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Created on 2017-04-09 06:16 by iMath, last changed 2022-04-11 14:58 by admin. This issue is now closed.
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| msg291353 - (view) | Author: Philip Lee (iMath) | Date: 2017-04-09 06:16 | |
There example code here becomes invalid https://docs.python.org/3/faq/programming.html#why-do-lambdas-defined-in-a-loop-with-different-values-all-return-the-same-result >>> squares = [] >>> for x in range(5): squares.append(lambda: x**2) >>> squares [<function <lambda> at 0x01FB7A08>, <function <lambda> at 0x01F82390>, <function <lambda> at 0x01FBA3D8>, <function <lambda> at 0x01FBA420>, <function <lambda> at 0x01FBA468>] >>> There returned value is a List of lambda functions, not numbers |
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| msg291379 - (view) | Author: Eric V. Smith (eric.smith) *  |
Date: 2017-04-09 14:29 | |
That's consistent with the example: it's showing you how to create a list of functions, that when called, return squares. "This gives you a list that contains 5 lambdas that calculate x**2" Maybe "squares" isn't the most awesome name, but I think if you read the example in its entirety, it's all consistent and correct. |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:58:45 | admin | set | github: 74209 |
| 2017-04-09 15:38:34 | eric.smith | set | status: open -> closed resolution: not a bug stage: resolved |
| 2017-04-09 14:29:22 | eric.smith | set | nosy:
+ eric.smith messages: + msg291379 |
| 2017-04-09 06:16:55 | iMath | create | |