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When to use the brace-enclosed initializer?
... Curly braces have the disadvantage that I can call the list constructor by mistake. Round brackets don't. Isn't that a reason to use the round brackets by default?
– helami
Apr 2 '12 at 13:36
...
Why does Environment.Exit() not terminate the program any more?
... the odd-duck out. It implements the Visual Styles theming API and is used by this test program. I can't be sure, but my money is on that one as the source of the problem. The copy in C:\WINDOWS\system32 has version number 6.2.9200.16660, created on August 14th, 2013 on my machine.
Case closed.
...
How do I remove version tracking from a project cloned from git?
...tadata (such as .gitignore and .gitkeep), you can delete only the tracking by running rm -rf .git.
Windows
Using the command prompt
The rmdir or rd command will not delete/remove any hidden files or folders within the directory you specify, so you should use the del command to be sure that all ...
Get exception description and stack trace which caused an exception, all as a string
...>\n']
>>> value_
ZeroDivisionError('integer division or modulo by zero',)
>>> type_
<type 'exceptions.ZeroDivisionError'>
>>>
>>> 5 / 0
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ZeroDivisionError: integer divisio...
Writing a list to a file with Python
...rements?
If you are just trying to serialize a list to disk for later use by the same python app, you should be pickleing the list.
import pickle
with open('outfile', 'wb') as fp:
pickle.dump(itemlist, fp)
To read it back:
with open ('outfile', 'rb') as fp:
itemlist = pickle.load(fp)
...
How to group dataframe rows into list in pandas groupby?
...
You can do this using groupby to group on the column of interest and then apply list to every group:
In [1]: df = pd.DataFrame( {'a':['A','A','B','B','B','C'], 'b':[1,2,5,5,4,6]})
df
Out[1]:
a b
0 A 1
1 A 2
2 B 5
3 B 5
4 B 4
5 ...
difference and when to use getApplication(), getApplicationContext(), getBaseContext() and someClass
...
The answer by Waqas is very clear and complete, however I'd like to further clarify the difference between using this vs. getBaseContext(), or getApplication() vs. getApplicationContext(). Both Activity and Application extend not Conte...
Biggest differences of Thrift vs Protocol Buffers?
...
Another important difference are the languages supported by default.
Protocol Buffers: Java, Android Java, C++, Python, Ruby, C#, Go, Objective-C, Node.js
Thrift: Java, C++, Python, Ruby, C#, Go, Objective-C, JavaScript, Node.js, Erlang, PHP, Perl, Haskell, Smalltalk, OCaml, Delp...
What is the fastest way to check if a class has a function defined?
... better to ask forgiveness than permission. ;-)
hasattr is implemented by calling getattr and checking if it raises, which is not what I want.
Again, why is that? The following is quite Pythonic:
try:
invert_op = self.invert_op
except AttributeError:
pass
else:
...
How do I decode a base64 encoded string?
...
Simple:
byte[] data = Convert.FromBase64String(encodedString);
string decodedString = Encoding.UTF8.GetString(data);
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