Python 导入错误：无法导入名称 cbook
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ImportError: cannot import name cbook
提问by Anas Mubarak
>>> import matplotlib
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/lib/python2.7/dist-packages/matplotlib/__init__.py", line 123, in <module>
from . import cbook
ImportError: cannot import name cbook
I didn't find a solution, can anyone help?
我没有找到解决方案，有人可以帮忙吗？
回答by Szabolcs Dombi
1.Try to update matplotlib
1.尝试更新matplotlib
python -m pip install -U matplotlib
2.Try to reinstall matplotlib
2.尝试重新安装matplotlib
python -m pip uninstall matplotlib
python -m pip install -U matplotlib
What does the following snippet print to the console?
以下代码段向控制台打印了什么？
python -c "import matplotlib"
回答by Wilfred Hughes
I hit this issue today due to a bad dependency.
由于依赖性不好，我今天遇到了这个问题。
If you have both backports.shutil_get_terminal_sizeand
backports.functools_lru_cacheinstalled, you can encounter this.
如果你同时backports.shutil_get_terminal_size和
backports.functools_lru_cache安装，你可以遇到这种情况。
Matplotlib has a brittle workaround for a cyclic import:
Matplotlib 对循环导入有一个脆弱的解决方法：
# cbook must import matplotlib only within function
# definitions, so it is safe to import from it here.
from . import cbook
Until PR #10483,
matplotlib dependended on backports.functools_lru_cache.
在PR #10483 之前，matplotlib 依赖于backports.functools_lru_cache.
However, ipython depends on backports.shutil_get_terminal_size, and
that package doesn't set up a namespace package
properly.
但是，ipython 依赖于backports.shutil_get_terminal_size，并且
该包没有正确设置命名空间包。
If you have this problem, you'll see these symptoms:
如果您遇到此问题，您会看到以下症状：
>>> import backports
<module 'backports.shutil_get_terminal_size' from '/Users/whughes/miniconda2/envs/scratch/lib/python2.7/site-packages/backports/shutil_get_terminal_size/__init__.pyc'>
>>> >import backports.functools_lru_cache
ImportError: No module named functools_lru_cache
The problem with backports.shutil_get_terminal_sizeis that it
doesn't define a namespace package, so it breaks any other
backports.foopackages.
问题backports.shutil_get_terminal_size在于它没有定义命名空间包，所以它破坏了任何其他
backports.foo包。
Reinstalling matplotlib fixes this because it changes the order in
sys.path, putting backports.functools_lru_cachefirst, and that
package defines a proper namespace.
重新安装 matplotlib 解决了这个问题，因为它改变了 中的顺序
sys.path，backports.functools_lru_cache放在第一位，并且该包定义了一个适当的命名空间。
You can also fix this by reinstalling backports.shutil_get_terminal_size.
您也可以通过重新安装来解决此问题backports.shutil_get_terminal_size。
回答by user2078500
I solve the problem uninstalling matplotpli and reinstalling without pip:
我解决了卸载 matplotpli 并在没有pip 的情况下重新安装的问题：
$ sudo apt-get install python-matplotlib
Thanks to this README.html.
