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How to check whether a file is empty or not?
...method, which has the attribute st_size(file size in bytes):
>>> from pathlib import Path
>>> mypath = Path("path/to/my/file")
>>> mypath.stat().st_size == 0 # True if empty
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What's up with Java's “%n” in printf?
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From a quick google:
There is also one specifier that doesn't correspond to an argument. It is "%n" which outputs a line break. A "\n" can also be used in some cases, but since "%n" always outputs the correct platform-spe...
How to do a logical OR operation in shell scripting
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From Bash Reference Manual → 3.4.2 Special Parameters
#
($#) Expands to the number of positional parameters in decimal.
Therefore, $# will always be either 0 or a bigger integer.
So if you want to do something when...
Get the key corresponding to the minimum value within a dictionary
...lists, ex: d={"a":[10, None], "b":[20, None]}, where the min is calculated from d[key][0] ?
– TrakJohnson
Dec 31 '16 at 17:36
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Change color of UISwitch in “off” state
...ffTint
}
}
}
set class in Identity inspector
change color from Attributes inspector
Output
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NPM clean modules
...m cache directory.
The source can then be copied in.
Using ideas gleaned from https://groups.google.com/forum/?fromgroups=#!topic/npm-/mwLuZZkHkfU I came up with the following node script. No warranties, YMMV, etcetera.
var fs = require('fs'),
path = require('path'),
exec = require('child_process...
restrict edittext to single line
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android:singleLine is now deprecated. From the documentation:
This constant was deprecated in API level 3.
This attribute is deprecated. Use maxLines instead to change the layout of a static text, and use the textMultiLine flag in the inputType attribute instead...
How to sort a list of strings numerically?
...ay and found a module called [natsort][1], which solves your problem. Use:
from natsort import natsorted # pip install natsort
# Example list of strings
a = ['1', '10', '2', '3', '11']
[In] sorted(a)
[Out] ['1', '10', '11', '2', '3']
[In] natsorted(a)
[Out] ['1', '2', '3', '10', '11']
# Your a...
Parse query string into an array
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This is one-liner for parsing query from current URL into array:
parse_str($_SERVER['QUERY_STRING'], $query);
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Linux delete file with size 0 [duplicate]
... not Mac OS), you can omit it in this case:
find -type f -empty -delete
From GNU find documentation:
If no files to search are specified, the current directory (.) is used.
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