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How Pony (ORM) does its tricks?
... nested loops.
Currently Pony ORM covers the whole generator instructions set except two things:
Inline if expressions: a if b else c
Compound comparisons: a < b < c
If Pony encounters such expression it raises the NotImplementedError exception. But even in
this case you can make it work...
Aren't Python strings immutable? Then why does a + “ ” + b work?
...hat a points to, which can't be changed, and add " " to my current working set.
memory:
working_set = "Dog "
a = "Dog"
b = "eats"
c = "treats"
+ b says give me what b points to, which can't be changed, and add it to current working set.
memory:
working_set = "Dog eats"
a = "Dog"
b = "eats"
c...
Sharing a result queue among several processes
... editor after snippets, if snippets enabled
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Group a list of objects by an attribute : Java
...ent>());
}
groupedStudents.get(key).add(student);
}
//print
Set<String> groupedStudentsKeySet = groupedCustomer.keySet();
for (String location: groupedStudentsKeySet) {
List<Student> stdnts = groupedStudents.get(location);
for (Student student : stdnts) {
Sys...
How do I use Notepad++ (or other) with msysgit?
...t doesn't need anymore a shell wrapper script.
As I explain in "How can I set up an editor to work with Git on Windows?", I prefer a wrapper, as it is easier to try and switch editors, or change the path of one editor, without having to register said change with a git config again.
But that is just...
Replacing some characters in a string with another character
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What are Runtime.getRuntime().totalMemory() and freeMemory()?
I've been wondering what the exact meaning of Runtime.getRuntime().totalMemory() , Runtime.getRuntime().freeMemory() , and Runtime.getRuntime().maxMemory() is.
...
Create an index on a huge MySQL production table without table locking
...1 | grep real;
(time mysql -uroot -e 'update website_development.users set bio="" where id = 41225\G'>/dev/null) 2>&1 | grep real;
done
) | cat -n &
PID=$!
sleep 0.05
echo "Index Update - START"
mysql -uroot website_development -e 'alter table users add index ddopsonfu (last_name...
How to add title to subplots in Matplotlib?
...
ax.title.set_text('My Plot Title') seems to work too.
fig = plt.figure()
ax1 = fig.add_subplot(221)
ax2 = fig.add_subplot(222)
ax3 = fig.add_subplot(223)
ax4 = fig.add_subplot(224)
ax1.title.set_text('First Plot')
ax2.title.set_text(...
What's the difference between Unicode and UTF-8? [duplicate]
...o this group, you should
read this ultra short introduction to character sets and encodings.
Actually, comparing UTF-8 and Unicode is like comparing apples and
oranges:
UTF-8 is an encoding - Unicode is a character
set
A character set is a list of characters with unique numbers ...