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Pandas convert dataframe to array of tuples
I have manipulated some data using pandas and now I want to carry out a batch save back to the database. This requires me to convert the dataframe into an array of tuples, with each tuple corresponding to a "row" of the dataframe.
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How does SSL really work?
...ings they are allowed to sign (other certificates), and their public key.
Now if I have a copy of that Verisign certificate, I can use that to validate the signature on the server certificate for the website I want to visit. Easy, right?!
Well, not so fast. I had to get the Verisign certificate fr...
how to convert from int to char*?
The only way I know is:
9 Answers
9
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What is android:weightSum in android, and how does it work?
I want to know: What is android:weightSum and layout weight, and how do they work?
9 Answers
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How to select multiple files with ?
...s not user friendly, the avarage user doesn't understand it, doesn't even know what a "ctrl button" does, and it cannot select files in different folders.
– Jean-Paul
Jan 30 '17 at 16:04
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How do I make the first letter of a string uppercase in JavaScript?
...g.prototype (this answer used to as well), but I would advise against this now due to maintainability (hard to find out where the function is being added to the prototype and could cause conflicts if other code uses the same name / a browser adds a native function with that same name in future).
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Generate random password string with requirements in javascript
...loor(Math.random() * x.length)] }).join('');
With Letter / Number Rules
Now, a variation on the above. This will generate three random strings from the given charsets (letter, number, either) and then scramble the result.
Please note the below uses sort() for illustrative purposes only. For pro...
Understanding Node.js modules: multiple requires return the same object?
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is this last caveat still true now that npm would install A,B, and APP in a flat directory structure? If not, how can a module be set up to cache its results between multiple other modules?
– Michael
Aug 7 '17 at 22:...
How do you remove duplicates from a list whilst preserving order?
...n that removes duplicates from list in Python, whilst preserving order? I know that I can use a set to remove duplicates, but that destroys the original order. I also know that I can roll my own like this:
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How to pretty print XML from Java?
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Back in 2008 this was a good answer, but now this can all be done with standard JDK classes rather than Apache classes. See xerces.apache.org/xerces2-j/faq-general.html#faq-6. Yes this is a Xerces FAQ but the answer covers standard JDK classes. The initial 1.5 imple...