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What is the fastest way to get the value of π?
...not by a long shot, not by any reasonable measure. Also, it all depends on what kind of accuracy you are looking for. The fastest π I know of is the one with the digits hard coded. Looking at Pi and Pi[PDF], there are a lot of formulae.
Here is a method that converges quickly — about 14 digits p...
Threading pool similar to the multiprocessing Pool?
...sed Pool interface in the multiprocessing module, however it is hidden somewhat and not properly documented.
It can be imported via
from multiprocessing.pool import ThreadPool
It is implemented using a dummy Process class wrapping a python thread. This thread-based Process class can be found in...
How to print like printf in Python3?
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Python 3.6 introduced f-strings for inline interpolation. What's even nicer is it extended the syntax to also allow format specifiers with interpolation. Something I've been working on while I googled this (and came across this old question!):
print(f'{account:40s} ({ratio:3.2f}) -...
How to get JavaScript caller function line number? How to get JavaScript caller source URL?
... Works in node too. Pop this inside your custom log() function (which adds whatever other useful workarounds you need - eg fixed for Chrome array logging) and still line numbers from wherever you called log().
– mikemaccana
Apr 17 '12 at 12:16
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Mongod complains that there is no /data/db folder
... permissions and ownership of the '/data/db/' directory, do this:
(this is what the permissions and ownership should look like)
$ ls -ld /data/db/
drwxr-xr-x 4 mongod mongod 4096 Oct 26 10:31 /data/db/
The left side 'drwxr-xr-x' shows the permissions for the User, Group, and Others.
'mongod mong...
Getting a timestamp for today at midnight?
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$timestamp = strtotime('today midnight');
You might want to take a look what PHP has to offer: http://php.net/datetime
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Filter by process/PID in Wireshark
...t onto the wire (generally speaking), plus Wireshark allows you to look at what's on the wire - potentially all machines which are communicating over the wire. Process IDs aren't unique across different machines, anyway.
sha...
How could I use requests in asyncio?
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What does the connector do here?
– Markus Meskanen
Oct 7 '15 at 19:41
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Functional style of Java 8's Optional.ifPresent and if-not-Present?
...onal way of development when you have the value and want to process it but what if I want to define the functionality and the execution will be then, check below enhancement;
public class OptionalConsumer<T> implements Consumer<Optional<T>> {
private final Consumer<T> c;
pri...
How to set an environment variable only for the duration of the script?
...me PATH=$PATH:XYZ echo $PATH | grep XYZ doesn't have any output though? 2. What is the difference between using and not using env?
– qubodup
Mar 23 '15 at 1:27
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