PEP8 fixes for dashboard_stats.py
PEP8 fixes for dashboard_stats.py

stanford-futuredata/macrobase,stanford-futuredata/macrobase,kexinrong/macrobase,kexinrong/macrobase,stanford-futuredata/macrobase,stanford-futuredata/macrobase,kexinrong/macrobase,kexinrong/macrobase,kexinrong/macrobase,kexinrong/macrobase,kexinrong/macrobase,stanford-futuredata/macrobase