Make DCS Calculator depend explicitly on sqlalchemy, fix code quality issues identified by flake8

Should make DCS Calculator work properly with LCG 95

This merge request affects 1 package:

• DataQuality/DCSCalculator2

added DQ master review-pending-level-1 labels

CI Result SUCCESS

	Athena	AthSimulation
externals
cmake
make
required tests
optional tests

Full details available at NICOS MR-24038-2019-06-07-18-03
Athena: number of compilation errors 0, warnings 1
AthSimulation: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST 141]

added 1 commit

• f68170f5 - Add DCSCalculator2 and DataQualityConfigurations back to Athena build in master

Compare with previous version

This merge request affects 2 packages:

• DataQuality/DCSCalculator2
• Projects/Athena

Adding @rbianchi as watcher

added Build label

CI Result SUCCESS

	Athena	AthSimulation
externals
cmake
make
required tests
optional tests

Full details available at NICOS MR-24038-2019-06-08-11-16
Athena: number of compilation errors 0, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 183]

added review-approved label and removed review-pending-level-1 label

Looks good, approving.

• Walter

mentioned in commit 98de7b80

merged

added sweep:ignore label