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UnicodeDecodeError: 'ascii' codec can't decode byte 0xd1 in position 2: ordinal not in range(128)
...
Just add this lines to your codes :
import sys
reload(sys)
sys.setdefaultencoding('utf-8')
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Extract traceback info from an exception object
...Python 2 solution is much uglier: you are provided with an ad-hoc function,sys.exc_info(), which only works inside the except clause. It returns a tuple containing the exception, the exception type, and the traceback for whatever exception is currently being handled.
So if you are inside the excep...
Is it possible to specify your own distance function using scikit-learn K-Means Clustering?
... -- local mod cdist for 0 < p < 1 too
verbose: 0 silent, 2 prints running distances
out:
centres, k x dim
Xtocentre: each X -> its nearest centre, ints N -> k
distances, N
see also: kmeanssample below, class Kmeans below.
"""
if not isspars...
How to import a Python class that is in a directory above?
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up1 = os.path.abspath('..') sys.path.insert(0, up1)
– rp.
May 15 '16 at 17:18
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Flattening a shallow list in Python [duplicate]
...ls
>>> chain = itertools.chain(*list_of_menuitems)
>>> print(list(chain))
['image00', 'image01', 'image10']
It will work on anything that's iterable, which should include Django's iterable QuerySets, which it appears that you're using in the question.
Edit: This is probably as g...
How much faster is Redis than mongoDB?
....time()
test(data)
elapsed = time.time() - start
print "Completed %s: %d ops in %.2f seconds : %.1f ops/sec" % (test.__name__, num, elapsed, num / elapsed)
if __name__ == '__main__':
num = 1000 if len(sys.argv) == 1 else int(sys.argv[1])
tests = [mongo_set, mongo_get...
How do I drop a function if it already exists?
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IF EXISTS (
SELECT * FROM sysobjects WHERE id = object_id(N'function_name')
AND xtype IN (N'FN', N'IF', N'TF')
)
DROP FUNCTION function_name
GO
If you want to avoid the sys* tables, you could instead do (from here in example A):
IF object_...
Execution of Python code with -m option or not
...new module object is created to hold the global namespace and is stored in sys.modules['__main__']. This is what the __name__ variable refers to, it is a key in that structure.
For packages, you can create a __main__.py module inside and have that run when running python -m package_name; in fact tha...
Is it possible for a unit test to assert that a method calls sys.exit()
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Yes. sys.exit raises SystemExit, so you can check it with assertRaises:
with self.assertRaises(SystemExit):
your_method()
Instances of SystemExit have an attribute code which is set to the proposed exit status, and the cont...
What's the main difference between int.Parse() and Convert.ToInt32
...ne-grained control over the situation when the user enters invalid input.
Convert.ToInt32() takes an object as its argument. (See Chris S's answer for how it works)
Convert.ToInt32() also does not throw ArgumentNullException when its argument is null the way Int32.Parse() does. That also means tha...