++ b/gns3server/modules/dynamips/nios/nio_udp.py
@@ -27,6 +27,7 @@ log = logging.getLogger(__name__)
 
 
 class NIOUDP(NIO):
+
     """
     Dynamips UDP NIO.
 
diff --git a/gns3server/modules/dynamips/nios/nio_udp_auto.py b/gns3server/modules/dynamips/nios/nio_udp_auto.py
index 1caaaea0..40eb6768 100644
--- a/gns3server/modules/dynamips/nios/nio_udp_auto.py
+++ b/gns3server/modules/dynamips/nios/nio_udp_auto.py
@@ -27,6 +27,7 @@ log = logging.getLogger(__name__)
 
 
 class NIOUDPAuto(NIO):
+
     """
     Dynamips auto UDP NIO.
 
diff --git a/gns3server/modules/dynamips/nios/nio_unix.py b/gns3server/modules/dynamips/nios/nio_unix.py
index 234fd65b..d37c83ad 100644
--- a/gns3server/modules/dynamips/nios/nio_unix.py
+++ b/gns3server/modules/dynamips/nios/nio_unix.py
@@ -27,6 +27,7 @@ log = logging.getLogger(__name__)
 
 
 class NIOUNIX(NIO):
+
     """
     Dynamips UNIX NIO.
 
diff --git a/gns3server/modules/dynamips/nios/nio_vde.py b/gns3server/modules/dynamips/nios/nio_vde.py
index 6b00cf2f..04b9fc07 100644
--- a/gns3server/modules/dynamips/nios/nio_vde.py
+++ b/gns3server/modules/dynamips/nios/nio_vde.py
@@ -26,6 +26,7 @@ log = logging.getLogger(__name__)
 
 
 class NIOVDE(NIO):
+
     """
     Dynamips VDE NIO.
 
diff --git a/gns3server/modules/dynamips/nodes/c1700.py b/gns3server/modules/dynamips/nodes/c1700.py
index faee65cd..9ff6e51b 100644
--- a/gns3server/modules/dynamips/nodes/c1700.py
+++ b/gns3server/modules/dynamips/nodes/c1700.py
@@ -30,6 +30,7 @@ log = logging.getLogger(__name__)
 
 
 class C1700(Router):
+
     """
     Dynamips c1700 router.
 
diff --git a/gns3server/modules/dynamips/nodes/c2600.py b/gns3server/modules/dynamips/nodes/c2600.py
index e3972253..497a5d56 100644
--- a/gns3server/modules/dynamips/nodes/c2600.py
+++ b/gns3server/modules/dynamips/nodes/c2600.py
@@ -32,6 +32,7 @@ log = logging.getLogger(__name__)
 
 
 class C2600(Router):
+
     """
     Dynamips c2600 router.
 
diff --git a/gns3server/modules/dynamips/nodes/c2691.py b/gns3server/modules/dynamips/nodes/c2691.py
index 273b33de..d40efd2c 100644
--- a/gns3server/modules/dynamips/nodes/c2691.py
+++ b/gns3server/modules/dynamips/nodes/c2691.py
@@ -29,6 +29,7 @@ log = logging.getLogger(__name__)
 
 
 class C2691(Router):
+
     """
     Dynamips c2691 router.
 
diff --git a/gns3server/modules/dynamips/nodes/c3600.py b/gns3server/modules/dynamips/nodes/c3600.py
index fe11b48d..415d9a74 100644
--- a/gns3server/modules/dynamips/nodes/c3600.py
+++ b/gns3server/modules/dynamips/nodes/c3600.py
@@ -29,6 +29,7 @@ log = logging.getLogger(__name__)
 
 
 class C3600(Router):
+
     """
     Dynamips c3600 router.
 
diff --git a/gns3server/modules/dynamips/nodes/c3725.py b/gns3server/modules/dynamips/nodes/c3725.py
index 6cb4213c..0d0ce36d 100644
--- a/gns3server/modules/dynamips/nodes/c3725.py
+++ b/gns3server/modules/dynamips/nodes/c3725.py
@@ -29,6 +29,7 @@ log = logging.getLogger(__name__)
 
 
 class C3725(Router):
+
     """
     Dynamips c3725 router.
 
diff --git a/gns3server/modules/dynamips/nodes/c3745.py b/gns3server/modules/dynamips/nodes/c3745.py
index 28acfe99..d94b9883 100644
--- a/gns3server/modules/dynamips/nodes/c3745.py
+++ b/gns3server/modules/dynamips/nodes/c3745.py
@@ -29,6 +29,7 @@ log = logging.getLogger(__name__)
 
 
 class C3745(Router):
+
     """
     Dynamips c3745 router.
 
diff --git a/gns3server/modules/dynamips/nodes/c7200.py b/gns3server/modules/dynamips/nodes/c7200.py
index 4d69e825..ca70ecb7 100644
--- a/gns3server/modules/dynamips/nodes/c7200.py
+++ b/gns3server/modules/dynamips/nodes/c7200.py
@@ -32,6 +32,7 @@ log = logging.getLogger(__name__)
 
 
 class C7200(Router):
+
     """
     Dynamips c7200 router (model is 7206).
 
diff --git a/gns3server/modules/dynamips/nodes/router.py b/gns3server/modules/dynamips/nodes/router.py
index e8c05618..bfff9d27 100644
--- a/gns3server/modules/dynamips/nodes/router.py
+++ b/gns3server/modules/dynamips/nodes/router.py
@@ -145,14 +145,14 @@ class Router(BaseVM):
                        "system_id": self._system_id}
 
         # FIXME: add default slots/wics
-        #slot_id = 0
-        #for slot in self._slots:
+        # slot_id = 0
+        # for slot in self._slots:
         #    if slot:
         #        slot = str(slot)
         #    router_defaults["slot" + str(slot_id)] = slot
         #    slot_id += 1
 
-        #if self._slots[0] and self._slots[0].wics:
+        # if self._slots[0] and self._slots[0].wics:
         #    for wic_slot_id in range(0, len(self._slots[0].wics)):
         #        router_defaults["wic" + str(wic_slot_id)] = None
 
@@ -1014,8 +1014,8 @@ class Router(BaseVM):
 
         # Only c7200, c3600 and c3745 (NM-4T only) support new adapter while running
         if is_running and not ((self._platform == 'c7200' and not str(adapter).startswith('C7200'))
-                                and not (self._platform == 'c3600' and self.chassis == '3660')
-                                and not (self._platform == 'c3745' and adapter == 'NM-4T')):
+                               and not (self._platform == 'c3600' and self.chassis == '3660')
+                               and not (self._platform == 'c3745' and adapter == 'NM-4T')):
             raise DynamipsError('Adapter {adapter} cannot be added while router "{name}" is running'.format(adapter=adapter,
                                                                                                             name=self._name))
 
@@ -1060,8 +1060,8 @@ class Router(BaseVM):
 
         # Only c7200, c3600 and c3745 (NM-4T only) support to remove adapter while running
         if is_running and not ((self._platform == 'c7200' and not str(adapter).startswith('C7200'))
-                                and not (self._platform == 'c3600' and self.chassis == '3660')
-                                and not (self._platform == 'c3745' and adapter == 'NM-4T')):
+                               and not (self._platform == 'c3600' and self.chassis == '3660')
+                               and not (self._platform == 'c3745' and adapter == 'NM-4T')):
             raise DynamipsError('Adapter {adapter} cannot be removed while router "{name}" is running'.format(adapter=adapter,
                                                                                                               name=self._name))
 
@@ -1181,7 +1181,7 @@ class Router(BaseVM):
             adapter = self._slots[slot_id]
         except IndexError:
             raise DynamipsError('Slot {slot_id} does not exist on router "{name}"'.format(name=self._name,
-                                                                                        slot_id=slot_id))
+                                                                                          slot_id=slot_id))
         if not adapter.port_exists(port_id):
             raise DynamipsError("Port {port_id} does not exist in adapter {adapter}".format(adapter=adapter,
                                                                                             port_id=port_id))
@@ -1246,13 +1246,14 @@ class Router(BaseVM):
         is_running = yield from self.is_running()
         if is_running:  # running router
             yield from self._hypervisor.send('vm slot_enable_nio "{name}" {slot_id} {port_id}'.format(name=self._name,
-                                                                                                     slot_id=slot_id,
-                                                                                                     port_id=port_id))
+                                                                                                      slot_id=slot_id,
+                                                                                                      port_id=port_id))
 
             log.info('Router "{name}" [{id}]: NIO enabled on port {slot_id}/{port_id}'.format(name=self._name,
                                                                                               id=self._id,
                                                                                               slot_id=slot_id,
                                                                                               port_id=port_id))
+
     @asyncio.coroutine
     def slot_disable_nio(self, slot_id, port_id):
         """
@@ -1301,11 +1302,10 @@ class Router(BaseVM):
             raise DynamipsError("Port {port_id} has already a filter applied on {adapter}".format(adapter=adapter,
                                                                                                   port_id=port_id))
 
-
         # FIXME: capture
-        #try:
+        # try:
         #    os.makedirs(os.path.dirname(output_file), exist_ok=True)
-        #except OSError as e:
+        # except OSError as e:
         #    raise DynamipsError("Could not create captures directory {}".format(e))
 
         yield from nio.bind_filter("both", "capture")
@@ -1316,6 +1316,7 @@ class Router(BaseVM):
                                                                                                       nio_name=nio.name,
                                                                                                       slot_id=slot_id,
                                                                                                       port_id=port_id))
+
     @asyncio.coroutine
     def stop_capture(self, slot_id, port_id):
         """
diff --git a/tests/modules/dynamips/test_dynamips_router.py b/tests/modules/dynamips/test_dynamips_router.py
index c7fbb236..174fe7aa 100644
--- a/tests/modules/dynamips/test_dynamips_router.py
+++ b/tests/modules/dynamips/test_dynamips_router.py
@@ -44,7 +44,7 @@ def test_router(project, manager):
 
 def test_router_invalid_dynamips_path(project, manager, loop):
     with patch("gns3server.config.Config.get_section_config", return_value={"dynamips_path": "/bin/test_fake"}):
-         with pytest.raises(DynamipsError):
+        with pytest.raises(DynamipsError):
             router = Router("test", "00010203-0405-0607-0809-0a0b0c0d0e0e", project, manager)
             loop.run_until_complete(asyncio.async(router.create()))
             assert router.name == "test"
diff --git a/tox.ini b/tox.ini
index 53eaab0b..155cefab 100644
--- a/tox.ini
+++ b/tox.ini
@@ -6,7 +6,7 @@ commands = python setup.py test
 deps = -rdev-requirements.txt
 
 [pep8]
-ignore = E501
+ignore = E501,E402
 
 [pytest]
 norecursedirs = old_tests .tox