Do not fail if PythonInR is not installed

1 files changed, 1 insertions, 1 deletions

diff --git a/R/chent.R b/R/chent.R
index b2a1da6..e170307 100644
--- a/R/chent.R
+++ b/R/chent.R
@@ -67,7 +67,7 @@ chent <- R6Class("chent",
       }
 
       if (rdkit) {
-        if(requireNamespace("PythonInR")) {
+        if(requireNamespace("PythonInR", quietly = TRUE)) {
           if (is.null(self$smiles)) {
             stop("RDKit needs a SMILES code")
           } else {