Add support for python < 3.9

flake8_unused_fixtures.py

@@ -1,8 +1,14 @@
 import ast
+import sys
 from typing import Any, Generator, List, Tuple, Type, Union
 
 import pkg_resources
 
+if sys.version_info >= (3, 9):
+    from ast import unparse
+else:
+    from astunparse import unparse
+
 MSG = "FUF100 fixture <{}> not used"
 
 
@@ -33,7 +39,7 @@ def _check_for_unused_fixtures(
             all_fixture_names = [
                 arg.arg for arg in node.args.args if arg.arg not in skip_fixtures
             ]
-            body_as_str = ast.unparse(node.body)
+            body_as_str = unparse(node.body)
             for fixture_name, fixture in zip(all_fixture_names, node.args.args):
                 if fixture_name not in body_as_str:
                     self.problems.append(

pyproject.toml

@@ -4,26 +4,29 @@ version = "0.1.1"
 description = "Warn about unnecesary fixtures in tests definition."
 authors = ["Marcin Binkowski <binq661@gmail.com>"]
 repository = "https://github.com/MarcinBinkowski/flake8_unused_fixtures"
-license = "BSD-2-Clause"
+readme = "README.md"
+license = "BSD-3-Clause"
 keywords = ["flake8", "lint"]
 classifiers=[
     "Intended Audience :: Developers",
     "Environment :: Console",
-    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python",
     "Operating System :: OS Independent",
     "License :: OSI Approved :: BSD License",
 ]
 
 [tool.poetry.dependencies]
-python = "^3.9"
-astpretty = "^3.0.0"
+python = "^3.8"
 flake8 = "^5.0.4"
+astunparse = "^1.6.3"
 
 [tool.poetry.dev-dependencies]
 black = "^22.6.0"
 isort = "^5.10.1"
 pytest = "^7.1.2"
 ipdb = "^0.13.9"
+astpretty = "^3.0.0"
+
 
 [tool.isort]
 profile = "black"