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@gpathela not really... I went with the geth after all...
@kachar a bit late but I found the same problem and solved it by installing an alpha version, as described here: ethereum/pyethapp#275
Hey everyone. What resources (books/courses/guides) would you recommend I use, to begin using the ETH blockchain (or any other Blckchn) to develop decentralized applications?
Andrew Redden
for the casper FFG testnet, I get WARNING:pow mining_hash does not match
everytime I find a nonce
Vikram Singh
Traceback (most recent call last):
File "/home/gujjar/pyethapp/bin/pyethapp", line 7, in <module>
from import app
File "/home/gujjar/pyethapp/local/lib/python2.7/site-packages/pyethapp/", line 19, in <module>
from ethereum import blocks
ImportError: cannot import name blocks
i am getting this error on run
pyethapp (develop) is not syncing to main nor test (i am on pyethereum develop branch)
is there any known issue?
@heikoheiko current pyethapp work on PV62. Is that the reason why it never sync as geth?
pyethapp gets stuck on
NFO:eth.sync.task downloaded 123296 blockheaders start=#4370001 8a3fb8b4 end=#4246706 f4c72d28
same block even if i restart
ImportError: cannot import name blocks
hello anybody
wo want to learn blockchain
i want to learn blockchain
do u have some files to instruct
I know this is not everyone's favorite topic, but I have been hacking through getting pyethapp running on windows 10. I would say I am 90% there, but am having same problems get pyethash to build (using MGWIN) and for the setup script to recognize that I have a running leveldb environment and skip that build. I was able to find a bunch of helpful posts to get me this far, but I am still short. Anyone want to help me? I am willing to put together a HOWTO document once it works.
i made some more progress today, got pyehash to build
now working on an error installing miniupnpc
seems dead here, guess I'll go try with geth
Simran Kedia

I am trying to setup pyethapp development environment. I used
($ mkvirtualenv pyethapp)
$ git clone
$ cd pyethapp
$ USE_PYETHEREUM_DEVELOP=1 python develop

However, I am getting the error as:
Writing /var/folders/rp/l3y_m3392dqcgc_77m8f_ks00000gn/T/easy_install-9ohquD/ethereum-2.1.1/setup.cfg
Running ethereum-2.1.1/ -q bdist_egg --dist-dir /var/folders/rp/l3y_m3392dqcgc_77m8f_ks00000gn/T/easy_install-9ohquD/ethereum-2.1.1/egg-dist-tmp-tW2_JB
error: Setup script exited with error in ethereum setup command: 'tests_require' must be a string or list of strings containing valid project/version requirement specifiers; Unordered types are not allowed

Can someone please help?

Muhammad Faizan
@simrankedia Hi, I also tried am getting the same error. If you by any chance figure out the solution.
Sai Chaitanya Tirumerla
hey @simrankedia , @faizan2590 - I manually installed ethereum == 2.3.0 from and change requirements.txt file with ethereum=2.3.0 instead of 2.1.1 and pycryptodome=3.4.7. Try again to install
Kevin Carter
is pyethapp:master the most stable branch?
Sai Chaitanya Tirumerla
@tidymonkey81 i would guess so - i used develop branch though , i havent had any problems.
Anyone knows about this problem?
running from PyCharm
from . import config as app_config
ValueError: Attempted relative import in non-package
Sai Chaitanya Tirumerla
hey @pblin - how are you running it, do you see the same issue when you are running as python pyethapp/ or just running as python
WARNING:eth.sync.task no protocols available
WARNING:eth.sync.task syncing failed
who know this error
I want to run casper testnet
who know other casper testnet enode ?

Hi folks, I want to connect to my privet blockchain using PyEthApp. My privet blockchain was upped with geth

"geth --datadir ./myDataDir --networkid 1114 --rpc --rpcport "8545" --rpccorsdomain "*" console 2>> myEth.log"

, so I am trying to connect using following

"pyethapp -c eth.network_id=1114 -b enode://....@[::]:30303 run --console".

And I always get following error “Address already in use: ('', 30303)”

Could any help me? Thanks a lot.

pyethapp sync the blocks too slow,Can it be used in an exchange code?
Arthur Tazhitdinov
Guys, can someone answer, is it possible to connect to pyethapp node with Mist?
Alexander Mühle
I havent tried it but you should be able to connect to pyethapp via http RPC, you can't use IPC however, so it will be less secure @osteotek
Arthur Tazhitdinov
@alexandermuehle yeah, I'm getting no luck with usual way of "--rpc http://HTTP://". Should I enable API modules somehow when starting pyethapp node, like with geth?
Alexander Mühle
Pyethapp rpc port is 4000
Arthur Tazhitdinov
I remapped port to 8545. I'm able to connect to it from python scripts with, I just can't connect mist (or geth) to it
Andre Miras
Hi here!
Andre Miras
I've published a pull request that brings great speed improvement to account create/unlock :smile:
Please review it here:
chandan kuiry
how can i implement pbft algorithm using python.can anyone share me some github tutorial
Hi guys when I enter pyethapp run im getting an error stating resource temporarily unavailable. Anyone have a suggestion?
Piper Merriam
@/all pyethapp does not have a dedicated maintainer or development team and is likely to be formally deprecated/sunseted. If you are looking for a python ethereum client come check out trinity (currently found in the py-evm repository and under the py-evm gitter channel ). It is built on top of pyevm (replacement for pyethereum). It is actively maintained and developed and quickly approaching the first public alpha release.
Which version do you trust the most?
how can I set a private network in