[Snyk] Security upgrade web3 from 6.20.4 to 7.15.0

[revan-zhang]

Snyk has created this PR to fix 1 vulnerabilities in the pip dependencies of this project.

Snyk changed the following file(s):

• python/requirements-optional.txt

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[revan-zhang]

✅ Snyk checks have passed. No issues have been found so far.

Status	Scan Engine	Critical	High	Medium	Low	Total (0)
✅	Open Source Security	0	0	0	0	0 issues
✅	Licenses	0	0	0	0	0 issues

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[devin-ai-integration]

Devin Review found 2 potential issues.

View 2 additional findings in Devin Review.

[devin-ai-integration]

🟡 setup.py ethereum extra still requires web3>=4.8, inconsistent with requirements-optional.txt bump to >=7.15.0

The PR updates requirements-optional.txt to web3>=7.15.0, but python/setup.py:30 still specifies "web3>=4.8" in the ethereum extras_require. Users installing via pip install trezor[ethereum] will resolve web3 from setup.py, potentially getting a version different from what requirements-optional.txt mandates. This inconsistency should be resolved by updating setup.py to match.

Prompt for agents

The web3 version requirement was updated in python/requirements-optional.txt to >=7.15.0 but not in python/setup.py line 30, which still has web3>=4.8 in the ethereum extras_require. Update python/setup.py line 30 to change web3>=4.8 to web3>=7.15.0 so both files are consistent. Note that bumping to web3 v7 also requires updating the camelCase web3 API calls in python/src/trezorlib/cli/ethereum.py (see BUG-0002 for details).

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[devin-ai-integration]

🔴 web3 v7 requirement breaks existing code that uses removed camelCase API methods

Bumping the web3 requirement to >=7.15.0 breaks python/src/trezorlib/cli/ethereum.py because web3 v5+ migrated from camelCase to snake_case, and v7 removed the old names entirely. Six call sites will raise AttributeError at runtime:

Affected call sites

• ethereum.py:297: isConnected() → should be is_connected()
• ethereum.py:323: eth.estimateGas() → should be eth.estimate_gas()
• ethereum.py:333: eth.getTransactionCount() → should be eth.get_transaction_count()
• ethereum.py:356: eth.gasPrice → should be eth.gas_price
• ethereum.py:410: eth.sendRawTransaction() → should be eth.send_raw_transaction()
• ethereum.py:156: contract.encodeABI() → should be contract.encode_abi()

Prompt for agents

The web3 requirement was bumped to >=7.15.0 in python/requirements-optional.txt, but the code in python/src/trezorlib/cli/ethereum.py still uses the old camelCase web3 v4 API that was removed in web3 v5+/v7. The following methods need to be updated to their snake_case equivalents:

1. Line 156: contract.encodeABI("transfer", ...) -> contract.encode_abi("transfer", ...)
2. Line 297: _get_web3().isConnected() -> _get_web3().is_connected()
3. Line 323: _get_web3().eth.estimateGas({...}) -> _get_web3().eth.estimate_gas({...})
4. Line 333: _get_web3().eth.getTransactionCount(from_address) -> _get_web3().eth.get_transaction_count(from_address)
5. Line 356: _get_web3().eth.gasPrice -> _get_web3().eth.gas_price
6. Line 410: _get_web3().eth.sendRawTransaction(tx_hex) -> _get_web3().eth.send_raw_transaction(tx_hex)

Additionally, web3 v7 may have other breaking changes (e.g. the contract constructor API, provider configuration) that should be verified by testing the full ethereum CLI workflow.

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