fix(statement): coerce amount with comma to float

monopoly/statement.py

@@ -4,6 +4,7 @@
 from functools import cached_property
 
 from pandas import DataFrame
+from pydantic import validator
 from pydantic.dataclasses import dataclass
 
 from monopoly.config import StatementConfig, arbitrary_config
@@ -19,6 +20,12 @@ class Transaction:
     description: str
     amount: float
 
+    @validator("amount", pre=True)
+    def adjust_number_format(cls, value: object) -> object:
+        if isinstance(value, str):
+            return value.replace(",", "")
+        return value
+
 
 @dataclass(config=arbitrary_config)
 class Statement:

pyproject.toml

@@ -28,6 +28,7 @@ pytest = "^7.4.1"
 pytest-xdist = "^3.3.1"
 pysnooper = "^1.2.0"
 google-api-python-client-stubs = "^1.17.0"
+pylint-pydantic = "^0.3.0"
 
 
 [tool.taskipy.tasks]
@@ -46,6 +47,7 @@ disable = [
     "no-member"
 ]
 ignore-paths = ["tests"]
+load-plugins = "pylint_pydantic"
 
 [tool.black]
 line-length = 88

tests/unit/test_transaction_comma.py

@@ -0,0 +1,6 @@
+from monopoly.statement import Transaction
+
+
+def test_transaction_handles_comma():
+    transaction = Transaction("2099-09-10", "foo", "123,123.12")
+    assert transaction.amount == 123123.12