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How to check if a column exists in Pandas
Is there a way to check if a column exists in a Pandas DataFrame?
3 Answers
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async await return Task
Can somebody explain what does this means into a synchronous method? If I try to change the method to async then VS complain about it.
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“ValueError: zero length field name in format” error in Python 3.0,3.1,3.2
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I'm gonna guess that you are running python 2.6 by accident somehow.
This feature is only available for at least 3.1 if you are using python 3, or 2.7 if you are using python 2.
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Open an IO stream from a local file or url
I know there are libs in other languages that can take a string that contains either a path to a local file or a url and open it as a readable IO stream.
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How can I specify working directory for popen
Is there a way to specify the running directory of command in Python's subprocess.Popen() ?
1 Answer
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vim repeat find next character 'x'
I often navigate in vim by f x to find next occurrence of character 'x',
but overlook that there is a word (or more words) containing 'x' in between the word I want to edit and the beginning cursor position.
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How do you get the magnitude of a vector in Numpy?
In keeping with the "There's only one obvious way to do it", how do you get the magnitude of a vector (1D array) in Numpy?
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Combining a class selector and an attribute selector with jQuery
Is it possible to combine both a class selector and an attribute selector with jQuery?
4 Answers
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cout is not a member of std
I'm practicing using mulitple files and header files etc. So I have this project which takes two numbers and then adds them. Pretty simple.
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How do I enable language extensions from within GHCi?
...NTypes. The -X part is a compiler switch, by the way, extension is called just RankNTypes.
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