Resolve #1353: Added support for output format plugin

1 files changed, 22 insertions, 0 deletions

diff --git a/example_isort_formatting_plugin/example_isort_formatting_plugin.py b/example_isort_formatting_plugin/example_isort_formatting_plugin.py
new file mode 100644
index 00000000..ff65412f
--- /dev/null
+++ b/example_isort_formatting_plugin/example_isort_formatting_plugin.py
@@ -0,0 +1,22 @@
+import black
+
+import isort
+
+
+def black_format_import_section(
+    contents: str, extension: str, config: isort.settings.Config
+) -> str:
+    """Formats the given import section using black."""
+    if extension.lower() not in ("pyi", "py"):
+        return contents
+
+    try:
+        return black.format_file_contents(
+            contents,
+            fast=True,
+            mode=black.FileMode(
+                is_pyi=extension.lower() == "pyi", line_length=config.line_length,
+            ),
+        )
+    except black.NothingChanged:
+        return contents