"mitogen" library should be added as a dependency in "pyroute2.core"

[ralonsoh]

Library "mitogen" is used in "pyroute2.core". It should be added as an installation dependency in the installation JSON file, under "install_requires" key.

In Neutron, when docs CI job is executed, all "pyroute2.core" modules are loaded and this library is not present.

Bug: https://bugs.launchpad.net/neutron/+bug/1928913

Snippet: http://paste.openstack.org/show/805473/

[mkorkalo]

I ran into the same issue.

[svinota]

Will be fixed tonight.

[ralonsoh]

Thanks a lot!

[svinota]

@ralonsoh the proper fix will take a bit more time.

The issue is that pyroute2.core must have no other deps than stdlib, even more strictly — a subset of stdlib.

The module causing this error is to be moved out of pyroute2.core, I try to fix that asap.

[svinota]

Should be fixed now. Will be in the next release on the weekend.

[ralonsoh]

Thank you!

[svinota]

@ralonsoh please check if 0.6.2 works for you, the release is tagged and uploaded

[ralonsoh]

Hi @svinota:

We still have this problem because mitogen is not installed as a dependency of pyroute2 (not pyroute2-minimal). I think that is because of the project restructure. If (full)pyroute2 is installed, the main module will load all submodules (pr2modules) [1]. When pyroute2.nslink/pr2modules/remote/iproute.py is loaded, mitogen must be installed.

We have added a condition in our CI, forcing the mitogen library installation in this CI job: https://review.opendev.org/c/openstack/neutron/+/792077

Regards!

[1]https://github.com/svinota/pyroute2/blob/0.6.2/pyroute2/pyroute2/__init__.py#L68

[svinota]

Really sorry, I was sure that I have fixed the import, it must simply disable one class if mitogen not installed, but not raise any exception unless this class is directly addressed. Shortly speaking, mitogen must be optional.

So the bug is still here. Ok, fixing.

[svinota]

No, but wait. Why do you even load pyroute2.nslink/pr2modules/remote/iproute.py ? Neutron doesn't use it, IIRC?

make docs doesn't fail on that if there is no mitogen in the system, I have double-checked it right now.

[ralonsoh]

Right now Neutron installs mitogen when executing the "docs" tox job [1]. If you remove the mitogen library installation and force pyroute 0.6.2, the result is the same.

Output: http://paste.openstack.org/show/805732/

Changes in tox.ini: http://paste.openstack.org/show/805733/

[1]https://review.opendev.org/c/openstack/neutron/+/792077

[svinota]

@ralonsoh I tried to remove the mitogen dependency from the neutron's tox.ini. Docs are still building ok.

(venv) neutron {master} $ git diff
diff --git a/tox.ini b/tox.ini
index 95e5db64d8..0d65b024fc 100644
--- a/tox.ini
+++ b/tox.ini
@@ -141,9 +141,6 @@ envdir = {toxworkdir}/docs
 deps =
   -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
   -r{toxinidir}/doc/requirements.txt
-# NOTE(slaweq): mitogen is optional dependency of the pyroute2 and without it
-# our docs job is failing
-  mitogen>=0.2.9
 commands = sphinx-build -W -b html doc/source doc/build/html
 
 [testenv:pdf-docs]

(venv) neutron {master} $ tox -e docs
docs recreate: /home/test/Projects/neutron/.tox/docs
docs installdeps: -chttps://releases.openstack.org/constraints/upper/master, -r/home/test/Projects/neutron/doc/requirements.txt
docs develop-inst: /home/test/Projects/neutron
docs installed: alabaster==0.7.12,alembic==1.6.4,amqp==5.0.6,appdirs==1.4.4,attrs==21.2.0,Babel==2.9.1,beautifulsoup4==4.9.3,cachetools==4.2.2,certifi==2020.12.5,cffi==1.14.5,chardet==4.0.0,cliff==3.7.0,cmd2==1.5.0,colorama==0.4.4,cryptography==3.4.7,debtcollector==2.2.0,decorator==5.0.9,dnspython==1.16.0,docutils==0.16,dogpile.cache==1.1.3,dulwich==0.20.23,eventlet==0.31.0,extras==1.0.0,fasteners==0.16,fixtures==3.0.0,futurist==2.3.0,greenlet==1.1.0,httplib2==0.19.1,idna==2.10,imagesize==1.2.0,iso8601==0.1.14,Jinja2==3.0.1,jmespath==0.10.0,jsonpatch==1.32,jsonpointer==2.1,jsonschema==3.2.0,keystoneauth1==4.3.1,keystonemiddleware==9.2.0,kombu==5.1.0,linecache2==1.0.0,logutils==0.3.5,Mako==1.1.4,MarkupSafe==2.0.1,msgpack==1.0.2,munch==2.5.0,netaddr==0.8.0,netifaces==0.10.9,-e git+https://review.opendev.org/openstack/neutron@dd24662e5316a72fc5b9cbfe36bec1705ce2c505#egg=neutron,neutron-lib==2.11.0,openstackdocstheme==2.2.7,openstacksdk==0.57.0,os-client-config==2.1.0,os-ken==1.4.0,os-service-types==1.7.0,os-traits==2.5.0,os-vif==2.4.0,osc-lib==2.4.0,oslo.cache==2.7.0,oslo.concurrency==4.4.0,oslo.config==8.7.0,oslo.context==3.2.0,oslo.db==9.0.0,oslo.i18n==5.0.1,oslo.log==4.5.0,oslo.messaging==12.7.1,oslo.middleware==4.2.0,oslo.policy==3.8.0,oslo.privsep==2.5.0,oslo.reports==2.2.0,oslo.rootwrap==6.2.0,oslo.serialization==4.1.0,oslo.service==2.5.0,oslo.upgradecheck==1.3.0,oslo.utils==4.9.0,oslo.versionedobjects==2.4.0,oslotest==4.4.1,osprofiler==3.4.0,ovs==2.13.3,ovsdbapp==1.10.0,packaging==20.9,Paste==3.5.0,PasteDeploy==2.1.1,pbr==5.6.0,pecan==1.4.0,prettytable==0.7.2,psutil==5.8.0,pycadf==3.1.1,pycparser==2.20,Pygments==2.9.0,pyinotify==0.9.6,pyOpenSSL==20.0.1,pyparsing==2.4.7,pyperclip==1.8.2,pyroute2==0.5.19,pyrsistent==0.17.3,python-dateutil==2.8.1,python-designateclient==4.2.0,python-editor==1.0.4,python-keystoneclient==4.2.0,python-mimeparse==1.6.0,python-neutronclient==7.3.0,python-novaclient==17.4.0,python-subunit==1.4.0,pytz==2021.1,PyYAML==5.4.1,reno==3.3.0,repoze.lru==0.7,requests==2.25.1,requestsexceptions==1.4.0,rfc3986==1.5.0,Routes==2.5.1,setproctitle==1.2.2,simplejson==3.17.2,six==1.16.0,snowballstemmer==2.1.0,sortedcontainers==2.4.0,soupsieve==2.2.1,Sphinx==3.5.4,sphinx-feature-classification==1.1.0,sphinxcontrib-applehelp==1.0.2,sphinxcontrib-devhelp==1.0.2,sphinxcontrib-htmlhelp==2.0.0,sphinxcontrib-jsmath==1.0.1,sphinxcontrib-qthelp==1.0.3,sphinxcontrib-serializinghtml==1.1.5,SQLAlchemy==1.4.15,sqlalchemy-migrate==0.13.0,sqlparse==0.4.1,statsd==3.3.0,stevedore==3.3.0,Tempita==0.5.2,tenacity==6.3.1,testresources==2.0.1,testscenarios==0.5.0,testtools==2.4.0,tinyrpc==1.0.4,tooz==2.9.0,traceback2==1.4.0,unittest2==1.1.0,urllib3==1.26.4,vine==5.0.0,voluptuous==0.12.1,waitress==2.0.0,wcwidth==0.2.5,WebOb==1.8.7,WebTest==2.0.35,wrapt==1.12.1,yappi==1.3.2
docs run-test-pre: PYTHONHASHSEED='689965651'
docs run-test: commands[0] | sphinx-build -W -b html doc/source doc/build/html
/home/test/Projects/neutron/.tox/docs/lib/python3.9/site-packages/sphinx/util/rst.py:56: DeprecationWarning: 'environmentfilter' is renamed to 'pass_environment', the old name will be removed in Jinja 3.1.
  def heading(env: Environment, text: str, level: int = 1) -> str:
Running Sphinx v3.5.4
/home/test/Projects/neutron/.tox/docs/lib/python3.9/site-packages/sphinx/jinja2glue.py:106: DeprecationWarning: 'contextfunction' is renamed to 'pass_context', the old name will be removed in Jinja 3.1.
  def warning(context: Dict, message: str, *args: Any, **kwargs: Any) -> str:
[openstackdocstheme] version: 2.2.7
[openstackdocstheme] connecting html-page-context event handler
loading pickled environment... done
/home/test/Projects/neutron/.tox/docs/lib/python3.9/site-packages/sphinx/jinja2glue.py:184: DeprecationWarning: 'contextfunction' is renamed to 'pass_context', the old name will be removed in Jinja 3.1.
  self.environment.globals['debug'] = contextfunction(pformat)
/home/test/Projects/neutron/.tox/docs/lib/python3.9/site-packages/sphinx/jinja2glue.py:186: DeprecationWarning: 'contextfunction' is renamed to 'pass_context', the old name will be removed in Jinja 3.1.
  self.environment.globals['accesskey'] = contextfunction(accesskey)
[openstackdocstheme] using theme from /home/test/Projects/neutron/.tox/docs/lib/python3.9/site-packages/openstackdocstheme/theme
[oslo_config.sphinxconfiggen] reading config generator instructions from /home/test/Projects/neutron/doc/source/../../etc/oslo-config-generator/dhcp_agent.ini
[oslo_config.sphinxconfiggen] writing sample configuration to /home/test/Projects/neutron/doc/source/_static/config-samples/dhcp_agent.conf.sample
/home/test/Projects/neutron/.tox/docs/lib/python3.9/site-packages/dns/hash.py:23: DeprecationWarning: dns.hash module will be removed in future versions. Please use hashlib instead.
  warnings.warn(
/home/test/Projects/neutron/.tox/docs/lib/python3.9/site-packages/dns/namedict.py:35: DeprecationWarning: Using or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated since Python 3.3, and in 3.10 it will stop working
  class NameDict(collections.MutableMapping):
WARNING:pyroute2:Beware of the coming changes in the project packaging
WARNING:pyroute2:https://github.com/svinota/pyroute2/discussions/786
/home/test/Projects/neutron/neutron/api/extensions.py:17: DeprecationWarning: the imp module is deprecated in favour of importlib; see the module's documentation for alternative uses
  import imp
[oslo_config.sphinxconfiggen] reading config generator instructions from /home/test/Projects/neutron/doc/source/../../etc/oslo-config-generator/l3_agent.ini
[oslo_config.sphinxconfiggen] writing sample configuration to /home/test/Projects/neutron/doc/source/_static/config-samples/l3_agent.conf.sample
[oslo_config.sphinxconfiggen] reading config generator instructions from /home/test/Projects/neutron/doc/source/../../etc/oslo-config-generator/linuxbridge_agent.ini
[oslo_config.sphinxconfiggen] writing sample configuration to /home/test/Projects/neutron/doc/source/_static/config-samples/linuxbridge_agent.conf.sample
[oslo_config.sphinxconfiggen] reading config generator instructions from /home/test/Projects/neutron/doc/source/../../etc/oslo-config-generator/macvtap_agent.ini
[oslo_config.sphinxconfiggen] writing sample configuration to /home/test/Projects/neutron/doc/source/_static/config-samples/macvtap_agent.conf.sample
[oslo_config.sphinxconfiggen] reading config generator instructions from /home/test/Projects/neutron/doc/source/../../etc/oslo-config-generator/metadata_agent.ini
[oslo_config.sphinxconfiggen] writing sample configuration to /home/test/Projects/neutron/doc/source/_static/config-samples/metadata_agent.conf.sample
[oslo_config.sphinxconfiggen] reading config generator instructions from /home/test/Projects/neutron/doc/source/../../etc/oslo-config-generator/metering_agent.ini
[oslo_config.sphinxconfiggen] writing sample configuration to /home/test/Projects/neutron/doc/source/_static/config-samples/metering_agent.conf.sample
[oslo_config.sphinxconfiggen] reading config generator instructions from /home/test/Projects/neutron/doc/source/../../etc/oslo-config-generator/ml2_conf.ini
[oslo_config.sphinxconfiggen] writing sample configuration to /home/test/Projects/neutron/doc/source/_static/config-samples/ml2_conf.conf.sample
[oslo_config.sphinxconfiggen] reading config generator instructions from /home/test/Projects/neutron/doc/source/../../etc/oslo-config-generator/neutron.conf
[oslo_config.sphinxconfiggen] writing sample configuration to /home/test/Projects/neutron/doc/source/_static/config-samples/neutron.conf.sample
[oslo_config.sphinxconfiggen] reading config generator instructions from /home/test/Projects/neutron/doc/source/../../etc/oslo-config-generator/openvswitch_agent.ini
[oslo_config.sphinxconfiggen] writing sample configuration to /home/test/Projects/neutron/doc/source/_static/config-samples/openvswitch_agent.conf.sample
[oslo_config.sphinxconfiggen] reading config generator instructions from /home/test/Projects/neutron/doc/source/../../etc/oslo-config-generator/ovn.ini
[oslo_config.sphinxconfiggen] writing sample configuration to /home/test/Projects/neutron/doc/source/_static/config-samples/ovn.conf.sample
[oslo_config.sphinxconfiggen] reading config generator instructions from /home/test/Projects/neutron/doc/source/../../etc/oslo-config-generator/sriov_agent.ini
[oslo_config.sphinxconfiggen] writing sample configuration to /home/test/Projects/neutron/doc/source/_static/config-samples/sriov_agent.conf.sample
[oslo_policy.sphinxpolicygen] reading config generator instructions from /home/test/Projects/neutron/doc/source/../../etc/oslo-policy-generator/policy.conf
[oslo_policy.sphinxpolicygen] writing sample policy to /home/test/Projects/neutron/doc/source/_static/neutron.policy.yaml.sample
ERROR:stevedore.extension:Could not load 'oslo_cache.etcd3gw': No module named 'etcd3gw'
ERROR:stevedore.extension:Could not load 'oslo_cache.memcache_pool': No module named 'memcache'
building [mo]: targets for 0 po files that are out of date
building [html]: targets for 271 source files that are out of date
updating environment: 0 added, 12 changed, 0 removed
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[ralonsoh]

You are installing pyroute2==0.5.19, from the logs provided, not 0.6.x.

I don't know why this is happening if you are pulling from requirements/master. In any case, you can also download the repository [1] and point to the file "requirements/upper-constraints.txt" as constraints file.

[1]https://github.com/openstack/requirements