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What's the canonical way to check for type in Python?
...e way you want to use them. So if your function is looking for a writable file object, don't check that it's a subclass of file, just try to use its .write() method!
Of course, sometimes these nice abstractions break down and isinstance(obj, cls) is what you need. But use sparingly.
...
Python Process Pool non-daemonic?
...t allowed to have children
The root cause is that importing this file from different modules causes this file to be reevalutated each time,
thus ProcessPool() gets reexecuted inside that child thread, thus causing the daemonic processes bug
"""
def __init__(self):
...
Git reset --hard and push to remote repository
...ull
# remove what you don't like anymore
rm -rf src
# restore from the tar file
tar xvfz /tmp/current.tgz
# commit everything back to git
git commit -a
# now you can properly push
git push
This way the state of affairs in the src is kept in a tar file and git is forced to accept this state without...
How to check if running in Cygwin, Mac or Linux?
...s
[1] uname - wikipedia
[2] shell script syntax error: unexpected end of file
[3] Detect the OS from a Bash script
[4] BASH Programming Introduction HOW-TO
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Why does Popen.communicate() return b'hi\n' instead of 'hi'?
...t;> print(b'\xff'.decode('ascii'))
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
UnicodeDecodeError: 'ascii' codec can't decode byte 0xff in position 0…
The newline is part of what echo hi has output. echo's job is to output the parameters you pass it, ...
How do I remove a project configuration in Visual Studio 2008?
...ct, then the configuration is still there. If you look inside the .vcxproj files, then the configuration is still there. I use Visual Studio 2013 (Professional and Ultimate)
– Matthias
Oct 11 '14 at 18:00
...
What is the difference between user variables and system variables?
... are shared for all users, but user variables are only for your account/profile.
If you deleted the system ones by accident, bring up the Registry Editor, then go to HKLM\ControlSet002\Control\Session Manager\Environment (assuming your current control set is not ControlSet002). Then find the Path v...
How to add global ASP.Net Web Api Filters?
...w MyMvcFilter());
//stuff after
}
}
or in the global.asax.cs file by way of GlobalFilters.Filters collection for those without WebActivator:
GlobalFilters.Filters.Add(new MyMvcFilter());
It's worth noting that in both cases you do not need to inherit from the appropriate FilterAttri...
How can I open Windows Explorer to a certain directory from within a WPF app?
...directory goes here>")
Or if you'd like a method to run programs/open files and/or folders:
private void StartProcess(string path)
{
ProcessStartInfo StartInformation = new ProcessStartInfo();
StartInformation.FileName = path;
Process process = Process.Start(StartInformation);
...
What is the best way to detect a mobile device?
...
For me small is beautiful so I'm using this technique:
In CSS file:
/* Smartphones ----------- */
@media only screen and (max-width: 760px) {
#some-element { display: none; }
}
In jQuery/JavaScript file:
$( document ).ready(function() {
var is_mobile = false;
if( ...