Check if number is between given range

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Hidden features of Python [closed] 191 answers

How does interval comparison work? 2 answers

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this is 'how exactly this statement gets executed'

import dis

def f(n):
    return 10<=n<=100

print(dis.dis(f))

which gives

  6           0 LOAD_CONST               1 (10)
              3 LOAD_FAST                0 (n)
              6 DUP_TOP
              7 ROT_THREE
              8 COMPARE_OP               1 (<=)
             11 JUMP_IF_FALSE_OR_POP    21
             14 LOAD_CONST               2 (100)
             17 COMPARE_OP               1 (<=)
             20 RETURN_VALUE
        >>   21 ROT_TWO
             22 POP_TOP
             23 RETURN_VALUE

but did you really want to know that?

Chaining comparison operators may be a good reference.

It's really translating into 10 < n and n < 100

---

In python, these kind of double conditions are executed as consecutives ands, so:

10 <= n <= 100

is equal to:

(10 <= n) and (n <= 100)

And it returns a boolean that can either be True or False depending on whether the statement is met.

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