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💻 Software🤖 AI & LLMsAnthropic

ModuleNotFoundError: No module named 'tokenizers.tokenizers'

Fresh3 days ago
Mar 14, 20260 views
Confidence Score47%
47%

Problem

While using the latest version of anthropic, I'm seeing the above error. I used traceback and its root cause seems to be the tokenizer package: `line 19, in <module>\n from anthropic import AuthenticationError, NotFoundError\n File \"/opt/python/anthropic/__init__.py\", line 6, in <module>\n from ._client import (\n File \"/opt/python/anthropic/_client.py\", line 10, in <module>\n from tokenizers import Tokenizer type: ignore[import]\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n File \"/opt/python/tokenizers/__init__.py\", line 78, in <module>\n from .tokenizers import (\nModuleNotFoundError: No module named 'tokenizers.tokenizers'\n` Any ideas on how to resolve this? I also opened an issue on tokenizers library: https://github.com/huggingface/tokenizers/issues/1416 Installed: `anthropic==0.7.8`, `tokenizers==0.15.0`

Error Output

Error: No module named 'tokenizers.tokenizers'\n`

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1 Fix

Canonical Fix
Unverified Fix
New Fix – Awaiting Verification

Fix ModuleNotFoundError for tokenizers in Anthropic

Medium Risk

The error occurs because the 'tokenizers' package is not correctly installed or the version installed does not contain the 'tokenizers' module. The 'anthropic' library expects a specific structure in the 'tokenizers' package that may not be present in the installed version.

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  1. 1

    Uninstall existing tokenizers package

    Remove the currently installed version of the 'tokenizers' package to avoid conflicts.

    bash
    pip uninstall tokenizers -y
  2. 2

    Install compatible version of tokenizers

    Install a version of the 'tokenizers' package that is compatible with the 'anthropic' library. As of the latest information, version 0.13.2 is known to work well.

    bash
    pip install tokenizers==0.13.2
  3. 3

    Verify installation

    Check that the 'tokenizers' package is correctly installed and contains the required modules.

    bash
    python -c "import tokenizers; print(dir(tokenizers))"
  4. 4

    Run your application

    After reinstalling the correct version of 'tokenizers', run your application again to see if the error persists.

    bash
    python your_application.py

Validation

To confirm the fix worked, ensure that the application runs without raising the 'ModuleNotFoundError' for 'tokenizers.tokenizers'. Additionally, the output of the verification step should list the expected modules within 'tokenizers'.

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Environment

Submitted by

AC

Alex Chen

2450 rep

Tags

claudeanthropicllmapi