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-rw-r--r--docs/library/binascii.rst6
1 files changed, 6 insertions, 0 deletions
diff --git a/docs/library/binascii.rst b/docs/library/binascii.rst
index 6c02f019a..c728c5a8a 100644
--- a/docs/library/binascii.rst
+++ b/docs/library/binascii.rst
@@ -36,3 +36,9 @@ Functions
Encode binary data in base64 format, as in `RFC 3548
<https://tools.ietf.org/html/rfc3548.html>`_. Returns the encoded data
followed by a newline character if newline is true, as a bytes object.
+
+.. function:: crc32(data, [value])
+
+ Compute CRC-32, the 32-bit checksum of *data*, starting with an initial CRC
+ of *value*. The default initial CRC is zero. The algorithm is consistent
+ with the ZIP file checksum.