View source: R/install-python.R
install_python | R Documentation |
Download and install Python, using the pyenv. and pyenv-win projects.
install_python(
version = "3.10:latest",
list = FALSE,
force = FALSE,
optimized = TRUE
)
version |
The version of Python to install. |
list |
Boolean; if set, list the set of available Python versions? |
force |
Boolean; force re-installation even if the requested version of Python is already installed? |
optimized |
Boolean; if |
In general, it is recommended that Python virtual environments are created
using the copies of Python installed by install_python()
. For example:
library(reticulate) version <- "3.9.12" install_python(version) virtualenv_create("my-environment", version = version) use_virtualenv("my-environment") # There is also support for a ":latest" suffix to select the latest patch release install_python("3.9:latest") # install latest patch available at python.org # select the latest 3.9.* patch installed locally virtualenv_create("my-environment", version = "3.9:latest")
On macOS and Linux this will build Python from sources, which may take a few minutes. Installation will be faster if some build dependencies are preinstalled. See https://github.com/pyenv/pyenv/wiki#suggested-build-environment for example commands you can run to pre-install system dependencies (requires administrator privileges).
If optimized = TRUE
, (the default) Python is build with:
PYTHON_CONFIGURE_OPTS="--enable-shared --enable-optimizations --with-lto" PYTHON_CFLAGS="-march=native -mtune=native"
If optimized = FALSE
, Python is built with:
PYTHON_CONFIGURE_OPTS=--enable-shared
On Windows, prebuilt installers from https://www.python.org are used.
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