Check and install python packages

Usage

check_python(
  packages,
  envname = NULL,
  conda = "auto",
  force = FALSE,
  pip = TRUE,
  pip_options = character(),
  verbose = TRUE,
  ...
)

Arguments

packages: A character vector, indicating package names which should be installed or removed. Use "<package>==<version>" to request the installation of a specific version of a package.
envname: The name of a conda environment.
conda: The path to a conda executable. Use "auto" to allow scop to automatically find an appropriate conda binary.
force: Whether to force package installation. Default is FALSE.
pip: Whether to use pip for package installation. Default is TRUE, packages are installed from the active conda channels.
pip_options: An optional character vector of additional command line arguments to be passed to pip. Only relevant when pip = TRUE.
verbose: Whether to print the message. Default is TRUE.
...: Other arguments passed to reticulate::conda_install

Examples

check_python(
  packages = c("numpy", "pandas")
)
#> ℹ [2025-09-20 14:01:53] Checking 2 packages in environment: scop_env
#> ℹ [2025-09-20 14:01:54] Retrieving package list for environment: scop_env
#> ℹ [2025-09-20 14:01:56] Found 197 packages installed
#> ✔ [2025-09-20 14:01:56] numpy version: 1.26.4
#> ✔ [2025-09-20 14:01:57] pandas version: 2.0.3

if (FALSE) { # \dontrun{
check_python(
  packages = "numpy==1.26.4",
  envname = "scop_env",
  pip_options = "-i https://pypi.tuna.tsinghua.edu.cn/simple"
)
} # }