diff --git a/Lib/codeop.py b/Lib/codeop.py
index 4dd096574bb..96868047cb4 100644
--- a/Lib/codeop.py
+++ b/Lib/codeop.py
@@ -66,7 +66,12 @@ def _maybe_compile(compiler, source, filename, symbol):
                 compiler(source + "\n", filename, symbol)
                 return None
             except SyntaxError as e:
-                if "incomplete input" in str(e):
+                # XXX: RustPython; support multiline definitions in REPL
+                # See also: https://github.com/RustPython/RustPython/pull/5743
+                strerr = str(e)
+                if source.endswith(":") and "expected an indented block" in strerr:
+                    return None
+                elif "incomplete input" in str(e):
                     return None
                 # fallthrough
 
diff --git a/src/shell.rs b/src/shell.rs
index f733e03ddc4..cbe2c9efe0f 100644
--- a/src/shell.rs
+++ b/src/shell.rs
@@ -49,13 +49,16 @@ fn shell_exec(
 
             let bad_error = match err {
                 CompileError::Parse(ref p) => {
-                    if matches!(
-                        p.error,
-                        ParseErrorType::Lexical(LexicalErrorType::IndentationError)
-                    ) {
-                        continuing // && p.location.is_some()
-                    } else {
-                        true // !matches!(p, ParseErrorType::UnrecognizedToken(Tok::Dedent, _))
+                    match &p.error {
+                        ParseErrorType::Lexical(LexicalErrorType::IndentationError) => continuing, // && p.location.is_some()
+                        ParseErrorType::OtherError(msg) => {
+                            if msg.starts_with("Expected an indented block") {
+                                continuing
+                            } else {
+                                true
+                            }
+                        }
+                        _ => true, // !matches!(p, ParseErrorType::UnrecognizedToken(Tok::Dedent, _))
                     }
                 }
                 _ => true, // It is a bad error for everything else