[USRP-users] Build RFNoC environment

Nicolas Cuervo nicolas.cuervo at ettus.com
Mon Jul 3 07:04:54 EDT 2017


Hello Kim,

Are you still facing this problem while trying a pybombs installation?
While looking at the previous commits from pybombs, there were a couple
ruamel related that might have had something to do with API changes [1].
There have been changes in PyBombs since then. So, if you are still facing
this, could you please update your pybombs:

$ [sudo] pip install [--upgrade] git+https://github.com/gnuradio/pybombs.git

and try again?

If you try this, please let us know if the issue persists as well.

Regards,
- Nicolas


[1] Not completely sure, but might have to do with your specific issue:
https://github.com/gnuradio/pybombs/commit/635a69c69109febcf9c800d6b5aaffa310712026
https://github.com/gnuradio/pybombs/commit/62b6a01b841845ff34ba0e3d69d3248c7322e841

On Fri, Jun 9, 2017 at 12:24 PM, 김태영 via USRP-users <
usrp-users at lists.ettus.com> wrote:

> Hi all.
>
>
>
> I installed GRC on Ubuntu 16.04 with <Software Development on the E310 and
> E312> procedure.
>
> after that I tried <Getting Started with RFNoC Development> procedure, and
> fail.
>
> I reinstall ubuntu and <Getting Started with RFNoC Development> again.
>
>
>
> I got this error message on "pybombs prefix init ~/rfnoc -R rfnoc -a
> rfnoc" step.
>
> I hope someone guide me to right procedure, or teach me what am i missing.
>
>
>
>
>
> Exception ruamel.yaml.constructor.ConstructorError: ConstructorError() in
> <generator object construct_undefined at 0x7fd5261ba0a0> ignored
> Traceback (most recent call last):
>   File "/usr/local/bin/pybombs", line 9, in <module>
>     load_entry_point('PyBOMBS==2.3.1a0', 'console_scripts', 'pybombs')()
>   File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line
> 542, in load_entry_point
>     return get_distribution(dist).load_entry_point(group, name)
>   File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line
> 2569, in load_entry_point
>     return ep.load()
>   File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line
> 2229, in load
>     return self.resolve()
>   File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line
> 2235, in resolve
>     module = __import__(self.module_name, fromlist=['__name__'], level=0)
>   File "/usr/local/lib/python2.7/dist-packages/pybombs/main.py", line 26,
> in <module>
>     from pybombs.commands import dispatch
>   File "/usr/local/lib/python2.7/dist-packages/pybombs/commands/__init__.py",
> line 23, in <module>
>     from .base import CommandBase, SubCommandBase, dispatch
>   File "/usr/local/lib/python2.7/dist-packages/pybombs/commands/base.py",
> line 27, in <module>
>     from pybombs.config_manager import config_manager
>   File "/usr/local/lib/python2.7/dist-packages/pybombs/config_manager.py",
> line 654, in <module>
>     config_manager = ConfigManager()
>   File "/usr/local/lib/python2.7/dist-packages/pybombs/config_manager.py",
> line 330, in __init__
>     self.load(select_prefix)
>   File "/usr/local/lib/python2.7/dist-packages/pybombs/config_manager.py",
> line 370, in load
>     if self._append_cfg_from_file(self.local_cfg):
>   File "/usr/local/lib/python2.7/dist-packages/pybombs/config_manager.py",
> line 446, in _append_cfg_from_file
>     cfg_data = PBConfigFile(cfg_filename).get()
>   File "/usr/local/lib/python2.7/dist-packages/pybombs/config_file.py",
> line 42, in __init__
>     raise PBException("Error loading {0}: {1}".format(filename, str(e)))
> pybombs.pb_exception.PBException: Error loading /home/duck4985/.pybombs/config.yml:
> could not determine a constructor for the tag '!!python/tuple'
>   in "<byte string>", line 3, column 3:
>     - !!python/tuple []
>       ^ (line: 3)
>
>
>
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