Merge pull request #3099 from opentensor/fix/thewhaleking/add-patched-process-method

Adds temporary patch for scalecodec

Author: basfroman

bittensor/__init__.py

@@ -3,6 +3,7 @@
 from .core.settings import __version__, version_split, DEFAULTS, DEFAULT_NETWORK
 from .utils.btlogging import logging
 from .utils.easy_imports import *
+import scalecodec.types
 
 
 def __getattr__(name):
@@ -13,3 +14,21 @@ def __getattr__(name):
         )
         return version_split
     raise AttributeError(f"module {__name__} has no attribute {name}")
+
+
+# the following patches the `scalecodec.types.Option.process` that allows for decoding certain extrinsics (specifically
+# the ones used by crowdloan using Option<scale_info::227>. There is a PR up for this: https://github.com/JAMdotTech/py-scale-codec/pull/134
+# and this patch will be removed when this is applied/released.
+
+
+def patched_process(self):
+    option_byte = self.get_next_bytes(1)
+
+    if self.sub_type and option_byte != b"\x00":
+        self.value_object = self.process_type(self.sub_type, metadata=self.metadata)
+        return self.value_object.value
+
+    return None
+
+
+scalecodec.types.Option.process = patched_process