Hi all,
I am trying to create a simple component (python) that get the routes from
the connected switch. When I am trying to run the component it gives me
Import error
./nox_core -i ptcp:7788 -v pywaqas
00001|nox|INFO:Starting nox_core (/home/nox/src/.libs/lt-nox_core)
00002|pyrt|DBG:Loading a component description file
'nox/coreapps/simple_c_py_app/meta.xml'.
00003|pyrt|DBG:Loading a component description file
'nox/coreapps/switch/meta.xml'.
00004|pyrt|DBG:Loading a component description file
'nox/coreapps/testharness/meta.xml'.
00005|pyrt|DBG:Loading a component description file
'nox/coreapps/simple_c_app/meta.xml'.
00006|pyrt|DBG:Loading a component description file
'nox/coreapps/pyrt/meta.xml'.
00007|pyrt|DBG:Loading a component description file
'nox/coreapps/hub/meta.xml'.
00008|pyrt|DBG:Loading a component description file
'nox/coreapps/coretests/meta.xml'.
00009|pyrt|DBG:Loading a component description file
'nox/coreapps/examples/meta.xml'.
00010|pyrt|DBG:Loading a component description file
'nox/coreapps/examples/t/meta.xml'.
00011|pyrt|DBG:Loading a component description file
'nox/netapps/discovery/meta.xml'.
00012|pyrt|DBG:Loading a component description file
'nox/netapps/switchstats/meta.xml'.
00013|pyrt|DBG:Loading a component description file
'nox/netapps/topology/meta.xml'.
00014|pyrt|DBG:Loading a component description file
'nox/netapps/tests/meta.xml'.
00015|pyrt|DBG:Loading a component description file
'nox/netapps/data/meta.xml'.
00016|pyrt|DBG:Loading a component description file
'nox/netapps/storage/meta.xml'.
00017|pyrt|DBG:Loading a component description file
'nox/netapps/storage/t/meta.xml'.
00018|pyrt|DBG:Loading a component description file
'nox/netapps/switch_management/meta.xml'.
00019|pyrt|DBG:Loading a component description file
'nox/netapps/flow_fetcher/meta.xml'.
00020|pyrt|DBG:Loading a component description file
'nox/netapps/routing/meta.xml'.
00021|pyrt|DBG:Loading a component description file
'nox/netapps/bindings_storage/meta.xml'.
00022|pyrt|DBG:Loading a component description file
'nox/netapps/bindings_storage/t/meta.xml'.
00023|pyrt|DBG:Loading a component description file
'nox/netapps/authenticator/meta.xml'.
00024|pyrt|DBG:Loading a component description file
'nox/netapps/user_event_log/meta.xml'.
00025|pyrt|DBG:Loading a component description file
'nox/webapps/webserver/meta.xml'.
00026|pyrt|DBG:Loading a component description file
'nox/webapps/webservice/meta.xml'.
00027|pyrt|DBG:Loading a component description file
'nox/webapps/miscws/meta.xml'.
00028|pycomponent|DBG:Importing Python module nox.coreapps.examples.pywaqas
00029|nox|DBG:Application installation report:
00030|nox|DBG:built-in event dispatcher:
Current state: INSTALLED
Required state: INSTALLED
Dependencies:
00031|nox|DBG:pywaqas:
Current state: ERROR
Required state: INSTALLED
Dependencies: 'python' OK, 'python' OK
Error:
cannot import a Python module
'nox.coreapps.examples.pywaqas':
Traceback (most recent call last):
File "./nox/coreapps/examples/pywaqas.py", line 7, in
<module>
from nox.netapps.authenticator.pyflowutil import
Flow_in_event
File "./nox/netapps/authenticator/pyflowutil.py", line 7,
in <module>
import _pyflowutil
ImportError: ./nox/netapps/authenticator/_pyflowutil.so:
undefined symbol: vigil::Flow_expr::set_pred(unsigned int,
vigil::Flow_expr::Pred_t, long long)
00032|nox|DBG:built-in DSO deployer:
Current state: INSTALLED
Required state: INSTALLED
Dependencies:
00033|nox|DBG:python:
Current state: INSTALLED
Required state: INSTALLED
Dependencies:
00034|nox|ERR:Cannot change the state of 'pywaqas' to INSTALLED:
'pywaqas' ran into an error:
cannot import a Python module 'nox.coreapps.examples.pywaqas':
Traceback (most recent call last):
File "./nox/coreapps/examples/pywaqas.py", line 7, in <module>
from nox.netapps.authenticator.pyflowutil import Flow_in_event
File "./nox/netapps/authenticator/pyflowutil.py", line 7, in
<module>
import _pyflowutil
ImportError: ./nox/netapps/authenticator/_pyflowutil.so: undefined
symbol: vigil::Flow_expr::set_pred(unsigned int, vigil::Flow_expr::Pred_t,
long long)
but when I initiate the pyrouting module before running the pywaqas
component it runs without any errors.
00036|pycomponent|DBG:Importing Python module
nox.netapps.data.datatypes_impl
00037|pycomponent|DBG:Importing Python module
nox.netapps.data.datacache_impl
00038|pycomponent|DBG:Importing Python module
nox.netapps.user_event_log.pyuser_event_log
00039|pycomponent|DBG:Importing Python module
nox.netapps.discovery.discovery
00040|pycomponent|DBG:Importing Python module nox.netapps.routing.pyrouting
00041|pycomponent|DBG:Importing Python module nox.coreapps.examples.pywaqas
00042|nox|DBG:Application installation report:
00043|nox|DBG:storage-common:
Current state: INSTALLED
Required state: INSTALLED
Dependencies:
00044|nox|DBG:link event:
Current state: INSTALLED
Required state: INSTALLED
Dependencies:
00045|nox|DBG:data_cache:
Current state: INSTALLED
Required state: INSTALLED
Dependencies: 'datatypes' OK
00046|nox|DBG:python:
Current state: INSTALLED
Required state: INSTALLED
Dependencies:
00047|nox|DBG:pydatatypes:
Current state: INSTALLED
Required state: INSTALLED
Dependencies: 'datatypes' OK, 'python' OK
00048|nox|DBG:pyrouting:
Current state: INSTALLED
Required state: INSTALLED
Dependencies: 'routing_module' OK, 'python' OK
00049|nox|DBG:discovery:
Current state: INSTALLED
Required state: INSTALLED
Dependencies: 'link event' OK, 'pybindings_storage' OK,
'pyuser_event_log' OK, 'python' OK
00050|nox|DBG:bindings_storage:
Current state: INSTALLED
Required state: INSTALLED
Dependencies: 'storage-backend' OK, 'datatypes' OK, 'data_cache' OK
00051|nox|DBG:topology:
Current state: INSTALLED
Required state: INSTALLED
Dependencies: 'discovery' OK
00052|nox|DBG:storage-backend:
Current state: INSTALLED
Required state: INSTALLED
Dependencies: 'storage-common' OK
00053|nox|DBG:pyuser_event_log:
Current state: INSTALLED
Required state: INSTALLED
Dependencies: 'user_event_log' OK, 'pydatatypes' OK, 'pydatacache'
OK, 'python' OK
00054|nox|DBG:pywaqas:
Current state: INSTALLED
Required state: INSTALLED
Dependencies: 'python' OK, 'python' OK
00055|nox|DBG:built-in DSO deployer:
Current state: INSTALLED
Required state: INSTALLED
Dependencies:
00056|nox|DBG:nat_enforcer:
Current state: INSTALLED
Required state: INSTALLED
Dependencies: 'flow_util' OK
00057|nox|DBG:pydatacache:
Current state: INSTALLED
Required state: INSTALLED
Dependencies: 'data_cache' OK, 'python' OK
00058|nox|DBG:datatypes:
Current state: INSTALLED
Required state: INSTALLED
Dependencies:
00059|nox|DBG:built-in event dispatcher:
Current state: INSTALLED
Required state: INSTALLED
Dependencies:
Because when we run the sample_routing module we dont have to initiate the
pyrouting module why is it so ?
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