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Check if item is in an array / list

... @jdi, and that loop will run much faster than the one coded explicitly in Python, not to mention being easier to read. – Mark Ransom Jun 28 '12 at 19:44 ...
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Getting only 1 decimal place [duplicate]

...ing to represent it with only one digit: print("{:.1f}".format(number)) # Python3 print "%.1f" % number # Python2 or actually round off the other decimal places? round(number,1) or even round strictly down? math.floor(number*10)/10 ...
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How to get a random number between a float range?

...ndom number in the range [a, b) or [a, b] depending on rounding github.com/python/cpython/blob/… – Pavel Jun 4 '19 at 8:47 add a comment  |  ...
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Unpacking a list / tuple of pairs into two lists / tuples [duplicate]

... To the OP, stackoverflow.com/questions/5239856/foggy-on-asterisk-in-python is helpful if you don't know about the "splat" operator. – dicato Sep 26 '11 at 18:07 ...
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Negative list index? [duplicate]

... the end of the list, so n[-1] means the last item in the list n. Any good Python tutorial should have told you this. It's an unusual convention that only a few other languages besides Python have adopted, but it is extraordinarily useful; in any other language you'll spend a lot of time writing n[...
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numpy matrix vector multiplication [duplicate]

...pected, but I simply cannot find any information about how this is done in Python's Numpy module. 1 Answer ...
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PHP学习必看的一些书 - IT书籍推荐 - 清泛网 - 专注C/C++及内核技术

...言》经典 Golang: 《Learing Go》简单 《Go Web编程》 Python: 《Python 标准库》适合经常翻翻 《Python参考手册》 案头必读 《Python基础教程(第2版)》 基础必读 其他: 《数学之美》 文津图书奖科普获奖书,Google黑板报百...
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PHP学习必看的一些书 - PHP - 清泛IT论坛,有思想、有深度

...—C/C++语言》经典 Golang:《Learing Go》简单《Go Web编程》 Python:《Python 标准库》适合经常翻翻《Python参考手册》 案头必读《Python基础教程(第2版)》 基础必读 其他:《数学之美》 文津图书奖科普获奖书,Google黑板报百万点击!...
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Split string every nth character?

...you tell it. The above answer is really only just a for loop but expressed pythonically. Also, if you need to remember a "simplistic" answer, there are at least hundreds of thousands of ways to remember them: starring the page on stackoverflow; copying and then pasting into an email; keeping a "help...
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How to save traceback / sys.exc_info() values in a variable?

... For Python3, exc_tuple[1] (aka value) is the instance of the exception, not the "String passed as parameter". See: docs.python.org/3/library/sys.html#sys.exc_info – Jinghao Shi Oct 6 '18 at ...