Pyethapp installs but errors on run: symbol not found

[tatianafrank]

• installed pyethapp directly on osx
• python version: 2.7
• installation method: pip -pyethapp version: 1.5

Pytheapp is installed successfully but trying to run any command, even just 'pyethapp' results in the below error stack trace:

Traceback (most recent call last): File "/Users/tatianafrank/anaconda/bin/pyethapp", line 7, in <module> from pyethapp.app import app File "/Users/tatianafrank/anaconda/lib/python2.7/site-packages/pyethapp/app.py", line 15, in <module> from devp2p.app import BaseApp File "/Users/tatianafrank/anaconda/lib/python2.7/site-packages/devp2p/app.py", line 8, in <module> from devp2p import crypto File "/Users/tatianafrank/anaconda/lib/python2.7/site-packages/devp2p/crypto.py", line 16, in <module> import pyelliptic File "/Users/tatianafrank/anaconda/lib/python2.7/site-packages/pyelliptic/__init__.py", line 43, in <module> from .openssl import OpenSSL File "/Users/tatianafrank/anaconda/lib/python2.7/site-packages/pyelliptic/openssl.py", line 310, in <module> OpenSSL = _OpenSSL(libname) File "/Users/tatianafrank/anaconda/lib/python2.7/site-packages/pyelliptic/openssl.py", line 144, in __init__ self.EVP_CIPHER_CTX_reset = self._lib.EVP_CIPHER_CTX_reset File "/Users/tatianafrank/anaconda/lib/python2.7/ctypes/__init__.py", line 375, in __getattr__ func = self.__getitem__(name) File "/Users/tatianafrank/anaconda/lib/python2.7/ctypes/__init__.py", line 380, in __getitem__ func = self._FuncPtr((name_or_ordinal, self)) AttributeError: dlsym(0x1003c40c0, EVP_CIPHER_CTX_reset): symbol not found

[leonid-ed]

I have the same problem with pyethapp.

It looks like this issue is similar to #234 But when I made pip install pyelliptic==1.5.7 and tried to start pyethapp I got an error:

Traceback (most recent call last): File "/home/leonid/.virtualenvs/pyethapp_env/bin/pyethapp", line 7, in from pyethapp.app import app File "/home/leonid/.virtualenvs/pyethapp_env/local/lib/python2.7/site-packages/pyethapp/app.py", line 19, in from ethereum import blocks

[buckysballs]

I'm affected by this as well, digging in.

[reinka]

@leonid-ed The error is thrown because the file in the ethereum package is actually called block and not blocks.

I could fix this issue by installing the development version of pyethapp as described in their README here.

So the whole procedure to fix this symbol not found error was for me:

1. Downgrading pyelliptic via pip install pyelliptic==1.5.7
2. Install pyethapp development version as described in the link above.

(You could probably also mess with the import statement and change it to block thought this approach is not recommended.)