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-rw-r--r--Lib/test/libregrtest/main.py8
1 files changed, 7 insertions, 1 deletions
diff --git a/Lib/test/libregrtest/main.py b/Lib/test/libregrtest/main.py
index e068b92..7b11fe9 100644
--- a/Lib/test/libregrtest/main.py
+++ b/Lib/test/libregrtest/main.py
@@ -28,7 +28,13 @@ except ImportError:
# to keep the test files in a subfolder. This eases the cleanup of leftover
# files using the "make distclean" command.
if sysconfig.is_python_build():
- TEMPDIR = os.path.join(sysconfig.get_config_var('srcdir'), 'build')
+ TEMPDIR = sysconfig.get_config_var('abs_builddir')
+ if TEMPDIR is None:
+ # bpo-30284: On Windows, only srcdir is available. Using abs_builddir
+ # mostly matters on UNIX when building Python out of the source tree,
+ # especially when the source tree is read only.
+ TEMPDIR = sysconfig.get_config_var('srcdir')
+ TEMPDIR = os.path.join(TEMPDIR, 'build')
else:
TEMPDIR = tempfile.gettempdir()
TEMPDIR = os.path.abspath(TEMPDIR)