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UnboundLocalError on local variable when reassigned after first use
The following code works as expected in both Python 2.5 and 3.0:
12 Answers
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How to declare a global variable in JavaScript?
How can I declare a global variable in JavaScript?
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深入浅出计算机字符集编码 - C/C++ - 清泛网 - 专注C/C++及内核技术
...面编码方式统一为UTF-8，后台代码（包括UT测试代码）以EUC_JP编码，要求前台输入日文半角片假名后台通过正则表达式能够验证通过，正则表达式为“^(([\x20-\x7e])|(\x8e[\xa6-\xdf])){1,32}$“。现在问题是UT测试代码能够通过，而前台输...
Can I split an already split hunk with git?
I've recently discovered git's patch option to the add command, and I must say it really is a fantastic feature.
I also discovered that a large hunk could be split into smaller hunks by hitting the s key, which adds to the precision of the commit.
But what if I want even more precision, if the...
BCL (Base Class Library) vs FCL (Framework Class Library)
What's the difference between the two? Can we use them interchangeably?
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Is it possible to capture a Ctrl+C signal and run a cleanup function, in a “defer” fashion?
I want to capture the Ctrl+C ( SIGINT ) signal sent from the console and print out some partial run totals.
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How to check a string for specific characters?
How can I check if a string has several specific characters in it using Python 2?
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How to get all possible combinations of a list’s elements?
I have a list with 15 numbers in, and I need to write some code that produces all 32,768 combinations of those numbers.
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What is the difference between trie and radix trie data structures?
Are the trie and radix trie data structures the same thing?
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