init warnings before site (#6771)

src/lib.rs

@@ -208,6 +208,12 @@ fn run_rustpython(vm: &VirtualMachine, run_mode: RunMode) -> PyResult<()> {
 
     let scope = vm.new_scope_with_main()?;
 
+    // Initialize warnings module to process sys.warnoptions
+    // _PyWarnings_Init()
+    if vm.import("warnings", 0).is_err() {
+        warn!("Failed to import warnings module");
+    }
+
     // Import site first, before setting sys.path[0]
     // This matches CPython's behavior where site.removeduppaths() runs
     // before sys.path[0] is set, preventing '' from being converted to cwd
@@ -219,12 +225,6 @@ fn run_rustpython(vm: &VirtualMachine, run_mode: RunMode) -> PyResult<()> {
         );
     }
 
-    // Initialize warnings module to process sys.warnoptions
-    // _PyWarnings_Init()
-    if vm.import("warnings", 0).is_err() {
-        warn!("Failed to import warnings module");
-    }
-
     // _PyPathConfig_ComputeSysPath0 - set sys.path[0] after site import
     if !vm.state.config.settings.safe_path {
         let path0: Option<String> = match &run_mode {