Error 401 / Error running sync command: object of type 'NoneType' has no len()

[robinm0]

Confirmation

• I have read the README.md on the project homepage
• I have checked if identical issue already exists
• I have tried downgrading to find version that can be used as a workaround

The problem

Fillms and Tv programmes are scanned; after ratings are read, fails with:

Updated liked list in 0.0 seconds
ERROR Error during [redacted] account access: (401) unauthorized;

Steps to reproduce the behavior

1. Updated to 0.29.2
2. ran plextraktsync sync
3. Exited with error 401

Error trace / logs

2024-02-25 17:03:08,059 ERROR[PlexTraktSync]:Error during [redacted] account access: (401) unauthorized; https://plex.tv/api/v2/user <?xml version="1.0" encoding="UTF-8"?> <errors>   <error code="1001" message="User could not be authenticated" status="401"/> </errors> 
2024-02-25 17:03:08,062 ERROR[PlexTraktSync]:object of type 'NoneType' has no len()
Traceback (most recent call last):
  File "/Users/plex/.local/pipx/venvs/plextraktsync/lib/python3.11/site-packages/plextraktsync/cli.py", line 26, in wrap
    cmd(*args, **kwargs)
  File "/Users/plex/.local/pipx/venvs/plextraktsync/lib/python3.11/site-packages/plextraktsync/commands/sync.py", line 68, in sync
    runner.sync(walker=w, dry_run=config.dry_run)
  File "/Users/plex/.local/pipx/venvs/plextraktsync/lib/python3.11/site-packages/plextraktsync/sync/Sync.py", line 105, in sync
    if walker.config.walk_watchlist and self.sync_wl:
                                        ^^^^^^^^^^^^
  File "/opt/homebrew/Cellar/python@3.11/3.11.3/Frameworks/Python.framework/Versions/3.11/lib/python3.11/functools.py", line 1001, in __get__
    val = self.func(instance)
          ^^^^^^^^^^^^^^^^^^^
  File "/Users/plex/.local/pipx/venvs/plextraktsync/lib/python3.11/site-packages/plextraktsync/sync/Sync.py", line 35, in sync_wl
    return self.config.sync_wl and len(self.plex_wl) > 0
                                   ^^^^^^^^^^^^^^^^^
  File "/Users/plex/.local/pipx/venvs/plextraktsync/lib/python3.11/site-packages/plextraktsync/plex/PlexWatchList.py", line 21, in __len__
    return len(self.watchlist)
           ^^^^^^^^^^^^^^^^^^^
TypeError: object of type 'NoneType' has no len()

Expected behavior

Normal end of run.

Inspect of problematic items

No response

Workarounds

No response

Install method

pipx

Config file contents

cache:
  path: /Users/plex/Library/Caches/PlexTraktSync/trakt_cache
excluded-libraries:
- Private
- Family Holidays
config:
  dotenv_override: true
plex:
  timeout: 30
logging:
  append: true
  console_time: false
  debug: false
  filename: plextraktsync.log
  filter_loggers: null
  filter: null
sync:
  rating_priority: plex
  plex_to_trakt:
    collection: true
    clear_collected: false
    ratings: true
    watched_status: true
    watchlist: true
  trakt_to_plex:
    liked_lists: true
    ratings: true
    watched_status: true
    watchlist: true
    watchlist_as_playlist: false
watch:
  add_collection: false
  remove_collection: false
  scrobble_threshold: 80
  username_filter: true
  media_progressbar: true
xbmc-providers:
  movies: imdb
  shows: tvdb

Version

0.29.2

Python Version

3.11.3

Plex Server Version

1.40.0.7998

Operating System and Version

macOS-14.3.1

[robinm0]

Problem appears related to 'watchlist' option:

[redacted] ~ % plextraktsync sync --sync=watchlist
INFO     PlexTraktSync [0.29.2]                                                 
INFO     Connecting with url:                                                   
         https://192-168-1-[redacted], timeout 30 seconds                                                  
WARNING  Partial walk, disabling liked lists updating. Liked lists won't update 
         because it needs full library sync.                                    
INFO     Preload shows data                                                     
INFO     Preloaded shows data (0 shows)                                         
WARNING  Running partial library sync. Liked lists won't update because it needs
         full library sync.                                                     
ERROR    Error during [redacted] account access: (401) unauthorized;               
         https://plex.tv/api/v2/user <?xml version="1.0" encoding="UTF-8"?>     
         <errors>   <error code="1001" message="User could not be authenticated"
         status="401"/> </errors>                                               
ERROR    object of type 'NoneType' has no len()                                 

     ╭───────────────── Traceback (most recent call last) 

─────────────────╮
│ /Users/plex/.local/pipx/venvs/plextraktsync/lib/python3.11/site-pac │
│ kages/plextraktsync/cli.py:26 in wrap │
│ │
│ 23 │ │ │ cmd = getattr(module, name) │
│ 24 │ │ │ │
│ 25 │ │ │ try: │
│ ❱ 26 │ │ │ │ cmd(*args, **kwargs) │
│ 27 │ │ │ except EOFError as e: │
│ 28 │ │ │ │ raise ClickException(f"Program requested term │
│ connected: {e}") │
│ 29 │ │ │ except ClickException as e: │
│ │
│ /Users/plex/.local/pipx/venvs/plextraktsync/lib/python3.11/site-pac │
│ kages/plextraktsync/commands/sync.py:68 in sync │
│ │
│ 65 │ │ │ w.print_plan(print=logger.info) │
│ 66 │ │ if dry_run: │
│ 67 │ │ │ logger.info("Enabled dry-run mode: not making actu │
│ ❱ 68 │ │ runner.sync(walker=w, dry_run=config.dry_run) │
│ 69 │
│ │
│ /Users/plex/.local/pipx/venvs/plextraktsync/lib/python3.11/site-pac │
│ kages/plextraktsync/sync/Sync.py:105 in sync │
│ │
│ 102 │ │ │ │ │ with measure_time("Updated liked list"): │
│ 103 │ │ │ │ │ │ trakt_lists.sync() │
│ 104 │ │ │
│ ❱ 105 │ │ if walker.config.walk_watchlist and self.sync_wl: │
│ 106 │ │ │ with measure_time("Updated watchlist"): │
│ 107 │ │ │ │ self.sync_watchlist(walker, dry_run=dry_run) │
│ 108 │
│ │
│ /opt/homebrew/Cellar/python@3.11/3.11.3/Frameworks/Python.framework │
│ /Versions/3.11/lib/python3.11/functools.py:1001 in get │
│ │
│ 998 │ │ │ │ # check if another thread filled cache while │
│ 999 │ │ │ │ val = cache.get(self.attrname, _NOT_FOUND) │
│ 1000 │ │ │ │ if val is _NOT_FOUND: │
│ ❱ 1001 │ │ │ │ │ val = self.func(instance) │
│ 1002 │ │ │ │ │ try: │
│ 1003 │ │ │ │ │ │ cache[self.attrname] = val │
│ 1004 │ │ │ │ │ except TypeError: │
│ │
│ /Users/plex/.local/pipx/venvs/plextraktsync/lib/python3.11/site-pac │
│ kages/plextraktsync/sync/Sync.py:35 in sync_wl │
│ │
│ 32 │ │
│ 33 │ @cached_property │
│ 34 │ def sync_wl(self): │
│ ❱ 35 │ │ return self.config.sync_wl and len(self.plex_wl) > 0 │
│ 36 │ │
│ 37 │ @cached_property │
│ 38 │ def trakt_wl(self): │
│ │
│ /Users/plex/.local/pipx/venvs/plextraktsync/lib/python3.11/site-pac │
│ kages/plextraktsync/plex/PlexWatchList.py:21 in len │
│ │
│ 18 │ │ return iter(self.watchlist) │
│ 19 │ │
│ 20 │ def len(self): │
│ ❱ 21 │ │ return len(self.watchlist) │
│ 22 │ │
│ 23 │ def contains(self, m: Media): │
│ 24 │ │ return m.plex.item.guid in self.guidmap │
╰─────────────────────────────────────────────────────────────────────╯
TypeError: object of type 'NoneType' has no len()
Error: Error running sync command: object of type 'NoneType' has no len()

Options 'movies' and 'shows' end normally.

[Elan Ruusamäe]

edit your post and put terminal output to code blocks

• https://docs.github.com/en/get-started/writing-on-github/working-with-advanced-formatting/creating-and-highlighting-code-blocks

[Elan Ruusamäe]

Seems same error reported here:

• #1838

no info whether this appeared with upgrade (did you try downgrading) or is this new install? have you changed your config recently?

from trace I guess you are using managed account?

[robinm0]

The problem has appeared after upgrade to 0.29.2 from 0.28.12. Last run under that version ended without error. I have not tried downgrading. 'plextraktsync sync' is run from a cron job, with other commands, such as self-update, run manually as and when.

Config has not changed since the installation last year.

Not sure what you mean by managed account. Plex, with Plex Pass, is running on an M1 Mac Mini, on which I also have Handbrake installed. Storage is on 2 Synology diskstations, totalling 14TB, with about 5.7TB currently free.

I have (hopefully) edited my previous post as suggested.

[Elan Ruusamäe]

you need to test downgrade to see if it's code error or something at trakt.tv side has changed. i.e does the old downgraded version still work? try to pin point exact version what caused breakage if that's the case.

[Elan Ruusamäe]

and managed account:

• https://www.google.com/search?q=plex+managed+account

[Elan Ruusamäe]

this still needs edit (scroll to see your whole post):

• #1836 (comment)

[Elan Ruusamäe]

you may try this pr:

• #1844

but in short, seems your plex account token is missing or expired or whatever reason plex.tv is rejecting it:

• PlexTraktSync/plextraktsync/plex/PlexApi.py

  Lines 186 to 188 in bdd8804

   plex_owner_token = CONFIG.get("PLEX_OWNER_TOKEN") 
   plex_account_token = CONFIG.get("PLEX_ACCOUNT_TOKEN") 
   plex_username = CONFIG.get("PLEX_USERNAME") 

plex-login subcommand may help.

[Elan Ruusamäe]

syncing watchlist requires plex account oken, if you can't have it, you can turn off and sync to playlist instead

    # If you prefer to fetch trakt watchlist as a playlist instead of
    # plex watchlist, toggle this to true (is read only if watchlist=true)
    watchlist_as_playlist: true

[robinm0]

Right, now I see that 'managed' account refers to Plex. Thank you.

I have got it running to completion, but it took several attempts using the 'plex-login' option. Initially, all attempts to log-in using the pwd (which hadn't been changed) failed, with either the Plex username or Plex account e-mail address. Eventually, after changing the pwd for the username (me), and some https errors (apparently expected), it connected and wrote details to a .yml file..

I see that you are implementing a friendlier error message for this problem.

Thanks again for your help.