Repository: yt-dlp/yt-dlp
File: yt_dlp/extractor/youtube.py (Python)

Code before:
                    count = 0
                    for count, entry in enumerate(extract_thread(continuation_renderer.get('contents') or {})):
                        yield entry
                    continuation = self._extract_continuation(continuation_renderer)
                    if count == 0:
                        if not parent:
                            self.report_warning('No comments received - assuming end of comments')
                        continuation = None
                    break

    @staticmethod
    def _generate_comment_continuation(video_id):
        """
        Generates initial comment section continuation token from given video id
        """
        b64_vid_id = base64.b64encode(bytes(video_id.encode('utf-8')))
        parts = ('Eg0SCw==', b64_vid_id, 'GAYyJyIRIgs=', b64_vid_id, 'MAB4AjAAQhBjb21tZW50cy1zZWN0aW9u')
        new_continuation_intlist = list(itertools.chain.from_iterable(
            [bytes_to_intlist(base64.b64decode(part)) for part in parts]))
        return base64.b64encode(intlist_to_bytes(new_continuation_intlist)).decode('utf-8')

    def _get_comments(self, ytcfg, video_id, contents, webpage):
        """Entry for comment extraction"""
        def _real_comment_extract(contents):
            renderer = next(
                filter(lambda x: x.get('sectionIdentifier') == 'comment-item-section', traverse_obj(contents, (..., 'itemSectionRenderer'), default={})), None)
            yield from self._comment_entries(renderer, ytcfg, video_id)

        max_comments = int_or_none(self._configuration_arg('max_comments', [''])[0])
        # Force English regardless of account setting to prevent parsing issues
        # See: https://github.com/yt-dlp/yt-dlp/issues/532
        ytcfg = copy.deepcopy(ytcfg)
        traverse_obj(
            ytcfg, ('INNERTUBE_CONTEXT', 'client'), expected_type=dict, default={})['hl'] = 'en'
        return itertools.islice(_real_comment_extract(contents), 0, max_comments)

    @staticmethod
    def _get_checkok_params():
        return {'contentCheckOk': True, 'racyCheckOk': True}

    @classmethod
    def _generate_player_context(cls, sts=None):
        context = {
            'html5Preference': 'HTML5_PREF_WANTS',
        }
        if sts is not None:
            context['signatureTimestamp'] = sts
        return {
            'playbackContext': {
                'contentPlaybackContext': context
            },

Review comment (suggestion):
```suggestion
            renderer = next(filter(
                lambda x: x.get('sectionIdentifier') == 'comment-item-section',
                traverse_obj(contents, (..., 'itemSectionRenderer'), default={})), None)
```
or, maybe just this since there isn't much point in using filter if u have to make a lambda
```suggestion
            renderer = next((
                item for item in traverse_obj(contents, (..., 'itemSectionRenderer'), default={})
                if item.get('sectionIdentifier') == 'comment-item-section'), None)
```

Code after:
                    count = 0
                    for count, entry in enumerate(extract_thread(continuation_renderer.get('contents') or {})):
                        yield entry
                    continuation = self._extract_continuation(continuation_renderer)
                    if count == 0:
                        if not parent:
                            self.report_warning('No comments received - assuming end of comments')
                        continuation = None
                    break

    @staticmethod
    def _generate_comment_continuation(video_id):
        """
        Generates initial comment section continuation token from given video id
        """
        b64_vid_id = base64.b64encode(bytes(video_id.encode('utf-8')))
        parts = ('Eg0SCw==', b64_vid_id, 'GAYyJyIRIgs=', b64_vid_id, 'MAB4AjAAQhBjb21tZW50cy1zZWN0aW9u')
        new_continuation_intlist = list(itertools.chain.from_iterable(
            [bytes_to_intlist(base64.b64decode(part)) for part in parts]))
        return base64.b64encode(intlist_to_bytes(new_continuation_intlist)).decode('utf-8')

    def _get_comments(self, ytcfg, video_id, contents, webpage):
        """Entry for comment extraction"""
        def _real_comment_extract(contents):
            renderer = next((
                item for item in traverse_obj(contents, (..., 'itemSectionRenderer'), default={})
                if item.get('sectionIdentifier') == 'comment-item-section'), None)
            yield from self._comment_entries(renderer, ytcfg, video_id)

        max_comments = int_or_none(self._configuration_arg('max_comments', [''])[0])
        # Force English regardless of account setting to prevent parsing issues
        # See: https://github.com/yt-dlp/yt-dlp/issues/532
        ytcfg = copy.deepcopy(ytcfg)
        traverse_obj(
            ytcfg, ('INNERTUBE_CONTEXT', 'client'), expected_type=dict, default={})['hl'] = 'en'
        return itertools.islice(_real_comment_extract(contents), 0, max_comments)

    @staticmethod
    def _get_checkok_params():
        return {'contentCheckOk': True, 'racyCheckOk': True}

    @classmethod
    def _generate_player_context(cls, sts=None):
        context = {
            'html5Preference': 'HTML5_PREF_WANTS',
        }
        if sts is not None:
            context['signatureTimestamp'] = sts
        return {
            'playbackContext': {
                'contentPlaybackContext': context