Migrate to pyproject.toml

Author: cunla

pyproject.toml

@@ -52,6 +52,7 @@ repository = "https://github.com/stefankoegl/python-json-pointer"
 
 [tool.poetry.dependencies]
 python = "^3.7"
+importlib-metadata = { version = "^4.8.1", markers = "python_version<3.8" }
 
 [tool.poetry.group.dev.dependencies]
 coverage = "^7"
@@ -62,5 +63,12 @@ flake8-pyproject = { version = "^1.2.3", python = ">=3.8.1" }
 max-line-length = 120
 exclude = [
     ".git",
-    ".tox", "dist", "doc", "*egg", "build", ".venv", ".github", "__pycache__",
+    ".tox",
+    "dist",
+    "doc",
+    "*egg",
+    "build",
+    ".venv",
+    ".github",
+    "__pycache__",
 ]