大约有 3,516 项符合查询结果（耗时：0.0183秒） [XML]
Learning Python from Ruby; Differences and Similarities
...
s = 'string-with-palindromes-like-abbalabba'
l = len(s)
[s[x:y] for x in range(l) for y in range(x,l+1) if p(s[x:y])]
share
|
improve this answer
|
follow
...
Convert Datetime column from UTC to local time in select statement
...n March
@FSN datetime -- First Sunday in November
-- get DST Range
set @SSM = datename(year,@UTC) + '0314'
set @SSM = dateadd(hour,2,dateadd(day,datepart(dw,@SSM)*-1+1,@SSM))
set @FSN = datename(year,@UTC) + '1107'
set @FSN = dateadd(second,-1,dateadd(hour,2,dateadd(da...
Creating range in JavaScript - strange syntax
I've run into the following code in the es-discuss mailing list:
4 Answers
4
...
Keyboard Interrupts with python's multiprocessing Pool
...ify a timeout. To do that, replace
results = pool.map(slowly_square, range(40))
with
results = pool.map_async(slowly_square, range(40)).get(9999999)
or similar.
share
|
improve this a...
How to split/partition a dataset into training and test datasets for, e.g., cross validation?
...
from sklearn.model_selection import train_test_split
data, labels = np.arange(10).reshape((5, 2)), range(5)
data_train, data_test, labels_train, labels_test = train_test_split(data, labels, test_size=0.20, random_state=42)
This way you can keep in sync the labels for the data you're trying to ...
How does this print “hello world”?
...
Interesting!
Standard ASCII characters which are visible are in range of 32 to 127.
That's why you see 32, and 95 (127 - 32) there.
In fact each character is mapped to 5 bits here, (you can find what is 5 bit combination for each character), and then all bits are concatenated to form a ...
Python: Append item to list N times
...you may wish to modify later (like sub-lists, or dicts):
l = [{} for x in range(100)]
(The reason why the first method is only a good idea for constant values, like ints or strings, is because only a shallow copy is does when using the <list>*<number> syntax, and thus if you did somet...
Get lengths of a list in a jinja2 template
...
Alex' comment looks good but I was still confused with using range.
The following worked for me while working on a for condition using length within range.
{% for i in range(0,(nums['list_users_response']['list_users_result']['users'])| length) %}
<li> {{ nums['list_users_res...
Generate a heatmap in MatPlotLib using a scatter data set
... yv = data_coord2view_coord(ys, reso, extent[2], extent[3])
for x in range(reso):
for y in range(reso):
xp = (xv - x)
yp = (yv - y)
d = np.sqrt(xp**2 + yp**2)
im[y][x] = 1 / np.sum(d[np.argpartition(d.ravel(), n_neighbours)[:n_neighbour...
UnicodeEncodeError: 'latin-1' codec can't encode character
...oding that is based on ISO-8859-1 but which puts extra characters into the range 0x80-0x9F. Code page 1252 is often confused with ISO-8859-1, and it's an annoying but now-standard web browser behaviour that if you serve your pages as ISO-8859-1, the browser will treat them as cp1252 instead. However...