Correctly handle trailing commas that are inside a line's leading non-nested parens...

[etc/vim.git] / docs / the_black_code_style / future_style.md

diff --git a/docs/the_black_code_style/future_style.md b/docs/the_black_code_style/future_style.md
index a17d9a1067346e1c3568aea4187b30ae4d8be416..17b7eef092f0179f53401e4521fb0e4bc214d0cc 100644 (file)
--- a/docs/the_black_code_style/future_style.md
+++ b/docs/the_black_code_style/future_style.md
@@ -23,10 +23,10 @@ So _Black_ will eventually format it like this:
 
 ```py3
 with \
-     make_context_manager(1) as cm1, \
-     make_context_manager(2) as cm2, \
-     make_context_manager(3) as cm3, \
-     make_context_manager(4) as cm4 \
+     make_context_manager1() as cm1, \
+     make_context_manager2() as cm2, \
+     make_context_manager3() as cm3, \
+     make_context_manager4() as cm4 \
 :
     ...  # backslashes and an ugly stranded colon
 ```
@@ -40,10 +40,10 @@ following way:
 
 ```python
 with contextlib.ExitStack() as exit_stack:
-    cm1 = exit_stack.enter_context(make_context_manager(1))
-    cm2 = exit_stack.enter_context(make_context_manager(2))
-    cm3 = exit_stack.enter_context(make_context_manager(3))
-    cm4 = exit_stack.enter_context(make_context_manager(4))
+    cm1 = exit_stack.enter_context(make_context_manager1())
+    cm2 = exit_stack.enter_context(make_context_manager2())
+    cm3 = exit_stack.enter_context(make_context_manager3())
+    cm4 = exit_stack.enter_context(make_context_manager4())
     ...
 ```
 
@@ -63,26 +63,47 @@ limit. Line continuation backslashes are converted into parenthesized strings.
 Unnecessary parentheses are stripped. The stability and status of this feature is
 tracked in [this issue](https://github.com/psf/black/issues/2188).
 
-### Removing newlines in the beginning of code blocks
+### Improved empty line management
 
-_Black_ will remove newlines in the beginning of new code blocks, i.e. when the
-indentation level is increased. For example:
+1.  _Black_ will remove newlines in the beginning of new code blocks, i.e. when the
+    indentation level is increased. For example:
 
-```python
-def my_func():
+    ```python
+    def my_func():
 
-    print("The line above me will be deleted!")
-```
+        print("The line above me will be deleted!")
+    ```
 
-will be changed to:
+    will be changed to:
+
+    ```python
+    def my_func():
+        print("The line above me will be deleted!")
+    ```
+
+    This new feature will be applied to **all code blocks**: `def`, `class`, `if`,
+    `for`, `while`, `with`, `case` and `match`.
+
+2.  _Black_ will enforce empty lines before classes and functions with leading comments.
+    For example:
+
+    ```python
+    some_var = 1
+    # Leading sticky comment
+    def my_func():
+        ...
+    ```
+
+    will be changed to:
+
+    ```python
+    some_var = 1
 
-```python
-def my_func():
-    print("The line above me will be deleted!")
-```
 
-This new feature will be applied to **all code blocks**: `def`, `class`, `if`, `for`,
-`while`, `with`, `case` and `match`.
+    # Leading sticky comment
+    def my_func():
+        ...
+    ```
 
 ### Improved parentheses management