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I could not sleep well because I had many meetings last evening, and it stimulated my nerves.

• full-time job
• created a pull request: 543: Diameter of Binary Tree
• chest press, 30 minutes jog
  • I was about to throw up
• LeetCode 876. Middle of the Linked List (step 1, 2)
• checked the behavior of id()

In [1]: a, b = 'foobar', 'barbaz'

In [2]: a[:3] is b[:3]
Out[2]: False

In [3]: id(a[:3]) == id(b[:3])
Out[3]: True

In [4]: id(a[:3])
Out[4]: 4347335216

In [5]: id(b[:3])
Out[5]: 4347019760

StackOverflow - Why does id({}) == id({}) and id([]) == id([]) in CPython? [duplicated]

When evaluating id(a[:3]) == id(b[:3]), the first a[:3] seems to be garbage collected before evaluating id(b[:3]), and b[:3] seems to use the same address (with CPython).

TODO:

• check how many steps Python can take in a second
• check available facilities for passport request

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