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Length of generator output [duplicate]
Python provides a nice <em>mem>ethod for getting length of an eager iterable, len(x) that is. But I couldn't find anything si<em>mem>ilar for lazy iterables represented by generator co<em>mem>prehensions and functions. Of course, it is not hard to write so<em>mem>ething like:
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How to convert a unix ti<em>mem>esta<em>mem>p (seconds since epoch) to Ruby DateTi<em>mem>e?
How do you convert a Unix ti<em>mem>esta<em>mem>p (seconds since epoch) to Ruby DateTi<em>mem>e?
6 Answers
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Convert a ti<em>mem>edelta to days, hours and <em>mem>inutes
I've got a ti<em>mem>edelta. I want the days, hours and <em>mem>inutes fro<em>mem> that - either as a tuple or a dictionary... I'<em>mem> not fussed.
7...
How can I undo git reset --hard HEAD~1?
Is it possible to undo the changes caused by the following co<em>mem><em>mem>and? If so, how?
18 Answers
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How does inline Javascript (in HT<em>Mem>L) work?
...upplied to the inline code.
&a<em>mem>p;lt;a href="#" onclick="alert(this)"&a<em>mem>p;gt;Click <em>Mem>e&a<em>mem>p;lt;/a&a<em>mem>p;gt;
is actually closer to:
&a<em>mem>p;lt;a href="#" id="click_<em>mem>e"&a<em>mem>p;gt;Click <em>Mem>e&a<em>mem>p;lt;/a&a<em>mem>p;gt;
&a<em>mem>p;lt;script type="text/javascript"&a<em>mem>p;gt;
docu<em>mem>ent.getEle<em>mem>entById('click_<em>mem>e').addEventListener("click", function(event) {
(function(eve...
Using Python 3 in virtualenv
Using virtualenv , I run <em>mem>y projects with the default version of Python (2.7). On one project, I need to use Python 3.4.
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What could cause java.lang.reflect.InvocationTargetException?
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You've added an extra level of abstraction by calling the <em>mem>ethod with reflection. The reflection layer wraps any exception in an InvocationTargetException, which lets you tell the difference between an exception actually caused by a failure in the reflection call (<em>mem>aybe your argu<em>mem>en...
Why is <em>Mem>ATLAB so fast in <em>mem>atrix <em>mem>ultiplication?
I a<em>mem> <em>mem>aking so<em>mem>e bench<em>mem>arks with CUDA, C++, C#, Java, and using <em>Mem>ATLAB for verification and <em>mem>atrix generation. When I perfor<em>mem> <em>mem>atrix <em>mem>ultiplication with <em>Mem>ATLAB, 2048x2048 and even bigger <em>mem>atrices are al<em>mem>ost instantly <em>mem>ultiplied.
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How can you profile a Python script?
Project Euler and other coding contests often have a <em>mem>axi<em>mem>u<em>mem> ti<em>mem>e to run or people boast of how fast their particular solution runs. With Python, so<em>mem>eti<em>mem>es the approaches are so<em>mem>ewhat kludgey - i.e., adding ti<em>mem>ing code to __<em>mem>ain__ .
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Python debugging tips [closed]
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PDB
You can use the pdb <em>mem>odule, insert pdb.set_trace() anywhere and it will function as a breakpoint.
&a<em>mem>p;gt;&a<em>mem>p;gt;&a<em>mem>p;gt; i<em>mem>port pdb
&a<em>mem>p;gt;&a<em>mem>p;gt;&a<em>mem>p;gt; a="a string"
&a<em>mem>p;gt;&a<em>mem>p;gt;&a<em>mem>p;gt; pdb.set_trace()
--Return--
&a<em>mem>p;gt; &a<em>mem>p;lt;stdin&a<em>mem>p;gt;(1)&a<em>mem>p;lt;<em>mem>odule&a<em>mem>p;gt;()-&a<em>mem>p;gt;None
(Pdb) p a...