PyYAML ImportError: No module named 'error'

[AndreMiras]

See trace below:

04-03 22:33:06.777  7579  7642 I python  :  Traceback (most recent call last):
04-03 22:33:06.777  7579  7642 I python  :    File "main.py", line 16, in <module>
04-03 22:33:06.778  7579  7642 I python  :      from pyethapp.accounts import AccountsService
04-03 22:33:06.778  7579  7642 I python  :    File "/data/user/0/com.github.andremiras.etheroll/files/app/crystax_python/site-packages/pyethapp/accounts.py", line 9, in <module>
04-03 22:33:06.779  7579  7642 I python  :      from ethereum.tools import keys
04-03 22:33:06.779  7579  7642 I python  :    File "/data/user/0/com.github.andremiras.etheroll/files/app/crystax_python/site-packages/ethereum/tools/__init__.py", line 1, in <module>
04-03 22:33:06.780  7579  7642 I python  :      from ethereum.tools import keys, new_statetest_utils, testutils, tester, _solidity
04-03 22:33:06.780  7579  7642 I python  :    File "/data/user/0/com.github.andremiras.etheroll/files/app/crystax_python/site-packages/ethereum/tools/new_statetest_utils.py", line 1, in <module>
04-03 22:33:06.780  7579  7642 I python  :      from ethereum.state import State
04-03 22:33:06.781  7579  7642 I python  :    File "/data/user/0/com.github.andremiras.etheroll/files/app/crystax_python/site-packages/ethereum/state.py", line 8, in <module>
04-03 22:33:06.781  7579  7642 I python  :      from ethereum import trie
04-03 22:33:06.782  7579  7642 I python  :    File "/data/user/0/com.github.andremiras.etheroll/files/app/crystax_python/site-packages/ethereum/trie.py", line 6, in <module>
04-03 22:33:06.782  7579  7642 I python  :      from ethereum.abi import is_string
04-03 22:33:06.782  7579  7642 I python  :    File "/data/user/0/com.github.andremiras.etheroll/files/app/crystax_python/site-packages/ethereum/abi.py", line 9, in <module>
04-03 22:33:06.783  7579  7642 I python  :      import yaml
04-03 22:33:06.783  7579  7642 I python  :    File "/data/user/0/com.github.andremiras.etheroll/files/app/crystax_python/site-packages/yaml/__init__.py", line 2, in <module>
04-03 22:33:06.784  7579  7642 I python  :      from error import *
04-03 22:33:06.784  7579  7642 I python  :  ImportError: No module named 'error'
04-03 22:33:06.969  7579  7642 I python  : Python for android ended.

This is because PyYAML will install the module for Python2 if you run Buildozer from Python2.

[AndreMiras]

Workaround with custom recipe 4be6be6#diff-fe722ecaea583ed70b6bc4df7dd541a3 since it will pickup Crystax hostpython (3.5) for installing.