Incompatible with newest web3

[konradweiss]

When i run mayan.py i get an import error:

File "maian.py", line 24, in
from web3 import Web3, KeepAliveRPCProvider, IPCProvider
ImportError: cannot import name 'KeepAliveRPCProvider'

my assumption is that the ''KeepAliveRPCProvider' was removed sometime. I compiled web3 from the current version 4.1 source.

Do you use a different one, can you provide the version?

Regards,
Konrad

[konradweiss]

One version that works is 3.4.4

[arun-munagala]

@LoCorVin using 3.4.4 gives me the following error

File "/usr/local/lib/python3.5/dist-packages/web3/utils/crypto.py", line 26, in
assert sha3('') == 'c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470'
AssertionError.

any other workaround?

[konradweiss]

No, until now i still have problems getting it to run. When analyzing a contract, a call to sha3 contracts.py expects a static signature, but web3 on 3.4.4 provides a signature expecting a argument self, so in theory we need a Web3 instance first.

[arun-munagala]

@LoCorVin Thanks for the update. even i have some problems. Tried using other web3 versions but had other dependency issues.

[konradweiss]

If you ever get it running pleas tell me, maybe we can initiate a pull request with a Dockerfile that encapsulates all dependencies

[arun-munagala]

@LoCorVin Will surely let you know!

[nsumner]

After converting several divisions to integer divisions in execute_instruction.py, it works with python3.

I built the z3 python3 bindings and used these versions for dependencies:

• web3 3.4.4
• eth-abi 0.5.0
• rlp 0.6.0

I have not done extensive testing, but the examples seem to work.