style: Fix and enforce formatting (#21)

This commit introduces both pycodestyle and isort tooling to the CI
check pipeline. These tools ensure a consistent code style and import
order across the codebase.

Author: keelerm84

Makefile

@@ -30,6 +30,9 @@ test: install
 lint: #! Run type analysis and linting checks
 lint: install
 	@poetry run mypy ldotel
+	@poetry run isort --check --atomic ldotel
+	@poetry run pycodestyle ldotel
+
 
 #
 # Documentation generation

ldotel/testing/test_tracing.py

@@ -1,14 +1,14 @@
 import pytest
-
-from ldotel.tracing import Hook, HookOptions
-
-from ldclient import Config, LDClient, Context
+from ldclient import Config, Context, LDClient
 from ldclient.integrations.test_data import TestData
-
-from opentelemetry.sdk.trace.export.in_memory_span_exporter import InMemorySpanExporter, SpanExporter
-from opentelemetry.sdk.trace.export import SimpleSpanProcessor
 from opentelemetry.sdk.trace import TracerProvider
-from opentelemetry.trace import set_tracer_provider, get_tracer_provider, Tracer
+from opentelemetry.sdk.trace.export import SimpleSpanProcessor
+from opentelemetry.sdk.trace.export.in_memory_span_exporter import (
+    InMemorySpanExporter, SpanExporter)
+from opentelemetry.trace import (Tracer, get_tracer_provider,
+                                 set_tracer_provider)
+
+from ldotel.tracing import Hook, HookOptions
 
 
 @pytest.fixture

ldotel/tracing.py

@@ -1,10 +1,12 @@
-from ldclient.evaluation import EvaluationDetail
-from ldclient.hook import Hook as LDHook, EvaluationSeriesContext, Metadata
+from dataclasses import dataclass
 
+from ldclient.evaluation import EvaluationDetail
+from ldclient.hook import EvaluationSeriesContext
+from ldclient.hook import Hook as LDHook
+from ldclient.hook import Metadata
 from opentelemetry import trace
-from opentelemetry.trace import Span, set_span_in_context, get_current_span
 from opentelemetry.context import attach, detach
-from dataclasses import dataclass
+from opentelemetry.trace import Span, get_current_span, set_span_in_context
 
 
 @dataclass

pyproject.toml

@@ -36,6 +36,8 @@ pytest = ">=2.8"
 pytest-cov = ">=2.4.0"
 pytest-mypy = "==0.10.3"
 mypy = "==1.13.0"
+pycodestyle = "^2.12.1"
+isort = "^5.13.2"
 
 
 [tool.poetry.group.docs]