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What is the 'dynamic' type in C# 4.0 used for?
...variable's type can change. The variable in question is of type "dynamic" (from the perspective of the C# language; from the CLR's perspective the variable is of type object). The type of a variable never changes. The runtime type of the value of a variable can be any type compatible with the type o...
How do I upgrade my ruby 1.9.2-p0 to the latest patch level using rvm?
...ng gemsets:
$ rvm upgrade 1.9.2-p0 1.9.2
Are you sure you wish to upgrade from ruby-1.9.2-p0 to ruby-1.9.2-p136? (Y/n): Y
To replace with the latest stable release of 1.9.2. This avoids clutter.
Some additional helpful tips, thanks to comments (@Mauro, @James, @ACB)
$ rvm list known
# NOTE: yo...
Building a minimal plugin architecture in Python
... a well-known entry point possibly with module-level config params, and go from there. I use file-monitoring stuff for a certain amount of dynamism in which plugins are active, but that's a nice-to-have.
Of course, any requirement that comes along saying "I don't need [big, complicated thing] X; I ...
JPA OneToMany not deleting child
...All works well, only that child records are not deleted when I remove them from the collection.
8 Answers
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How Does Modulus Divison Work
... You left out very important steps that explain where that remainder comes from. Marcin M.'s answer below explained the process better. Please consider being more detailed in future answers for those of us that may not have a grasp on a concept at all. Thank you for being a contributing member to...
Are lists thread-safe?
...ons.deque is what's behind Queue.Queue objects. If you're accessing things from two threads, you really should use Queue.Queue objects. Really.
– Thomas Wouters
Jun 12 '11 at 0:09
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List directory tree structure in python?
...nswers above, but for python3, arguably readable and arguably extensible:
from pathlib import Path
class DisplayablePath(object):
display_filename_prefix_middle = '├──'
display_filename_prefix_last = '└──'
display_parent_prefix_middle = ' '
display_parent_prefix_last...
How to convert numbers between hexadecimal and decimal
...
To convert from decimal to hex do...
string hexValue = decValue.ToString("X");
To convert from hex to decimal do either...
int decValue = int.Parse(hexValue, System.Globalization.NumberStyles.HexNumber);
or
int decValue = Conve...
I can't install python-ldap
...
You don't have to compile from source on Windows. Just use one of the installers from pypi.python.org/pypi/python-ldap.
– Semmel
Sep 19 '13 at 2:14
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What is a daemon thread in Java?
...
A daemon thread is a thread that does not prevent the JVM from exiting when the program finishes but the thread is still running. An example for a daemon thread is the garbage collection.
You can use the setDaemon(boolean) method to change the Thread daemon properties before the th...