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fixed faulty dict access syntax which causes an attribute error #1040

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merged 1 commit into from
Sep 3, 2018
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fixed faulty dict access syntax which causes an attribute error #1040

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4 changes: 2 additions & 2 deletions web3/contract.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1416,7 +1416,7 @@ def parse_block_identifier(web3, block_identifier):
elif block_identifier in ['latest', 'earliest', 'pending']:
return block_identifier
elif isinstance(block_identifier, bytes) or is_hex_encoded_block_hash(block_identifier):
return web3.eth.getBlock(block_identifier).number
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@pipermerriam pipermerriam Sep 3, 2018

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cc @dylanjw @carver @voith just in case you don't see this. This is a good example of why we should be as diligent as possible to not assume the AttributeDict API is usable within our own web3 apis. Forgive me for preaching to the choir if you're already aware.

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@carver carver Sep 3, 2018

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FWIW, replacing all the middlewares as the user did in #1039 is almost definitely not what they wanted to do. There will be a lot of things that work incorrectly, like: fields won't be converted to and from python native types. I'm not suggesting that we should encourage attribute syntax, but this is only one of many things that will work in unexpected ways if the user drops all the middleware.

return web3.eth.getBlock(block_identifier)['number']
else:
raise BlockNumberOutofRange

Expand All @@ -1425,7 +1425,7 @@ def parse_block_identifier_int(web3, block_identifier_int):
if block_identifier_int >= 0:
block_num = block_identifier_int
else:
last_block = web3.eth.getBlock('latest').number
last_block = web3.eth.getBlock('latest')['number']
block_num = last_block + block_identifier_int + 1
if block_num < 0:
raise BlockNumberOutofRange
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