diff --git a/ptpython/python_input.py b/ptpython/python_input.py
index d66b5ae..975d3d9 100644
--- a/ptpython/python_input.py
+++ b/ptpython/python_input.py
@@ -347,14 +347,6 @@ def __init__(
             "classic": ClassicPrompt(),
         }
 
-        self.get_input_prompt = lambda: self.all_prompt_styles[
-            self.prompt_style
-        ].in_prompt()
-
-        self.get_output_prompt = lambda: self.all_prompt_styles[
-            self.prompt_style
-        ].out_prompt()
-
         #: Load styles.
         self.code_styles: dict[str, BaseStyle] = get_all_code_styles()
         self.ui_styles = get_all_ui_styles()
@@ -425,6 +417,12 @@ def __init__(
         else:
             self._app = None
 
+    def get_input_prompt(self) -> AnyFormattedText:
+        return self.all_prompt_styles[self.prompt_style].in_prompt()
+
+    def get_output_prompt(self) -> AnyFormattedText:
+        return self.all_prompt_styles[self.prompt_style].out_prompt()
+
     def _accept_handler(self, buff: Buffer) -> bool:
         app = get_app()
         app.exit(result=buff.text)
diff --git a/ptpython/repl.py b/ptpython/repl.py
index bbbd852..ea2d84f 100644
--- a/ptpython/repl.py
+++ b/ptpython/repl.py
@@ -19,7 +19,8 @@
 import types
 import warnings
 from dis import COMPILER_FLAG_NAMES
-from typing import Any, Callable, ContextManager, Iterable
+from pathlib import Path
+from typing import Any, Callable, ContextManager, Iterable, Sequence
 
 from prompt_toolkit.formatted_text import OneStyleAndTextTuple
 from prompt_toolkit.patch_stdout import patch_stdout as patch_stdout_context
@@ -64,7 +65,7 @@ def _has_coroutine_flag(code: types.CodeType) -> bool:
 
 class PythonRepl(PythonInput):
     def __init__(self, *a, **kw) -> None:
-        self._startup_paths = kw.pop("startup_paths", None)
+        self._startup_paths: Sequence[str | Path] | None = kw.pop("startup_paths", None)
         super().__init__(*a, **kw)
         self._load_start_paths()
 
@@ -348,7 +349,7 @@ def _store_eval_result(self, result: object) -> None:
     def get_compiler_flags(self) -> int:
         return super().get_compiler_flags() | PyCF_ALLOW_TOP_LEVEL_AWAIT
 
-    def _compile_with_flags(self, code: str, mode: str):
+    def _compile_with_flags(self, code: str, mode: str) -> Any:
         "Compile code with the right compiler flags."
         return compile(
             code,
@@ -459,13 +460,13 @@ def enter_to_continue() -> None:
 
 
 def embed(
-    globals=None,
-    locals=None,
+    globals: dict[str, Any] | None = None,
+    locals: dict[str, Any] | None = None,
     configure: Callable[[PythonRepl], None] | None = None,
     vi_mode: bool = False,
     history_filename: str | None = None,
     title: str | None = None,
-    startup_paths=None,
+    startup_paths: Sequence[str | Path] | None = None,
     patch_stdout: bool = False,
     return_asyncio_coroutine: bool = False,
 ) -> None:
@@ -494,10 +495,10 @@ def embed(
 
     locals = locals or globals
 
-    def get_globals():
+    def get_globals() -> dict[str, Any]:
         return globals
 
-    def get_locals():
+    def get_locals() -> dict[str, Any]:
         return locals
 
     # Create REPL.