RPC MEV Blocker and fallback switcher (#139)

- Refactor stuff to `eth_defi.provider`
- Add MEV blocking support in the form of `eth_defi.mev_blocker.MEVBlockerProvider`
- Add JSON-RPC fallback switching in the form of `eth_defi.fallback_provider.FallbackProvider`
- Add `HotWallet.create_for_testing`

CHANGELOG.md

@@ -1,7 +1,13 @@
-# 0.21.9
+# 0.22
 
+- Refactor a lot of functionality to a new submodule `eth_defi.provider` 
+- Add MEV blocking support in the form of `eth_defi.mev_blocker.MEVBlockerProvider`
+- Add JSON-RPC fallback switching in the form of `eth_defi.fallback_provider.FallbackProvider`
+- Add `HotWallet.create_for_testing` 
 - Add utility function `get_onchain_price()` to ask on-chain price of a 
   Uniswap v3 pool at any given block number
+- Deprecate `eth_defi.anvil` -> `eth_defi.provider.anvil` 
+- Deprecate `eth_defi.ganache` -> `eth_defi.provider.ganache`
 
 # 0.21.8
 

docs/source/api/core/index.rst

@@ -20,8 +20,6 @@ The core API is built on the top of Web3.py library.
    eth_defi.confirmation
    eth_defi.revert_reason
    eth_defi.hotwallet
-   eth_defi.anvil
-   eth_defi.ganache
    eth_defi.middleware
    eth_defi.tx
    eth_defi.trace

docs/source/api/index.rst

@@ -14,6 +14,7 @@ API documentation
    :maxdepth: 1
 
    core/index
+   provider/index
    usdc/index
    uniswap_v2/index
    uniswap_v3/index

docs/source/api/provider/index.rst

@@ -0,0 +1,24 @@
+JSON-RPC provider API
+---------------------
+
+This submodule offers functionality to connect and enhance robustness of various EVM JSON-RPC API providers..
+
+- Support for test and mainnet fork backends like :py:mod:`eth_defi.provider.anvil` and :py:mod:`eth_defi.provider.ganache`
+
+- `Malicious Extractable Value (MEV) <https://tradingstrategy.ai/glossary/mev>`__ mitigations
+  in :py:mod:`eth_defi.provider.mev_blocker`
+
+- Using multiple JSON-APRC providers and fallback providers in :py:mod:`eth_defi.provider.fallback`
+
+- For the list of available Ethereum, Binance Smart Chain and such API providers please see `ethereumnodes.com <https://ethereumnodes.com>`__
+
+.. autosummary::
+   :toctree: _autosummary_provider
+   :recursive:
+
+   eth_defi.provider.mev_blocker
+   eth_defi.provider.fallback
+   eth_defi.provider.anvil
+   eth_defi.provider.ganache
+   eth_defi.provider.named
+