diff options
Diffstat (limited to 'pyasn1/codec/streaming.py')
| -rw-r--r-- | pyasn1/codec/streaming.py | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/pyasn1/codec/streaming.py b/pyasn1/codec/streaming.py index 65c318c..6d0146b 100644 --- a/pyasn1/codec/streaming.py +++ b/pyasn1/codec/streaming.py @@ -98,7 +98,10 @@ def asSeekableStream(substrate): : :py:class:`~pyasn1.error.PyAsn1Error` If the supplied substrate cannot be converted to a seekable stream. """ - if isinstance(substrate, bytes): + if isinstance(substrate, io.BytesIO): + return substrate + + elif isinstance(substrate, bytes): return io.BytesIO(substrate) elif isinstance(substrate, univ.OctetString): @@ -225,7 +228,7 @@ def readFromStream(substrate, size=-1, context=None): if received is None: # non-blocking stream can do this yield error.SubstrateUnderrunError(context=context) - elif size != 0 and not received: # end-of-stream + elif not received and size != 0: # end-of-stream raise error.EndOfStreamError(context=context) elif len(received) < size: |