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Use different Python version with virtualenv
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How to get Erlang's release version number from a shell?
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answered Mar 5 '12 at 3:46
Odobenus RosmarusOdobenus Rosmarus
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When are you supposed to use escape instead of encodeURI / encodeURIComponent?
...uxxxx is used. This is not allowed within a query string (as defined in RFC3986):
query = *( pchar / "/" / "?" )
pchar = unreserved / pct-encoded / sub-delims / ":" / "@"
unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~"
pct-encoded = "%" HEXDIG HEXDIG
sub-delims = "!" / "$" ...
Objective-C formatting string for boolean?
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173
One way to do it is to convert to strings (since there are only two possibilities, it isn't hard...
Converting JSON String to Dictionary Not List
... to calculate the mean:
sum(p[0] for p in datapoints[0:5])/5. # Result is 35.8
If you're willing to install NumPy, then it's even easier:
import numpy
json1_file = open('json1')
json1_str = json1_file.read()
json1_data = json.loads(json1_str)[0]
datapoints = numpy.array(json1_data['datapoints'])...
Why do I get a segmentation fault when writing to a “char *s” initialized with a string literal, but
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See the C FAQ, Question 1.32
Q: What is the difference between these initializations?
char a[] = "string literal";
char *p = "string literal";
My program crashes if I try to assign a new value to p[i].
A: A string literal (the formal t...
Changing one character in a string
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scvalexscvalex
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Get first day of week in SQL Server
...uilt in to round up or down:
SELECT DATEDIFF(YEAR, '2010-01-01', '2011-12-31');
SELECT DATEDIFF(YEAR, '2010-12-31', '2011-01-01');
To answer how to get a Sunday:
If you want a Sunday, then pick a base date that's not a Monday but rather a Sunday. For example:
DECLARE @dt DATE = '1905-01-01';
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NumPy array initialization (fill with identical values)
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325
NumPy 1.8 introduced np.full(), which is a more direct method than empty() followed by fill()...
Free XML Formatting tool [closed]
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349
I believe that Notepad++ has this feature.
Edit (for newer versions)
Install the "XML Tools" ...