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What is the difference between an expression and a statement in Python?
...lue", which can be any Python object. Examples:
3 + 5
map(lambda x: x*x, range(10))
[a.x for a in some_iterable]
yield 7
Statements (see 1, 2), on the other hand, are everything that can make up a line (or several lines) of Python code. Note that expressions are statements as well. Examples:
...
Is there a difference between “==” and “is”?
...s out the reference implementation of Python caches integer objects in the range -5..256 as singleton instances for performance reasons. Here's an example demonstrating this:
>>> for i in range(250, 260): a = i; print "%i: %s" % (i, a is int(str(i)));
...
250: True
251: True
252: True
253...
How do I pass command line arguments to a Node.js program?
... madness, just lack of information. If you want something lighter, use the raw JS, Meow or Minimist.
– dthree
Oct 13 '16 at 21:58
1
...
iReport not starting using JRE 8
...classpath
cd blah/blah/iReport-5.1.0
wget http://hg.netbeans.org/jet-main/raw-file/3238e03c676f/openide.util/src/org/openide/util/WeakListenerImpl.java
javac -d . -cp platform9/lib/org-openide-util.jar WeakListenerImpl.java
zip -r platform9/lib/org-openide-util.jar org
I am avoiding running eclip...
MySQL Data - Best way to implement paging?
...ge of large OFFSETs. They avoid using OFFSET with a variety of techniques, ranging from id range selections in the WHERE clause, to some kind of caching or pre-computing pages.
There are suggested solutions at Use the INDEX, Luke:
"Paging Through Results".
"Pagination done the right way".
...
Distributed sequence number generation?
...scale manner. You could look into things like network broadcasts, windowed ranges for each worker, and distributed hash tables for unique worker IDs, but it's a lot of work.
Unique IDs are another matter, there are several good ways of generating unique IDs in a decentralized manner:
a) You could ...
How can I capture the result of var_dump to a string?
...turns a parsable string—essentially PHP code—while var_dump provides a raw dump of the data. So, for example, if you call var_dump on an integer with the value of 1, it would print int(1) while var_export just prints out 1.
– inxilpro
Jun 21 '13 at 21:56
...
What type of hash does WordPress use?
...sented in different ways, for example as a hex string, a Base64 string, or raw data in a file. You commonly see MD5 values represented in hex, however WordPress uses Base64 instead. Your hex value would be sZRqySSS0jR8YjW00mERhA== in Base64, which uses 25% less characters than hex to represent the s...
How to read/process command line arguments?
... parser.add_argument(
'integers', metavar='int', type=int, choices=range(10),
nargs='+', help='an integer in the range 0..9')
parser.add_argument(
'--sum', dest='accumulate', action='store_const', const=sum,
default=max, help='sum the integers (default: find the ...
Create MSI or setup project with Visual Studio 2012
...santhoshkumar, After completing installation of window form MSI setup, my raw files(Design and coding) are also showing at installation location. I've developed this application using visual studio 2010. Setup created successfully, but after installation that MSI this problem is happening. Please h...