feat: configure tools

- isort
- black
- flake8
- check-manifest

Author: gforcada

.flake8

@@ -0,0 +1,13 @@
+[flake8]
+doctests = 1
+ignore =
+    # black takes care of line length
+    E501,
+    # black takes care of where to break lines
+    W503,
+    # black takes care of spaces within slicing (list[:])
+    E203,
+    # black takes care of spaces after commas
+    E231,
+    # as one has to use self.XX it should not be a problem
+    A003,

pyproject.toml

@@ -44,3 +44,16 @@ test = ["pytest"]
 
 [project.entry-points."flake8.extension"]
 A00 = "flake8_builtins:BuiltinsChecker"
+
+[tool.isort]
+profile = "plone"
+
+[tool.black]
+target-version = ["py38"]
+skip-string-normalization = true
+
+[tool.check-manifest]
+ignore = [
+    ".vscode/*",
+    "venv/*",
+]