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How do I detect the Python version at runtime? [duplicate]
...
Sure, take a look at sys.version and sys.version_info.
For example, to check that you are running Python 3.x, use
import sys
if sys.version_info[0] < 3:
raise Exception("Must be using Python 3")
Here, sys.version_info[0] is the major version number. sys.version_i...
Difference between Rebuild and Clean + Build in Visual Studio
...ww.cs.tufts.edu/r/graphics/resources/vs_getting_started/vs_getting_started.htm, (just googled it):
Build means compile and link only the source files that have changed since the last build, while Rebuild means compile and link all source files regardless of whether they changed or not. Build is the...
What are the implications of using “!important” in CSS? [duplicate]
...r anything else, including author !important rules: w3.org/TR/CSS2/cascade.html#cascading-order
– ANeves thinks SE is evil
Oct 25 '11 at 9:45
1
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How get integer value from a enum in Rails?
... the integer values for an enum from the class the enum is on:
Model.sale_infos # Pluralized version of the enum attribute name
That returns a hash like:
{ "plan_1" => 1, "plan_2" => 2 ... }
You can then use the sale_info value from an instance of the Model class to access the integer va...
Does pandas iterrows have performance issues?
...h():
ret = []
grouped = table2.groupby('letter', sort=False)
t2info = table2.to_records()
for index, letter, n1 in table1.to_records():
t2 = t2info[grouped.groups[letter].values]
# np.multiply is in general faster than "x * y"
maxrow = np.multiply(t2.number2, ...
Too many 'if' statements?
...s everything into 1 long integer and turn it into a formula
public int fightMath(int one,int two)
{
return (int)(0xF9F66090L >> (2*(one*4 + two)))%4;
}
More bitwise variant:
This makes use of the fact everything is a multiple of 2
public int fightMath(int one,int two)
{
return (0xF9...
ios app maximum memory budget
...s always here
}
- (float)__getMemoryUsedPer1
{
struct mach_task_basic_info info;
mach_msg_type_number_t size = sizeof(info);
kern_return_t kerr = task_info(mach_task_self(), MACH_TASK_BASIC_INFO, (task_info_t)&info, &size);
if (kerr == KERN_SUCCESS)
{
float used_...
How does password salt help against a rainbow table attack?
...celent article with sample code:
http://crackstation.net/hashing-security.htm
The author recomends using random salts per user, so that gaining access to a salt won't render the entire list of hashes as easy to crack.
To Store a Password:
Generate a long random salt using a CSPRNG.
...
Log.INFO vs. Log.DEBUG [closed]
... a large commercial program and keep confusing myself between what kind of information i want to log with Log.INFO and Log.DEBUG. Are there any standards or rules of thumb on what each type of log message contains?
...
Table header to stay fixed at the top when user scrolls it out of view with jQuery
... than the column data values. Try changing that fiddle to have values like infoooooooo instead of info. I'm thinking some sort of hardcoded width that's set when cloning the table.
– whiterook6
Jun 24 '13 at 20:10
...