only run on lines starting with using/import to avoid re-running no…

…n-load code

stdlib/REPL/src/REPL.jl

@@ -785,18 +785,26 @@ function eval_with_backend(ast, backend::REPLBackendRef)
     if last(resp)
         err = first(first(first(resp)))
         if err isa ModuleNotFoundError
-            for f in install_package_hooks
-                if f(err.mod)
-                    put!(backend.repl_channel, (ast, 1))
-                    resp = take!(backend.response_channel) # (val, iserr)
-                    break
-                end
-            end
+            handle_install_package_hooks(err.mod, ast, backend)
         end
     end
     return resp
 end
 
+function handle_install_package_hooks(mod, ast, backend)
+    line = string(ast.args[2])
+    # only exercise hooks for lines starting with `using/import` to avoid re-running non-load code
+    if startswith(line, "using") || startswith(line, "import")
+        for f in install_package_hooks
+            if f(mod)
+                put!(backend.repl_channel, (ast, 1))
+                resp = take!(backend.response_channel) # (val, iserr)
+                return
+            end
+        end
+    end
+end
+
 function respond(f, repl, main; pass_empty::Bool = false, suppress_on_semicolon::Bool = true)
     return function do_respond(s::MIState, buf, ok::Bool)
         if !ok