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How do I merge a list of dicts into a single dict?
... d in L:
... result.update(d)
...
>>> result
{'a':1,'c':1,'b':2,'d':2}
As a comprehension:
# Python >= 2.7
{k: v for d in L for k, v in d.items()}
# Python < 2.7
dict(pair for d in L for pair in d.items())
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If vs. Switch Speed
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answered Jan 14 '09 at 23:16
Konrad RudolphKonrad Rudolph
461k118118 gold badges863863 silver badges11101110 bronze badges
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C# LINQ find duplicates in List
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edited Mar 28 '18 at 5:05
Vadim Ovchinnikov
9,91644 gold badges3939 silver badges6969 bronze badges
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What is the leading LINQ for JavaScript library? [closed]
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answered Mar 19 '10 at 21:17
Richard Anthony HeinRichard Anthony Hein
9,78333 gold badges3939 silver badges5959 bronze badges
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win7 安装项目管理工具redmine2.5.1 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
win7 安装项目管理工具redmine2.5.1〇、选择redmine最近项目中需要用到一个bug tracker工具，在摇摆不定之后，最终选了redmine，在此之前，我还没有搭建过类似的管理工具，现...〇、选择redmine
最近项目中需要用到一个bug tracker工具，...
Android WebView style background-color:transparent ignored on android 2.2
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22 Answers
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Active
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Open popup and refresh parent page on close popup
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231
You can access parent window using 'window.opener', so, write something like the following in ...
Using getopts to process long and short command line options
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32 Answers
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Combining two Series into a DataFrame in pandas
I have two Series s1 and s2 with the same (non-consecutive) indices. How do I combine s1 and s2 to being two columns in a DataFrame and keep one of the indices as a third column?
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Can you break from a Groovy “each” closure?
...k.
This example will abort before processing the whole list:
def a = [1, 2, 3, 4, 5, 6, 7]
a.find {
if (it > 5) return true // break
println it // do the stuff that you wanted to before break
return false // keep looping
}
Prints
1
2
3
4
5
but doesn't print 6 or 7.
It's al...