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Is it worth using Python's re.compile?
....compile. If we call it, we bypass the cache. It turns out to be about two orders of magnitude slower for a basic regular expression, such as r'\w+\s+([0-9_]+)\s+\w*'.
Here's my test:
#!/usr/bin/env python
import re
import time
def timed(func):
def wrapper(*args):
t = time.time()
...
How to apply a function to two columns of Pandas dataframe
...ames in the function instead of indexes then you don't need to worry about order changing, or get the index by name e.g. see stackoverflow.com/questions/13021654/…
– Davos
Mar 22 '18 at 7:19
...
Unknown column in 'field list' error on MySQL Update query
...Thank you. I was trying to figure out why my query in PHP was not working, all I had to do was add the single quotes.
– RiCHiE
Jul 2 '16 at 5:12
1
...
ActionController::InvalidAuthenticityToken
...ts some headers with more information about the original client request in order to be able to apply various processing tasks and security measures.
More details are available here: https://github.com/rails/rails/issues/22965.
TL;DR: the solution is to add some headers:
upstream myapp {
server ...
How can I make the cursor turn to the wait cursor?
...weren't on top?)
Here's the main log, which shows things happening in the order we expect:
16:51:33.1064 Launching lengthy operation...
16:51:33.1215 Task Start
16:51:33.1215 Before Await
16:51:33.1215 ...Lengthy operation launched.
16:51:49.1276 After await
16:51:49.1537 Finally
...
Validating IPv4 addresses with regexp
...ress. Anyone that wishes to edit this answer, please comment first here in order to avoid problems like these - I usually reply pretty fast. Always looking for a shorter/better solution of course.
– Danail Gabenski
Dec 25 '19 at 6:16
...
Generate a heatmap in MatPlotLib using a scatter data set
...y (e.g., square bins don't,
e.g., the distance from a point on a square's border to a point
inside that square is not everywhere equal) and
hexagon is the highest n-polygon that gives regular plane
tessellation (i.e., you can safely re-model your kitchen floor with hexagonal-shaped tiles because you...
Coding Practices which enable the compiler/optimizer to make a faster program
...
The order you traverse memory can have profound impacts on performance and compilers aren't really good at figuring that out and fixing it. You have to be conscientious of cache locality concerns when you write code if you care a...
Is inject the same thing as reduce in ruby?
...many other programming languages and in Mathematics. Ruby aliases a lot in order to be intuitive to programmers with different backgrounds. If you want to use #length on an Array, you can. If you want to use #size, that's fine too!
...
How to make Entity Framework Data Context Readonly
...nly querying capabilities of DbContext. Let's say you have an entity named Order, then you would use ReadOnlyDataContext instance in a way like below.
readOnlyDataContext.Set<Order>().Where(q=> q.Status==OrderStatus.Delivered).ToArray();
...