Example fetch_public_data.py fails to start: ModuleNotFoundError: No module named 'websockets' in binance

[ppchart]

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Title
Example fetch_public_data.py fails to start: ModuleNotFoundError: No module named 'websockets' in binance

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Describe the bug
When running the simplest example from the README, the program fails due to a missing dependency in the Binance connector — websockets is not found.

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Environment

• OS: Ubuntu (latest)

• Python version:

  • Python 3.8 → installation blocked (requires >= 3.9)
  • Python 3.9 → installation succeeded but example failed

• Installation method:

  pip install -e .[ai,visualization,...]

  (installed with all optional dependencies listed in README)

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To Reproduce

python example/fetch_public_data.py

Actual behavior

ModuleNotFoundError: No module named 'websockets'

Error occurs inside the binance connector module.

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Expected behavior
Example should start without missing dependency errors, fetch some public data, and print/stream results.

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Additional context
It seems websockets is not listed in the project's install_requires or extras_require for Binance usage. Possibly needs to be added to dependencies or documented as a requirement for users running this example.

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[stringer07]

Title Example fetch_public_data.py fails to start: ModuleNotFoundError: No module named 'websockets' in binance

Describe the bug When running the simplest example from the README, the program fails due to a missing dependency in the Binance connector — websockets is not found.

Environment

• OS: Ubuntu (latest)

• Python version:

  • Python 3.8 → installation blocked (requires >= 3.9)
  • Python 3.9 → installation succeeded but example failed

• Installation method:
  pip install -e .[ai,visualization,...]

  (installed with all optional dependencies listed in README)

To Reproduce

python example/fetch_public_data.py
Actual behavior

ModuleNotFoundError: No module named 'websockets'

Error occurs inside the binance connector module.

Expected behavior Example should start without missing dependency errors, fetch some public data, and print/stream results.

Additional context It seems websockets is not listed in the project's install_requires or extras_require for Binance usage. Possibly needs to be added to dependencies or documented as a requirement for users running this example.

You can replace it by from binance import BinanceSocketManager it worked for me