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WAMP error: Forbidden You don't have permission to access /phpmyadmin/ on this server
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Akhil ThayyilAkhil Thayyil
8,36455 gold badges2727 silver badges4242 bronze badges
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range() for floats
...nswer over the accepted one, because the first two solutions presented are based on iterating over integers and deriving the final floats from the integers. This is more robust. If you do it directly with floats, you risk having strange one-off errors due to how floats are represented internally. Fo...
The JPA hashCode() / equals() dilemma
...eptively hard to implement correctly when
objects are persisted to a database. However, the problems stem
entirely from allowing objects to exist without an id before they are
saved. We can solve these problems by taking the responsibility of
assigning object IDs away from object-relational ...
How can I shuffle the lines of a text file on the Unix command line or in a shell script?
... to head.
A performance comparison is made.
POSIX-compliant function based on awk, sort, and cut, adapted from the OP's own answer:
shuf() { awk 'BEGIN {srand(); OFMT="%.17f"} {print rand(), $0}' "$@" |
sort -k1,1n | cut -d ' ' -f2-; }
Perl-based function - adapted from Moo...
Distributed sequence number generation?
...d service, i.e. you make a network call to get a unique ID;
which produces 64 bit unique IDs that are ordered by generation time;
and the service is highly scalable and (potentially) highly available; each instance can generate many thousand IDs per second, and you can run multiple instances on your...
Change bootstrap navbar collapse breakpoint without using LESS
...clude navbar-expand-* the mobile menu will be used at all widths. Here's a demo of all 6 navbar states: Bootstrap 4 Navbar Example
You can also use a custom breakpoint (???px) by adding a little CSS. For example, here's 1300px..
@media (min-width: 1300px){
.navbar-expand-custom {
flex-...
Threading pool similar to the multiprocessing Pool?
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I just found out that there actually is a thread-based 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 cla...
Convert HH:MM:SS string to seconds only in javascript
... Math.pow is very slow and can be avoided as shown in other answers based on reduce
– Alejadro Xalabarder
May 3 at 13:57
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show 1 mor...
Difference between __getattr__ vs __getattribute__
...ve from object, old-style classes are those in Python 2.x with no explicit base class. But the distinction between old-style and new-style classes is not the important one when choosing between __getattr__ and __getattribute__.
You almost certainly want __getattr__.
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Compare double to zero using epsilon
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Assuming 64-bit IEEE double, there is a 52-bit mantissa and 11-bit exponent. Let's break it to bits:
1.0000 00000000 00000000 00000000 00000000 00000000 00000000 × 2^0 = 1
The smallest representable number greater than 1:
1.0000 ...