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-rw-r--r--Lib/sysconfig.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/Lib/sysconfig.py b/Lib/sysconfig.py
index ef530617a35..7b78440ed3f 100644
--- a/Lib/sysconfig.py
+++ b/Lib/sysconfig.py
@@ -215,7 +215,7 @@ def _parse_makefile(filename, vars=None):
# Regexes needed for parsing Makefile (and similar syntaxes,
# like old-style Setup files).
import re
- _variable_rx = re.compile("([a-zA-Z][a-zA-Z0-9_]+)\s*=\s*(.*)")
+ _variable_rx = re.compile(r"([a-zA-Z][a-zA-Z0-9_]+)\s*=\s*(.*)")
_findvar1_rx = re.compile(r"\$\(([A-Za-z][A-Za-z0-9_]*)\)")
_findvar2_rx = re.compile(r"\${([A-Za-z][A-Za-z0-9_]*)}")