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Showing the stack trace from a running Python application
... a process will be running for a long time but gets stuck sometimes for unknown and irreproducible reasons. Its a bit hacky, and only works on unix (requires signals):
import code, traceback, signal
def debug(sig, frame):
"""Interrupt running process, and provide a python prompt for
inter...
Why does C++ not allow inherited friendship?
...g along the lines of virtual friend class Foo; puzzles me. Does anyone know the historical background behind this decision? Was friendship really just a limited hack that has since found its way into a few obscure respectable uses?
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Focusable EditText inside ListView
...because the ListView was then blocking focus to all children.
What I have now:
<ListView
android:id="@android:id/list"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:descendantFocusability="beforeDescendants"
/>
I use beforeDescendant...
How to check if a variable exists in a FreeMarker template?
...me is null, the result if null would be:
Hi , How are you?
if_exists is now deprecated and has been replaced with the default operator ! as in
Hi ${userName!}, How are you?
the default operator also supports a default value, such as:
Hi ${userName!"John Doe"}, How are you?
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The $.param( ) inverse function in JavaScript / jQuery
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I know this is an old thread, but maybe there is still some relevance in it?
Inspired by Jacky Li's good solution I tried a slight variation of my own with the objective to also be able to take care of arbitrary combinations of...
How do I escape the wildcard/asterisk character in bash?
...
Great answer! Now I don't feel I asked such a dumb question. :-)
– andyuk
Sep 19 '08 at 18:12
1
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How to use MDC with thread pools?
... consistently;
Avoids tacit bugs where the MDC is incorrect but you don't know it; and
Minimizes changes to how you use thread pools (e.g. subclassing Callable with MyCallable everywhere, or similar ugliness).
Here's a solution that I use that meets these three needs. Code should be self-explanato...
How to handle button clicks using the XML onClick within Fragments
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That's what I'm doing now essentially but it is a lot messier when you have multiple fragments that each need to receive click events. I'm just aggravated with fragments in general because paradigms have dissolved around them.
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lock(new object()) — Cargo cult or some crazy “language special case”?
...impossible, as the code concerned was written before I joined the company. Now that there are changes to make, maybe I can convince Management to let me fix the code. Otherwise I will not take responsibility for any instabilities (the last one to touch anything is the one to blame)...
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Check if a value is within a range of numbers
...ow good it answers the question. That's because I generally assume people know what they are asking for. The checkmark shows me this wasn't the case with this questioner.
– Leif
Jun 23 '11 at 13:16
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