Questions tagged [pyethapp]

Ethereum's core Python-based client

Filter by
Sorted by
Tagged with
1
vote
0answers
128 views

How to parse internal transactions in order to find the transactions values

I would like to parse the transactions with the following transaction hash: 0xcad1183ecf7f278713858d92c06f00934f79a75eb5c852352a3ac35de07e151c More specifically, I'm interested to find out that 5 + ...
0
votes
2answers
170 views

Installation of pyethapp fails on Raspberry Pi

I'm trying to install pyethapp on Raspberry PI B+ sudo pip install pyethapp getting error Complete output from command python setup.py egg_info: Couldn't find index page for 'pytest-runner' (maybe ...
2
votes
0answers
130 views

Pyethapp stuck on waiting for bootstrap

I am trying to build a distributed application using pyethapp.But I am facing difficulty in setting up pyethapp.
1
vote
1answer
219 views

Connect pyethapp to testrpc - Is there an equivalent to `geth attach` in pyethapp?

I have an instance of testrpc running: testrpc -a 1000 when using geth, I'd do this: geth attach rpc:http://localhost:8545 to link to it. I have pyethapp installed and would like to do something ...
5
votes
3answers
821 views

pyethapp ImportError: cannot import name blocks

I installed pyethapp using pip install -c constraints.txt pyethapp. The constraints.txt file has one line, pyelliptic==1.5.7, to prevent the install error mentioned in this thread. The install ...
1
vote
0answers
143 views

Contract method not returning the value while using ethjsonrpc and pyethapp

for some reason, i had to use python version of Ethereum implementation i.e PyEthApp. I am able to setup the local network and able mine the transactions. I was exeperimenting with contracts for my ...
2
votes
3answers
1k views

How to setup a Ethereum private chain by using pyethapp?

For some reason, I want want setup an Ethereum private chain by using Pyethapp instead of Geth. Any suggestion any idea?
3
votes
0answers
83 views

Pyethapp port forwarding and configuration help?

I'm trying to setup an ethereum node on my raspberry pi using pyethapp as the client. I was wondering if allowing port forwarded inbound connections would help to make my node more useful to the ...
5
votes
2answers
8k views

Are there any implementations of smart contracts in Python?

I want to implement some smart contracts and I am strongest in python.
1
vote
0answers
168 views

Account won't keep unlocked: “Locked account cannot sign tx”

at the moment I am trying to make a private testchain work for testing and understanding ethereum. My OS is Ubuntu 14.04 and I'd like to create a contract with python. Therefore I startet pyethapp ...
2
votes
1answer
513 views

AssertionError: sorry, but this version only supports 100 named groups

My system: OS: ubuntu 16.04 python version: 2.7 I am following the instructions from here : https://github.com/ethereum/pyethapp/wiki/Getting-Started to install pyethapp from Github. However when I ...
4
votes
1answer
175 views

How to detect an log is removed nor not

In JSONRPC WIKI page, there is an method called eth_newFilter, though this function, we can subscribe the specific event logs we need. We can get the subscription via eth_getFilterChanges. And the ...
4
votes
1answer
206 views

How to uninstall pyethapp?

I want to uninstall pyethapp but I didn't found how to do this. Someone can help me ?
3
votes
0answers
212 views

Send JSON RPC request in BATCH

Is there any way i can send rpc request in batch way using pyethapp? If exists, whether it can help to increase the request efficiency? Thanks a lot.
2
votes
1answer
117 views

How can I change etherbase in pyethapp?

I want to change etherbase in pyethapp, but couldn't find something like setEtherbase in geth. How can I change etherbase (coinbase or eth.coinbase) in pyethapp?
3
votes
1answer
184 views

pyethapp is unable to add transactions to blockchain

I'm using pyethapp and web3.js to make transactions on a private network. var to = "1152a50b91887591a2447b233105f392dbae72ce"; var from = "4dfd7cb92bca796821d5fc4512a6a02cc98d833d"; var json_data = {...
1
vote
0answers
54 views

Is there a way to get proper block object of pyethereum with RPC?

I am running a geth node and I would like to connect to the node with python and get instance of the Block class: https://github.com/ethereum/pyethereum/blob/develop/ethereum/blocks.py#L164 is there ...
4
votes
1answer
1k views

Storing data in the blockchain inside a transaction

This question is related to this one and this one. I'm trying to store data in the blockchain inside the transaction data field: The second question offers a solution using a contract but is it ...
3
votes
0answers
60 views

Effectively debugging pyethapp

I have also asked the technical details of pyethapp's use of gevents here. I'm trying to run a transaction step by step in a debugger and see how it is being signed and added to the blockchain. I am ...
4
votes
0answers
69 views

How can I link the serpent compiler to geth?

geth offers the function eth.compile.serpent. However, when I try to provide some source to the compiler, it returns The method eth_compileSerpent does not exist/is not available. I wonder: How can ...
1
vote
1answer
164 views

Is there any geth — fast equivalent for pyethapp?

I tried to " pyethapp run " but I am " INFO:p2p.peermgr waiting for bootstrap " for hours. Anything I could try to have the blockchain as fast as geth -- fast for pyethapp? Thanks
1
vote
0answers
185 views

pyethapp fails to send transactions in a private net

This question is related to this question but I'm using the pyethapp client instead of web3.js. I've created two accounts using pyetahpp: pyethapp account new # 1 pyethapp account new # 2 and then ...
6
votes
1answer
269 views

Generating accounts with pyethereum is insanely slow

I'm trying to debug an app that at some point needs to create a password protected account. When I reach that point in my code using pycharm's debugger it takes forever to generate an account ...
2
votes
0answers
231 views

Is the DAG the same for all (private/main/test) nets?

Reading about the proof of work, I got to the data generation part (mainly the DAG) and found it in: ~/.ethash/full-R23-0000000000000000 In the ethash it is mentioned that the DAG is generated from ...
6
votes
1answer
96 views

User service granularity levels

Is it possible to fire up event handlers upon transaction creation/confirmation? In this tutorial two event handlers are used on_start() and on_block(). Is it possible to have a finer level of ...
13
votes
1answer
768 views

Trying to compile example code from pyethapp tutorial

I am trying to follow this example: https://github.com/ethereum/pyethapp/wiki/The_Console However, at the point where I should compile the code, I get an error: In [34]: print c contract NameReg{ ...
3
votes
1answer
564 views

Differences between pyethapp and geth?

After using both clients I couldn't find differences in terms of functionality (features) between geth and pyethapp, only reading that pyethapp is more of a stub project that is easily hackable so ...
5
votes
1answer
99 views

Running an external command upon transaction confirmation

I was wondering if it were possible to launch an external command (system call) when a transaction sent by a node is confirmed? For example if node A runs pyethapp (in the context of a private ...
14
votes
1answer
2k views

Whats the difference between pyethapp and pyethereum?

This one: https://github.com/ethereum/pyethapp and this one: https://github.com/ethereum/pyethereum I have pyethapp running (the ipython console). What then is pyethereum?
3
votes
1answer
95 views

Does Go Ethereum have User service hooks like Pyethapp?

Pyethapp provides a simple hook to allow developers to plug-in user services that can intercept blocks and even create mini oracles in Python. Does Go Ethereum have something similar?
9
votes
0answers
394 views

Peermanager is unable to connect to nodes

I'm following this guide and am trying to create a private network with its own block chain and peers. I managed to install docker following this guide (I'm using a debian 8 jessie virtual machine) ...
4
votes
1answer
118 views

Does using contracts require port forwarding?

I'm following the guide for creating a user service as described here. When I place the urlfetcher.py file in ~/.config/pyethapp/contrib directory and restart pyethapp: $ pyethapp run I get the ...
0
votes
1answer
191 views

Writing scripts for pyethapp

Is it possible to use pyethapp as a python script interpreter so that account management operations and transactions may be automated.
2
votes
0answers
69 views

Debugging pyethapp

I'm having some trouble debugging pyethapp. I have also asked a question here. I get an error in file console_service.py at line 38 (as of version pyethapp 1.2.2/linux2/py2.7.9): @inputhook_manager....
3
votes
0answers
524 views

Pyethapp Build error: No files/directories in ..pip-build-gpzcs1\leveldb\pip-egg-info (fr om PKG-INFO)

I'm new to ethereum & do not have any ethereum clients 'installed'. I'm trying to install pyethapp in a clean virtualenv following the github tutorial, but it produces the following error. ...
3
votes
3answers
1k views

How to sync pyethapp (python ethereum client) with the mainnet?

I just installed pyethapp. However, I'm unable to sync the blockchain. Here is what I get when I run the client: 0 ✓ user@host ~ $ pyethapp run Failed to import scrypt. This is not a fatal error but ...