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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...
“Inner exception” (with traceback) in Python?
...2
It's simple; pass the traceback as the third argument to raise.
import sys
class MyException(Exception): pass
try:
raise TypeError("test")
except TypeError, e:
raise MyException(), None, sys.exc_info()[2]
Always do this when catching one exception and re-raising another.
...
TypeError: 'NoneType' object is not iterable in Python
...'str' and 'NoneType' objects
What's going on here?
Python's interpreter converted your code to pyc bytecode. The Python virtual machine processed the bytecode, it encountered a looping construct which said iterate over a variable containing None. The operation was performed by invoking the __it...
Run function from the command line
...
In that case you can send sys.argv to the method. Or access it from the hello method
– Wolph
Feb 10 '18 at 8:48
3
...
Manually raising (throwing) an exception in Python
...but if you insist.
You can preserve the stacktrace (and error value) with sys.exc_info(), but this is way more error prone and has compatibility problems between Python 2 and 3, prefer to use a bare raise to re-raise.
To explain - the sys.exc_info() returns the type, value, and traceback.
type,...
Any way to properly pretty-print ordered dictionaries?
...order, so this probably applies to a small percentage of uses. Regardless, converting the OD it to a dict should avoid the issue of everything being placed on one line.
– martineau
Nov 29 '10 at 9:07
...
How to get the python.exe location programmatically? [duplicate]
...
This works in Linux & Windows:
Python 3.x
>>> import sys
>>> print(sys.executable)
C:\path\to\python.exe
Python 2.x
>>> import sys
>>> print sys.executable
/usr/bin/python
s...
IndentationError: unindent does not match any outer indentation level
...t Sublime Text to use tabs for indentation:
View --> Indentation --> Convert Indentation to Tabs
Uncheck the Indent Using Spaces option as well in the same sub-menu above.
This will immediately resolve this issue.
sha...
How to disable python warnings
..."ignore")
Ex:
>>> import warnings
>>> def f():
... print('before')
... warnings.warn('you are warned!')
... print('after')
>>> f()
before
__main__:3: UserWarning: you are warned!
after
>>> warnings.filterwarnings("ignore")
>>> f()
before
after
...
Drop all the tables, stored procedures, triggers, constraints and all the dependencies in one sql st
...ipt cleans all views, SPS, functions PKs, FKs and tables.
/* Drop all non-system stored procs */
DECLARE @name VARCHAR(128)
DECLARE @SQL VARCHAR(254)
SELECT @name = (SELECT TOP 1 [name] FROM sysobjects WHERE [type] = 'P' AND category = 0 ORDER BY [name])
WHILE @name is not null
BEGIN
SELECT @...