#1513299: cleanup some map() uses where a comprehension works better.
diff --git a/Lib/test/test_long.py b/Lib/test/test_long.py
index 133702e..12197ee 100644
--- a/Lib/test/test_long.py
+++ b/Lib/test/test_long.py
@@ -276,7 +276,7 @@
         digits = digits or [0]
         return '-'[:sign] + \
                {2: '0b', 8: '0o', 10: '', 16: '0x'}[base] + \
-               "".join(map(lambda i: "0123456789abcdef"[i], digits))
+               "".join("0123456789abcdef"[i] for i in digits)
 
     def check_format_1(self, x):
         for base, mapper in (8, oct), (10, repr), (16, hex):