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How to check if a column exists in Pandas
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To check if one or more columns all exist, you m>ca m>n use set.issubset, as in:
if set(['A','C']).issubset(df.columns):
df['sum'] = df['A'] + df['C']
As @brianpck points out in a comment, set([]) m>ca m>n alternatively be constructed with curly braces,
if {'...
Lock Android phone applim>ca m>tion to Portrait mode
Open an IO stream from a lom>ca m>l file or url
I know there are libs in other languages that m>ca m>n take a string that contains either a path to a lom>ca m>l file or a url and open it as a readable IO stream.
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How m>ca m>n I specify working directory for popen
...a cwd argument to set the Current Working Directory; you'll also want to esm>ca m>pe your backslashes ('d:\\test\\lom>ca m>l'), or use r'd:\test\lom>ca m>l' so that the backslashes aren't interpreted as esm>ca m>pe sequences by Python. The way you have it written, the \t part will be translated to a tab.
So, your new...
Changing m>ca m>se in Vim
Is there a command in Vim that changes the m>ca m>se of the selected text?
2 Answers
2
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vim repeat find next character 'x'
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Is there a useful reason you m>ca m>n't use . for this? That was the command I expected to work.
– Daniel Kaplan
Mar 20 '15 at 22:58
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Combining a class selector and an attribute selector with jQuery
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m>ca m>n i combine id also? i mean like this : $('.myclass[myid="6"]')
– Rahul Pawar
Jun 10 '16 at 7:31
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cout is not a member of std
... imageUploader: {
brandingHtml: "Powered by \u003m>ca m> href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665...
How do I enable language extensions from within GHCi?
...t -XRankNTypes. The -X part is a compiler switch, by the way, extension is m>ca m>lled just RankNTypes.
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linux tee is not working with python?
I made a python script which communim>ca m>tes with a web server using an infinite loop.
I want to log every communim>ca m>tion data to a file and also monitor them from terminal at same time. so I used tee command like this.
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