Fix linting (#179)

* summoning [skip ci] since another merge follows

.circleci/config.yml

@@ -27,7 +27,7 @@ jobs:
           command: ./scripts/check_versions.sh
       - run:
           name: Lint
-          command: poetry run pylint starknet_devnet test
+          command: ./scripts/lint.sh
       - run:
           name: Compile test contracts
           command: ./scripts/compile_contracts.sh

README.md

@@ -513,13 +513,13 @@ poetry run starknet-devnet
 ### Development - Run in debug mode
 
 ```text
-./scripts/starknet-devnet-debug.sh
+./scripts/starknet_devnet_debug.sh
 ```
 
 ### Development - Lint
 
 ```text
-poetry run pylint starknet_devnet test
+./scripts/lint.sh
 ```
 
 ### Development - Test

scripts/lint.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+set -e
+
+poetry run pylint $(git ls-files '*.py')

test/support/assertions.py

@@ -1,5 +1,7 @@
+"""Utilities for schema validation"""
+
 import json
-from os.path import join, dirname, abspath
+from os.path import join, dirname
 from jsonschema import validate, RefResolver
 
 
@@ -18,5 +20,5 @@ def _load_json_schema(filename):
     relative_path = join("schemas", filename)
     absolute_path = join(dirname(__file__), relative_path)
 
-    with open(absolute_path) as schema_file:
+    with open(absolute_path, encoding="utf-8") as schema_file:
         return json.loads(schema_file.read())