Python Version Configuration
译者:徐静
定位Python
一个系统中会有多版本的Python环境，比如conda,virtualenv等
library(reticulate)
scipy <- import('scipy')
scipy$amin(c(1,2,3,7
- 搜寻哪一个环境中有scipy，使用第一个找到该模块的环境。
- 默认首先搜索环境变量中的环境
Providing Hints（提供线索）
有两种方法可以提供关于应该使用哪种版本的Python的提示：
| Function | Description |
|---|---|
| use_python() | Specify the path a specific Python binary. |
| use_virtualenv() | Specify the directory containing a Python virtualenv. |
| use_condaenv() | Specify the name of a Conda environment. |
例子：
library(reticulate)
use_python("/usr/local/bin/python")
use_virtualenv("~/myenv")
use_condaenv("myenv")
use_condaenv可以加载系统变量之外的python环境
use_condaenv(condaenv = "r-nlp", conda = "/opt/anaconda3/bin/conda")
use_virtualenv("~/myenv", required = TRUE)
You can add the required parameter to ensure that the specified version of Python is always used !!!
配置信息
You can use the py_config() function to query for information about the specific version of Python in use as well as a list of other Python versions discovered on the system:
py_config()
You can also use the py_discover_config() function to see what version of Python will be used without actually loading Python:
py_discover_config()
Reference
