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How to convert index of a pandas dataframe into a column?
...the index into the columns (one column per level) and creates an int index from 0 to len(df)-1
– BallpointBen
Jan 10 '19 at 19:52
2
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When should I use GC.SuppressFinalize()?
... Hi, Why do we need to call dispose with false as parameter from finalizer? What if the dispose never got called and then it wont dispose? What if we just check for whether the object has been disposed or not and do the actual cleanup.
– Dreamer
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.NET unique object identifier
...e a mapping using weak references (to avoid preventing garbage collection) from a reference to an ID of your choosing (GUID, integer, whatever). That would add a certain amount of overhead and complexity, however.
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How to copy an object in Objective-C
...l - the Objective C manual calls such an object "functionally independent" from it's original. Because the mechanisms for making these "intelligent" copies varies from class to class, we ask the objects themselves to perform them. This is the NSCopying protocol.
You want the latter. If this is one...
How do I copy a file in Python?
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shutil has many methods you can use. One of which is:
from shutil import copyfile
copyfile(src, dst)
Copy the contents of the file named src to a file named dst.
The destination location must be writable; otherwise, an IOError exception will be raised.
If dst already exists, ...
Including JavaScript class definition from another file in Node.js
...": "module"
}
user.js
export default class User {}
server.js
import User from './user.js'
let user = new User()
Note
⚠️ Don't use globals, it creates potential conflicts with the future code.
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Python CSV error: line contains NULL byte
...at if the file is really dodgy e.g. no \r or \n within reasonable distance from the start of the file, the line number reported by reader.line_num will be (unhelpfully) 1. Find where the first \x00 is (if any) by doing
data = open('my.csv', 'rb').read()
print data.find('\x00')
and make sure that ...
Advantages of stateless programming?
...in a functional paradigm than in an imperative paradigm.
I actually find (from personal experience) that programming in F# matches the way I think better, and so it's easier. I think that's the biggest difference. I've programmed in both F# and C#, and there's a lot less "fighting the language" in...
How to replace spaces in file names using a bash script
...ively replace spaces with underscores in file and directory names starting from a given root directory? For example:
18 Ans...
Is there a version of JavaScript's String.indexOf() that allows for regular expressions?
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If you prefer to pull it from npm, these two util functions are now on NPM as: npmjs.com/package/index-of-regex
– Capaj
Oct 26 '16 at 19:40
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