[Libguestfs] [libnbd PATCH v3 4/5] python: Support len(nbd.Buffer(n))

b.size() is atypical, Python programmers generally expect to be able to do len(b). Keep the old spelling for backwards compatibility. --- generator/Python.ml | 4 ++++ python/t/580-aio-is-zero.py | 2 ++ 2 files changed, 6 insertions(+) diff --git a/generator/Python.ml b/generator/Python.ml index cd7f0e3..975cab4 100644 --- a/generator/Python.ml +++ b/generator/Python.ml @@ -745,6 +745,10 @@ let return bytearray(self._o) def size(self): + '''Return the size of an AIO buffer.''' + return len(self) + + def __len__(self): '''Return the size of an AIO buffer.''' return len(self._o) diff --git a/python/t/580-aio-is-zero.py b/python/t/580-aio-is-zero.py index 1a9a7d3..dd57e30 100644 --- a/python/t/580-aio-is-zero.py +++ b/python/t/580-aio-is-zero.py @@ -24,6 +24,7 @@ import nbd ba = bytearray(2**20) buf = nbd.Buffer.from_bytearray(ba) assert buf.size() == 2**20 +assert len(buf) == 2**20 assert buf.is_zero() # The above buffer is 2**20 (= 1MB), slices of it should also be zero. @@ -74,5 +75,6 @@ assert buf.is_zero(2**21-1, 1) # used with aio_pread; but it will be zeroed if accessed prematurely buf = nbd.Buffer(1024) assert buf.size() == 1024 +assert len(buf) == 1024 assert buf.is_zero() assert nbd.Buffer.from_bytearray(buf.to_bytearray()).is_zero() -- 2.36.1