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Delete rows from a pandas DataFrame based on a conditional expression involving len(string) giving K
I have a pandas DataFrame and I want to delete rows from it where the length of the string in a particular column is greater than 2.
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I do not want to inherit the child opacity from the parent in CSS
I do not want to inherit the child opacity from the parent in CSS.
14 Answers
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How to change the output color of echo in Linux
I am trying to print a text in the terminal using echo command.
30 Answers
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How do multiple clients connect simultaneously to one port, say 80, on a server? [duplicate]
I understand the basics of how ports work. However, what I don't get is how multiple clients can simultaneously connect to say port 80. I know each client has a unique (for their machine) port. Does the server reply back from an available port to the client, and simply state the reply came from 80? ...
Is it better to call ToList() or ToArray() in LINQ queries?
I often run into the case where I want to eval a query right where I declare it. This is usually because I need to iterate over it multiple times and it is expensive to compute. For example:
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What's the point of malloc(0)?
I just saw this code:
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Custom numeric format string to always display the sign
Is there any way I can specify a standard or custom numeric format string to always output the sign, be it +ve or -ve (although what it should do for zero, I'm not sure!)
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RegEx to parse or validate Base64 data
Is it possible to use a RegEx to validate, or sanitize Base64 data? That's the simple question, but the factors that drive this question are what make it difficult.
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How to access the ith column of a NumPy multidimensional array?
Suppose I have:
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What is the difference between 127.0.0.1 and localhost
Assuming the following is defined in .../hosts :
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