From ea5a295f7055e9a2001581270e85cce8bf345da7 Mon Sep 17 00:00:00 2001
From: unparalleled-js <yingthi@live.com>
Date: Mon, 31 Oct 2022 16:29:06 -0500
Subject: [PATCH] fix: issue with memory

---
 .pre-commit-config.yaml   | 6 +++---
 evm_trace/base.py         | 2 +-
 setup.py                  | 6 +++---
 tests/test_trace_frame.py | 5 +++++
 4 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index b40096a..24efb07 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -10,18 +10,18 @@ repos:
       - id: isort
 
 -   repo: https://github.com/psf/black
-    rev: 22.6.0
+    rev: 22.10.0
     hooks:
       - id: black
         name: black
 
 -   repo: https://gitlab.com/pycqa/flake8
-    rev: 4.0.1
+    rev: 5.0.4
     hooks:
     -   id: flake8
 
 -   repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v0.971
+    rev: v0.982
     hooks:
     -   id: mypy
         additional_dependencies: [types-PyYAML, types-requests]
diff --git a/evm_trace/base.py b/evm_trace/base.py
index 60382b0..d4e1394 100644
--- a/evm_trace/base.py
+++ b/evm_trace/base.py
@@ -16,7 +16,7 @@ class TraceFrame(BaseModel):
     gas_cost: int = Field(alias="gasCost")
     depth: int
     stack: List[HexBytes]
-    memory: List[HexBytes]
+    memory: List[HexBytes] = []
     storage: Dict[HexBytes, HexBytes] = {}
 
 
diff --git a/setup.py b/setup.py
index 1f7638e..011757d 100644
--- a/setup.py
+++ b/setup.py
@@ -11,9 +11,9 @@
         "eth-hash[pysha3]",  # For eth-utils address checksumming
     ],
     "lint": [
-        "black>=22.6.0",  # auto-formatter and linter
-        "mypy>=0.971",  # Static type analyzer
-        "flake8>=4.0.1",  # Style linter
+        "black>=22.10.0",  # auto-formatter and linter
+        "mypy>=0.982",  # Static type analyzer
+        "flake8>=5.0.4",  # Style linter
         "isort>=5.10.1",  # Import sorting linter
     ],
     "release": [  # `release` GitHub Action job uses this
diff --git a/tests/test_trace_frame.py b/tests/test_trace_frame.py
index cd22699..68c6c4f 100644
--- a/tests/test_trace_frame.py
+++ b/tests/test_trace_frame.py
@@ -9,6 +9,11 @@ def test_trace_frame_validation_passes(trace_frame_data):
     assert frame
 
 
+def test_trace_no_memory():
+    raw_frame = {"pc": 0, "op": "PUSH1", "gas": 4732305, "gasCost": 3, "depth": 1, "stack": []}
+    assert TraceFrame(**raw_frame)
+
+
 @pytest.mark.parametrize(
     "test_data",
     (