bpo-37363: Add audit events to the http.client module (GH-21321)

Add audit events to the `http.client` module

Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>

Lib/test/audit-tests.py

@@ -341,6 +341,24 @@ def test_gc():
     gc.get_referents(y)
 
 
+def test_http_client():
+    import http.client
+
+    def hook(event, args):
+        if event.startswith("http.client."):
+            print(event, *args[1:])
+
+    sys.addaudithook(hook)
+
+    conn = http.client.HTTPConnection('www.python.org')
+    try:
+        conn.request('GET', '/')
+    except OSError:
+        print('http.client.send', '[cannot send]')
+    finally:
+        conn.close()
+
+
 if __name__ == "__main__":
     from test.support import suppress_msvcrt_asserts