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StringIO in Python3
I am using Python 3.2.1 and I can't import the StringIO module. I use
io.StringIO and it works, but I can't use it with numpy 's genfromtxt like this:
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What is setup.py?
Can anyone please explain what setup.py is and how it can be configured or used?
10 Answers
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Show which git tag you are on?
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Edit: Jakub Narębski has more git-fu. The following much simpler command works perfectly:
git describe --tags
(Or without the --tags if you have checked out an annotated tag. My tag is lightweight, so I need the --tags.)
original answer follows:
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Advantages of using display:inline-block vs float:left in CSS
Normally, when we want to have multiple DIVs in a row we would use float: left , but now I discovered the trick of display:inline-block
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Twitter Bootstrap - how to center elements horizontally or vertically
is there any way to center html elements vertically or horizontally inside the main parents?
12 Answers
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Can I use a :before or :after pseudo-element on an input field?
... use the :after CSS pseudo-element on an input field, but it does not work. If I use it with a span , it works OK.
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Styling multi-line conditions in 'if' statements? [closed]
... cond3 == 'val3' and cond4 == 'val4'):
do_something
Also, don't forget the whitespace is more flexible than you might think:
if (
cond1 == 'val1' and cond2 == 'val2' and
cond3 == 'val3' and cond4 == 'val4'
):
do_something
if (cond1 == 'val1' and cond2 == 'val2'...
Difference between volatile and synchronized in Java
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It's important to understand that there are two aspects to thread safety.
execution control, and
memory visibility
The first has to do with controlling when code executes (including the order in which instructions are executed)...
Big-O summary for Java Collections Framework implementations? [closed]
...O notation, it is probably not safe to assume that they will know what the order of the various operations on various collection implementations is.
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Regex to match only letters
...es one letter from A–Z in lowercase and uppercase. [a-zA-Z]+ matches one or more letters and ^[a-zA-Z]+$ matches only strings that consist of one or more letters only (^ and $ mark the begin and end of a string respectively).
If you want to match other letters than A–Z, you can either add them ...