Am trying to execute Jupyter notebook from command line. Am currently using the docker image provided in below link
https://hub.docker.com/r/jupyter/pyspark-notebook
When i try to execute below in command line it fails.
jupyter nbconvert --to notebook --ExecutePreprocessor.kernel_name=PySpark --ExecutePreprocessor.timeout=3600 --execute notebooks/sample-notebook.ipynb
Below is the error message
[NbConvertApp] Converting notebook notebooks/sample-notebook.ipynb to notebook
Traceback (most recent call last):
File "/opt/conda/bin/jupyter-nbconvert", line 11, in <module>
sys.exit(main())
File "/opt/conda/lib/python3.7/site-packages/jupyter_core/application.py", line 270, in launch_instance
return super(JupyterApp, cls).launch_instance(argv=argv, **kwargs)
File "/opt/conda/lib/python3.7/site-packages/traitlets/config/application.py", line 664, in launch_instance
app.start()
File "/opt/conda/lib/python3.7/site-packages/nbconvert/nbconvertapp.py", line 340, in start
self.convert_notebooks()
File "/opt/conda/lib/python3.7/site-packages/nbconvert/nbconvertapp.py", line 510, in convert_notebooks
self.convert_single_notebook(notebook_filename)
File "/opt/conda/lib/python3.7/site-packages/nbconvert/nbconvertapp.py", line 481, in convert_single_notebook
output, resources = self.export_single_notebook(notebook_filename, resources, input_buffer=input_buffer)
File "/opt/conda/lib/python3.7/site-packages/nbconvert/nbconvertapp.py", line 410, in export_single_notebook
output, resources = self.exporter.from_filename(notebook_filename, resources=resources)
File "/opt/conda/lib/python3.7/site-packages/nbconvert/exporters/exporter.py", line 179, in from_filename
return self.from_file(f, resources=resources, **kw)
File "/opt/conda/lib/python3.7/site-packages/nbconvert/exporters/exporter.py", line 197, in from_file
return self.from_notebook_node(nbformat.read(file_stream, as_version=4), resources=resources, **kw)
File "/opt/conda/lib/python3.7/site-packages/nbconvert/exporters/notebook.py", line 32, in from_notebook_node
nb_copy, resources = super(NotebookExporter, self).from_notebook_node(nb, resources, **kw)
File "/opt/conda/lib/python3.7/site-packages/nbconvert/exporters/exporter.py", line 139, in from_notebook_node
nb_copy, resources = self._preprocess(nb_copy, resources)
File "/opt/conda/lib/python3.7/site-packages/nbconvert/exporters/exporter.py", line 316, in _preprocess
nbc, resc = preprocessor(nbc, resc)
File "/opt/conda/lib/python3.7/site-packages/nbconvert/preprocessors/base.py", line 47, in __call__
return self.preprocess(nb, resources)
File "/opt/conda/lib/python3.7/site-packages/nbconvert/preprocessors/execute.py", line 403, in preprocess
with self.setup_preprocessor(nb, resources, km=km):
File "/opt/conda/lib/python3.7/contextlib.py", line 112, in __enter__
return next(self.gen)
File "/opt/conda/lib/python3.7/site-packages/nbconvert/preprocessors/execute.py", line 345, in setup_preprocessor
self.km, self.kc = self.start_new_kernel(**kwargs)
File "/opt/conda/lib/python3.7/site-packages/nbconvert/preprocessors/execute.py", line 291, in start_new_kernel
km.start_kernel(extra_arguments=self.extra_arguments, **kwargs)
File "/opt/conda/lib/python3.7/site-packages/jupyter_client/manager.py", line 301, in start_kernel
kernel_cmd, kw = self.pre_start_kernel(**kw)
File "/opt/conda/lib/python3.7/site-packages/jupyter_client/manager.py", line 254, in pre_start_kernel
kernel_cmd = self.format_kernel_cmd(extra_arguments=extra_arguments)
File "/opt/conda/lib/python3.7/site-packages/jupyter_client/manager.py", line 178, in format_kernel_cmd
cmd = self.kernel_spec.argv + extra_arguments
File "/opt/conda/lib/python3.7/site-packages/jupyter_client/manager.py", line 84, in kernel_spec
self._kernel_spec = self.kernel_spec_manager.get_kernel_spec(self.kernel_name)
File "/opt/conda/lib/python3.7/site-packages/jupyter_client/kernelspec.py", line 235, in get_kernel_spec
raise NoSuchKernel(kernel_name)
jupyter_client.kernelspec.NoSuchKernel: No such kernel named PySpark
Related
I am trying to import .zip Studio Customization file to Odoo Version 15. As we are migrating our Odoo System we want transfer our Studio Customizations from the development Database to the Production Database.I am getting the following Error:
1.
Traceback (most recent call last):
File "/home/secusmart/odoo15-prod/odoo/odoo/tools/cache.py", line 85, in lookup
r = d[key]
File "/home/secusmart/odoo15-prod/odoo/odoo/tools/func.py", line 71, in wrapper
return func(self, *args, **kwargs)
File "/home/secusmart/odoo15-prod/odoo/odoo/tools/lru.py", line 34, in __getitem__
a = self.d[obj]
KeyError: ('ir.model.access', <function IrModelAccess.check at 0x7f330bb4f4c0>, 2, False, 'base.import.module', 'write', True, ('en_US',))
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/home/secusmart/odoo15-prod/odoo/odoo/addons/base/models/ir_http.py", line 237, in _dispatch
result = request.dispatch()
File "/home/secusmart/odoo15-prod/odoo/odoo/http.py", line 688, in dispatch
result = self._call_function(**self.params)
File "/home/secusmart/odoo15-prod/odoo/odoo/http.py", line 360, in _call_function
return checked_call(self.db, *args, **kwargs)
File "/home/secusmart/odoo15-prod/odoo/odoo/service/model.py", line 94, in wrapper
return f(dbname, *args, **kwargs)
File "/home/secusmart/odoo15-prod/odoo/odoo/http.py", line 349, in checked_call
result = self.endpoint(*a, **kw)
File "/home/secusmart/odoo15-prod/odoo/odoo/http.py", line 917, in __call__
return self.method(*args, **kw)
File "/home/secusmart/odoo15-prod/odoo/odoo/http.py", line 536, in response_wrap
response = f(*args, **kw)
File "/home/secusmart/odoo15-prod/odoo/addons/web/controllers/main.py", line 1352, in call_button
action = self._call_kw(model, method, args, kwargs)
File "/home/secusmart/odoo15-prod/odoo/addons/web/controllers/main.py", line 1340, in _call_kw
return call_kw(request.env[model], method, args, kwargs)
File "/home/secusmart/odoo15-prod/odoo/odoo/api.py", line 464, in call_kw
result = _call_kw_multi(method, model, args, kwargs)
File "/home/secusmart/odoo15-prod/odoo/odoo/api.py", line 451, in _call_kw_multi
result = method(recs, *args, **kwargs)
File "/home/secusmart/odoo15-prod/odoo/addons/base_import_module/models/base_import_module.py", line 24, in import_module
self.write({'state': 'done', 'import_message': res[0]})
File "/home/secusmart/odoo15-prod/odoo/odoo/models.py", line 3763, in write
self.check_access_rights('write')
File "/home/secusmart/odoo15-prod/odoo/odoo/models.py", line 3538, in check_access_rights
return self.env['ir.model.access'].check(self._name, operation, raise_exception)
File "<decorator-gen-33>", line 2, in check
File "/home/secusmart/odoo15-prod/odoo/odoo/tools/cache.py", line 90, in lookup
value = d[key] = self.method(*args, **kwargs)
File "/home/secusmart/odoo15-prod/odoo/odoo/addons/base/models/ir_model.py", line 1762, in check
self._cr.execute("""SELECT MAX(CASE WHEN perm_{mode} THEN 1 ELSE 0 END)
File "<decorator-gen-3>", line 2, in execute
File "/home/secusmart/odoo15-prod/odoo/odoo/sql_db.py", line 89, in check
return f(self, *args, **kwargs)
File "/home/secusmart/odoo15-prod/odoo/odoo/sql_db.py", line 310, in execute
res = self._obj.execute(query, params)
Exception
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/home/secusmart/odoo15-prod/odoo/odoo/http.py", line 644, in _handle_exception
return super(JsonRequest, self)._handle_exception(exception)
File "/home/secusmart/odoo15-prod/odoo/odoo/http.py", line 302, in _handle_exception
raise exception.with_traceback(None) from new_cause
psycopg2.errors.InFailedSqlTransaction: current transaction is aborted, commands ignored until end of transaction block
I fixed the first error by performing the import as superuser
Now I got the following Error:
2.
Traceback (most recent call last):
File "/home/secusmart/odoo15-prod/odoo/odoo/tools/cache.py", line 85, in lookup
r = d[key]
File "/home/secusmart/odoo15-prod/odoo/odoo/tools/func.py", line 71, in wrapper
return func(self, *args, **kwargs)
File "/home/secusmart/odoo15-prod/odoo/odoo/tools/lru.py", line 34, in __getitem__
a = self.d[obj]
KeyError: ('res.lang', <function Lang.get_installed at 0x7f330ab8b4c0>)
You can refer to this answer: Is it possible to import Odoo15 Studio .zip file to Odoo16?
As a small recap, basically you should use the migration tools offered by odoo. You have an enterprise subscription and are using a version of Odoo that is still supported. So migrating your database by Odoo employees should already be possible - and free.
I am trying to install Airflow 2.0.1 with ansible on CentOS8 machine. Python version 3.8.1. I made pip 20.2.4 as suggested in Airflow docs.
I am using postgresql and airflow db check is successful. But the db init task gives the following error. I tried airflow db init manually but the result was the same:
ERROR - Failed to add operation for GET /api/v1/connections
Traceback (most recent call last):
File "/opt/airflow/lib/python3.8/site-packages/connexion/apis/abstract.py", line 209, in add_paths
self.add_operation(path, method)
File "/opt/airflow/lib/python3.8/site-packages/connexion/apis/abstract.py", line 162, in add_operation
operation = make_operation(
File "/opt/airflow/lib/python3.8/site-packages/connexion/operations/__init__.py", line 8, in make_operation
return spec.operation_cls.from_spec(spec, *args, **kwargs)
File "/opt/airflow/lib/python3.8/site-packages/connexion/operations/openapi.py", line 128, in from_spec
return cls(
File "/opt/airflow/lib/python3.8/site-packages/connexion/operations/openapi.py", line 75, in __init__
super(OpenAPIOperation, self).__init__(
File "/opt/airflow/lib/python3.8/site-packages/connexion/operations/abstract.py", line 96, in __init__
self._resolution = resolver.resolve(self)
File "/opt/airflow/lib/python3.8/site-packages/connexion/resolver.py", line 40, in resolve
return Resolution(self.resolve_function_from_operation_id(operation_id), operation_id)
File "/opt/airflow/lib/python3.8/site-packages/connexion/resolver.py", line 66, in resolve_function_from_operation_id
raise ResolverError(str(e), sys.exc_info())
connexion.exceptions.ResolverError: <ResolverError: columns>
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/opt/airflow/bin/airflow", line 8, in <module>
sys.exit(main())
File "/opt/airflow/lib/python3.8/site-packages/airflow/__main__.py", line 40, in main
args.func(args)
File "/opt/airflow/lib/python3.8/site-packages/airflow/cli/cli_parser.py", line 48, in command
return func(*args, **kwargs)
File "/opt/airflow/lib/python3.8/site-packages/airflow/cli/commands/db_command.py", line 31, in initdb
db.initdb()
File "/opt/airflow/lib/python3.8/site-packages/airflow/utils/db.py", line 549, in initdb
upgradedb()
File "/opt/airflow/lib/python3.8/site-packages/airflow/utils/db.py", line 684, in upgradedb
command.upgrade(config, 'heads')
File "/opt/airflow/lib/python3.8/site-packages/alembic/command.py", line 294, in upgrade
script.run_env()
File "/opt/airflow/lib/python3.8/site-packages/alembic/script/base.py", line 490, in run_env
util.load_python_file(self.dir, "env.py")
File "/opt/airflow/lib/python3.8/site-packages/alembic/util/pyfiles.py", line 97, in load_python_file
module = load_module_py(module_id, path)
File "/opt/airflow/lib/python3.8/site-packages/alembic/util/compat.py", line 182, in load_module_py
spec.loader.exec_module(module)
File "<frozen importlib._bootstrap_external>", line 783, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "/opt/airflow/lib/python3.8/site-packages/airflow/migrations/env.py", line 108, in <module>
run_migrations_online()
File "/opt/airflow/lib/python3.8/site-packages/airflow/migrations/env.py", line 102, in run_migrations_online
context.run_migrations()
File "<string>", line 8, in run_migrations
File "/opt/airflow/lib/python3.8/site-packages/alembic/runtime/environment.py", line 813, in run_migrations
self.get_context().run_migrations(**kw)
File "/opt/airflow/lib/python3.8/site-packages/alembic/runtime/migration.py", line 561, in run_migrations
step.migration_fn(**kw)
File "/opt/airflow/lib/python3.8/site-packages/airflow/migrations/versions/2c6edca13270_resource_based_permissions.py", line 314, in upgrade
remap_permissions()
File "/opt/airflow/lib/python3.8/site-packages/airflow/migrations/versions/2c6edca13270_resource_based_permissions.py", line 289, in remap_permissions
appbuilder = create_app(config={'FAB_UPDATE_PERMS': False}).appbuilder
File "/opt/airflow/lib/python3.8/site-packages/airflow/www/app.py", line 120, in create_app
init_api_connexion(flask_app)
File "/opt/airflow/lib/python3.8/site-packages/airflow/www/extensions/init_views.py", line 171, in init_api_connexion
api_bp = connexion_app.add_api(
File "/opt/airflow/lib/python3.8/site-packages/connexion/apps/flask_app.py", line 57, in add_api
api = super(FlaskApp, self).add_api(specification, **kwargs)
File "/opt/airflow/lib/python3.8/site-packages/connexion/apps/abstract.py", line 144, in add_api
api = self.api_cls(specification,
File "/opt/airflow/lib/python3.8/site-packages/connexion/apis/abstract.py", line 111, in __init__
self.add_paths()
File "/opt/airflow/lib/python3.8/site-packages/connexion/apis/abstract.py", line 216, in add_paths
self._handle_add_operation_error(path, method, err.exc_info)
File "/opt/airflow/lib/python3.8/site-packages/connexion/apis/abstract.py", line 231, in _handle_add_operation_error
raise value.with_traceback(traceback)
File "/opt/airflow/lib/python3.8/site-packages/connexion/resolver.py", line 61, in resolve_function_from_operation_id
return self.function_resolver(operation_id)
File "/opt/airflow/lib/python3.8/site-packages/connexion/utils.py", line 111, in get_function_from_name
module = importlib.import_module(module_name)
File "/usr/local/lib/python3.8/importlib/__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
File "<frozen importlib._bootstrap>", line 991, in _find_and_load
File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 783, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "/opt/airflow/lib/python3.8/site-packages/airflow/api_connexion/endpoints/connection_endpoint.py", line 26, in <module>
from airflow.api_connexion.schemas.connection_schema import (
File "/opt/airflow/lib/python3.8/site-packages/airflow/api_connexion/schemas/connection_schema.py", line 42, in <module>
class ConnectionSchema(ConnectionCollectionItemSchema): # pylint: disable=too-many-ancestors
File "/opt/airflow/lib/python3.8/site-packages/marshmallow/schema.py", line 121, in __new__
klass._declared_fields = mcs.get_declared_fields(
File "/opt/airflow/lib/python3.8/site-packages/marshmallow_sqlalchemy/schema/sqlalchemy_schema.py", line 94, in get_declared_fields
fields.update(mcs.get_auto_fields(fields, converter, opts, dict_cls))
File "/opt/airflow/lib/python3.8/site-packages/marshmallow_sqlalchemy/schema/sqlalchemy_schema.py", line 104, in get_auto_fields
{
File "/opt/airflow/lib/python3.8/site-packages/marshmallow_sqlalchemy/schema/sqlalchemy_schema.py", line 105, in <dictcomp>
field_name: field.create_field(
File "/opt/airflow/lib/python3.8/site-packages/marshmallow_sqlalchemy/schema/sqlalchemy_schema.py", line 28, in create_field
return converter.field_for(model, column_name, **self.field_kwargs)
File "/opt/airflow/lib/python3.8/site-packages/marshmallow_sqlalchemy/convert.py", line 171, in field_for
return self.property2field(prop, **kwargs)
File "/opt/airflow/lib/python3.8/site-packages/marshmallow_sqlalchemy/convert.py", line 146, in property2field
field_class = field_class or self._get_field_class_for_property(prop)
File "/opt/airflow/lib/python3.8/site-packages/marshmallow_sqlalchemy/convert.py", line 210, in _get_field_class_for_property
column = prop.columns[0]
File "/opt/airflow/lib/python3.8/site-packages/sqlalchemy/util/langhelpers.py", line 1220, in __getattr__
return self._fallback_getattr(key)
File "/opt/airflow/lib/python3.8/site-packages/sqlalchemy/util/langhelpers.py", line 1194, in _fallback_getattr
raise AttributeError(key)
AttributeError: columns
I'm having the same issue, temp fix was to use sqlalchemy < 1.4. Maybe that works for you.
What Worked for me is setting AIRFLOW_HOME and AIRFLOW__CORE__SQL_ALCHEMY_CONN and pip install SQLAlchemy==1.3.24
For me and Airflow 2.3.1 upgrading marshmallow-sqlalchemy helped.
pip install -U marshmallow-sqlalchemy
I set the AIRFLOW_HOME and AIRFLOW__CORE__SQL_ALCHEMY_CONN environment before run airflow db init.
Playbook version
environment:
AIRFLOW_HOME: "{{ airflow_app_home }}"
AIRFLOW__CORE__SQL_ALCHEMY_CONN: "{{ airflow_database_conn }}"
When I run unittests with django-simple-history==1.6.0, it runs fine but with
django-simple-history==1.9.0 it breaks the unittests.
Any ideas how to fix this?
Creating test database for alias 'default'...
Traceback (most recent call last):
File "manage.py", line 12, in <module>
execute_from_command_line(sys.argv)
File "/home/me/venv/lib/python2.7/site-packages/django/core/management/__init__.py", line 338, in execute_from_command_line
utility.execute()
File "/home/me/venv/lib/python2.7/site-packages/django/core/management/__init__.py", line 330, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/home/me/venv/lib/python2.7/site-packages/django/core/management/commands/test.py", line 30, in run_from_argv
super(Command, self).run_from_argv(argv)
File "/home/me/venv/lib/python2.7/site-packages/django/core/management/base.py", line 390, in run_from_argv
self.execute(*args, **cmd_options)
File "/home/me/venv/lib/python2.7/site-packages/django/core/management/commands/test.py", line 74, in execute
super(Command, self).execute(*args, **options)
File "/home/me/venv/lib/python2.7/site-packages/django/core/management/base.py", line 441, in execute
output = self.handle(*args, **options)
File "/home/me/venv/lib/python2.7/site-packages/django/core/management/commands/test.py", line 90, in handle
failures = test_runner.run_tests(test_labels)
File "/home/me/venv/lib/python2.7/site-packages/django/test/runner.py", line 210, in run_tests
old_config = self.setup_databases()
File "/home/me/venv/lib/python2.7/site-packages/django/test/runner.py", line 166, in setup_databases
**kwargs
File "/home/me/venv/lib/python2.7/site-packages/django/test/runner.py", line 370, in setup_databases
serialize=connection.settings_dict.get("TEST", {}).get("SERIALIZE", True),
File "/home/me/venv/lib/python2.7/site-packages/django/db/backends/base/creation.py", line 376, in create_test_db
self.connection._test_serialized_contents = self.serialize_db_to_string()
File "/home/me/venv/lib/python2.7/site-packages/django/db/backends/base/creation.py", line 413, in serialize_db_to_string
serializers.serialize("json", get_objects(), indent=None, stream=out)
File "/home/me/venv/lib/python2.7/site-packages/django/core/serializers/__init__.py", line 129, in serialize
s.serialize(queryset, **options)
File "/home/me/venv/lib/python2.7/site-packages/django/core/serializers/base.py", line 52, in serialize
for obj in queryset:
File "/home/me/venv/lib/python2.7/site-packages/django/db/backends/base/creation.py", line 409, in get_objects
for obj in queryset.iterator():
File "/home/me/venv/lib/python2.7/site-packages/django/db/models/query.py", line 238, in iterator
results = compiler.execute_sql()
File "/home/me/venv/lib/python2.7/site-packages/django/db/models/sql/compiler.py", line 829, in execute_sql
cursor.execute(sql, params)
File "/home/me/venv/lib/python2.7/site-packages/django/db/backends/utils.py", line 64, in execute
return self.cursor.execute(sql, params)
File "/home/me/venv/lib/python2.7/site-packages/django/db/utils.py", line 97, in __exit__
six.reraise(dj_exc_type, dj_exc_value, traceback)
File "/home/me/venv/lib/python2.7/site-packages/django/db/backends/utils.py", line 64, in execute
return self.cursor.execute(sql, params)
File "/home/me/venv/lib/python2.7/site-packages/django/db/backends/sqlite3/base.py", line 318, in execute
return Database.Cursor.execute(self, query, params)
django.db.utils.OperationalError: no such column: myapp_historicalbook.history_change_reason
I got it. I had to remove my migration folder in order to be able to run the unit tests.
my ipython notebook functionality stop working.
If I do
ipython notebook
the console just hangs forever with no debug output.
I have already tried reinstalling ipython but no success.
Also, if I start normal ipython everything seems fine.
Does anybody have a clue how to solve this? I suspect some lock file is still there but how can I find out what is exactly going wrong?
also if I force interrupt I get the following stack trace
^C^CTraceback (most recent call last):
File "/home/lfiaschi/anaconda/bin/ipython", line 9, in <module>
load_entry_point('ipython==1.2.1', 'console_scripts', 'ipython')()
File "/home/lfiaschi/anaconda/lib/python2.7/site-packages/IPython/__init__.py", line 118, in start_ipython
return launch_new_instance(argv=argv, **kwargs)
File "/home/lfiaschi/anaconda/lib/python2.7/site-packages/IPython/config/application.py", line 544, in launch_instance
app.initialize(argv)
File "<string>", line 2, in initialize
File "/home/lfiaschi/anaconda/lib/python2.7/site-packages/IPython/config/application.py", line 89, in catch_config_error
return method(app, *args, **kwargs)
File "/home/lfiaschi/anaconda/lib/python2.7/site-packages/IPython/terminal/ipapp.py", line 312, in initialize
super(TerminalIPythonApp, self).initialize(argv)
File "<string>", line 2, in initialize
File "/home/lfiaschi/anaconda/lib/python2.7/site-packages/IPython/config/application.py", line 89, in catch_config_error
return method(app, *args, **kwargs)
File "/home/lfiaschi/anaconda/lib/python2.7/site-packages/IPython/core/application.py", line 373, in initialize
self.parse_command_line(argv)
File "/home/lfiaschi/anaconda/lib/python2.7/site-packages/IPython/terminal/ipapp.py", line 307, in parse_command_line
return super(TerminalIPythonApp, self).parse_command_line(argv)
File "<string>", line 2, in parse_command_line
File "/home/lfiaschi/anaconda/lib/python2.7/site-packages/IPython/config/application.py", line 89, in catch_config_error
return method(app, *args, **kwargs)
File "/home/lfiaschi/anaconda/lib/python2.7/site-packages/IPython/config/application.py", line 474, in parse_command_line
return self.initialize_subcommand(subc, subargv)
File "<string>", line 2, in initialize_subcommand
File "/home/lfiaschi/anaconda/lib/python2.7/site-packages/IPython/config/application.py", line 89, in catch_config_error
return method(app, *args, **kwargs)
File "/home/lfiaschi/anaconda/lib/python2.7/site-packages/IPython/config/application.py", line 405, in initialize_subcommand
subapp = import_item(subapp)
File "/home/lfiaschi/anaconda/lib/python2.7/site-packages/IPython/utils/importstring.py", line 42, in import_item
module = __import__(package, fromlist=[obj])
File "/home/lfiaschi/anaconda/lib/python2.7/site-packages/IPython/html/notebookapp.py", line 64, in <module>
from .services.kernels.kernelmanager import MappingKernelManager
File "/home/lfiaschi/anaconda/lib/python2.7/site-packages/IPython/html/services/kernels/kernelmanager.py", line 21, in <module>
from IPython.kernel.multikernelmanager import MultiKernelManager
File "/home/lfiaschi/anaconda/lib/python2.7/site-packages/IPython/kernel/__init__.py", line 6, in <module>
from .connect import *
File "/home/lfiaschi/anaconda/lib/python2.7/site-packages/IPython/kernel/connect.py", line 39, in <module>
from IPython.utils.localinterfaces import LOCALHOST
File "/home/lfiaschi/anaconda/lib/python2.7/site-packages/IPython/utils/localinterfaces.py", line 43, in <module>
PUBLIC_IPS = socket.gethostbyname_ex(socket.gethostname() + '.local')[2]
KeyboardInterrupt
I had the same problem in Linux/Ubuntu. This also hanged spyder.
Workaround for me:
(1) Look at host name of computer
cat /etc/hostname
which gives e.g. my-laptop
(2) Ensure that /etc/hosts contains the following entry
127.0.0.1 my-laptop my-laptop.local
because ipython looks for a 'local' extension too.
And fire up again ipython notebook or spyder. This worked for me for spyder, when it was hanging at:
PUBLIC_IPS = socket.gethostbyname_ex(socket.gethostname() + '.local')[2]
When I try to start the ipython notebook from EPD's Canopy while not connected to the Internet, the notebook crashes before starting up.
This does not happen when connected to the net.
Any help would be most welcome.
The short crash dump follows next. The full dump from setting c.Application.verbose_crash=True in the config file can be found here https://gist.github.com/xaverm/6873969
Short dump
~>.Canopy/EPDenvironment/bin/ipython notebook
[NotebookApp] Using existing profile dir: u'/home/xuserx/.ipython/profile_default'
[NotebookApp] Serving notebooks from /home/xuserx
Traceback (most recent call last):
File ".Canopy/EPDenvironment/bin/ipython", line 10, in <module>
sys.exit(launch_new_instance())
File "/home/xuserx/.Canopy/EPDenvironment/lib/python2.7/site-packages/IPython/frontend/terminal/ipapp.py", line 401, in launch_new_instance
app.initialize()
File "<string>", line 2, in initialize
File "/home/xuserx/.Canopy/EPDenvironment/lib/python2.7/site-packages/IPython/config/application.py", line 84, in catch_config_error
return method(app, *args, **kwargs)
File "/home/xuserx/.Canopy/EPDenvironment/lib/python2.7/site-packages/IPython/frontend/terminal/ipapp.py", line 313, in initialize
super(TerminalIPythonApp, self).initialize(argv)
File "<string>", line 2, in initialize
File "/home/xuserx/.Canopy/EPDenvironment/lib/python2.7/site-packages/IPython/config/application.py", line 84, in catch_config_error
return method(app, *args, **kwargs)
File "/home/xuserx/.Canopy/EPDenvironment/lib/python2.7/site-packages/IPython/core/application.py", line 325, in initialize
self.parse_command_line(argv)
File "/home/xuserx/.Canopy/EPDenvironment/lib/python2.7/site-packages/IPython/frontend/terminal/ipapp.py", line 308, in parse_command_line
return super(TerminalIPythonApp, self).parse_command_line(argv)
File "<string>", line 2, in parse_command_line
File "/home/xuserx/.Canopy/EPDenvironment/lib/python2.7/site-packages/IPython/config/application.py", line 84, in catch_config_error
return method(app, *args, **kwargs)
File "/home/xuserx/.Canopy/EPDenvironment/lib/python2.7/site-packages/IPython/config/application.py", line 420, in parse_command_line
return self.initialize_subcommand(subc, subargv)
File "<string>", line 2, in initialize_subcommand
File "/home/xuserx/.Canopy/EPDenvironment/lib/python2.7/site-packages/IPython/config/application.py", line 84, in catch_config_error
return method(app, *args, **kwargs)
File "/home/xuserx/.Canopy/EPDenvironment/lib/python2.7/site-packages/IPython/config/application.py", line 359, in initialize_subcommand
self.subapp.initialize(argv)
File "<string>", line 2, in initialize
File "/home/xuserx/.Canopy/EPDenvironment/lib/python2.7/site-packages/IPython/config/application.py", line 84, in catch_config_error
return method(app, *args, **kwargs)
File "/home/xuserx/.Canopy/EPDenvironment/lib/python2.7/site-packages/IPython/frontend/html/notebook/notebookapp.py", line 532, in initialize
self.init_webapp()
File "/home/xuserx/.Canopy/EPDenvironment/lib/python2.7/site-packages/IPython/frontend/html/notebook/notebookapp.py", line 450, in init_webapp
self.http_server.listen(port, self.ip)
File "/home/xuserx/.Canopy/EPDenvironment/lib/python2.7/site-packages/tornado/netutil.py", line 100, in listen
sockets = bind_sockets(port, address=address)
File "/home/xuserx/.Canopy/EPDenvironment/lib/python2.7/site-packages/tornado/netutil.py", line 248, in bind_sockets
0, flags)):
gaierror: [Errno -9] Address family for hostname not supported
This issue should be considerd closed: even after a complete Canopy reinstall & update, standalone ipython notebooks started from out of the directory generated by ~/Canopy/canopy_cli setup, as described on http://docs.enthought.com/canopy/configure/canopy-cli.html still do crash if the host is not connected to a network. However the ipython notebook started from .Canopy/Enthought/Canopy_64bit/User/bin/ipython now works also if disconnected from a network. That's ok. for me.