V2 Client authorization fails with 429 error

[DougX71]

Checks

• I have checked that this issue has not already been reported.
• I have confirmed this bug exists on the latest version of pyticktick.

Reproducible example

I am using the same code as provided on the landing page for https://pyticktick.pretzer.io/ but edited to have my username and password:

from pyticktick import Client

client = Client(v2_username="username", v2_password="password")
resp = client.get_batch_v2()

Log output

I:\Inspiron copy\Doug\TickTickAPIUsage>py pytt_get_projects_and_tasks_from_test_account.py
2025-12-15 11:30:32.959 | WARNING  | pyticktick.settings:_get_v1_token:470 - Cannot signon to v1 without `v1_client_id` and `v1_client_secret`
C:\Users\Doug7\AppData\Local\Programs\Python\Python310-32\lib\site-packages\pyticktick\settings.py:471: UserWarning: Cannot signon to v1 without `v1_client_id` and `v1_client_secret`
  warnings.warn(msg, UserWarning, stacklevel=1)
2025-12-15 11:30:33.458 | ERROR    | pyticktick.settings:_v2_signon:359 - Response [429]:

Traceback (most recent call last):
  File "I:\Inspiron copy\Doug\TickTickAPIUsage\pytt_get_projects_and_tasks_from_test_account.py", line 12, in <module>
    client = Client(v2_username="xxx", v2_password="yyy")
  File "C:\Users\Doug7\AppData\Local\Programs\Python\Python310-32\lib\site-packages\pydantic_settings\main.py", line 194, in __init__
    super().__init__(
  File "C:\Users\Doug7\AppData\Local\Programs\Python\Python310-32\lib\site-packages\pydantic\main.py", line 250, in __init__
    validated_self = self.__pydantic_validator__.validate_python(data, self_instance=self)
pydantic_core._pydantic_core.ValidationError: 1 validation error for Client
  Value error, Response [429]:
 [type=value_error, input_value={'v2_username': 'xxx': 'yyy'}, input_type=dict]
    For further information visit https://errors.pydantic.dev/2.12/v/value_error

Issue description

In the log output I have edited my username and password to xxx and yyy respectively for privacy, but I will send the unedited log to the developer.

[sebpretzer]

The code in main actually works, it just has not been published yet, if you want to test it out. I noticed similar behavior when working on updates to this package ~3 weeks ago. Apologies for releasing this to pypi sooner.

I have also started work to override these headers if this issue does happen again: #227

I should be able to wrap this up in the next few days. Once I get these changes in, I will publish 0.3.0.

[DougX71]

Thanks for your prompt reply. I am able to connect to the V1 client and have started using the V1 calls.

[sebpretzer]

Fixed by #227

[sebpretzer]

0.3.0 was just released, test it out, lmk how things work out for you!

If you get blocked by headers again, here is a guide.

If you get blocked by pydantic errors because I cannot keep up with the TickTick API (the most common issue), here is a guide.

Good luck!

[DougX71]

Thanks for the fix, but now I have Pydantic errors. I looked at the guide you provided but it seems to relate to extra fields while I have "Extra inputs are not permitted" errors. I logged this as a new issue. The Python script I sent earlier to you I have left unchanged and can be used to reproduce the error using my test account. This test account has very little data making a list of all projects and tasks to be practical. Doug

…

On Wed, Dec 17, 2025 at 10:40 PM Seb Pretzer ***@***.***> wrote: *sebpretzer* left a comment (sebpretzer/pyticktick#226) <#226 (comment)> 0.3.0 <https://github.com/sebpretzer/pyticktick/releases/tag/0.3.0> was just released, test it out, lmk how things work out for you! If you get blocked by headers again, here is a guide <https://pyticktick.pretzer.io/guides/settings/overriding_outdated_headers/> . If you get blocked by pydantic errors because I cannot keep up with the TickTick API (the most common issue), here is a guide <https://pyticktick.pretzer.io/guides/settings/overriding_models_that_forbid_extra_fields/> . Good luck! — Reply to this email directly, view it on GitHub <#226 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/BAUZJQZZ2EKA4U4A27L2CGD4CIO35AVCNFSM6AAAAACPHNT2NCVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTMNRYGE4TGNJYGQ> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[DougX71]

The new issue is #231.