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-rw-r--r--coverage/multiproc.py3
1 files changed, 2 insertions, 1 deletions
diff --git a/coverage/multiproc.py b/coverage/multiproc.py
index c466301f..2931b3be 100644
--- a/coverage/multiproc.py
+++ b/coverage/multiproc.py
@@ -6,6 +6,7 @@
import multiprocessing
import multiprocessing.process
import os
+import os.path
import sys
import traceback
@@ -85,7 +86,7 @@ def patch_multiprocessing(rcfile):
# Set the value in ProcessWithCoverage that will be pickled into the child
# process.
- os.environ["COVERAGE_RCFILE"] = rcfile
+ os.environ["COVERAGE_RCFILE"] = os.path.abspath(rcfile)
# When spawning processes rather than forking them, we have no state in the
# new process. We sneak in there with a Stowaway: we stuff one of our own