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Turn a string into a valid filename?
I have a string that I want to use as a filename, so I want to remove all characters that wouldn't be allowed in filenames, using Python.
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SSH to Vagrant box in Windows?
...nect to my Vagrant boxes on Windows7.
Make sure you
convert the %USERPROFILE%\.vagrant.d\insecure_private_key to .ppk using PuTTYGen
use the .ppk key in your PuTTY session - configured in Connection > SSH > Auth > Private key file
use host 127.0.0.1
use port 2222 instead of 22
you can se...
Plurality in user messages
...rmation has to be determined per language, so any systems based on message files has to deal with varying amounts of plurality in a set of messages. Ouch! Setting up the translations would be tricky too - different numbers of messages are needed for different languages.
– Jon...
Count immediate child div elements using jQuery
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$("#foo > div").length
Direct children of the element with the id 'foo' which are divs. Then retrieving the size of the wrapped set produced.
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Fragments within Fragments
I'm wondering if this is actually a bug in the Android API:
6 Answers
6
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How to drop rows of Pandas DataFrame whose value in a certain column is NaN
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This question is already resolved, but...
...also consider the solution suggested by Wouter in his original comment. The ability to handle missing data, including dropna(), is built into pandas explicitly. Aside from potentially improved performance over doing it manually, these...
How do I clone a Django model instance object and save it to the database?
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I had to set both obj.pk and obj.id to make this work in Django 1.4
– Petr Peller
Jan 10 '14 at 18:00
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Match two strings in one line with grep
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You can use
grep 'string1' filename | grep 'string2'
Or
grep 'string1.*string2\|string2.*string1' filename
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What do single quotes do in C++ when used on multiple characters?
...y in the Core Audio API enum's for example, in the CoreAudioTypes.h header file,
enum
{
kAudioFormatLinearPCM = 'lpcm',
kAudioFormatAC3 = 'ac-3',
kAudioFormat60958AC3 = 'cac3',
kAudioFormatAppleIMA4 = 'ima4',
kAudioF...
How to store custom objects in NSUserDefaults
...g calls to encodeObject with something relevant to your own object):
- (void)encodeWithCoder:(NSCoder *)encoder {
//Encode properties, other class variables, etc
[encoder encodeObject:self.question forKey:@"question"];
[encoder encodeObject:self.categoryName forKey:@"category"];
[en...