blocks|key|4318930|text|我注意到.RProfile中的技术"use_python(+'path')“和Sys.setenv(RETICULATE_PYTHON+=‘path’)对我都不起作用(当然，我确信它肯定对其他人也有效)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4318931|在任何情况下，终端处的线路，|4318932|which+-a+python+python3|code-block|syntax|javascript|4318933|我确实生成了两个路径可供选择(一个用于python2，另一个用于安装在mac上的python3+)，这样我就可以在我的主目录中创建一个".Renviron“文件，其中包含以下单行：|4318934|RETICULATE_PYTHON="/usr/local/bin/python3"|4318935|在我重新启动RStudio之后，library(reticulate)激活了所需的python3，repl_python()打开了一个python3交互窗口，等等。|offset|length|style|CODE|4318936|entityMap^0|0|0|0|0|0|G|J|1D|D|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|W|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|X|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|Y|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|Z|8|@$O|10|P|11|Q|R]|$O|12|P|13|Q|R]]|9|@]|A|$]]|$1|S|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|T|$]]

I observed that neither the technique "use_python('path')" nor the tactic of Sys.setenv(RETICULATE_PYTHON = 'path') in .RProfile worked for me (of course I am sure it must have worked for others.)

In any case the line at terminal,

<pre><code>which -a python python3
</code></pre>

did produce two paths to choose from (one for python2 and one for python3 installed on my mac), so then I was able to create a ".Renviron" file in my home directory with this single line in it:

<pre><code>RETICULATE_PYTHON="/usr/local/bin/python3"
</code></pre>

After I restarted RStudio, <code>library(reticulate)</code> activates the desired python3, and <code>repl_python()</code> opens a python3 interactive window, etc. etc.

blocks|key|4319001|text|这对我来说很有效：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4319002|Sys.setenv(RETICULATE_PYTHON+=+"/usr/bin/python3")
library(reticulate)|code-block|syntax|javascript|4319003|在第一次使用reticulate之前设置RETICULATE_PYTHON似乎很重要。|4319004|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

It worked for me:

<pre><code>Sys.setenv(RETICULATE_PYTHON = "/usr/bin/python3")
library(reticulate)
</code></pre>

It seems important that you set RETICULATE_PYTHON before you first use reticulate.

blocks|key|4319000|text|在Mac+OSX上，我唯一能做的就是在终端中执行以下命令：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4319001|touch+$HOME/.Renviron|code-block|syntax|javascript|4319002|然后打开它，我使用vim，所以我的命令如下：|4319003|vim+$HOME/.Renviron|4319004|添加以下内容(用于anaconda)：|4319005|RETICULATE_PYTHON="/anaconda3/bin/python"|4319006|否则，在终端中键入：which+python3并输入您的输出路径|offset|length|style|CODE|4319007|RETICULATE_PYTHON="your+path+from+which+python3"|4319008|entityMap^0|0|0|0|0|0|0|A|D|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|Z|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|10|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|11|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|12|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|13|8|@]|9|@]|A|$E|F]]|$1|O|3|P|5|6|7|14|8|@$Q|15|R|16|S|T]]|9|@]|A|$]]|$1|U|3|V|5|D|7|17|8|@]|9|@]|A|$E|F]]|$1|W|3|-4|5|6|7|18|8|@]|9|@]|A|$]]]|X|$]]

The only thing that work for me on Mac OSX, perform the following commands in the terminal:

<pre><code>touch $HOME/.Renviron
</code></pre>

Then open it, I use vim, so my command is then the following:

<pre><code>vim $HOME/.Renviron
</code></pre>

Add the following (for anaconda):

<pre><code>RETICULATE_PYTHON="/anaconda3/bin/python"
</code></pre>

Otherwise, in the terminal type: <code>which python3</code> and enter your output path

<pre><code>RETICULATE_PYTHON="your path from which python3"
</code></pre>

blocks|key|4319048|text|在您希望使用的python环境中安装numpy。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4319049|pip+install+numpy|code-block|syntax|javascript|4319050|我发现网状结构拒绝使用未安装numpy的python版本。|4319051|我通过运行以下命令解决了这个问题：|4319052|library("reticulate")
py_discover_config()|4319053|Reticulate跳过了列出的前两个版本的python，并使用了第三个版本。我注意到它打印出了numpy版本，所以它可能是在寻找它作为一个要求。在docs中没有提到，应该将其作为常见问题添加。|4319054|entityMap|0|LINK|mutability|MUTABLE|url|https://rstudio.github.io/reticulate/articles/versions.html^0|I|5|0|0|E|5|0|0|0|1C|5|22|4|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@$9|11|A|12|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|13|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|14|8|@$9|15|A|16|B|C]]|D|@]|E|$]]|$1|M|3|N|5|6|7|17|8|@]|D|@]|E|$]]|$1|O|3|P|5|H|7|18|8|@]|D|@]|E|$I|J]]|$1|Q|3|R|5|6|7|19|8|@$9|1A|A|1B|B|C]]|D|@$9|1C|A|1D|1|1E]]|E|$]]|$1|S|3|-4|5|6|7|1F|8|@]|D|@]|E|$]]]|T|$U|$5|V|W|X|E|$Y|Z]]]]

Install <code>numpy</code> in the python environment you wish to use.
<pre><code>pip install numpy
</code></pre>
I found that Reticulate refuses to use a version of python that does not have <code>numpy</code> installed.
I figured this out by running:
<pre><code>library(&quot;reticulate&quot;)
py_discover_config()
</code></pre>
Reticulate skipped the first two version of python listed and used the third. I noticed it printed out the <code>numpy</code> version so it was probably looking for it as a requirement. It is not mentioned in the <a href="https://rstudio.github.io/reticulate/articles/versions.html" rel="nofollow noreferrer">docs</a> and should probably be added as a common problem.

blocks|key|4319102|text|对于windows用户，在创建virtualenv+python之后：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|4319103|virtualenv+python|code-block|syntax|javascript|4319104|这适用于使用virtualenv|4319105|Sys.setenv(RETICULATE_PYTHON+=+"python/Scripts/python.exe")
library(reticulate)
py_config()|4319106|编辑:这适用于任何路径，例如|4319107|Sys.setenv(RETICULATE_PYTHON+=+"C:/Users/UserA/Anaconda3/envs/myEnv/python.exe")|4319108|为了避免每次都这样做，可以在RProfile中添加Sys.setenv行：|4319109|file.edit(file.path("~",+".Rprofile"))
file.edit(".Rprofile")|4319110|entityMap|0|LINK|mutability|MUTABLE|url|https://support.rstudio.com/hc/en-us/articles/360023654474-Installing-and-Configuring-Python-with-RStudio^0|F|H|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|12|8|@]|9|@$A|13|B|14|1|15]]|C|$]]|$1|D|3|E|5|F|7|16|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|17|8|@]|9|@]|C|$]]|$1|K|3|L|5|F|7|18|8|@]|9|@]|C|$G|H]]|$1|M|3|N|5|6|7|19|8|@]|9|@]|C|$]]|$1|O|3|P|5|F|7|1A|8|@]|9|@]|C|$G|H]]|$1|Q|3|R|5|6|7|1B|8|@]|9|@]|C|$]]|$1|S|3|T|5|F|7|1C|8|@]|9|@]|C|$G|H]]|$1|U|3|-4|5|6|7|1D|8|@]|9|@]|C|$]]]|V|$W|$5|X|Y|Z|C|$10|11]]]]

For windows users, after creating a <a href="https://support.rstudio.com/hc/en-us/articles/360023654474-Installing-and-Configuring-Python-with-RStudio" rel="nofollow noreferrer">virtualenv python</a> :
<pre><code>virtualenv python
</code></pre>
this worked to use the virtualenv
<pre><code>Sys.setenv(RETICULATE_PYTHON = &quot;python/Scripts/python.exe&quot;)
library(reticulate)
py_config()
</code></pre>
EDIT:
This works for any path, e.g.
<pre><code>Sys.setenv(RETICULATE_PYTHON = &quot;C:/Users/UserA/Anaconda3/envs/myEnv/python.exe&quot;)
</code></pre>
To avoid having to do it each time, add the Sys.setenv line to RProfile:
<pre><code>file.edit(file.path(&quot;~&quot;, &quot;.Rprofile&quot;))
file.edit(&quot;.Rprofile&quot;)
</code></pre>

blocks|key|4319194|text|您必须发现.exe+python文件的路径，然后在.Renviron文件中指定它。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4319195|最好的方法是为您的项目创建一个conda环境，然后将其指定为您的网状路径。|4319196|library(reticulate)

conda_create("environment+name",+packages+=+c("pandas",+"matplotlib",+"seaborn"),+conda+=+"auto")+#+creates+conda+environment+for+your+project

conda_python("environment+name")+#+returns+the+.exe+python+path+for+your+environment|code-block|syntax|javascript|4319197|将此路径保留为.Renviron文件！！|4319198|要编辑.Renviron文件，请执行以下操作：|4319199|library(usethis)

edit_r_environ()|4319200|然后，将打开.Renviron文件。将.exe路径粘贴到其中，如下所示：|4319201|RETICULATE_PYTHON="YOUR+ENVIRONMENT+PATH/python.exe"|4319202|记住粘贴时使用/而不是"\“。|4319203|重新启动R会话，并使用以下命令检查是否一切正常：|4319204|library(reticulate)

py_config()|4319205|如果一切都是正确的，那么您应该得到如下内容：|4319206|python:您的环境路径/python.exe+libpython:您的环境路径/python39.dll+pythonhome:您的环境路径版本:+3.9.7+(默认，Sep+16+2021，16:59:28)+MSC+v.1916+64位(AMD64)体系结构:64位numpy:您的环境路径\lib\site-packages\numpy+numpy_version:+1.21.2|4319207|在此之后，它应该可以工作:)|4319208|entityMap^0|0|0|0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|16|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|17|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|18|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|19|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|1A|8|@]|9|@]|A|$]]|$1|M|3|N|5|F|7|1B|8|@]|9|@]|A|$G|H]]|$1|O|3|P|5|6|7|1C|8|@]|9|@]|A|$]]|$1|Q|3|R|5|F|7|1D|8|@]|9|@]|A|$G|H]]|$1|S|3|T|5|6|7|1E|8|@]|9|@]|A|$]]|$1|U|3|V|5|6|7|1F|8|@]|9|@]|A|$]]|$1|W|3|X|5|F|7|1G|8|@]|9|@]|A|$G|H]]|$1|Y|3|Z|5|6|7|1H|8|@]|9|@]|A|$]]|$1|10|3|11|5|6|7|1I|8|@]|9|@]|A|$]]|$1|12|3|13|5|6|7|1J|8|@]|9|@]|A|$]]|$1|14|3|-4|5|6|7|1K|8|@]|9|@]|A|$]]]|15|$]]

You have to discover the path to your the .exe python file and then specify it in the .Renviron file.
The best is to create a conda environment to your project and then specify it as your reticulate path.
<pre><code>library(reticulate)

conda_create(&quot;environment name&quot;, packages = c(&quot;pandas&quot;, &quot;matplotlib&quot;, &quot;seaborn&quot;), conda = &quot;auto&quot;) # creates conda environment for your project

conda_python(&quot;environment name&quot;) # returns the .exe python path for your environment
</code></pre>
Keep this path for the .Renviron file!!
To edit the .Renviron file:
<pre><code>library(usethis)

edit_r_environ()
</code></pre>
Then, the .Renviron file will open. Paste the .exe path in it as follows:
<pre><code>RETICULATE_PYTHON=&quot;YOUR ENVIRONMENT PATH/python.exe&quot;
</code></pre>
Remember to paste it with / instead of &quot;\&quot;.
Restart the R session and use the following command to check if everything is right:
<pre><code>library(reticulate)

py_config()
</code></pre>
If everything is right, you should get something like:
python: YOUR ENVIRONMENT PATH/python.exe
libpython: YOUR ENVIRONMENT PATH/python39.dll
pythonhome: YOUR ENVIRONMENT PATH
version: 3.9.7 (default, Sep 16 2021, 16:59:28) [MSC v.1916 64 bit (AMD64)]
Architecture: 64bit
numpy: YOUR ENVIRONMENT PATH\lib\site-packages\numpy
numpy_version: 1.21.2
After this it should work :)

The first lines I run when launching my rstudio session are:
<pre><code>library(reticulate)
use_python(&quot;/usr/local/lib/python3.6/site-packages&quot;)
</code></pre>
However, when I run <code>py_config()</code> it shows as still using the default python 2.7 installation.
This is an issue because I'm unable to import any modules that were installed for python3. Any idea why this isn't working? I followed documentation fairly closely.

Unable to change Python path in reticulate

在启动rstudio会话时，我运行的第一行代码是：library(reticulate)use_python("/usr/local/lib/python3.6/site-packages")但是，当我运行py_config()时，它显示仍然使用默认的Python2.7安装。这是一个问题，因为我无法导入为python3安装的任何模块。你知道为什么这不管用吗？我非常仔细地跟踪文档。

问无法在网格化模式下更改Python路径
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