[FLINK-14469] Drop Python 2 support

• Type: Task
• Status: Closed
• Priority: Major
• Resolution: Resolved
• Affects Version/s: 1.10.0
• Fix Version/s: 1.10.0
• Component/s: API / Python
• Labels: pull-request-available
• Release Note: Python 2 is not supported for PyFlink in 1.10.0. This is because Python 2 is coming to an end on Jan 1, 2020 and some third-party projects PyFlink depends on are also planning to drop Python 2 support.
• Assignee: Dian Fu
• Reporter: Dian Fu
• Created: 21/Oct/19 02:15
• Updated: 23/Oct/19 02:59
• Resolved: 21/Oct/19 15:43

Description

As discussed in the ML, the aim of this Jira is to drop the Python 2 support. This includes the following work:
1. Remove Python 2.7 CI tests
2. Throw an exception if Python below 3.5 is used
3. Clean up the code which is specific for Python 2.x

Issue Links

• links to: GitHub Pull Request #9947