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Hashing a dictionary?
...dictionary is not nested, you could make a frozenset with the dict's items and use hash():
hash(frozenset(my_dict.items()))
This is much less computationally intensive than generating the JSON string or representation of the dictionary.
UPDATE: Please see the comments below, why this approach mi...
How to implement a ConfigurationSection with a ConfigurationElementCollection
I am trying to implement a custom configuration section in a project and I keep running up against exceptions that I do not understand. I am hoping someone can fill in the blanks here.
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Creating java date object from year,month,day
...ood Answer, but specify a time zone if known. A LocalDate has no time zone and so does not represent an exact moment on the timeline. If your context indicates a time zone, apply it to get a ZonedDateTime object: LocalDate.parse("2015-12-22").atStartOfDay( ZoneId.of( "America/Montreal" ) )
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How to monitor the memory usage of Node.js?
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node-memwatch : detect and find memory leaks in Node.JS code.
Check this tutorial Tracking Down Memory Leaks in Node.js
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In Python, how do I create a string of n characters in one line of code?
...e same letter 10 times:
string_val = "x" * 10 # gives you "xxxxxxxxxx"
And if you want something more complex, like n random lowercase letters, it's still only one line of code (not counting the import statements and defining n):
from random import choice
from string import ascii_lowercase
n = ...
Compare DATETIME and DATE ignoring time portion
... to the date-part of the day after DF2.
I.e. (DF1 >= CAST(DF2 AS DATE)) AND (DF1 < DATEADD(dd, 1, CAST(DF2 AS DATE)))
NOTE: It is very important that the comparison is >= (equality allowed) to the date of DF2, and (strictly) < the day after DF2. Also the BETWEEN operator doesn't work bec...
Python Process Pool non-daemonic?
...s creates the worker processes in its __init__ method, makes them daemonic and starts them, and it is not possible to re-set their daemon attribute to False before they are started (and afterwards it's not allowed anymore). But you can create your own sub-class of multiprocesing.pool.Pool (multiproc...
Node.js client for a socket.io server
I have a socket.io server running and a matching webpage with a socket.io.js client. All works fine.
5 Answers
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How do .gitignore exclusion rules actually work?
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@meowsqueak You could possibly ignore /a/b/c and then write a hook to git add --force any matching file pre-commit or something
– Chris
Jun 8 '10 at 23:42
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What are “signed” cookies in connect/expressjs?
...igure out what "signed cookies" actually are.
There isn't much on the net, and if I try this:
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