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Finding what methods a Python object has
...t an AttributeError, you can use this instead:
getattr( is intolerant of pandas style python3.6 abstract virtual sub-classes. This code does the same as above and ignores exceptions.
import pandas as pd
df = pd.DataFrame([[10, 20, 30], [100, 200, 300]],
columns=['foo', 'bar',...
Where to define custom error types in Ruby and/or Rails?
...ou define exceptions in this way:
gem_dir/lib/gem_name/exceptions.rb
and defined as:
module GemName
class AuthenticationError < StandardError; end
class InvalidUsername < AuthenticationError; end
end
an example of this would be something like this in httparty
For Ruby on Rails
...
Webfonts or Locally loaded fonts?
...le's offering. It will actually load the smallest format your browser can handle. WOFF offers small file sizes, and your browser supports it, so it's the one you see. WOFF is also fairly widely supported. However, in Opera for example, you'll probably get the TrueType version of the font.
The file ...
What is the difference between And and AndAlso in VB.NET?
In VB.NET, what is the difference between And and AndAlso ? Which should I use?
11 Answers
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What is the difference between LINQ ToDictionary and ToLookup
What is the difference between LINQ ToDictionary and ToLookup? They seem to do the same thing.
2 Answers
...
How to clear basic authentication details in chrome
...th. I now want to remove the basic authentication details from the browser and try a different login.
20 Answers
...
Difference between “on-heap” and “off-heap”
Ehcache talks about on-heap and off-heap memory. What is the difference? What JVM args are used to configure them?
6 Answ...
Is inline assembly language slower than native C++ code?
I tried to compare the performance of inline assembly language and C++ code, so I wrote a function that add two arrays of size 2000 for 100000 times. Here's the code:
...
Spring @Transactional - isolation, propagation
...nce characteristics in a multi-threaded application. I think if you understand the dirty reads concept you will be able to select a good option.
Example of when a dirty read can occur:
thread 1 thread 2
| |
write(x) |
| |
| read(x)
...
How to change ViewPager's page?
I'm using ViewPager in my app and define it in the main Activity. Inside onCreate method I load some number of pages from SharedPreferences and then pass it to PagerAdapter:
...