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How do I replace whitespaces with underscore?
...
Replacing spaces is fine, but I might suggest going a little further to handle other URL-hostile characters like question marks, apostrophes, exclamation points, etc.
Also note that the general consensus among SEO experts is that dashes are preferred to underscores in URLs.
import re
def urli...
Where is a complete example of logging.config.dictConfig?
...: 1,
'disable_existing_loggers': True,
'formatters': {
'standard': {
'format': '%(asctime)s [%(levelname)s] %(name)s: %(message)s'
},
},
'handlers': {
'default': {
'level': 'INFO',
'formatter': 'standard',
'c...
How can I hash a password in Java?
... good algorithm to use for password hashing.
byte[] salt = new byte[16];
random.nextBytes(salt);
KeySpec spec = new PBEKeySpec("password".toCharArray(), salt, 65536, 128);
SecretKeyFactory f = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
byte[] hash = f.generateSecret(spec).getEncoded();
Bas...
How to correctly use the extern keyword in C
...keyword, the function / variable is assumed to be available somewhere else and the resolving is deferred to the linker.
There's a difference between "extern" on functions and on variables: on variables it doesn't instantiate the variable itself, i.e. doesn't allocate any memory. This needs to be do...
How does _gaq.push(['_trackPageLoadTime']) work?
...of November 16th 2011, the _trackPageLoadTime function has been deprecated and its functionality has been set as a default setting. (Functionally speaking, it has gone from being an opt-in feature to being an opt-out feature.)
_setSiteSpeedSampleRate is the new function for setting the sample rate ...
SQL Server - Create a copy of a database table and place it in the same database?
...is will create a new table ABC_1 that has the same column structure as ABC and contains the same data. Constraints (e.g. keys, default values), however, are -not- copied.
You can run this query multiple times with a different table name each time.
If you don't need to copy the data, only to cre...
mongo group query how to keep fields
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@Juliomac, I believe if your desired output is $max/$min and keeping fields that are not in the $group _id, you can $sort before with the desired field then group and use $first or $last operators on any field. When accumulating, the idea to include other fields (which are accumula...
Why doesn't print work in a lambda?
...thon 2.x, print is a statement. However, in Python 3, print is a function (and a function application is an expression, so it will work in a lambda). You can (and should, for forward compatibility :) use the back-ported print function if you are using the latest Python 2.x:
In [1324]: from __future...
Is cout synchronized/thread-safe?
...ate locking. However, do things like cout get special treatment in the standard library?
4 Answers
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AttributeError: 'module' object has no attribute 'tests'
I'm running this command:
11 Answers
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