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How do I run Redis on Windows?
...
Download Microsoft's port from their GitHub repository.
This release includes the redis-server.exe application that runs a Redis instance as a service on your windows machine, as well as redis-cli.exe which you can use to interact with any Redis insta...
svn : how to create a branch from certain revision of trunk
The following action will only create a branch from the head revision of the trunk. How do I create a branch from a specific revision? Thanks.
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Django: ImproperlyConfigured: The SECRET_KEY setting must not be empty
... the same problem after restructuring the settings as per the instructions from Daniel Greenfield's book Two scoops of Django.
I resolved the issue by setting
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "project_name.settings.local")
in manage.py and wsgi.py.
Update:
In the above solution...
Applying .gitignore to committed files
...es that I now want to ignore. How can I tell git to now ignore these files from future commits?
6 Answers
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How do I convert a numpy array to (and display) an image?
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You could use PIL to create (and display) an image:
from PIL import Image
import numpy as np
w, h = 512, 512
data = np.zeros((h, w, 3), dtype=np.uint8)
data[0:256, 0:256] = [255, 0, 0] # red patch in upper left
img = Image.fromarray(data, 'RGB')
img.save('my.png')
img.show()
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What is the difference between memmove and memcpy?
...ake the same assumptions.
For example, memcpy might always copy addresses from low to high. If the destination overlaps after the source, this means some addresses will be overwritten before copied. memmove would detect this and copy in the other direction - from high to low - in this case. However...
What is time_t ultimately a typedef to?
...brary defined for storing
system time values. Such values are
returned from the standard time()
library function. This type is a
typedef defined in the standard
header. ISO C defines
time_t as an arithmetic type, but does
not specify any particular type,
range, resolution, or encodi...
Difference in Months between two dates in JavaScript
... lot of interpretation. :-)
You can get the year, month, and day of month from a JavaScript date object. Depending on what information you're looking for, you can use those to figure out how many months are between two points in time.
For instance, off-the-cuff:
function monthDiff(d1, d2) {
v...
Error-Handling in Swift-Language
...ay decided to propagate the error, if your are calling a throwing function from a function that is itself marked with throws keyword:
func fulfill(quest: Quest) throws {
let dragon = try summonDefaultDragon()
quest.ride(dragon)
}
Alternatively, you can call throwing function using try?:
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Catching an exception while using a Python 'with' statement
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from __future__ import with_statement
try:
with open( "a.txt" ) as f :
print f.readlines()
except EnvironmentError: # parent of IOError, OSError *and* WindowsError where available
print 'oops'
If you want d...