hydrachain installation problem

[ripulbd]

Hi,

I am trying to install the hydrachain in my ubuntu desktop. It does not seem to install and it aborts with the following error messages:

---

Linking /tmp/easy_install-9Px6h2/gevent-1.1b3/build/lib.linux-x86_64-2.7/gevent/_util.so to /tmp/easy_install-9Px6h2/gevent-1.1b3/gevent/_util.so
File "build/bdist.linux-x86_64/egg/gevent/_socket3.py", line 164
def makefile(self, mode="r", buffering=None, *,
^
SyntaxError: invalid syntax

creating /usr/local/lib/python2.7/dist-packages/gevent-1.1b3-py2.7-linux-x86_64.egg
Extracting gevent-1.1b3-py2.7-linux-x86_64.egg to /usr/local/lib/python2.7/dist-packages
File "/usr/local/lib/python2.7/dist-packages/gevent-1.1b3-py2.7-linux-x86_64.egg/gevent/_socket3.py", line 164
def makefile(self, mode="r", buffering=None, *,
^
SyntaxError: invalid syntax

Adding gevent 1.1b3 to easy-install.pth file

Installed /usr/local/lib/python2.7/dist-packages/gevent-1.1b3-py2.7-linux-x86_64.egg
error: gevent 1.1b3 is installed but gevent==1.1rc3 is required by set(['devp2p'])

---

I installed the gevent==1.1rc3 to resolve the issue with no success.

Any idea why it might happen?

Thanks in advance,
Ripul

[ezdac]

It's a dependency collision with pyethapp,which is why the gevent 1.1b3 gets installed even if you reinstalled the desired version for hydrachain.
If time is pressing, a workaround here would be to pull pyethapp and change the requirements.txt to gevent==1.1rc3 and then install pyethapp inside your python installation/environment via the python setup.py develop command.
Proceed with caution, because this could introduce problems in pyethapp and be aware that it changes the way pyethapp is referenced inside of your site-packages (check pip list before and after).
As always, this is highly recommended inside a virtualenv(+wrapper).
This will work natively without the hassle, once this is evaluated and the requirements are changed.
For other questions, please also check the gitter-channel

[ripulbd]

Many thanks for the suggestion. It seems to have resolved the issue.