大约有 44,000 项符合查询结果(耗时:0.0454秒) [XML]

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python pandas dataframe to dictionary

I've a two columns dataframe, and intend to convert it to python dictionary - the first column will be the key and the second will be the value. Thank you in advance. ...
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How to determine the encoding of text?

I received some text that is encoded, but I don't know what charset was used. Is there a way to determine the encoding of a text file using Python? How can I detect the encoding/codepage of a text file deals with C#. ...
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How to create directories recursively in ruby?

I want to store a file as /a/b/c/d.txt, but I do not know if any of these directories exist and need to recursively create them if necessary. How can one do this in ruby? ...
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The “backspace” escape character '\b': unexpected behavior?

So I'm finally reading through K&R , and I learned something within the first few pages, that there is a backspace escape character, \b . ...
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Reshape three column data frame to matrix (“long” to “wide” format) [duplicate]

I have a data.frame that looks like this. 6 Answers 6 ...
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Passing variable arguments to another function that accepts a variable argument list

So I have 2 functions that both have similar arguments 9 Answers 9 ...
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Ruby - elegantly convert variable to an array if not an array already

Given an array, a single element, or nil, obtain an array - the latter two being a single element array and an empty array respectively. ...
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Creating a new column based on if-elif-else condition

I have a DataFrame df : 4 Answers 4 ...
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What's the absurd function in Data.Void useful for?

The absurd function in Data.Void has the following signature, where Void is the logically uninhabited type exported by that package: ...
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Argparse: Way to include default values in '--help'?

Suppose I have the following argparse snippet: 3 Answers 3 ...