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raimon49 2021/05/08
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Pythonã®hasattr()ã¯é…ã„? - Atsuo Ishimoto's blog
Pythonã«ã¯ã€ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã«ã‚ã‚‹åå‰ã®å±žæ€§ãŒå˜åœ¨ã™ã‚‹ã‹ã©ã†ã‹ã‚’ãƒã‚§ãƒƒã‚¯ã™ã‚‹ hasattr ã¨ã„ã†çµ„ã¿è¾¼ã¿é–¢æ•°ãŒã‚ã‚Šã¾ã™ã€‚ ä¾‹ãˆã°ã€ãƒªã‚¹ãƒˆã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã« append ã¨ã„ã†å±žæ€§ãŒå˜åœ¨ã™ã‚‹ã‹ã©ã†ã‹ç¢ºèªã™ã‚‹ã¨ãã¯ã€æ¬¡ã®ã‚ˆã†ã«ã‹ãã¾ã™ã€‚ InÂ [57]: L = [] print(hasattr(L, 'append')) print(L.append) True <built-in method append of list object at 0x7fbc80542d80> ãƒªã‚¹ãƒˆã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã«ã¯ append ã¨ã„ã†å±žæ€§ãŒå˜åœ¨ã—ã€ãƒ¡ã‚½ãƒƒãƒ‰ã ã¨ã„ã†ã“ã¨
raimon49 2021/01/09
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pythonè‡ªç¿’ãƒ†ã‚ã‚¹ãƒˆ [kirinwiki]
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raimon49 2018/11/17
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raimon49 2017/11/10
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raimon49 2014/11/20
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Pythonista ã‚‚ ï¿½ls ã‚’èªã‚€ã¹ãã‹ï¼Ÿ
Python Developers Festa 2013.11 ã§ã®ç™ºè¡¨è³‡æ–™ã§ã™ã€‚ https://github.com/pyspa/pyfes/blob/develop/201311.rst æ€§èƒ½è¨ˆæ¸¬çµæžœã¯ Solaris ç³»ã® OpenIndiana 151a ä¸Šã§å®Ÿæ–½ã—ãŸã‚‚ã®ã§ã™ã®ã§ã€ä»–ã® OS ã®å ´åˆã¯ç•°ãªã‚‹å‚¾å‘ã¨ãªã‚‹å¯èƒ½æ€§ã‚‚ã‚ã‚Šã¾ã™ã€‚
raimon49 2013/12/01
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raimon49 2012/11/15
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raimon49 2012/11/13
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raimon49 2012/04/18
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raimon49 2011/10/29
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~$ python -m timeit -n 1000 "[x for x in range(1000) if x in range(500, 1500)]" 1000 loops, best of 3: 28.2 msec per loop ~$ python -m timeit -n 1000 "set(range(1000)).intersection(range(500, 1500))" 1000 loops, best of 3: 120 usec per loop ãƒªã‚¹ãƒˆå†…åŒ…ãŒç´„235å€æ™‚é–“ã‹ã‹ã‚Šã¾ã™ãã€‚ãƒªã‚¹ãƒˆã‚’ã‚»ãƒƒãƒˆã«ã™ã‚‹ã®ã‚‚æ™‚é–“ã‹ã‹ã‚‰ãªã„ã®ã§ã€åˆä½µã‚„ã€äº¤å·®ã¯çµ¶å¯¾ set() ã‚’ä½¿ã£ãŸã»ã†ãŒã„ã„ã§ã™ãã€‚ Update range(500, 1500) ã‚’ 1000å›žãã‚‰ã„ã‚ˆã°ã‚Œã¦ã—ã¾ã£ã¦ã„ã‚‹ã®ã§ã€ä¸€å›žå‘¼ã³å‡ºã™ã‚ˆã†ã«ã™ã‚‹ã¨ã€ã€€28.2msec ãŒ 18.2msec ã«ãªã£ãŸã€‚ã¾
raimon49 2011/09/08
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raimon49 2011/01/23
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