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How to install packages offline?
...
If the package is on PYPI, download it and its dependencies to some local directory.
E.g.
$ mkdir /pypi && cd /pypi
$ ls -la
-rw-r--r-- 1 pavel staff 237954 Apr 19 11:31 Flask-WTF-0.6.tar.gz
-rw-r--r-- 1 pavel staff 389741 Feb 22 17:10 Jinja2-2.6.tar.gz
-rw-r--r--...
How to exit a function in bash
...eeds to be taken with set -e and returning non-zero values, as that caught me by surprise in the past.
– Yevgeniy Brikman
Jul 12 '19 at 21:19
add a comment
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How to implement classic sorting algorithms in modern C++?
...std::sort algorithm (and its cousins std::partial_sort and std::nth_element ) from the C++ Standard Library is in most implementations a complicated and hybrid amalgamation of more elementary sorting algorithms , such as selection sort, insertion sort, quick sort, merge sort, or heap sort.
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Creating a new directory in C
.../stat.h>
#include <unistd.h>
struct stat st = {0};
if (stat("/some/directory", &st) == -1) {
mkdir("/some/directory", 0700);
}
You can see the manual of these functions with the man 2 stat and man 2 mkdir commands.
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What is the difference between ApplicationContext and WebApplicationContext in Spring MVC?
...WebApplicationContext will also be able to use ServletContext if they implement ServletContextAware interface
package org.springframework.web.context;
public interface ServletContextAware extends Aware {
void setServletContext(ServletContext servletContext);
}
There are many things possibl...
How can I map True/False to 1/0 in a Pandas DataFrame?
I have a column in python pandas DataFrame that has boolean True/False values, but for further calculations I need 1/0 representation. Is there a quick pandas/numpy way to do that?
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How do I execute a program using Maven?
..., declare the phase to which you want to bind the goal in the execution element:
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.4</version>
<executions>
<execution>
<id>...
How to add calendar events in Android?
I'm just getting up to speed on Android, and today in a project meeting someone said that Android has no native calendar app so users just use whatever calendar app they like.
...
Are Duplicate HTTP Response Headers acceptable?
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Yes
HTTP RFC2616 available here says:
Multiple message-header fields with the same field-name MAY be present
in a message if and only if the entire field-value for that header
field is defined as a comma-separated list [i.e., #(values)]. It MUST
be possible to combi...
What does 'var that = this;' mean in JavaScript?
... answer with an illustration:
var colours = ['red', 'green', 'blue'];
document.getElementById('element').addEventListener('click', function() {
// this is a reference to the element clicked on
var that = this;
colours.forEach(function() {
// this is undefined
// that i...