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How to efficiently compare two unordered lists (not sets) in Python?
... objects are not unhashable per se. You just have to implements a sensible __hash__, but that might be impossible for collections.
– Jochen Ritzel
Oct 19 '11 at 22:23
...
Get the latest record from mongodb collection
...answered Feb 2 '14 at 21:28
dark_rubydark_ruby
6,00644 gold badges2626 silver badges5050 bronze badges
...
Delete files older than 10 days using shell script in Unix [duplicate]
...
find is the common tool for this kind of task :
find ./my_dir -mtime +10 -type f -delete
EXPLANATIONS
./my_dir your directory (replace with your own)
-mtime +10 older than 10 days
-type f only files
-delete no surprise. Remove it to test your find filter before executing the wh...
How to add an extra column to a NumPy array
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np.r_[ ... ] and np.c_[ ... ]
are useful alternatives to vstack and hstack,
with square brackets [] instead of round ().
A couple of examples:
: import numpy as np
: N = 3
: A = np.eye(N)
: np.c_[ A, np.ones(N) ] #...
Transposing a NumPy array
...range(10) then a is array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9]) as produced by a.__repr__(). This is a 1-dimensional (i.e. a.ndim --> 1) vector as indicated by the square brackets []. The array( ... ) is not seen when you do either print(a) or a.__str__().
– dtlussier
...
How to check if one DateTime is greater than the other in C#
...s all my unit tests:
public DateTime Start
{
get { return _start; }
set
{
if (_end.Equals(DateTime.MinValue))
{
_start = value;
}
else if (value.Date < _end.Date)
{
_start ...
How to fix “ImportError: No module named …” error in Python?
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@Editor: __init__.py only indicates that the directory should be treated as a package, when its parent is either in sys.path or is itself a package.
– Ignacio Vazquez-Abrams
Jan 4 '14 at 23:15
...
Node.js get file extension
...inted out, and not write your own. More info: nodejs.org/api/path.html#path_path_extname_p
– xentek
Feb 23 '14 at 6:20
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Mock vs MagicMock
...orld'
...
hello world
>>> MagicMock()[1]
<MagicMock name='mock.__getitem__()' id='4385349968'>
You can "see" the methods added to MagicMock as those methods are invoked for the first time:
>>> magic1 = MagicMock()
>>> dir(magic1)
['assert_any_call', 'assert_called...
How to check if a variable is a dictionary in Python?
...t, defaultdict, or Counter from the collections module:
if isinstance(any_object, dict):
But there are even more flexible options.
Supporting abstractions:
from collections.abc import Mapping
if isinstance(any_object, Mapping):
This allows the user of your code to use their own custom implem...