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Python argparse mutual exclusive group
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106
add_mutually_exclusive_group doesn't make an entire group mutually exclusive. It makes options ...
How do I make and use a Queue in Objective-C?
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10 Answers
10
Active
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Numpy `logical_or` for more than two arguments
...ith a scalar instead of an array. So:
>>> np.any((x, y, z), axis=0)
array([ True, True, True, False], dtype=bool)
As you might expect, logical_and is similar—you can chain it, np.reduce it, functools.reduce it, or substitute all with an explicit axis.
What about other operations,...
Matching a space in regex
...s is (note the space inside the regex):
$newtag = preg_replace ("/[^a-zA-Z0-9 ]/", "", $tag);
# ^ space here
If you also want trickery to ensure there's only one space between each word and none at the start or end, that's a little more complicated (and probably...
In Vim, how do I apply a macro to a set of lines?
...ple/all lines:
Execute the macro stored in register a on lines 5 through 10.
:5,10norm! @a
Execute the macro stored in register a on lines 5 through the end of the file.
:5,$norm! @a
Execute the macro stored in register a on all lines.
:%norm! @a
Execute the macro store in register a on al...
Will ConfigurationManager.AppSettings[“blah”] throw an exception if “blah” doesn't exist?
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answered Jul 6 '10 at 14:46
Tim RobinsonTim Robinson
48.9k99 gold badges112112 silver badges126126 bronze badges
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Set cellpadding and cellspacing in CSS?
..."cellpadding" in CSS, you can simply use padding on table cells. E.g. for 10px of "cellpadding":
td {
padding: 10px;
}
For "cellspacing", you can apply the border-spacing CSS property to your table. E.g. for 10px of "cellspacing":
table {
border-spacing: 10px;
border-collapse: separat...
`new function()` with lower case “f” in JavaScript
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edited Jun 20 '12 at 8:58
Quamis
9,8711212 gold badges4545 silver badges6262 bronze badges
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How big is too big for a PostgreSQL table?
...'t be an issue on it's own.
So roughly speaking 1 million rows a day for 90 days is 90 million rows. I see no reason Postgres can't deal with that, without knowing all the details of what you are doing.
Depending on your data distribution you can use a mixture of indexes, filtered indexes, and tab...
Check if a class has a member function of a given signature
...gt; static int Test(...);
static const bool Has = sizeof(Test<T>(0)) == sizeof(char);
};
template<typename TMap>
void ReportMemUsage(const TMap& m, std::true_type)
{
// We may call used_memory() on m here.
}
template<typename TMap>
void ReportMemUsage(const TMap&am...