耗时两日，安装fbprophet
Facebook的开源时序分析库fbprophet号称史上最难安装的库，实测确实如此。
百度了各种简单粗暴或者详细的安装步骤，期间遭遇了各种各样奇怪的问题，现简录如下：
1.已经安装了pystan的前提下，用conda install -c conda-forge install fbprophet，
(base) C:\WINDOWS\system32>conda install -c conda-forge fbprophet
Collecting package metadata (current_repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.
Solving environment: failed with repodata from current_repodata.json, will retry with next repodata source.
Collecting package metadata (repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.2.出现上述问题，我尝试了用管理员权限conda update --all, 等所有的包都更新完毕之后，再次conda install -c conda-forge install fbprophet , 读出另一个环境不匹配的问题，我的python版本是3.9,与fbprophet不兼容。
(base) C:\WINDOWS\system32>conda install -c conda-forge fbprophet
Collecting package metadata (current_repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.
Solving environment: failed with repodata from current_repodata.json, will retry with next repodata source.
Collecting package metadata (repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.
Solving environment: /
Found conflicts! Looking for incompatible packages.
This can take several minutes. Press CTRL-C to abort.
failed
UnsatisfiableError: The following specifications were found
to be incompatible with the existing python installation in your environment:
Specifications:
- fbprophet -> python[version='2.7.*|3.5.*|3.6.*|>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.8,<3.9.0a0|>=3.7,<3.8.0a0']
Your python: python=3.93.在Anaconda中创建python3.7的虚拟环境：
conda create -n py37 python=3.74.激活并进入虚拟环境，然后再安装fbprophet：
(base) C:\WINDOWS\system32>activate py37
(py37) C:\WINDOWS\system32>conda install -c conda-forge fbprophet
Collecting package metadata (current_repodata.json): done
Solving environment: done
# All requested packages already installed.
(py37) C:\WINDOWS\system32>python
Python 3.7.11 (default, Jul 27 2021, 09:42:29) [MSC v.1916 64 bit (AMD64)] :: Anaconda, Inc. on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import fbprophet
Importing plotly failed. Interactive plots will not work.可以发现虚拟环境中确实可以正确安装fbprophet，但是导入该库时发掘提示Interactive plots will not work，于是又需要conda install plotly -y来安装plotly库，真是环环相扣，问题百出的一个库。
5.在Anaconda 的python3.7虚拟环境安装完fbprophet之后，后续需要使用fbprophet时有两个方法：1）cmd里面activate your_environment进入所创建的虚拟环境，然后在这个环境里面导入fbprophet，但是使用体验不如jupyterlab好；2）可以通过下述操作把新装的虚拟环境链接到Jupyter Lab的内核，参考链接如下：
如何为 jupyter notebook 设置虚拟环境？ - 知乎 (zhihu.com)
https://www.zhihu.com/question/484697094/answer/2177731428
下面是知乎里介绍的与Jupyter Lab建立连接的必要操作（详细内容请点击网页链接查看）：
先激活环境：
conda activate your_env_name安装Ipykernal：
pip install ipykernel建立连接：
python -m ipykernel install --user --name your_env_name查看链接是否成功：
jupyter kernelspec list6.重启Jupyter Lab，在Jupyter Lab首页的内核选择下拉清单，能看到此前创建的虚拟环境，切换到该虚拟环境之后，就能顺利导入fbprophet。总算可以愉快的玩fbprophet了！
经过两天的搏杀，总算成功装好fbprophet，后续的使用分析过程会一点点的upload到这里，Tks。