Revert "Move unpack() from each implementation to __init__. (#286)"

This reverts commit da902f9c1d996fb461f1efef6487ef40d32d365a.

1 files changed, 26 insertions, 0 deletions

diff --git a/msgpack/_unpacker.pyx b/msgpack/_unpacker.pyx
index 25a7401..fb58490 100644
--- a/msgpack/_unpacker.pyx
+++ b/msgpack/_unpacker.pyx
@@ -211,6 +211,32 @@ def unpackb(object packed, object object_hook=None, object list_hook=None,
     raise UnpackValueError("Unpack failed: error = %d" % (ret,))
 
 
+def unpack(object stream, object object_hook=None, object list_hook=None,
+           bint use_list=1, encoding=None, unicode_errors=None,
+           object_pairs_hook=None, ext_hook=ExtType,
+           Py_ssize_t max_str_len=2147483647, # 2**32-1
+           Py_ssize_t max_bin_len=2147483647,
+           Py_ssize_t max_array_len=2147483647,
+           Py_ssize_t max_map_len=2147483647,
+           Py_ssize_t max_ext_len=2147483647):
+    """
+    Unpack an object from `stream`.
+
+    Raises `ValueError` when `stream` has extra bytes.
+
+    See :class:`Unpacker` for options.
+    """
+    return unpackb(stream.read(), use_list=use_list,
+                   object_hook=object_hook, object_pairs_hook=object_pairs_hook, list_hook=list_hook,
+                   encoding=encoding, unicode_errors=unicode_errors, ext_hook=ext_hook,
+                   max_str_len=max_str_len,
+                   max_bin_len=max_bin_len,
+                   max_array_len=max_array_len,
+                   max_map_len=max_map_len,
+                   max_ext_len=max_ext_len,
+                   )
+
+
 cdef class Unpacker(object):
     """Streaming unpacker.