ImportError: dynamic module does not define module export function (PyInit_ydk_) #840
Description
Expected Behavior
YDK should work well with python2 and python3 in Centos7.5
Current Behavior
I have built and installed YDK-gen and YDK-py using python2 and python3 in my Centos 7.5 VM , it works well in python2 but not in python3, and I notice that both of them are built using the same GCC 4.8.5.More details you can also refer to the community discussion
Steps to Reproduce
[root@localhost ydk-gen]#
[root@localhost ydk-gen]# cat /etc/centos-release
CentOS Linux release 7.5.1804 (Core)
[root@localhost ydk-gen]#
[root@localhost ydk-gen]#
[root@localhost ydk-gen]#
[root@localhost ydk-gen]#
[root@localhost ydk-gen]# python -V
Python 3.6.2
[root@localhost ydk-gen]#
[root@localhost ydk-gen]#
[root@localhost ydk-gen]# python -m pip list
Package Version
----------------------- -----------
alabaster 0.7.12
Babel 2.6.0
docutils 0.14
gitdb 0.6.4
GitPython 1.0.1
imagesize 1.1.0
Jinja2 2.10
MarkupSafe 1.1.0
pbr 5.1.1
pip 18.1
pyang 1.6
pybind11 2.2.4
Pygments 2.2.0
pytz 2018.7
rstr 2.2.6
setuptools 28.8.0
six 1.11.0
smmap 0.9.0
snowballstemmer 1.2.1
Sphinx 1.4a1
sphinx-rtd-theme 0.1.9
stevedore 1.30.0
virtualenv 16.1.0
virtualenv-clone 0.4.0
virtualenvwrapper 4.8.2
ydk 0.7.3
ydk-models-cisco-ios-xr 6.5.1
ydk-models-ietf 0.1.5.post2
[root@localhost ydk-gen]#
[root@localhost ydk-gen]#
[root@localhost ydk-gen]# python
Python 3.6.2 (default, Nov 21 2018, 21:44:58)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-28)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>
>>> from ydk import *
>>>
>>>
>>> from ydk.types import Empty
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/python3.6/lib/python3.6/site-packages/ydk/types/__init__.py", line 17, in <module>
from .py_types import Entity, EntityCollection, Config, Filter, YList, YLeafList
File "/usr/local/python3.6/lib/python3.6/site-packages/ydk/types/py_types.py", line 35, in <module>
from ydk_ import is_set
ImportError: dynamic module does not define module export function (PyInit_ydk_)
>>>
>>>
>>> from ydk.services import CRUDService
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/python3.6/lib/python3.6/site-packages/ydk/services/__init__.py", line 17, in <module>
from .codec_service import CodecService
File "/usr/local/python3.6/lib/python3.6/site-packages/ydk/services/codec_service.py", line 21, in <module>
from ydk.entity_utils import get_data_node_from_entity as _get_data_node_from_entity
File "/usr/local/python3.6/lib/python3.6/site-packages/ydk/entity_utils/__init__.py", line 17, in <module>
from ydk.ext.entity_utils import get_data_node_from_entity
File "/usr/local/python3.6/lib/python3.6/site-packages/ydk/exthook.py", line 87, in load_module
raise ImportError('No module named %s' % fullname)
ImportError: No module named ydk.ext.entity_utils
>>>
>>>
and
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]# sudo yum install epel-release
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: centos.nethub.com.hk
* epel: mirror2.totbb.net
* extras: centos.nethub.com.hk
* updates: centos.nethub.com.hk
rabbitmq_erlang/x86_64/signature | 836 B 00:00:00
rabbitmq_erlang/x86_64/signature | 1.0 kB 00:00:00 !!!
rabbitmq_erlang-source/signature | 836 B 00:00:00
rabbitmq_erlang-source/signature | 951 B 00:00:00 !!!
Package epel-release-7-11.noarch already installed and latest version
Nothing to do
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]# sudo yum install libssh-devel gcc-c++ python-devel
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: centos.nethub.com.hk
* epel: mirror2.totbb.net
* extras: centos.nethub.com.hk
* updates: centos.nethub.com.hk
Package libssh-devel-0.7.1-3.el7.x86_64 already installed and latest version
Package gcc-c++-4.8.5-28.el7_5.1.x86_64 already installed and latest version
Package python-devel-2.7.5-69.el7_5.x86_64 already installed and latest version
Nothing to do
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]# sudo yum install https://devhub.cisco.com/artifactory/rpm-ydk/0.7.3/libydk-0.7.3-1.x86_64.rpm
Loaded plugins: fastestmirror
libydk-0.7.3-1.x86_64.rpm | 2.1 MB 00:00:01
Examining /var/tmp/yum-root-j0oOQI/libydk-0.7.3-1.x86_64.rpm: libydk-0.7.3-1.x86_64
/var/tmp/yum-root-j0oOQI/libydk-0.7.3-1.x86_64.rpm: does not update installed package.
Error: Nothing to do
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]# sudo yum install centos-release-scl -y > /dev/null
[root@localhost ~]#
[root@localhost ~]# sudo yum install devtoolset-4-gcc* -y > /dev/null
[root@localhost ~]#
[root@localhost ~]# sudo ln -sf /opt/rh/devtoolset-4/root/usr/bin/gcc /usr/bin/cc
[root@localhost ~]#
[root@localhost ~]# sudo ln -sf /opt/rh/devtoolset-4/root/usr/bin/g++ /usr/bin/c++
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]# python2
Python 2.7.5 (default, Jul 13 2018, 13:06:57)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-28)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>>
>>> import ydk
>>> from ydk.types import Empty
>>> from ydk.services import CRUDService
>>>
>>> exit()
[root@localhost ~]#
[root@localhost ~]# python
Python 3.6.2 (default, Nov 21 2018, 21:44:58)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-28)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>
>>> import ydk
>>> from ydk.types import Empty
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/python3.6/lib/python3.6/site-packages/ydk/types/__init__.py", line 17, in <module>
from .py_types import Entity, EntityCollection, Config, Filter, YList, YLeafList
File "/usr/local/python3.6/lib/python3.6/site-packages/ydk/types/py_types.py", line 35, in <module>
from ydk_ import is_set
ImportError: dynamic module does not define module export function (PyInit_ydk_)
>>>
>>> from ydk.services import CRUDService
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/python3.6/lib/python3.6/site-packages/ydk/services/__init__.py", line 17, in <module>
from .codec_service import CodecService
File "/usr/local/python3.6/lib/python3.6/site-packages/ydk/services/codec_service.py", line 21, in <module>
from ydk.entity_utils import get_data_node_from_entity as _get_data_node_from_entity
File "/usr/local/python3.6/lib/python3.6/site-packages/ydk/entity_utils/__init__.py", line 17, in <module>
from ydk.ext.entity_utils import get_data_node_from_entity
File "/usr/local/python3.6/lib/python3.6/site-packages/ydk/exthook.py", line 87, in load_module
raise ImportError('No module named %s' % fullname)
ImportError: No module named ydk.ext.entity_utils
>>>
>>> exit()
[root@localhost ~]#
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