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What is the inverse function of zip in python? [duplicate]
I've used the zip() function from the numpy library to sort tuples and now I have a list containing all the tuples. I had since modified that list and now I would like to restore the tuples so I can use my data. How can I do this?
...
Does Java have a HashMap with reverse lookup?
...okup in both directions. Is there a name for this type of data structure, and is anything like this included in Java's standard libraries? (or maybe Apache Commons?)
...
What package naming convention do you use for personal/hobby projects in Java?
I'm already familiar with the standard Java package naming convention of using a domain name to create a unique package name (i.e. package com.stackoverflow.widgets ). However, I've never seen any recommendations for how to choose package names for personal projects. I assume because this is becaus...
Where is a complete example of logging.config.dictConfig?
...: 1,
'disable_existing_loggers': True,
'formatters': {
'standard': {
'format': '%(asctime)s [%(levelname)s] %(name)s: %(message)s'
},
},
'handlers': {
'default': {
'level': 'INFO',
'formatter': 'standard',
'c...
How do I convert an array object to a string in PowerShell?
...
$a = 'This', 'Is', 'a', 'cat'
Using double quotes (and optionally use the separator $ofs)
# This Is a cat
"$a"
# This-Is-a-cat
$ofs = '-' # after this all casts work this way until $ofs changes!
"$a"
Using operator join
# This-Is-a-cat
$a -join '-'
# ThisIsacat
-join $a...
Best Practice: Initialize JUnit class fields in setUp() or at declaration?
...ayList, with cases like testIndexOutOfBoundException, testEmptyCollection, and the like. The perspective there is of someone writing a class and making sure it works right.
You should probably do the same when testing your own classes: create your object in setUp or in a test method, so that you'll...
MySQL Workbench: How to keep the connection alive
...ilable internet archive:
Go to Edit -> Preferences -> SQL Editor and set to a higher value this parameter: DBMS connection read time out (in seconds). For instance: 86400.
Close and reopen MySQL Workbench. Kill your previously query that
probably is running and run the query again.
...
Use of Finalize/Dispose method in C#
...have to, but you give inheritors of your class a hook to call your Dispose and implement a finalizer themselves if they use unmanaged resources directly:
public class C : B
{
private IntPtr m_Handle;
protected override void Dispose(bool disposing)
{
if (disposing)
{
...
Convert tabs to spaces in Notepad++
...
I'm using v7.2.2 and I can change tabs to spaces using Edit -> Blank Operations -> Tab to Space. Also the Tab Settings are now in Edit -> Preferences -> Language. Although, I don't understand what the Tab Settings does. I've check...
What is the lifecycle of an AngularJS Controller?
...ller.
Controllers are not singletons. Anyone can create a new controller and they are never auto-destroyed. The fact is that it's generally bound to the life cycle of its underlying scope. The controller is not automatically destroyed whenever its scope is destroyed. However, after destroying an u...