PyQt5==5.8.2
hypothesis==3.6.0
pylint==1.7.2
pytest==3.0.4

astroid==1.5.3
PyQt5==5.8.2
hypothesis==3.6.0
pylint==1.7.2
pytest==3.0.4

Fix false pylint "unused variable" warning
Fix false pylint "unused variable" warning

A new version of 'astroid' package used by pylint causes warning upon
dynamically added vairable [1]. In order to prevent this, we use the
last version of astroid package having correct behavior.

1: https://github.com/PyCQA/pylint/issues/1609
