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Forced naming of parameters in Python
...ition to other good answers for Python 2, please consider the following:
__named_only_start = object()
def info(param1,param2,param3,_p=__named_only_start,spacing=10,collapse=1):
if _p is not __named_only_start:
raise TypeError("info() takes at most 3 positional arguments")
return...
Git: How to remove file from historical commit?
...refs.
The filter-branch approach is considerably more powerful than the rebase approach, since it
allows you to work on all branches/refs at once,
renames any tags on the fly
operates cleanly even if there have been several merge commits since the addition of the file
operates cleanly even if t...
How do I get the path of the Python script I am running in? [duplicate]
...
os.path.realpath(__file__) will give you the path of the current file, resolving any symlinks in the path. This works fine on my mac.
share
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Finding out whether a string is numeric or not
...igits" in a NSString. + I think that it's much faster than any other robot-based ways ( although we're probably not looking much at performance here ).
– nembleton
Jul 31 '12 at 10:49
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How can I force division to be floating point? Division keeps rounding down to 0?
...hon 3, it produces a float. We can get the new behaviour by importing from __future__.
>>> from __future__ import division
>>> a = 4
>>> b = 6
>>> c = a / b
>>> c
0.66666666666666663
...
Scala how can I count the number of occurrences in a list
...", "banana", "apple", "oranges", "oranges")
s.groupBy(identity).mapValues(_.size)
giving a Map with a count for each item in the original sequence:
Map(banana -> 1, oranges -> 3, apple -> 3)
The question asks how to find the count of a specific item. With this approach, the solution w...
PHP passing $_GET in linux command prompt
...ipt.php -f=world
$opts = getopt('f:');
echo $opts['f']; // prints world
$_GET refers to the HTTP GET method parameters, which are unavailable in command line, since they require a web server to populate.
If you really want to populate $_GET anyway, you can do this:
// bash command:
// export Q...
What does `m_` variable prefix mean?
I often see m_ prefix used for variables ( m_World , m_Sprites ,...) in tutorials, examples and other code mainly related to game development.
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How can I get all the request headers in Django?
...m HTTP headers.
From the documentation:
With the exception of CONTENT_LENGTH and CONTENT_TYPE, as given above, any HTTP headers in the request are converted to META keys by converting all characters to uppercase, replacing any hyphens with underscores and adding an HTTP_ prefix to the name.
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C++ Redefinition Header Files (winsock2.h)
...list that <windows.h> is included after <winsock2.h> or define _WINSOCKAPI_ first:
#define _WINSOCKAPI_ // stops windows.h including winsock.h
#include <windows.h>
// ...
#include "MyClass.h" // Which includes <winsock2.h>
See also this.
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