Add setuptools.log to supersede distutils.log. Ref #2973.

1 files changed, 22 insertions, 0 deletions

diff --git a/setuptools/logging.py b/setuptools/logging.py
new file mode 100644
index 00000000..0ac47059
--- /dev/null
+++ b/setuptools/logging.py
@@ -0,0 +1,22 @@
+import sys
+import logging
+
+
+def _not_warning(record):
+    return record.levelno < logging.WARNING
+
+
+def configure():
+    """
+    Configure logging to emit warning and above to stderr
+    and everything else to stdout. This behavior is provided
+    for compatibilty with distutils.log but may change in
+    the future.
+    """
+    err_handler = logging.StreamHandler()
+    err_handler.setLevel(logging.WARNING)
+    out_handler = logging.StreamHandler(sys.stdout)
+    out_handler.addFilter(_not_warning)
+    handlers = err_handler, out_handler
+    logging.basicConfig(
+        format="{message}", style='{', handlers=handlers, level=logging.DEBUG)