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RuntimeWarning: invalid value encountered in divide
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I think your code is trying to "divide by zero" or "divide by NaN". If you are aware of that and don't want it to bother you, then you can try:
import numpy as np
np.seterr(divide='ignore', invalid='ignore')
For more details see:
http://docs.scipy.org/doc/numpy/reference/generated/numpy....
What is the difference between a WCF Service Application and a WCF Service Library?
...e library is a library of services that a host can reference and startup.
If you start with a service library (recommended) you can then choose any host you wish (a windows service, IIS/ASP.NET, or even a console application) and you'd just reference your library from your new host. Choosing a Ser...
SQL Server 2008: how do I grant privileges to a username?
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If you want to give your user all read permissions, you could use:
EXEC sp_addrolemember N'db_datareader', N'your-user-name'
That adds the default db_datareader role (read permission on all tables) to that user.
There's a...
Export Postgresql table data using pgAdmin
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@Pixel Elephant: If performance matters, you should use COPY. It's much faster.
– Frank Heikens
Nov 14 '12 at 7:01
22
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Convert base-2 binary number string to int
...n='11111111')
>>> b.uint
255
Note that the unsigned integer is different from the signed integer:
>>> b.int
-1
The bitstring module isn't a requirement, but it has lots of performant methods for turning input into and from bits into other forms, as well as manipulating them.
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Should I use AppDomain.CurrentDomain.BaseDirectory or System.Environment.CurrentDirectory?
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If you want to find files in the same directory as your application, AppDomain.CurrentDomain.BaseDirectory is the correct choice.
Environment.CurrentDirectory is a value that can and will change throught the course of runn...
mvn clean install vs. deploy vs. release
...and we have recently needed to go more and more. I would like to know the difference between
2 Answers
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Android icon vs logo
The <application> tag for the Android Manifest contains a logo attribute which I have never seen before. What is the difference between your application's icon and its logo? Is it used purely for market?
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Comments in .gitignore?
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Don't know if it was true when this was answered, but the linked book section indicates that in addition to starting a line, comments can also be appended to a line in the .gitignore file.
– Stuart R. Jefferys
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How do you create nested dict in Python?
...split(',')
# check to make sure this key should be mapped.
if cols[0] not in keys:
continue
# add key to dict
d[cols[0]] = dict(
# inner keys are the header names, values are columns
(headers[idx], v) for idx, v in enumerate(cols[1:...