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Argparse: Required arguments listed under “optional arguments”?
...them is required. Unfortunately, when the user runs the script without providing the argument, the displayed usage/help text does not indicate that there is a non-optional argument, which I find very confusing. How can I get python to indicate that an argument is not optional?
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Do I encode ampersands in ?
...
Yes, it is. HTML entities are parsed inside HTML attributes, and a stray & would create an ambiguity. That's why you should always write & instead of just & inside all HTML attributes.
That said, only & and quotes need to be encoded. If you hav...
How to start two threads at “exactly” the same time
...rrier gate = new CyclicBarrier(3);
Thread t1 = new Thread(){
public void run(){
gate.await();
//do stuff
}};
Thread t2 = new Thread(){
public void run(){
gate.await();
//do stuff
}};
t1.start();
t2.start();
// At this point, t1 and t2 are bl...
Why use HttpClient for Synchronous Connection
... use HttpClient over WebRequest is concerned, well, HttpClient is the new kid on the block and could contain improvements over the old client.
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URL matrix parameters vs. query parameters
...geable, however, query parameters are generally better supported and more widely recognized. In general, I would recommend that you stick with query parameters for things like HTML forms and simple, single-level HTTP APIs.
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How to completely remove borders from HTML table
..."priority" calculated and what border styles are "stronger" (double vs. solid etc.).
I did like this:
<table cellspacing="0" cellpadding="0">
<tr>
<td class="first">first row</td>
</tr>
<tr>
<td class="second">second row</td>
</tr...
What is an uninterruptible process?
... process which tells the cpu to slow down a bit and sits in a loop — the idle loop).
If a signal is sent to a sleeping process, it has to be woken up before it will return to user space and thus process the pending signal. Here we have the difference between the two main types of sleep:
TASK_IN...
Catch-22 prevents streamed TCP WCF service securable by WIF; ruining my Christmas, mental health
... initial web service, or as a SOAP header and use a custom behaviour to validate it. You cannot use WS-Security to do this. Frankly, this is not just a WCF issue - I cannot see how it could practically work for any other stacks.
Solving the MTOM Problem
This is just for an example how I solved my ...
How do I print the elements of a C++ vector in GDB?
...alling above, this works well with Eclipse C++ debugger GUI (and any other IDE using GDB, as I think).
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Prompt for user input in PowerShell
...tring input from a user.
$name = Read-Host 'What is your username?'
To hide passwords you can use:
$pass = Read-Host 'What is your password?' -AsSecureString
To convert the password to plain text:
[Runtime.InteropServices.Marshal]::PtrToStringAuto(
[Runtime.InteropServices.Marshal]::Secur...