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client: do not coerce self.features.vendor to string

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There is no good reason to do that and it hides situations when
the field mistakenly doesn't exist.

Added comment explains that missing "vendor" field might by caused
by trezor-common mismatch, which fixes #328
This commit is contained in:
matejcik 2018-11-06 14:13:08 +01:00
parent ca345e9766
commit 560a5215c5
1 changed files with 4 additions and 1 deletions
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5
trezorlib/client.py
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@ -180,8 +180,11 @@ class ProtocolMixin(object):
raise exceptions.TrezorException("Unexpected initial response")
else:
self.features = resp
if str(self.features.vendor) not in self.VENDORS:
if self.features.vendor not in self.VENDORS:
raise RuntimeError("Unsupported device")
# A side-effect of this is a sanity check for broken protobuf definitions.
# If the `vendor` field doesn't exist, you probably have a mismatched
# checkout of trezor-common.
@staticmethod
def expand_path(n):