ethereum · wolovim · Sep 14, 2022 · Sep 13, 2022
diff --git a/docs/contracts.rst b/docs/contracts.rst
@@ -646,7 +646,7 @@ Taking the following contract code as an example:
 
     >>> array_contract.functions.getBytes2Value().call()
     [b'b\x00']
-    >>> array_contract.functions.setBytes2Value([b'a']).transact({'gas': 420000, 'gasPrice': Web3.toWei(1, 'gwei')})
+    >>> array_contract.functions.setBytes2Value([b'a']).transact({'gas': 420000, 'gasPrice': Web3.to_wei(1, 'gwei')})
     HexBytes('0xc5377ba25224bd763ceedc0ee455cc14fc57b23dbc6b6409f40a557a009ff5f4')
     >>> array_contract.functions.getBytes2Value().call()
     [b'a\x00']
@@ -1052,7 +1052,7 @@ Event Log Object
     alice, bob = w3.eth.accounts[0], w3.eth.accounts[1]
     assert alice == '0x7E5F4552091A69125d5DfCb7b8C2659029395Bdf', alice
     assert bob == '0x2B5AD5c4795c026514f8317c7a215E218DcCD6cF', bob
-    tx_hash = my_token_contract.constructor(1000000).transact({'from': alice, 'gas': 899000, 'gasPrice': Web3.toWei(1, 'gwei')})
+    tx_hash = my_token_contract.constructor(1000000).transact({'from': alice, 'gas': 899000, 'gasPrice': Web3.to_wei(1, 'gwei')})
     assert tx_hash == HexBytes('0x49e3da72a95e4074a9eaea7b438c73ca154627d317e58abeae914e3769a15044'), tx_hash
     txn_receipt = w3.eth.wait_for_transaction_receipt(tx_hash)
     assert txn_receipt['contractAddress'] == '0xF2E246BB76DF876Cef8b38ae84130F4F55De395b', txn_receipt['contractAddress']
@@ -1061,7 +1061,7 @@ Event Log Object
     total_supply = contract.functions.totalSupply().call()
     decimals = 10 ** 18
     assert total_supply == 1000000 * decimals, total_supply
-    tx_hash = contract.functions.transfer(alice, 10).transact({'gas': 899000, 'gasPrice': Web3.toWei(1, 'gwei')})
+    tx_hash = contract.functions.transfer(alice, 10).transact({'gas': 899000, 'gasPrice': Web3.to_wei(1, 'gwei')})
     tx_receipt = w3.eth.wait_for_transaction_receipt(tx_hash)
 
 .. doctest:: createFilter

diff --git a/docs/examples.rst b/docs/examples.rst
@@ -142,23 +142,23 @@ Web3 can help you convert between denominations.  The following denominations ar
 +--------------+---------------------------------+
 
 Picking up from the previous example, the largest account contained
-3841357360894980500000001 wei. You can use the :meth:`~web3.fromWei` method
+3841357360894980500000001 wei. You can use the :meth:`~web3.from_wei` method
 to convert that balance to ether (or another denomination).
 
 .. code-block:: python
 
-    >>> web3.fromWei(3841357360894980500000001, 'ether')
+    >>> web3.from_wei(3841357360894980500000001, 'ether')
     Decimal('3841357.360894980500000001')
 
-To convert back to wei, you can use the inverse function, :meth:`~web3.toWei`.
+To convert back to wei, you can use the inverse function, :meth:`~web3.to_wei`.
 Note that Python's default floating point precision is insufficient for this
 use case, so it's necessary to cast the value to a
 `Decimal <https://docs.python.org/3/library/decimal.html>`_ if it isn't already.
 
 .. code-block:: python
 
     >>> from decimal import Decimal
-    >>> web3.toWei(Decimal('3841357.360894980500000001'), 'ether')
+    >>> web3.to_wei(Decimal('3841357.360894980500000001'), 'ether')
     3841357360894980500000001
 
 Best practice: If you need to work with multiple currency denominations, default
@@ -167,9 +167,9 @@ wei, then from wei to whatever you need.
 
 .. code-block:: python
 
-    >>> web3.toWei(Decimal('0.000000005'), 'ether')
+    >>> web3.to_wei(Decimal('0.000000005'), 'ether')
     5000000000
-    >>> web3.fromWei(5000000000, 'gwei')
+    >>> web3.from_wei(5000000000, 'gwei')
     Decimal('5')
 
 
@@ -493,7 +493,7 @@ contract which conforms to this standard.
     alice, bob = w3.eth.accounts[0], w3.eth.accounts[1]
     assert alice == '0x7E5F4552091A69125d5DfCb7b8C2659029395Bdf', alice
     assert bob == '0x2B5AD5c4795c026514f8317c7a215E218DcCD6cF', bob
-    tx_hash = factory.constructor(1000000).transact({'from': alice, 'gas': 899000, 'gasPrice': Web3.toWei(1, 'gwei')})
+    tx_hash = factory.constructor(1000000).transact({'from': alice, 'gas': 899000, 'gasPrice': Web3.to_wei(1, 'gwei')})
     assert tx_hash == HexBytes('0x49e3da72a95e4074a9eaea7b438c73ca154627d317e58abeae914e3769a15044'), tx_hash
     txn_receipt = w3.eth.wait_for_transaction_receipt(tx_hash)
     assert txn_receipt['contractAddress'] == '0xF2E246BB76DF876Cef8b38ae84130F4F55De395b', txn_receipt['contractAddress']

diff --git a/docs/gas_price.rst b/docs/gas_price.rst
@@ -48,10 +48,10 @@ returns a higher gas price when the value of the transaction is higher than
     from web3 import Web3
 
     def value_based_gas_price_strategy(web3, transaction_params):
-        if transaction_params['value'] > Web3.toWei(1, 'ether'):
-            return Web3.toWei(20, 'gwei')
+        if transaction_params['value'] > Web3.to_wei(1, 'ether'):
+            return Web3.to_wei(20, 'gwei')
         else:
-            return Web3.toWei(5, 'gwei')
+            return Web3.to_wei(5, 'gwei')
 
 Selecting the gas price strategy
 --------------------------------

diff --git a/docs/overview.rst b/docs/overview.rst
@@ -109,8 +109,8 @@ Address Helpers
 Currency Conversions
 --------------------
 
-- :meth:`Web3.fromWei() <web3.Web3.fromWei>`
-- :meth:`Web3.toWei() <web3.Web3.toWei>`
+- :meth:`Web3.from_wei() <web3.Web3.from_wei>`
+- :meth:`Web3.to_wei() <web3.Web3.to_wei>`
 
 
 Cryptographic Hashing

diff --git a/docs/web3.eth.account.rst b/docs/web3.eth.account.rst
@@ -347,8 +347,8 @@ To sign a transaction locally that will invoke a smart contract:
     ... ).build_transaction({
     ...     'chainId': 1,
     ...     'gas': 70000,
-    ...     'maxFeePerGas': w3.toWei('2', 'gwei'),
-    ...     'maxPriorityFeePerGas': w3.toWei('1', 'gwei'),
+    ...     'maxFeePerGas': w3.to_wei('2', 'gwei'),
+    ...     'maxPriorityFeePerGas': w3.to_wei('1', 'gwei'),
     ...     'nonce': nonce,
     ... })
 

diff --git a/docs/web3.eth.rst b/docs/web3.eth.rst
@@ -850,8 +850,8 @@ The following methods are available on the ``web3.eth`` namespace.
           'from': web3.eth.coinbase,
           'value': 12345,
           'gas': 21000,
-          'maxFeePerGas': web3.toWei(250, 'gwei'),
-          'maxPriorityFeePerGas': web3.toWei(2, 'gwei'),
+          'maxFeePerGas': web3.to_wei(250, 'gwei'),
+          'maxPriorityFeePerGas': web3.to_wei(2, 'gwei'),
         })
         HexBytes('0xe670ec64341771606e55d6b4ca35a1a6b75ee3d5145a99d05921026d1527331')
 
@@ -862,7 +862,7 @@ The following methods are available on the ``web3.eth`` namespace.
           'from': web3.eth.coinbase,
           'value': 12345,
           'gas': 21000,
-          'gasPrice': web3.toWei(50, 'gwei'),
+          'gasPrice': web3.to_wei(50, 'gwei'),
         })
         HexBytes('0xe670ec64341771606e55d6b4ca35a1a6b75ee3d5145a99d05921026d1527331')
 

diff --git a/docs/web3.main.rst b/docs/web3.main.rst
@@ -179,27 +179,27 @@ Encoding and Decoding Helpers
 Currency Conversions
 ~~~~~~~~~~~~~~~~~~~~~
 
-.. py:method:: Web3.toWei(value, currency)
+.. py:method:: Web3.to_wei(value, currency)
 
     Returns the value in the denomination specified by the ``currency`` argument
     converted to wei.
 
 
     .. code-block:: python
 
-        >>> Web3.toWei(1, 'ether')
+        >>> Web3.to_wei(1, 'ether')
         1000000000000000000
 
 
-.. py:method:: Web3.fromWei(value, currency)
+.. py:method:: Web3.from_wei(value, currency)
 
     Returns the value in wei converted to the given currency. The value is returned
     as a ``Decimal`` to ensure precision down to the wei.
 
 
     .. code-block:: python
 
-        >>> Web3.fromWei(1000000000000000000, 'ether')
+        >>> Web3.from_wei(1000000000000000000, 'ether')
         Decimal('1')
 
 

diff --git a/newsfragments/2647.breaking-change.rst b/newsfragments/2647.breaking-change.rst
@@ -0,0 +1 @@
+Snakecase the ``toWei`` and ``fromWei`` methods
diff --git a/tests/core/contracts/test_contract_caller_interface.py b/tests/core/contracts/test_contract_caller_interface.py
@@ -37,8 +37,8 @@ def transaction_dict(w3, address):
     return {
         "from": address,
         "gas": 210000,
-        "maxFeePerGas": w3.toWei(1, "gwei"),
-        "maxPriorityFeePerGas": w3.toWei(1, "gwei"),
+        "maxFeePerGas": w3.to_wei(1, "gwei"),
+        "maxPriorityFeePerGas": w3.to_wei(1, "gwei"),
         "value": 12345,
     }
 

diff --git a/tests/core/middleware/test_transaction_signing.py b/tests/core/middleware/test_transaction_signing.py
@@ -282,7 +282,7 @@ def test_gen_normalized_accounts_type_error(w3):
 @pytest.fixture()
 def fund_account(w3):
     # fund local account
-    tx_value = w3.toWei(10, "ether")
+    tx_value = w3.to_wei(10, "ether")
     for address in (ADDRESS_1, ADDRESS_2):
         w3.eth.send_transaction(
             {"to": address, "from": w3.eth.accounts[0], "gas": 21000, "value": tx_value}

diff --git a/tests/core/tools/pytest_ethereum/test_linker.py b/tests/core/tools/pytest_ethereum/test_linker.py
@@ -70,13 +70,13 @@ def callback_fn(package):
         deploy(
             "Escrow",
             recipient,
-            transaction={"from": sender, "value": w3.toWei("1", "ether")},
+            transaction={"from": sender, "value": w3.to_wei("1", "ether")},
         ),
         run_python(callback_fn),
     )
     escrow_deployer.register_strategy("Escrow", escrow_strategy)
-    assert w3.eth.get_balance(recipient) == w3.toWei("1000000", "ether")
+    assert w3.eth.get_balance(recipient) == w3.to_wei("1000000", "ether")
     linked_escrow_package = escrow_deployer.deploy("Escrow")
     escrow_instance = linked_escrow_package.deployments.get_instance("Escrow")
     assert escrow_instance.functions.sender().call() == sender
-    assert w3.eth.get_balance(recipient) == w3.toWei("1000001", "ether")
+    assert w3.eth.get_balance(recipient) == w3.to_wei("1000001", "ether")
diff --git a/tests/ens/test_get_text.py b/tests/ens/test_get_text.py
@@ -47,8 +47,8 @@ def test_set_text_pass_in_transaction_dict(ens):
         "avatar",
         "example.jpeg",
         transact={
-            "maxFeePerGas": Web3.toWei(100, "gwei"),
-            "maxPriorityFeePerGas": Web3.toWei(100, "gwei"),
+            "maxFeePerGas": Web3.to_wei(100, "gwei"),
+            "maxPriorityFeePerGas": Web3.to_wei(100, "gwei"),
         },
     )
     assert ens.get_text("tester.eth", "url") == "http://example.com"
@@ -120,8 +120,8 @@ async def async_test_set_text_pass_in_transaction_dict(async_ens):
         "avatar",
         "example.jpeg",
         transact={
-            "maxFeePerGas": Web3.toWei(100, "gwei"),
-            "maxPriorityFeePerGas": Web3.toWei(100, "gwei"),
+            "maxFeePerGas": Web3.to_wei(100, "gwei"),
+            "maxPriorityFeePerGas": Web3.to_wei(100, "gwei"),
         },
     )
     assert await async_ens.get_text("tester.eth", "url") == "http://example.com"

diff --git a/tests/integration/test_ethereum_tester.py b/tests/integration/test_ethereum_tester.py
@@ -209,7 +209,7 @@ def unlockable_account(w3, unlockable_account_pw):
         {
             "from": w3.eth.coinbase,
             "to": account,
-            "value": w3.toWei(10, "ether"),
+            "value": w3.to_wei(10, "ether"),
             "gas": 21000,
         }
     )
@@ -242,7 +242,7 @@ def funded_account_for_raw_txn(w3):
         {
             "from": w3.eth.coinbase,
             "to": account,
-            "value": w3.toWei(10, "ether"),
+            "value": w3.to_wei(10, "ether"),
             "gas": 21000,
             "gas_price": 1,
         }
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		Snakecase the ``toWei`` and ``fromWei`` methods