Merge pull request #1012 from Zac-HD/posonly-lambda-fix

Fix E225 for lambdas with all positional-only arguments

Author: asottile

pycodestyle.py

@@ -933,7 +933,9 @@ def missing_whitespace_around_operator(logical_line, tokens):
                     #           ^
                     # def f(a, b, /):
                     #              ^
-                    prev_text == '/' and text in {',', ')'} or
+                    # f = lambda a, /:
+                    #                ^
+                    prev_text == '/' and text in {',', ')', ':'} or
                     # def f(a, b, /):
                     #               ^
                     prev_text == ')' and text == ':'

testsuite/python38.py

@@ -13,6 +13,9 @@ def f3(
         b,
 ):
     pass
+
+
+lambda a, /: None
 #: Okay
 if x := 1:
     print(x)