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-rw-r--r--cffi/_embedding.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/cffi/_embedding.h b/cffi/_embedding.h
index e863d85..4a42cbb 100644
--- a/cffi/_embedding.h
+++ b/cffi/_embedding.h
@@ -22,7 +22,8 @@ extern "C" {
* _cffi_call_python_org, which on CPython is actually part of the
_cffi_exports[] array, is the function pointer copied from
- _cffi_backend.
+ _cffi_backend. If _cffi_start_python() fails, then this is set
+ to NULL; otherwise, it should never be NULL.
After initialization is complete, both are equal. However, the
first one remains equal to &_cffi_start_and_call_python until the