Guardian scheduled download failing

[nickd]

For the last few days the recipe for the Guardian (UK, English) has been failing on a scheduled download. On each occasion, I have successfully made a manual download subsequently.

I've pasted the job log below. Anyone got any ideas?

Fetch news from The Guardian / The Observer
Resolved conversion options
calibre version: 0.7.46
{'asciiize': False,
 'author_sort': None,
 'authors': None,
 'base_font_size': 0,
 'book_producer': None,
 'change_justification': 'original',
 'chapter': None,
 'chapter_mark': 'pagebreak',
 'comments': None,
 'cover': None,
 'debug_pipeline': None,
 'dehyphenate': True,
 'delete_blank_paragraphs': True,
 'disable_font_rescaling': False,
 'dont_compress': False,
 'dont_download_recipe': False,
 'enable_heuristics': False,
 'extra_css': None,
 'fix_indents': True,
 'font_size_mapping': None,
 'format_scene_breaks': True,
 'html_unwrap_factor': 0.4,
 'input_encoding': None,
 'input_profile': <calibre.customize.profiles.InputProfile object at 0x04451B50>,
 'insert_blank_line': False,
 'insert_metadata': False,
 'isbn': None,
 'italicize_common_cases': True,
 'keep_ligatures': False,
 'language': None,
 'level1_toc': None,
 'level2_toc': None,
 'level3_toc': None,
 'line_height': 0,
 'linearize_tables': False,
 'lrf': False,
 'margin_bottom': 5.0,
 'margin_left': 5.0,
 'margin_right': 5.0,
 'margin_top': 5.0,
 'markup_chapter_headings': True,
 'max_toc_links': 50,
 'minimum_line_height': 120.0,
 'mobi_ignore_margins': False,
 'no_chapters_in_toc': False,
 'no_inline_navbars': True,
 'no_inline_toc': False,
 'output_profile': <calibre.customize.profiles.KindleOutput object at 0x04451E70>,
 'page_breaks_before': None,
 'password': None,
 'personal_doc': '[PDOC]',
 'prefer_author_sort': False,
 'prefer_metadata_cover': False,
 'pretty_print': False,
 'pubdate': None,
 'publisher': None,
 'rating': None,
 'read_metadata_from_opf': None,
 'remove_first_image': False,
 'remove_paragraph_spacing': False,
 'remove_paragraph_spacing_indent_size': 1.5,
 'renumber_headings': True,
 'replace_scene_breaks': '',
 'rescale_images': False,
 'series': None,
 'series_index': None,
 'smarten_punctuation': False,
 'sr1_replace': '',
 'sr1_search': '',
 'sr2_replace': '',
 'sr2_search': '',
 'sr3_replace': '',
 'sr3_search': '',
 'tags': None,
 'test': False,
 'timestamp': None,
 'title': None,
 'title_sort': None,
 'toc_filter': None,
 'toc_threshold': 6,
 'toc_title': None,
 'unwrap_lines': True,
 'use_auto_toc': False,
 'username': None,
 'verbose': 2}
InputFormatPlugin: Recipe Input running
Python function terminated unexpectedly
   (Error Code: 1)
Traceback (most recent call last):
  File "site.py", line 103, in main
  File "site.py", line 85, in run_entry_point
  File "site-packages\calibre\utils\ipc\worker.py", line 110, in main
  File "site-packages\calibre\gui2\convert\gui_conversion.py", line 25, in gui_convert
  File "site-packages\calibre\ebooks\conversion\plumber.py", line 904, in run
  File "site-packages\calibre\customize\conversion.py", line 204, in __call__
  File "site-packages\calibre\web\feeds\input.py", line 105, in convert
  File "site-packages\calibre\web\feeds\news.py", line 734, in download
  File "site-packages\calibre\web\feeds\news.py", line 876, in build_index
  File "site-packages\calibre\web\feeds\news.py", line 1303, in parse_feeds
  File "site-packages\calibre\web\feeds\news.py", line 351, in get_feeds
NotImplementedError

[kovidgoyal]

I suggest updating to 0.7.50 it looks like calibre is sometimes failing to download the latest version of the recipe causing this error. 0.7.50 comes with the latest version.

[nickd]

Thanks, Kovid - that seems to have done the job.