Repository: ManimCommunity/manim
File: manim/cli/render/commands.py (Python)

Code before:
    elif config.renderer == "webgl":
        try:
            from manim.grpc.impl import frame_server_impl

            server = frame_server_impl.get(file)
            server.start()
            server.wait_for_termination()
        except ModuleNotFoundError:
            console.print(
                "Dependencies for the WebGL render are missing. Run "
                "pip install manim[webgl_renderer] to install them."
            )
            console.print_exception()
    else:
        for SceneClass in scene_classes_from_file(file):
            try:
                scene = SceneClass()
                scene.render()
            except Exception:
                console.print_exception()

    if config.notify_outdated_version:
        manim_info_url = "https://pypi.org/pypi/manim/json"
        warn_prompt = "Cannot check if latest release of manim is installed"
        req_info = {}
        releases = {}
        stable = ""

        try:
            req_info = requests.get(manim_info_url, timeout=3)
            req_info.raise_for_status()
        except requests.exceptions.HTTPError:
            logger.warning(f"HTTP Error: {warn_prompt}")
            raise SystemExit
        except requests.exceptions.ConnectionError:
            logger.warning(f"Connection Error: {warn_prompt}")
            raise SystemExit
        except requests.exceptions.Timeout:
            logger.warning(f"Timeout Error: {warn_prompt}")
            raise SystemExit
        except Exception:
            logger.warning(f"Something else went wrong: {warn_prompt}")
            raise SystemExit

        try:
            releases = req_info.json()["releases"].keys()
            stable = max(releases)
        except Exception:
            logger.warning(warn_prompt)
            logger.warning(f"Error decoding JSON from {manim_info_url}")
            raise SystemExit

Review comment (suggestion):
Since this is only used in one place, you could just remove the `releases` variable and plug it straight into `max()` to get the stable release.

Code after:
                console.print_exception()
    elif config.renderer == "webgl":
        try:
            from manim.grpc.impl import frame_server_impl

            server = frame_server_impl.get(file)
            server.start()
            server.wait_for_termination()
        except ModuleNotFoundError:
            console.print(
                "Dependencies for the WebGL render are missing. Run "
                "pip install manim[webgl_renderer] to install them."
            )
            console.print_exception()
    else:
        for SceneClass in scene_classes_from_file(file):
            try:
                scene = SceneClass()
                scene.render()
            except Exception:
                console.print_exception()

    if config.notify_outdated_version:
        manim_info_url = "https://pypi.org/pypi/manim/json"
        warn_prompt = "Cannot check if latest release of manim is installed"
        req_info = {}

        try:
            req_info = requests.get(manim_info_url)
            req_info.raise_for_status()
        except requests.exceptions.HTTPError:
            logger.debug(f"HTTP Error: {warn_prompt}")
        except requests.exceptions.ConnectionError:
            logger.debug(f"Connection Error: {warn_prompt}")
        except requests.exceptions.Timeout:
            logger.debug(f"Timed Out: {warn_prompt}")
        except Exception:
            logger.debug(f"Something went wrong: {warn_prompt}")

        try:
            stable = req_info.json()["info"]["version"]

            if stable != __version__:
                console.print(
                    f"You are using manim version [red]v{__version__}[/red], but version [green]v{stable}[/green] is available."
                )
                console.print(
                    "You should consider upgrading via [yellow]pip install -U manim[/yellow]"
                )
        except json.JSONDecodeError:
            logger.debug(warn_prompt)