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Is a Python dictionary an example of a hash table?
One of the basic data structures in Python is the dictionary, which allows one to record "keys" for looking up "values" of any type. Is this implemented internally as a hash table? If not, what is it?
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error: Unable to find vcvarsall.bat
I tried to install the Python package dulwich :
42 Answers
42
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Which data type for latitude and longitude?
...y) which can be your lat / long. Occupies 16 bytes: 2 float8 numbers internally.
Or make it two columns of type float (= float8 or double precision). 8 bytes each.
Or real (= float4) if additional precision is not needed. 4 bytes each.
Or even numeric if you need absolute precision. 2 bytes for eac...
Regex exactly n OR m times
...character before) as you can see here: https://regex101.com/r/oC5oJ4/1
Finally, to match the one character distant match, you can add a positive look ahead (?=) on the "no 'x' after" or a positive look behind (?<=) on the "no 'x' before", like this: https://regex101.com/r/mC4uX3/1
(?<=[^x]|^...
How to commit no change and new message?
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There's rarely a good reason to do this, but the parameter is --allow-empty for empty commits (no files changed), in contrast to --allow-empty-message for empty commit messages. You can also read more by typing git help commit or visiting the online documentation.
While the tree object (w...
C++ Exceptions questions on rethrow of original exception
...he catch cause the rethrown exception to see the effect of append() being called?
4 Answers
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Custom li list-style with font-awesome icon
...introduces the ::marker pseudo-element. From what I've understood it would allow such a thing. Unfortunately, no browser seems to support it.
What you can do is add some padding to the parent ul and pull the icon into that padding:
ul {
list-style: none;
padding: 0;
}
li {
padding-l...
Chrome Extension Message passing: response not sent
...will keep the message channel open to the other end until sendResponse is called).
So you just need to add return true; after the call to getUrls to indicate that you'll call the response function asynchronously.
share
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Increase number of axis ticks
I'm generating plots for some data, but the number of ticks is too small, I need more precision on the reading.
5 Answers...
Push to GitHub without a password using ssh-key
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Here's a quick one-liner shell command that will automatically change your https url to the appropriate git one (Only works for github urls!): git remote set-url origin $(git remote show origin | grep "Fetch URL" | sed 's/ *Fetch URL: //' | sed 's/https:\/\/github.com\//git@github.c...