add lint config

.flake8

@@ -0,0 +1,3 @@
+[flake8]
+max-line-length = 100
+extend-ignore = E221,E501

pyproject.toml

@@ -66,6 +66,10 @@ dependencies = [
 ]
 
 [tool.hatch.envs.lint.scripts]
+lint = [
+    "- flake8 src/lambda_repl",
+    "- pylint src/lambda_repl"
+]
 typecheck = "mypy -p lambda_repl"
 release = [
     "typecheck"
@@ -85,6 +89,9 @@ warn_unused_ignores = true
 warn_return_any = true
 warn_unreachable = true
 
+[tool.pylint]
+max-line-length = 100
+
 [tool.coverage.run]
 source_pkgs = ["lambda_repl"]
 branch = true

src/lambda_repl/__init__.py

@@ -57,7 +57,7 @@ def import_term(self, location: str) -> Term[str] | None:
         module, _, name = location.strip().rpartition(".")
         try:
             term = getattr(import_module(module), name)
-        except Exception as error:
+        except Exception as error:  # pylint: disable=W0718
             self.stdout.write(f"Error while importing: {error}\n")
             return None
         if not isinstance(term, Term):

src/lambda_repl/parsing.py

@@ -55,7 +55,7 @@ def transform_string(self, string: str) -> Term[str]:
             case Token(type="VARIABLE") as name:    # type: ignore
                 return self.VARIABLE(name)          # type: ignore
             case Token() as token:                  # type: ignore
-                raise UnexpectedToken(token, {"VARIABLE",})
+                raise UnexpectedToken(token, {"VARIABLE", })
             case tree:
                 return self.transform(tree)