Fix spurious space in parenthesized set expressions

Fixes pytest-dev#7
fkohlgrueber · Mar 15, 2018 · 174fc47 · 174fc47
1 parent e1e8909
commit 174fc47
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diff --git a/README.md b/README.md
@@ -255,6 +255,8 @@ You can still try but prepare to be disappointed.
 
 * fixed invalid spacing of dots in relative imports (#6, #13)
 
+* fixed spurious space in parenthesized set expressions (#7)
+
 
 ### 18.3a0
 

diff --git a/black.py b/black.py
@@ -895,6 +895,7 @@ def whitespace(leaf: Leaf) -> str:
         syms.or_test,
         syms.and_test,
         syms.arith_expr,
+        syms.expr,
         syms.shift_expr,
         syms.yield_expr,
         syms.term,

diff --git a/tests/expression.py b/tests/expression.py
@@ -106,6 +106,8 @@
 b = 1,
 c = 1
 d = (1,) + a + (2,)
+what_is_up_with_those_new_coord_names = (coord_names + set(vars_to_create)) + set(vars_to_remove)
+what_is_up_with_those_new_coord_names = (coord_names | set(vars_to_create)) - set(vars_to_remove)
 
 
 def gen():
@@ -228,6 +230,12 @@ async def f():
 b = 1,
 c = 1
 d = (1,) + a + (2,)
+what_is_up_with_those_new_coord_names = (coord_names + set(vars_to_create)) + set(
+    vars_to_remove
+)
+what_is_up_with_those_new_coord_names = (coord_names | set(vars_to_create)) - set(
+    vars_to_remove
+)
 
 
 def gen():