Why is heap slower than sort for K Closest Points to Origin?: https://stackoverflow.com/questions/56284121/why-is-heap-slower-than-sort-for-k-closest-points-to-origin
Stack Overflow
Why is heap slower than sort for K Closest Points to Origin?
The coding task is here
The heap solution:
import heapq
class Solution:
def kClosest(self, points: List[List[int]], K: int) -> List[List[int]]:
return heapq.nsmallest(K, points, ke...
The heap solution:
import heapq
class Solution:
def kClosest(self, points: List[List[int]], K: int) -> List[List[int]]:
return heapq.nsmallest(K, points, ke...
How to visualize mean edit distance in Tensorboard using Keras callback?: https://stackoverflow.com/questions/56264958/how-to-visualize-mean-edit-distance-in-tensorboard-using-keras-callback
Stack Overflow
How to visualize mean edit distance in Tensorboard using Keras callback?
So far, I have been experimenting with Tensorflow and Keras. I took a code from image_ocr.py which allowed me to train printed text ocr. I want to see the training progress as it goes and have
In Keras, how to get 3D input and 3D output for LSTM layers: https://stackoverflow.com/questions/56255643/in-keras-how-to-get-3d-input-and-3d-output-for-lstm-layers
Stack Overflow
In Keras, how to get 3D input and 3D output for LSTM layers
In my original setting, I got
X1 = (1200,40,1)
y1 = (1200,10)
Then, I work perfectly with my codes:
model = Sequential()
model.add(LSTM(12, input_shape=(40, 1), return_sequences=True))
model.add...
X1 = (1200,40,1)
y1 = (1200,10)
Then, I work perfectly with my codes:
model = Sequential()
model.add(LSTM(12, input_shape=(40, 1), return_sequences=True))
model.add...
Finding minimal jump zero crossings in numpy: https://stackoverflow.com/questions/56270327/finding-minimal-jump-zero-crossings-in-numpy
Stack Overflow
Finding minimal jump zero crossings in numpy
For a data analysis task, I want to find zero crossings in a numpy array, coming from a convolution with first a sobel-like kernel, and then a mexican hat kernel. Zero crossings allow me to detect ...
Extract upwards pointing lane lines: https://stackoverflow.com/questions/56291414/extract-upwards-pointing-lane-lines
Stack Overflow
Extract upwards pointing lane lines
We try to detect lane lines on a running track (and with this information the upcoming direction).
We currently use the following (simplified) steps:
Binary: transform the input with a binary thr...
We currently use the following (simplified) steps:
Binary: transform the input with a binary thr...
Postgres closes connection during query after a few hundred seconds when using Psycopg2: https://stackoverflow.com/questions/56289874/postgres-closes-connection-during-query-after-a-few-hundred-seconds-when-using-p
Stack Overflow
Postgres closes connection during query after a few hundred seconds when using Psycopg2
I'm running PostgreSQL 9.6 (in Docker, using the postgres:9.6.13 image) and psycopg2 2.8.2.
My PostgreSQL server (local) hosts two databases. My goal is to create materialized views in one of the
My PostgreSQL server (local) hosts two databases. My goal is to create materialized views in one of the
How do I perform a case-insensitive search for files of a given suffix in Python?: https://stackoverflow.com/questions/46067185/how-do-i-perform-a-case-insensitive-search-for-files-of-a-given-suffix-in-python
Stack Overflow
How do I perform a case-insensitive search for files of a given suffix in Python?
I'm looking for the equivalent of find $DIR -iname '*.mp3', and I don't want to do the kooky ['mp3', 'Mp3', MP3', etc] thing. But I can't figure out how to combine the re*.IGNORECASE stuff with the
How to resolve HTTP 404.2 when running a CGI Python mapping on IIS 10.0.14393: https://stackoverflow.com/questions/56293428/how-to-resolve-http-404-2-when-running-a-cgi-python-mapping-on-iis-10-0-14393
Stack Overflow
How to resolve HTTP 404.2 when running a CGI Python mapping on IIS 10.0.14393
I've setup a Windows Server2016 virtual machine, and installed IIS with CGI, ISAPI, .Net, etc... My only ambition for this server is to run python scripts the old CGI way: python file requested, ex...
How ensure QWebEngineView is fully rendered before taking screenshot?: https://stackoverflow.com/questions/56260319/how-ensure-qwebengineview-is-fully-rendered-before-taking-screenshot
Stack Overflow
How ensure QWebEngineView is fully rendered before taking screenshot?
I want to take a screenshot of QWebEngineView for a page with a large image. When running code below red background is rendered correctly but the image is not.
How can I ensure the page is fully
How can I ensure the page is fully
Keras fit_generator() - How does batch for time series work?: https://stackoverflow.com/questions/56229630/keras-fit-generator-how-does-batch-for-time-series-work
Stack Overflow
Keras fit_generator() - How does batch for time series work?
Context:
I am currently working on time series prediction using Keras with Tensorflow backend and, therefore, studied the tutorial provided here.
Following this tutorial, I came to the point wher...
I am currently working on time series prediction using Keras with Tensorflow backend and, therefore, studied the tutorial provided here.
Following this tutorial, I came to the point wher...
Python difference between mutating and re-assigning a list ( _list = and _list[:] = ): https://stackoverflow.com/questions/56308475/python-difference-between-mutating-and-re-assigning-a-list-list-and-list
Stack Overflow
Python difference between mutating and re-assigning a list ( _list = and _list[:] = )
So I frequently write code following a pattern like this:
_list = list(range(10)) # Or whatever
_list = [some_function(x) for x in _list]
_list = [some_other_function(x) for x in _list]
etc
I sa...
_list = list(range(10)) # Or whatever
_list = [some_function(x) for x in _list]
_list = [some_other_function(x) for x in _list]
etc
I sa...
Problem returning interpolated z-value from contour: https://stackoverflow.com/questions/56207789/problem-returning-interpolated-z-value-from-contour
Stack Overflow
Problem returning interpolated z-value from contour
I am trying to return the z-value of a contour. The specific point I want to use to return the z-value is called from ['C1_X'],['C1_Y'] in the df. The code works when these coordinates do not change.
Ring: The advanced cache interface for Python: https://ring-cache.readthedocs.io/
asyncio: running task only if all other tasks are awaiting: https://stackoverflow.com/questions/56309760/asyncio-running-task-only-if-all-other-tasks-are-awaiting
Stack Overflow
asyncio: running task only if all other tasks are awaiting
I am currently running some endless tasks using asyncio.wait
I need a special function to run when all the others are on await
import asyncio
async def special_function():
while True:
...
I need a special function to run when all the others are on await
import asyncio
async def special_function():
while True:
...
HTML posted form data gets written as jibberish into MySQL database: https://stackoverflow.com/questions/56117288/html-posted-form-data-gets-written-as-jibberish-into-mysql-database
Stack Overflow
HTML posted form data gets written as jibberish into MySQL database
When i try to enter data in a text field in Greek letters my wsgi script saves that data as jibberish in the MySQL database and i dont know why.
Here is the relative code when the data is about to be
Here is the relative code when the data is about to be
Why does splatting create a tuple on the rhs but a list on the lhs?: https://stackoverflow.com/questions/56237733/why-does-splatting-create-a-tuple-on-the-rhs-but-a-list-on-the-lhs
Stack Overflow
Why does splatting create a tuple on the rhs but a list on the lhs?
Consider, for example,
squares = *map((2).__rpow__, range(5)),
squares
# (0, 1, 4, 9, 16)
*squares, = map((2).__rpow__, range(5))
squares
# [0, 1, 4, 9, 16]
So, all else being equal we get a lis...
squares = *map((2).__rpow__, range(5)),
squares
# (0, 1, 4, 9, 16)
*squares, = map((2).__rpow__, range(5))
squares
# [0, 1, 4, 9, 16]
So, all else being equal we get a lis...
Which is the most beautiful function you've written in Python?: https://www.reddit.com/r/Python/comments/brb9j5/which_is_the_most_beautiful_function_youve/
reddit
r/Python - Which is the most beautiful function you've written in Python?
1 vote and 7 comments so far on Reddit
Translating Math into Code with Examples in Java, Racket, Haskell and Python: https://matt.might.net/articles/discrete-math-and-code/
Pandas resample and interpolate an irregular time series using a list of other irregular times: https://stackoverflow.com/questions/56285924/pandas-resample-and-interpolate-an-irregular-time-series-using-a-list-of-other-i
Stack Overflow
Pandas resample and interpolate an irregular time series using a list of other irregular times
I have data collected from 2 different sensors which operate asynchronously at non-uniform intervals. I want to get data from sensor 1 interpolated to the timestamps from sensor 2.
I have found a ...
I have found a ...