init_py() updates

init_py() installs python packages exclusively from conda-forge whenever possible. Packages from other channels will only be used if they are unavailable on conda-forge.

NEWS.md

@@ -1,5 +1,6 @@
 # dgpsi 2.5.0-9000 (development version)
-- Prediction speed enhanced for small testing data sets by reducing overhead caused by the multi-threading implementation.
+- Prediction speed with `predict()` enhanced for small testing data sets by reducing overhead caused by the multi-threading implementation.
+- The Python environment now installs packages exclusively from conda-forge whenever possible. Packages from other channels will only be used if they are unavailable on conda-forge.
 
 # dgpsi 2.5.0
 - Training times for DGP emulators are now approximately 30%-40% faster.

R/initi_py.R

@@ -155,12 +155,12 @@ install_dgpsi <- function(env_name, py_ver, conda_path, dgpsi_ver, reinsatll = F
     message("Installing the required Python packages ...")
   }
   if (Sys.info()[["sysname"]] == "Darwin" & Sys.info()[["machine"]] == "arm64"){
-    reticulate::conda_install(envname = env_name, packages = c(dgpsi_ver, '"libblas=*=*accelerate"') , conda = conda_path)
+    reticulate::conda_install(envname = env_name, packages = c(dgpsi_ver, '"libblas=*=*accelerate"') , conda = conda_path, forge = TRUE, additional_install_args = c('--strict-channel-priority'))
   } else if (grepl("Intel",benchmarkme::get_cpu()$model_name)){
-    reticulate::conda_install(envname = env_name, packages = c(dgpsi_ver, '"libblas=*=*mkl"') , conda = conda_path)
+    reticulate::conda_install(envname = env_name, packages = c(dgpsi_ver, '"libblas=*=*mkl"') , conda = conda_path, forge = TRUE, additional_install_args = c('--strict-channel-priority') )
     reticulate::conda_install(envname = env_name, packages = c('icc_rt') , channel = c("numba"), conda = conda_path)
   } else {
-    reticulate::conda_install(envname = env_name, packages = c(dgpsi_ver) , conda = conda_path)
+    reticulate::conda_install(envname = env_name, packages = c(dgpsi_ver) , conda = conda_path, forge = TRUE, additional_install_args = c('--strict-channel-priority'))
   }
   if (grepl('9000',env_name)) {
     if (reinsatll) {