requests.exceptions.ConnectionError: HTTPConnectionPool(host='api.yundama.com', port=80): Max retries exceeded with url: /api.php (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x00000148AF16E4C0>: Failed to establish a new connection: [Errno 11001] getaddrinfo failed'))

api.yundama.com都ping不通...

您好，求解答： “巧克力”中“巧客”和“力”的凝固程度很高，所以更倾向于把“巧克力”定义为一个词，为什么按凝固程度，程序会找出“巧客”这样半个词的片段（博文中这么写的）谢谢？？？？

操作步骤：
pip insatll fitz 安装未报错

import fitz
报错 ImportError: No module named 'frontend'
请问大概是什么原因呢？

环境是python3.6版本。

具体信息如下：
(tensorflow) [root@tensorflow01 ~]# python3.6
Python 3.6.8 |Anaconda, Inc.| (default, Dec 30 2018, 01:22:34)
[GCC 7.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.

import fitz
Traceback (most recent call last):
File "", line 1, in
File "/root/anaconda3/envs/tensorflow/lib/python3.6/site-packages/fitz/init.py", line 1, in
from frontend import *
ModuleNotFoundError: No module named 'frontend'