add bracketed paste mode for Python3.13 and above

python_files/normalizeSelection.py

@@ -8,6 +8,7 @@
 import textwrap
 from typing import Iterable
 
+attach_bracket_paste = sys.version_info >= (3, 13)
 
 def split_lines(source):
     """
@@ -279,14 +280,14 @@ def get_next_block_lineno(which_line_next):
         normalized = result["normalized_smart_result"]
         which_line_next = result["which_line_next"]
         if normalized == "deprecated":
-            data = json.dumps({"normalized": normalized})
+            data = json.dumps({"normalized": normalized, "attach_bracket_paste": attach_bracket_paste})
         else:
             data = json.dumps(
-                {"normalized": normalized, "nextBlockLineno": result["which_line_next"]}
+                {"normalized": normalized, "nextBlockLineno": result["which_line_next"], "attach_bracket_paste": attach_bracket_paste}
             )
     else:
         normalized = normalize_lines(contents["code"])
-        data = json.dumps({"normalized": normalized})
+        data = json.dumps({"normalized": normalized, "attach_bracket_paste": attach_bracket_paste })
 
     stdout = sys.stdout if sys.version_info < (3,) else sys.stdout.buffer
     stdout.write(data.encode("utf-8"))

src/client/terminals/codeExecution/helper.ts

@@ -118,6 +118,16 @@ export class CodeExecutionHelper implements ICodeExecutionHelper {
                 const lineOffset = object.nextBlockLineno - activeEditor!.selection.start.line - 1;
                 await this.moveToNextBlock(lineOffset, activeEditor);
             }
+            // For new _pyrepl for Python3.13 and above, we need to send code via bracketed paste mode.
+            if (object.attach_bracket_paste) {
+                // return `\u001b[200~${object.normalized.trim()}\u001b[201~`;
+                let trimmedNormalized = object.normalized.replace(/\n$/, '');
+                if (trimmedNormalized.endsWith(':\n')) {
+                    // In case where statement is unfinished via :, truncate so auto-indentation lands nicely.
+                    trimmedNormalized = trimmedNormalized.replace(/\n$/, '');
+                }
+                return `\u001b[200~${trimmedNormalized}\u001b[201~`;
+            }
 
             return parse(object.normalized);
         } catch (ex) {