Time to Upgrade Your Python: TLS v1.2 Will Soon Be Mandatory

If you’re using an older Python without the most secure TLS implementation, this is the year to get serious about upgrading. Otherwise next …

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Sort Binary Tree by Levels Using Python

The challenge You are given a binary tree: Your task is to return the list with elements from tree sorted by levels, which means the root element goes first, then root children (from left to right) are second and third, and so on. Return empty list if roo... (more…)

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