From 8d4e88a3dae6dfbfa6d765848e0514ceb1cafeb2 Mon Sep 17 00:00:00 2001
From: Ned Batchelder <ned@nedbatchelder.com>
Date: Sun, 31 Jan 2016 06:20:45 -0500
Subject: Write separate wtw files for each process

---
 coverage/collector.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/coverage/collector.py b/coverage/collector.py
index aabf10b7..3156b161 100644
--- a/coverage/collector.py
+++ b/coverage/collector.py
@@ -349,7 +349,8 @@ class Collector(object):
         if self.wtw:
             # Just a hack, so just hack it.
             import pprint
-            with open("coverage_wtw.py", "w") as wtw_out:
+            out_file = "coverage_wtw_{:06}.py".format(os.getpid())
+            with open(out_file, "w") as wtw_out:
                 pprint.pprint(self.contexts, wtw_out)
 
         self.reset()
-- 
cgit v1.2.1