From: Łukasz Langa <lukasz@langa.pl>
Date: Wed, 26 Sep 2018 15:26:35 +0000 (-0700)
Subject: Add trailing comma for single `as` imports, too
X-Git-Url: https://git.madduck.net/etc/vim.git/commitdiff_plain/1610fd6bc5d594c4f27698825913d2f791d3ea02?hp=0c5c5374313566dd9047c3e992a3c23a7ea4b8f2

Add trailing comma for single `as` imports, too
---

diff --git a/black.py b/black.py
index 84ae9f1..2eefe11 100644
--- a/black.py
+++ b/black.py
@@ -2329,8 +2329,9 @@ def bracket_split_build_line(
             # Since body is a new indent level, remove spurious leading whitespace.
             normalize_prefix(leaves[0], inside_brackets=True)
             # Ensure a trailing comma when expected.
-            if original.is_import and len(leaves) == 1:
-                leaves.append(Leaf(token.COMMA, ","))
+            if original.is_import:
+                if leaves[-1].type != token.COMMA:
+                    leaves.append(Leaf(token.COMMA, ","))
     # Populate the line
     for leaf in leaves:
         result.append(leaf, preformatted=True)
diff --git a/docs/reference/reference_functions.rst b/docs/reference/reference_functions.rst
index ccea313..dffde25 100644
--- a/docs/reference/reference_functions.rst
+++ b/docs/reference/reference_functions.rst
@@ -79,6 +79,8 @@ Parsing
 Split functions
 ---------------
 
+.. autofunction:: black.bracket_split_build_line
+
 .. autofunction:: black.bracket_split_succeeded_or_raise
 
 .. autofunction:: black.delimiter_split
diff --git a/tests/data/comments2.py b/tests/data/comments2.py
index 32a2ab3..53d4881 100644
--- a/tests/data/comments2.py
+++ b/tests/data/comments2.py
@@ -1,3 +1,10 @@
+from com.my_lovely_company.my_lovely_team.my_lovely_project.my_lovely_component import (
+    MyLovelyCompanyTeamProjectComponent  # NOT DRY
+)
+from com.my_lovely_company.my_lovely_team.my_lovely_project.my_lovely_component import (
+    MyLovelyCompanyTeamProjectComponent as component  # DRY
+)
+
 # Please keep __all__ alphabetized within each category.
 
 __all__ = [
@@ -148,6 +155,13 @@ instruction()
 # output
 
 
+from com.my_lovely_company.my_lovely_team.my_lovely_project.my_lovely_component import (
+    MyLovelyCompanyTeamProjectComponent,  # NOT DRY
+)
+from com.my_lovely_company.my_lovely_team.my_lovely_project.my_lovely_component import (
+    MyLovelyCompanyTeamProjectComponent as component,  # DRY
+)
+
 # Please keep __all__ alphabetized within each category.
 
 __all__ = [
diff --git a/tests/data/comments4.py b/tests/data/comments4.py
index 013684c..c0db5b1 100644
--- a/tests/data/comments4.py
+++ b/tests/data/comments4.py
@@ -1,3 +1,11 @@
+from com.my_lovely_company.my_lovely_team.my_lovely_project.my_lovely_component import (
+    MyLovelyCompanyTeamProjectComponent,  # NOT DRY
+)
+from com.my_lovely_company.my_lovely_team.my_lovely_project.my_lovely_component import (
+    MyLovelyCompanyTeamProjectComponent as component,  # DRY
+)
+
+
 class C:
     @pytest.mark.parametrize(
         ("post_data", "message"),