bpo-29455: Mention coverage.py in trace module documentation (#261)

diff --git a/Doc/library/trace.rst b/Doc/library/trace.rst
index b0ac81271c5c183e0670ac88ef4444acb6dbab9c..5cb7029adf5e9e3bb51654f61a361c72651830c6 100644 (file)
--- a/Doc/library/trace.rst
+++ b/Doc/library/trace.rst
@@ -13,6 +13,12 @@ annotated statement coverage listings, print caller/callee relationships and
 list functions executed during a program run.  It can be used in another program
 or from the command line.
 
+.. seealso::
+
+   `Coverage.py <https://coverage.readthedocs.io/>`_
+      A popular third-party coverage tool that provides HTML
+      output along with advanced features such as branch coverage.
+
 .. _trace-cli:
 
 Command-Line Usage