安装开源版pymol、MPEG encoder missing.The FreeMOL add-ons may not be installed.Encoder ‘ffmpeg‘ is not

在跟随其他大佬的帖子下载开源版pymol的时候，发现了anaconda版本和pymol版本不兼容的情况，最新的anaconda版本conda下载pymol-2.4.0-cp38-cp38-win_amd64.whl之后，显示出的pymol窗口是这样怪异的版本，命令窗口和图形窗口可以分开，看分子都是正常的，但是导出动画视频的编码器出现了问题（如下图3.、4）

找了很多帖子，补下载什么的都没用，最后在一个学术论坛上找到了答案，不过人家是用的miniconda的环境，我还是继续用的anaconda2023的环境，以此篇日志记录一下

详细下载过程是：进到你想下载pymol的文件夹，打开cmd或者powershell可以试一下

D:\XZY\RJ\Pymol>conda create -n python38 python=3.8   #下载好conda之后要创建python环境,创建了一个存放python环境的单位 ，名为python38 D:\XZY\RJ\Pymol>conda activate python38       #激活python环境，之后打开conda要使用python时都要激活一下(python38)D:\XZY\RJ\Pymol>conda install -c conda-forge pymol-open-source    #下载开源版pymol(python38) D:\XZY\RJ\Pymol>conda install -c conda-forge ffmpeg    #下载ffmpeg的插件
Collecting package metadata (current_repodata.json): done
Solving environment: done==> WARNING: A newer version of conda exists. <==current version: 23.7.4latest version: 23.11.0Please update conda by running$ conda update -n base -c defaults condaOr to minimize the number of packages updated during conda update useconda install conda=23.11.0## Package Plan ##environment location: D:\XZY\RJ\conda\envs\python38added / updated specs:- ffmpegThe following packages will be downloaded:package                    |            build---------------------------|-----------------ffmpeg-4.3.1               |       ha925a31_0        26.2 MB  conda-forge------------------------------------------------------------Total:        26.2 MBThe following NEW packages will be INSTALLED:ffmpeg             conda-forge/win-64::ffmpeg-4.3.1-ha925a31_0Proceed ([y]/n)? yDownloading and Extracting PackagesPreparing transaction: done
Verifying transaction: done
Executing transaction: done(python38) D:\XZY\RJ\Pymol>conda install -c schrodinger mpeg_encode   #另一个插件
Collecting package metadata (current_repodata.json): done
Solving environment: done==> WARNING: A newer version of conda exists. <==current version: 23.7.4latest version: 23.11.0Please update conda by running$ conda update -n base -c defaults condaOr to minimize the number of packages updated during conda update useconda install conda=23.11.0## Package Plan ##environment location: D:\XZY\RJ\conda\envs\python38added / updated specs:- mpeg_encodeThe following packages will be downloaded:package                    |            build---------------------------|-----------------mpeg_encode-1              |                0          78 KB  schrodinger------------------------------------------------------------Total:          78 KBThe following NEW packages will be INSTALLED:mpeg_encode        schrodinger/win-64::mpeg_encode-1-0The following packages will be UPDATED:ca-certificates    conda-forge::ca-certificates-2023.11.~ --> pkgs/main::ca-certificates-2023.12.12-haa95532_0Proceed ([y]/n)? yDownloading and Extracting PackagesPreparing transaction: done
Verifying transaction: done
Executing transaction: done(python38) D:\XZY\RJ\Pymol>conda install numpy
Collecting package metadata (current_repodata.json): done
Solving environment: done==> WARNING: A newer version of conda exists. <==current version: 23.7.4latest version: 23.11.0Please update conda by running$ conda update -n base -c defaults condaOr to minimize the number of packages updated during conda update useconda install conda=23.11.0# All requested packages already installed.(python38) D:\XZY\RJ\Pymol>pip install numpy    #检查一下numpy组件有无安装，pip install和conda install 都可以试一下，虽然我不知道区别
Requirement already satisfied: numpy in d:\xzy\rj\conda\envs\python38\lib\site-packages (1.24.3)(python38) D:\XZY\RJ\Pymol>pip install mkl      #检查mkl有无安装
Requirement already satisfied: mkl in d:\xzy\rj\conda\envs\python38\lib\site-packages (2024.0.0)
Requirement already satisfied: intel-openmp==2024.* in d:\xzy\rj\conda\envs\python38\lib\site-packages (from mkl) (2024.0.2)
Requirement already satisfied: tbb==2021.* in d:\xzy\rj\conda\envs\python38\lib\site-packages (from mkl) (2021.11.0)(python38) D:\XZY\RJ\Pymol> python -m pip install pmw   #检查pmw有无安装，这三个组件对于pymol来说是必装的，如果要导出动画，那么上面的ffmpeg也要检查安装
Requirement already satisfied: pmw in d:\xzy\rj\conda\envs\python38\lib\site-packages (2.0.1)

至此，无法导出动画的问题就已解决，可能还是和安装方法有一定关系，我对象不是用的conda环境安装，那个方法就好像会给他把所有组件都装上了，就没有出现ffmpeg编码器不在的情况。

最后，如果需要创建Pymol的快捷打开方式，是在你安装anaconda的文件夹下-envs-python38-scripts-pymol.exe，我之前喜欢直接在conda的文件夹底下下载Pymol，那他就在canda的scripts能找到