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-rw-r--r--Doc/library/sysconfig.rst4
1 files changed, 3 insertions, 1 deletions
diff --git a/Doc/library/sysconfig.rst b/Doc/library/sysconfig.rst
index ab248e7..29177a3 100644
--- a/Doc/library/sysconfig.rst
+++ b/Doc/library/sysconfig.rst
@@ -204,7 +204,9 @@ Other functions
.. function:: is_python_build()
- Return ``True`` if the current Python installation was built from source.
+ Return ``True`` if the running Python interpreter was built from source and
+ is being run from its built location, and not from a location resulting from
+ e.g. running ``make install`` or installing via a binary installer.
.. function:: parse_config_h(fp[, vars])