Question

Installed all the dependencies for juju

pip install pyparsing==1.5.7
pip install pyOpenSSL PyYAML txaws pydot oauth txzookeeper zc-zookeeper-static
pip install juju

所有已安装的罚款,但当我开始<代码>ju时,有以下错误:

(jujuapp) ± juju                                                                                           
Traceback (most recent call last):
  File "/Users/millisami/.virtualenvs/jujuapp/bin/juju", line 4, in <module>
    from juju.control import main
  File "/Users/millisami/.virtualenvs/jujuapp/lib/python2.7/site-packages/juju/control/__init__.py", line 7, in <module>
    from .utils import ParseError
  File "/Users/millisami/.virtualenvs/jujuapp/lib/python2.7/site-packages/juju/control/utils.py", line 8, in <module>
    from juju.state.environment import EnvironmentStateManager
  File "/Users/millisami/.virtualenvs/jujuapp/lib/python2.7/site-packages/juju/state/environment.py", line 8, in <module>
    from juju.environment.config import EnvironmentsConfig
  File "/Users/millisami/.virtualenvs/jujuapp/lib/python2.7/site-packages/juju/environment/config.py", line 8, in <module>
    from juju.lib import serializer
  File "/Users/millisami/.virtualenvs/jujuapp/lib/python2.7/site-packages/juju/lib/serializer.py", line 1, in <module>
    from yaml import CSafeLoader, CSafeDumper, Mark
ImportError: cannot import name CSafeLoader

What is this error? I m on Mac 10.6, python and pip installed via homebrew.

Answer 1

I just ran into this issue on 10.8; juju uses the libyaml bindings in PyYaml, so it needs to have PyYaml installed --with-libyaml, which requires more than that on the mac. Here s how I got it working:

brew install libyaml with homebrew
Download PyYaml source (instructions)

现在改为<代码>[pyyaml-install-dir]/制定。类似:

# List of directories to search for  yaml.h  (separated by  : ).
include_dirs=/usr/local/Cellar/libyaml/0.1.4/include/

# List of directories to search for  libyaml.a  (separated by  : ).
library_dirs=/usr/local/Cellar/libyaml/0.1.4/lib/

So it can find your homebrew installation of libyaml. Then you also need to install Cython..

sudo pip install cython

and finally..

sudo python setup.py --with-libyaml install (in the PyYaml dir)

Now juju should work!

Answer 2

面对2024年的问题:我的行动记录如下:

brew install libyaml
export LDFLAGS="-L/opt/homebrew/Cellar/libyaml/0.2.5/lib/"
export CFLAGS="-I/opt/homebrew/Cellar/libyaml/0.2.5/include/"

pip --no-cache-dir install --verbose --global-option= --with-libyaml  --force-reinstall -I pyyaml

然后 from yaml import CSafeLoader成

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