Bug 519706 – net-p2p/tribler - File "/usr/lib64/python2.7/site-packages/M2Crypto/EC.py", line 15, in <module> m2.ec_init(ECError) AttributeError: 'module' object has no attribute 'ec_init'

• Status: RESOLVED FIXED
• Product: Gentoo Linux

[Description Emmanuel Anne 2014-08-12 11:22:13 UTC]

the bug is with m2crypto which is used by tribler, I tried the default 6.0.3 version and the 6.2.0.
The error is :
Traceback (most recent call last):
  File "Tribler/Main/tribler.py", line 34, in <module>
    from Tribler.Core.CacheDB.SqliteCacheDBHandler import ChannelCastDBHandler
  File "/usr/share/tribler/Tribler/Core/CacheDB/SqliteCacheDBHandler.py", line 14, in <module>
    from Tribler.Core.TorrentDef import TorrentDef
  File "/usr/share/tribler/Tribler/Core/TorrentDef.py", line 28, in <module>
    from Tribler.Core.ClosedSwarm import ClosedSwarm
  File "/usr/share/tribler/Tribler/Core/ClosedSwarm/ClosedSwarm.py", line 8, in <module>
    from M2Crypto.EC import pub_key_from_der
  File "/usr/lib64/python2.7/site-packages/M2Crypto/EC.py", line 15, in <module>
    m2.ec_init(ECError)
AttributeError: 'module' object has no attribute 'ec_init'

readable in ~/.Tribler/tribler.log immediately after launching tribler !

[Comment 1 loadletter 2014-09-08 21:08:40 UTC]

This happens because tribler requires openssl built with elliptic crypto (ec), which by default is disabled with the bindist USE flag because of patents, rebuilding openssl without bindist USE flag and then rebuilding m2crypto solves this problem.

Add "dev-libs/openssl -bindist" to package.use
emerge -avt --newuse openssl
emerge -av m2crypto

[Comment 2 Emmanuel Anne 2014-09-08 22:38:42 UTC]

Thanks for the info, I had almost forgotten about this, but good to know, thanks !

[Comment 3 Anthony Basile 2014-09-09 00:11:23 UTC]

I added an RDEPEND on dev-libs/openssl:0[-bindist].

Thanks for the report.