Automatically instantiate Project.toml

pysr/sr.py

@@ -445,19 +445,22 @@ def pysr(
         from julia import Pkg
 
         Pkg.activate(f"{_escape_filename(julia_project)}")
-        if update:
-            try:
+        try:
+            if update:
                 Pkg.resolve()
-            except RuntimeError as e:
-                raise ImportError(
-                    f"""
+                Pkg.instantiate()
+            else:
+                Pkg.instantiate()
+        except RuntimeError as e:
+            raise ImportError(
+                f"""
 Required dependencies are not installed or built.  Run the following code in the Python REPL:
 
     >>> import pysr
     >>> pysr.install()
-        
+    
 Tried to activate project {julia_project} but failed."""
-                ) from e
+            ) from e
         Main.eval("using SymbolicRegression")
 
         Main.plus = Main.eval("(+)")