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-rw-r--r--django/utils/version.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/django/utils/version.py b/django/utils/version.py
index 1e9c720299..ecd41dac89 100644
--- a/django/utils/version.py
+++ b/django/utils/version.py
@@ -6,6 +6,9 @@ import sys
from django.utils.regex_helper import _lazy_re_compile
+# Private, stable API for detecting the Python implementation.
+PYPY = sys.implementation.name == "pypy"
+
# Private, stable API for detecting the Python version. PYXY means "Python X.Y
# or later". So that third-party apps can use these values, each constant
# should remain as long as the oldest supported Django version supports that