From 0af9b37cd91c00068670af6dd5c21d064675c718 Mon Sep 17 00:00:00 2001
From: Anthony Sottile <asottile@umich.edu>
Date: Mon, 21 Nov 2022 14:11:37 -0500
Subject: [PATCH] fix ambiguous identifiers in lambda bodies inside braces

---
 pycodestyle.py   | 12 ++++++++----
 testsuite/E74.py |  4 ++++
 2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/pycodestyle.py b/pycodestyle.py
index 7ee2375a..8fb2fa1f 100755
--- a/pycodestyle.py
+++ b/pycodestyle.py
@@ -1521,7 +1521,7 @@ def ambiguous_identifier(logical_line, tokens):
     E742: class I(object):
     E743: def l(x):
     """
-    is_func_def = False  # Set to true if 'def' or 'lambda' is found
+    func_depth = None  # set to brace depth if 'def' or 'lambda' is found
     seen_colon = False  # set to true if we're done with function parameters
     brace_depth = 0
     idents_to_avoid = ('l', 'O', 'I')
@@ -1531,8 +1531,12 @@ def ambiguous_identifier(logical_line, tokens):
         ident = pos = None
         # find function definitions
         if prev_text in {'def', 'lambda'}:
-            is_func_def = True
-        elif is_func_def and text == ':' and brace_depth == 0:
+            func_depth = brace_depth
+        elif (
+                func_depth is not None and
+                text == ':' and
+                brace_depth == func_depth
+        ):
             seen_colon = True
         # update parameter parentheses level
         if text in '([{':
@@ -1552,7 +1556,7 @@ def ambiguous_identifier(logical_line, tokens):
                 pos = start
         # function / lambda parameter definitions
         if (
-                is_func_def and
+                func_depth is not None and
                 not seen_colon and
                 index < len(tokens) - 1 and tokens[index + 1][1] in ':,=)' and
                 prev_text in {'lambda', ',', '*', '**', '('} and
diff --git a/testsuite/E74.py b/testsuite/E74.py
index 93d6c131..5885242a 100644
--- a/testsuite/E74.py
+++ b/testsuite/E74.py
@@ -2,3 +2,7 @@
 lambda l: dict(zip(l, range(len(l))))
 #: E741:1:7 E704:1:1
 def f(l): print(l, l, l)
+#: E741:2:12
+x = (
+    lambda l: dict(zip(l, range(len(l)))),
+)