QuestionId int64 74.8M 79.8M | UserId int64 56 29.4M | QuestionTitle stringlengths 15 150 | QuestionBody stringlengths 40 40.3k | Tags stringlengths 8 101 | CreationDate stringdate 2022-12-10 09:42:47 2025-11-01 19:08:18 | AnswerCount int64 0 44 | UserExpertiseLevel int64 301 888k | UserDisplayName stringlengths 3 30 ⌀ |
|---|---|---|---|---|---|---|---|---|
76,111,464 | 1,942,868 | Celery and Redis, Cannot connect to redis://redis:6379/0 | <p>I am installing celery according to this <code>[article][1]</code>.</p>
<pre><code> pip install "celery[redis]"
</code></pre>
<p>Then made tasks.py</p>
<pre><code>from celery import Celery
app = Celery('tasks', broker='redis://redis:6379/0')
app.conf.result_backend = 'redis://localhost:6379/0'
@app.task
... | <python><redis><celery> | 2023-04-26 13:39:37 | 1 | 12,599 | whitebear |
76,111,121 | 9,690,041 | When is xarrays `xr.apply_ufunc(...dask='parallelized')` fast? | <p>I open data from the ERA5 Google Cloud Zarr archive. I do some refactoring (change time resolution, select Northern Hemisphere only, etc.), where the operations are applied on dask data.</p>
<p>This is how the xarray DataArray looks like:</p>
<p><a href="https://i.sstatic.net/SaJn3.png" rel="nofollow noreferrer"><im... | <python><numpy><dask><python-xarray><large-data> | 2023-04-26 13:07:33 | 1 | 335 | jspaeth |
76,110,977 | 716,237 | Long-running jupyter notebook can't connect. Don't want to lose all my work | <p>I've had a jupyter notebook running for a week training a ML model. Usually I can tap the dropdown "Reconnect" when I need to check in on it. Now jupyter just started giving an error saying it can't connect. I don't want to restart it and lose all my progress, then likely have the same thing happen again!<... | <python><amazon-web-services><machine-learning><jupyter-notebook> | 2023-04-26 12:52:53 | 1 | 6,891 | Tyler |
76,110,964 | 3,521,180 | how to write a update method to update each cell of a table | <p><a href="https://i.sstatic.net/GG7Hy.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/GG7Hy.png" alt="enter image description here" /></a>I have scratched every single hair on my head, but able to come to any conclusion about writing an "UPDATE" query for a given scenario.
I have a request bo... | <python><sql><python-3.x><flask> | 2023-04-26 12:51:36 | 0 | 1,150 | user3521180 |
76,110,928 | 7,559,397 | Import could not be resolved, the module is user built, but the code runs | <p>I have a directory and the structure of two files is below</p>
<pre><code>python/solver-tic-tac-toe.py
python/players.py
</code></pre>
<p>I have this for my import statement in <code>solver-tic-tac-toe.py</code></p>
<pre><code>import players
</code></pre>
<p>But I get from VSCode</p>
<pre><code>Import "players&... | <python><visual-studio-code><python-import> | 2023-04-26 12:47:52 | 1 | 1,335 | Jinzu |
76,110,842 | 801,618 | How am I misunderstanding Django's get_or_create function? | <p>We have a Django project that has a bunch of experiments, and each experiment can have zero or more text tags. The tags are stored in a table, and there is a many-to-many relationship between experiments and tags:</p>
<pre class="lang-python prettyprint-override"><code>class Tag(models.Model):
text = models.Text... | <python><django> | 2023-04-26 12:39:16 | 1 | 436 | MerseyViking |
76,110,833 | 2,825,570 | Python Selenium - How to select a tab in a page | <p>The following image is the code of tabs present in a web page:
<a href="https://i.sstatic.net/M54VH.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/M54VH.png" alt="enter image description here" /></a>
The tab names are <code>Overview</code>, <code>Information</code>, and <code>Audit</code> (Kindly ref... | <javascript><python><html><jquery><selenium-webdriver> | 2023-04-26 12:38:37 | 1 | 8,621 | Jeril |
76,110,677 | 10,721,627 | How to get the operating system information from python docker container? | <p>Docker images can inherit from other images. Therefore, using the official Python docker image allows running Python applications and tools.</p>
<pre><code>docker run --rm -it python bash
</code></pre>
<p>After creating and running an interactive container from the <a href="https://hub.docker.com/_/python" rel="nofo... | <python><docker><dockerfile> | 2023-04-26 12:23:04 | 1 | 2,482 | Péter Szilvási |
76,110,402 | 1,900,520 | How to do ewm_mean in rust polars? | <p>In python we can do:</p>
<pre><code>df.with_columns([
pl.col("myCol").ewm_mean(50)
])
</code></pre>
<p>But how do we do the same in rust? The following doesn't work:</p>
<pre><code>df.with_columns([
col("myCol").ewm_mean(50)
])
</code></pre>
<p>It fails with <code>No method named ewm_mean... | <python><rust><python-polars><rust-polars> | 2023-04-26 11:51:25 | 1 | 8,089 | Corvus |
76,110,394 | 20,646,427 | A lot of similar queries bcs of for loop Django | <p>I have for loop in my <code>get_queryset</code> function and i'm parsing info from request into my django template but for some reason bcs i try to filter by GUID i got 21 similiar sql queries</p>
<p>I was trying to get CleanSections before my for loop but that didnt help</p>
<p>Any tips how can i solve that?</p>
<p... | <python><sql><django> | 2023-04-26 11:50:09 | 1 | 524 | Zesshi |
76,110,329 | 2,838,281 | Iterating over LLM models does not work in LangChain | <p>I am trying to instantiate LangChain LLM models and then iterate over them to see what they respond for same prompts.</p>
<pre><code>from langchain.llms import OpenAI, HuggingFaceHub
from langchain import PromptTemplate
from langchain import LLMChain
import pandas as pd
bool_score = False
total_score = 0
count = 0
... | <python><openai-api><huggingface><langchain> | 2023-04-26 11:43:51 | 2 | 505 | Yogesh Haribhau Kulkarni |
76,110,282 | 9,681,081 | SQLAlchemy: get Index object for a given column with index=True | <p>How can I get an SQLAlchemy <code>Index</code> object corresponding to a column that has <code>index=True</code>?</p>
<p>For example, in the code below, I'd like to have the <code>Index</code> associated to <code>MyTable.name</code>.</p>
<pre class="lang-py prettyprint-override"><code>from sqlalchemy.orm import Decl... | <python><indexing><sqlalchemy> | 2023-04-26 11:39:33 | 1 | 2,273 | Roméo Després |
76,110,267 | 11,837,399 | Firestore warning on filtering with positional arguments. How to use 'filter' kwarg in Firestore queries? | <p>Firestore started showing</p>
<pre><code>UserWarning: Detected filter using positional arguments. Prefer using the 'filter' keyword argument instead.
</code></pre>
<p>when using <code>query.where(field_path, op_string, value)</code> while it's the the method from the official docs <a href="https://cloud.google.com/f... | <python><google-cloud-firestore> | 2023-04-26 11:37:49 | 5 | 795 | syldman |
76,110,009 | 3,596,355 | __getitem__ only gets called if __iter__ is defined | <p>I am subclassing a dict and would love some help understanding the behavior below (please)
[Python version: 3.11.3]:</p>
<pre><code>class Xdict(dict):
def __init__(self, d):
super().__init__(d)
self._x = {k: f"x{v}" for k, v in d.items()}
def __getitem__(self, key):
print(&... | <python><dictionary><subclass> | 2023-04-26 11:05:51 | 1 | 319 | pauleohare |
76,109,951 | 10,323,453 | Panda create csv with dictionary column | <p>I am try to create csv file with dictionary column but when I read it, that column is string not dictionary data type.</p>
<pre><code>splittrain.to_csv("SQuAD_tain.csv",index=False)
</code></pre>
<p>splittrain is DataFrame. answers column have a dictionary data. when check type by using <code>type(splittra... | <python><pandas><csv><dictionary> | 2023-04-26 10:59:39 | 1 | 395 | Ind |
76,109,899 | 2,281,274 | Tracing (step-by-step) some other function call in pdb | <p>I'm in the middle of tracing in PDB, at some line. I want to call other function (<code>foo</code>) to see result. I can do it by just typing <code>foo()</code>.</p>
<p>But I want to 'step' into <code>foo</code>. How can I do it?</p>
<p>(To clarify, current line does not contain <code>foo</code> calls).</p>
| <python><pdb> | 2023-04-26 10:52:08 | 1 | 8,055 | George Shuklin |
76,109,710 | 14,535,309 | Why adding index to django model slowed the exectuion time? | <p>I've added the index to my django model in order to make the queries on it a little bit faster but the execution time actually went up:</p>
<pre><code>from autoslug import AutoSlugField
from django.db import models
class City(models.Model):
name = models.CharField(max_lenght=30)
population = models.Integer... | <python><django><database><django-models><optimization> | 2023-04-26 10:25:54 | 1 | 2,202 | SLDem |
76,109,641 | 9,182,743 | Python: get data into dataframe by clicking on plot | <p>I have a dataframe with:</p>
<ul>
<li><strong>time</strong>: unix time with freq = 4Hz</li>
<li><strong>signal</strong>: a signal here simulated with n number of square waves (real signal more noisy/complex)</li>
<li><strong>derr_1</strong>: signal derivative used to better classify signal types.</li>
</ul>
<h1>Obje... | <python><pandas><numpy> | 2023-04-26 10:19:26 | 1 | 1,168 | Leo |
76,109,578 | 2,587,422 | Searching a large DataFrame with a MultiIndex slow | <p>I have a large Pandas DataFrame (~800M rows), which I have indexed on a <code>MultiIndex</code> with two indices, an int and a date. I want to retrieve a subset of the DataFrame's rows based on a list of ints (about 10k) that I have. The ints match the first index of the multi-index. The multi-index is unique.</p>
<... | <python><pandas><dataframe><multi-index> | 2023-04-26 10:12:26 | 2 | 315 | Luigi D. |
76,109,550 | 12,349,101 | Tkinter - Binding Keyboard keys to elements / items on Canvas | <p>I already know you can bind keys to widgets, or bind Mouse click to elements on a Canvas (eg: rectangle, line, etc), example for the latter:</p>
<pre class="lang-py prettyprint-override"><code>import tkinter as tk
class App:
def __init__(self, master):
self.master = master
self.canvas = tk.Canv... | <python><python-3.x><tkinter> | 2023-04-26 10:08:20 | 1 | 553 | secemp9 |
76,109,469 | 468,921 | python find the largest number in a glob of filenames | <p>in a glob of filenames, I need to find the largest number.</p>
<p><em>model_dir.glob('weights_epoch_*.tf.index')</em> returns a generator, but then what?</p>
<pre><code>/home/rac/amf9-horizon/weights_epoch_1.tf.index
/home/rac/amf9-horizon/weights_epoch_10.tf.index
/home/rac/amf9-horizon/weights_epoch_15.tf.index
/h... | <python><tensorflow><pathlib> | 2023-04-26 10:00:06 | 2 | 1,553 | Antti Rytsölä |
76,109,079 | 20,240,835 | snakemake threads wildcards not found | <p>I have a snakemake rule like:</p>
<pre><code>rule get_coverage:
input:
cram=lambda wildcards: expand(config['input']['cram'][wildcards.reference_genome], #access_id = access_id[wildcards.sample_name],
sample_name='{sample_name}'),
bai=lambda wildcards: e... | <python><bioinformatics><snakemake> | 2023-04-26 09:18:10 | 1 | 689 | zhang |
76,108,876 | 9,018,649 | Which packages are required to put in requirements.txt when publishing a python azure function by remote build? | <p>This explains that you dont need some azure packages:
<a href="https://learn.microsoft.com/en-us/azure/azure-functions/functions-reference-python?pivots=python-mode-configuration&tabs=asgi%2Capplication-level#azure-functions-python-worker-dependencies" rel="nofollow noreferrer">https://learn.microsoft.com/en-us/... | <python><azure><deployment><package><azure-functions> | 2023-04-26 08:50:53 | 1 | 411 | otk |
76,108,849 | 11,945,144 | How to recommend recurring action | <p>I have a dataset that contains the following columns: <code>id_customer</code> (customer identifier), <code>id_receiver</code> (identifier of the person who receives the money), <code>money</code> (money sent), and the <code>date</code> the money was sent.
I need to know which customers recurrently send money to the... | <python><dataframe><time-series><recommendation-engine><recurrent> | 2023-04-26 08:47:27 | 1 | 343 | Maite89 |
76,108,829 | 843,075 | os.getenv() returns None after setting environment variables | <p>I am following simple tutorial which requires setting up of environment variables. I have set a few in the following way:</p>
<pre><code>C:\Users\fsdam>set GITHUB_USERNAME=damaf
C:\Users\fsdam>set GITHUB_USERNAME
GITHUB_USERNAME=damaf
</code></pre>
<p>When I check this setting in Python, <code>None</code> is... | <python><windows><environment-variables> | 2023-04-26 08:45:05 | 1 | 304 | fdama |
76,108,710 | 8,849,755 | Python.h fails importing package | <p>I am using <code>Python.h</code> in C++ to run some Python code. Since I have no access to the <code>main</code> function, I am doing everything in my own function which gets called at some point. I am experiencing a weird failure when importing a package which unfortunately cannot reproduce in an external MWE. My c... | <python><c++> | 2023-04-26 08:31:04 | 0 | 3,245 | user171780 |
76,108,627 | 5,334,903 | Defining classes in ontology, instanciating individuals in namespace | <p>Using Owlready2, how to define classes attached to the ontology (on this base iri: <a href="http://example.com/ontology/item/1.1#" rel="nofollow noreferrer">http://example.com/ontology/item/1.1#</a>) and when an individual is created, it would be defined on other iri (like: <a href="http://example.com/profile/item/r... | <python><owl><ontology><owlready> | 2023-04-26 08:21:58 | 1 | 955 | Bloodbee |
76,108,471 | 15,560,990 | Can you pass Airflow templated variables with their actual type into Operators? | <p>I know that you can pass templated variables as string into operators, but I'd like to pass them around as their actual type.
For example, if I have (trivial function just to illustrate my point)</p>
<pre><code>def get_day(datetime_object):
return datetime_object.day
</code></pre>
<p>And a DAG with task</p>
<pre... | <python><airflow><jinja2> | 2023-04-26 08:04:57 | 2 | 460 | Dasph |
76,108,457 | 3,238,679 | Scatter plot toy examples to benchmark a correlation coefficient | <p>I am interested in benchmarking a coefficient and would like to see some toy examples. I came across <a href="https://en.wikipedia.org/wiki/Pearson_correlation_coefficient" rel="nofollow noreferrer">this</a> link which includes the following image. Would anyone happen to know of a Python toolkit or be able to provid... | <python><matplotlib><pearson-correlation> | 2023-04-26 08:02:46 | 1 | 1,041 | Thoth |
76,108,417 | 283,538 | python plotly to javascript plotly | <p>I would like to stay away from JavaScript and focus on analytics. Can I develop plotly graphs in Python (e.g. in Jupyter notebooks) and simply use the <a href="https://plotly.github.io/plotly.py-docs/generated/plotly.io.write_html.html" rel="nofollow noreferrer">write_html</a> function for developers to integrate in... | <javascript><python><plotly> | 2023-04-26 07:58:38 | 1 | 17,568 | cs0815 |
76,108,348 | 20,612,566 | Custom OrderingFilter Django REST + Vue | <p>I'm working on backend part of project (Django REST). I have a task - to do sorting for the front (Vue). The frontend sends a key for sorting and a parameter for sorting.</p>
<p>Example:</p>
<pre><code>GET /api/v1/stocks/?sort_key=FBS&sort_type=ascending
GET /api/v1/stocks/?sort_key=FBS&sort_type=descending
... | <python><django><django-rest-framework><django-filters> | 2023-04-26 07:50:27 | 2 | 391 | Iren E |
76,108,341 | 2,324,298 | Is it possible to get feature importance in CatBoost for a prediction | <p>I want to know the feature importance for a particular prediction made by the CatBoost model. I know we can get feature importance at the data set level but I want to see if we can do so at each prediction level.</p>
| <python><catboost> | 2023-04-26 07:49:17 | 1 | 8,005 | Clock Slave |
76,108,321 | 210,559 | Pyspark Aggregation of an array of structs | <p>I have the following schema in pyspark:</p>
<pre><code>root
|-- id: string (nullable = true)
|-- data: array (nullable = true)
| |-- element: struct (containsNull = true)
| | |-- id: string (nullable = true)
| | |-- name: string (nullable = true)
| | |-- seconds: decimal(38,18) (nullable =... | <python><apache-spark><pyspark><apache-spark-sql><aggregate-functions> | 2023-04-26 07:46:16 | 1 | 9,488 | Scott |
76,108,305 | 17,896,651 | TK to run django server on windows | <p>I have windows server running Django as a CMD process.</p>
<p>Some PC USERS mistakenly closing it.</p>
<p>I want to switch to TK running the Django server and put output on screen.</p>
<p>How safe is that ?</p>
<p>How do I close the django properly ?</p>
<pre><code>class TextRedirector(object):
def __init__(self... | <python><django><tkinter><tk-toolkit> | 2023-04-26 07:45:20 | 0 | 356 | Si si |
76,108,250 | 14,485,257 | How to only remove rows with NaN that are not at the beginning or end of the pandas Dataframe column? | <p>I have a pandas dataframe. It has a particular column which may or may not contain a continuous set of values as NaN's in its starting and ending. Also, it may or may not contain NaN's intermittently in between as well.</p>
<p>My objective is to eliminate only all those rows where NaN's may intermittently be present... | <python><pandas><dataframe><numpy><nan> | 2023-04-26 07:38:13 | 1 | 315 | EnigmAI |
76,108,240 | 10,829,044 | Pandas column replace multiple special characters and insert new characters | <p>I have a pandas dataframe like as below</p>
<pre><code>Country_list
{'INDIA': '98.31%', 'ASEAN': '1.69%'}
{'KOREA': '100.0%'}
{'INDIA': '95.00%', 'ASEAN': '2.50%','ANZ': '2.50%'}
{'INDIA': '95.00%', 'ASEAN': '2.50%','ANZ': '1.25%','KOREA': '1.25%'}
</code></pre>
<p>I would like to do the below</p>
<p>a) Replace al... | <python><pandas><dataframe><replace><series> | 2023-04-26 07:36:07 | 3 | 7,793 | The Great |
76,108,171 | 8,921,867 | Why does SQLAlchemy recommend using built-in `id` as column name? | <p>Using reserved keywords or built-in functions as variable/attribute names is commonly seen as <a href="https://stackoverflow.com/questions/77552/id-is-a-bad-variable-name-in-python">bad practice</a>.
However, the SQLALchemy <a href="https://docs.sqlalchemy.org/en/20/orm/quickstart.html" rel="noreferrer">tutorial</a>... | <python><sqlalchemy> | 2023-04-26 07:27:26 | 1 | 2,172 | emilaz |
76,108,133 | 8,996,032 | Python script to read csv-file from `inst` folder within custom R package | <p>I am building a R package that uses a Python script which in turn loads internal data. Both the py-script (<code>load_csv.py</code>) as well as the data (<code>data.csv</code>) are located in the <code>inst/</code> folder of the package directory.</p>
<pre><code>import pandas as pd
my_df = pd.read_csv("inst/dat... | <python><r><reticulate> | 2023-04-26 07:21:56 | 1 | 1,163 | Ben Nutzer |
76,107,909 | 5,338,465 | When should I use asyncio.create_task? | <p>I am using Python 3.10 and I am a bit confused about <code>asyncio.create_task</code>.</p>
<p>In the following example code, the functions are executed in coroutines whether or not I use <code>asyncio.create_task</code>. It seems that there is no difference.</p>
<p>How can I determine when to use <code>asyncio.creat... | <python><python-3.x><task><python-asyncio><coroutine> | 2023-04-26 06:51:40 | 1 | 1,050 | Vic |
76,107,844 | 10,753,968 | SqlAlchemy StaleDataError on simple update statement | <p>I'm trying to update a user in the database but keep running into a <code>StaleDataError</code>.</p>
<pre><code>user = session.query(User).get(1)
user.first_name # John
user.first_name = 'Sally'
session.commit()
# > sqlalchemy.orm.exc.StaleDataError: UPDATE statement on table 'user' expected to update 1 row(s);
... | <python><sqlalchemy><orm> | 2023-04-26 06:38:51 | 1 | 2,112 | half of a glazier |
76,107,800 | 5,501,591 | UnicodeDecodeError: while trying to print dictionary | <p>I get a UnicodeDecodeError trying to execute the below code in python 3.6.12</p>
<pre><code>import csv
fh = open('./testLog.log', 'r')
d = csv.DictReader(fh, delimiter=" ")
for row in d:
print(row)
fh.close()
</code></pre>
<blockquote>
<p>File "/opt/rh/rh-python36/root/usr/lib64/python3.6/encodi... | <python> | 2023-04-26 06:31:34 | 1 | 303 | Ahtesham Akhtar |
76,107,677 | 676,192 | Combine two images with a mask in python/cv2 | <p>I have three images:</p>
<p>warp.png</p>
<p><a href="https://i.sstatic.net/BnSWJ.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/BnSWJ.png" alt="enter image description here" /></a></p>
<p>weft.png</p>
<p><a href="https://i.sstatic.net/cibb7.png" rel="nofollow noreferrer"><img src="https://i.sstatic.n... | <python><opencv><image-processing> | 2023-04-26 06:11:23 | 2 | 5,252 | simone |
76,107,595 | 4,451,521 | title and labels in seaborn are on the border | <p>I am doing a simple displot with seaborn</p>
<p>However when I do</p>
<pre><code>ax2=sns.displot(outlist)
ax2.set(xlabel='Rate(Hz)', title='Distribution of publication rates')
</code></pre>
<p>I got</p>
<p><a href="https://i.sstatic.net/8tdMO.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/8tdMO.png" ... | <python><seaborn> | 2023-04-26 05:57:27 | 1 | 10,576 | KansaiRobot |
76,107,579 | 1,999,585 | How do I correctly use the lower and upper bound in a linear programming problem, in Python? | <p>I have the following Python code:</p>
<pre><code>from scipy.optimize import linprog
f = [612.03, 619, 617.13, 923]
A = [[-94, -96, -94.3, -118.6],
[-83.7, -83, -87.6, -89.7],
[1.02, 0.51, 0, 0],
[203.9, 214.5, 27.88, 78.2],
[53.6, 70.7, 71.5, 5.95],
[14.9, 0, 0, 0],
[35.1, 73.7, 0, 0],... | <python><scipy><linear-programming><scipy-optimize> | 2023-04-26 05:54:42 | 1 | 2,424 | Bogdan Doicin |
76,107,570 | 122,536 | pyautogui sometimes doesn't switch windows in the following code | <p>I'm using this function to switch windows, to simulate Alt + Tab:</p>
<pre><code>import time
import pyautogui
def switch_windows():
pyautogui.keyDown('alt')
pyautogui.press('tab')
pyautogui.keyUp('alt')
</code></pre>
<p>It works most of the time. But sometimes I get stuck in the terminal and a <code>^[<... | <python><pyautogui> | 2023-04-26 05:53:49 | 1 | 55,665 | wyc |
76,107,515 | 1,595,350 | How to get Blocks and Child Blocks for a Page in Notion? | <p>I have a page <code>https://www.notion.so/Wiki-Page-For-a-Business-Case-8ec70cd1894711a862acc61a47fdb74d</code>.</p>
<p>I would like to access this page through Python an extract its blocks. I have added successfully the Connection, received the API Key but i cannot access a site by its url or anything else through ... | <python><notion-api><notion> | 2023-04-26 05:44:33 | 1 | 4,326 | STORM |
76,107,458 | 2,802,576 | Pandas Convert a complex datastructure to Dataframe | <p>I am querying an API and got the response like below</p>
<pre><code> {
"data": {
"items": [
{
"outername": "OuterNameValue1",
"value": {
"columns": [
{
"innername": "innernameval... | <python><pandas><dataframe> | 2023-04-26 05:30:03 | 2 | 801 | arpymastro |
76,107,450 | 5,091,720 | Flask AttributeError: module 'flask.json' has no attribute 'JSONEncoder' | <p>My flask app was working prior to upgrades. I was having trouble with sending email when there was a forgot-reset-password. To try and fix this I recently upgraded some modules for my flask app. The modules that I upgraded with current versions are:</p>
<ul>
<li>email-validator==2.0.0.post2</li>
<li>Flask==2.3.1</li... | <python><flask> | 2023-04-26 05:29:05 | 8 | 2,363 | Shane S |
76,107,382 | 11,148,296 | Default values in class inheritance | <p>I came across this code from Azure Python SDK</p>
<pre class="lang-py prettyprint-override"><code>class BlobConverter(meta.InConverter,
meta.OutConverter,
binding='blob',
trigger='blobTrigger'):
@classmethod
def check_input_type_annotation(cls, pyty... | <python> | 2023-04-26 05:18:29 | 1 | 1,660 | Olsgaard |
76,107,371 | 7,250,111 | How to set different point sizes in VisPy? | <p>This is an example that I referred to : <a href="https://github.com/vispy/vispy/blob/d7763448dd398e5dab91cc21db7378c1aa707c63/vispy/visuals/line/line.py#L273" rel="nofollow noreferrer">https://github.com/vispy/vispy/blob/d7763448dd398e5dab91cc21db7378c1aa707c63/vispy/visuals/line/line.py#L273</a></p>
<pre><code>clas... | <python><vispy> | 2023-04-26 05:15:55 | 0 | 2,056 | maynull |
76,107,270 | 6,810,602 | Wrong tuple size for returned value. Expected 23, got 13 in SNOWFLAKE Python UDTF function? | <p>I have registered a Python udtf. This udtf performs data processing using the <code>pandas</code> library - groupby and pivot operations for feature engineering process. At the end it returns 23 columns.</p>
<p>When I call this udtf using the select statement and partition over by () command, it gives me the followi... | <python><snowflake-cloud-data-platform> | 2023-04-26 04:52:05 | 1 | 371 | Dhvani Shah |
76,107,265 | 4,417,586 | Write uploaded file by chunks in an async context | <p>I have a Python async function receiving a <a href="https://docs.djangoproject.com/en/4.2/ref/files/uploads/" rel="nofollow noreferrer"><code>django.core.files.uploadedfile.TemporaryUploadedFile</code></a> from an Django API endpoint, as well as from a Django form.</p>
<p>Once this function/coroutine is launched, it... | <python><django><asynchronous><python-asyncio> | 2023-04-26 04:51:25 | 0 | 1,152 | bolino |
76,107,214 | 14,109,040 | Group by and diffrence timestamps in consecutive rows | <p>I have the following data frame with a list of periods and timestamps. I want to group by period and sort by timestamp (to make sure the observations are in chronological order within the periods), then difference the corresponding timestamps - to calculate the difference between the current observation and the next... | <python><pandas> | 2023-04-26 04:38:58 | 1 | 712 | z star |
76,107,177 | 16,971,617 | os walk with specific extension | <p>I want to loop through files with extension ends with CR2, CR3, cr2, cr3 (contain cr in the extensions) only. Currently, I am using os.walk() but people recommend to use pathlib which I can do something like <code>path.glob('*.jpg')</code> but still I cannot specify the desired condition. Is there a better way to do... | <python><pathlib> | 2023-04-26 04:30:05 | 3 | 539 | user16971617 |
76,107,092 | 6,653,602 | Django using prefetch_related to reduce queries | <p>I am trying to understand how I can improve the following query:</p>
<pre><code>class PDFUploadRequestViewSet(viewsets.ModelViewSet):
def get_queryset(self):
project_id = self.request.META.get('HTTP_PROJECT_ID', None)
if project_id:
return PDFUploadRequest.objects.filter(project_id=p... | <python><django><django-rest-framework> | 2023-04-26 04:05:06 | 1 | 3,918 | Alex T |
76,106,963 | 6,539,586 | Calling Different Function Based on Config | <p>I'm trying to build a framework that takes in a file with data and depending on the name of the file calls a different function to transform that data. I can handle all the mapping parts, so far I just have a yaml config that maps file patterns to a schema string that represents the file that contains the function (... | <python><function><import> | 2023-04-26 03:26:26 | 0 | 730 | zachvac |
76,106,619 | 11,098,908 | How to define a class that has a relationship with other classes | <p>I tried to define the class <code>Interaction</code> that had a relationship with other classes (<code>Teacher</code> and <code>Student</code>) as follows</p>
<pre><code>class Teacher(Person):
def __init__(self, age: int, subjects: list[Subject] | None = None) -> None:
super().__init__(age)
if... | <python><class><oop> | 2023-04-26 01:55:36 | 1 | 1,306 | Nemo |
76,106,554 | 15,542,245 | Why a numpy array appears to have no shape? | <p>I understand the following:</p>
<pre><code>import numpy as np
arr = np.array([[1, 2, 3, 4], [5, 6, 7, 8]])
print(arr.shape)
</code></pre>
<p>Output:</p>
<pre><code>(2, 4)
</code></pre>
<p>So I was wondering why I get the following:</p>
<pre><code>import numpy
import pytesseract
import logging
# Raw call does not... | <python><arrays><numpy><python-tesseract> | 2023-04-26 01:35:53 | 2 | 903 | Dave |
76,106,550 | 3,398,324 | Fill Missing value in Pandas Dataframe combined with Merge | <p>My dataframe has misaligned observations, that is the dates do not match because the columns are pairs of dates and values that were generated invidiually via API, like so:</p>
<pre><code>data = {'Date.0': ['1/1/2022','1/2/2022', '1/3/2022','1/4/2022'], 'ABC Return': [11, 21, 31, 41], 'Date.1': ['1/1/2022','1/2/2022... | <python><pandas><dataframe> | 2023-04-26 01:34:37 | 2 | 1,051 | Tartaglia |
76,106,372 | 2,192,824 | What is the simplest way to count the occurrences of different numbers in a sorted array? | <p>For example there is a sorted array <code>[1,1,1,2,2,3,3,4,5,5]</code>, without using map/hashtable, just using index, how to check whether all different numbers have the same count? This example should return <code>False</code>, while <code>[1,1,3,3,6,6]</code> should return <code>True</code>. What would be the cod... | <python><arrays><algorithm> | 2023-04-26 00:37:16 | 3 | 417 | Ames ISU |
76,106,273 | 1,444,564 | Delphi, Python4Delphi, Anaconda, Oct2Py, and Octave on Windows | <p>I have a Delphi Win32 program that needs to run some scripts on Octave. I've taken the approach of going through Python4Delphi to get to a Python "environment", where I can write and run scripts that access Octave via Oct2Py. In order to get Oct2Py to install, I gave up doing so with my Windows Python inst... | <python><delphi><octave><oct2py><python4delphi> | 2023-04-26 00:06:39 | 1 | 723 | Bob |
76,106,117 | 2,476,219 | Python resolve ForwardRef | <p>I have a typing.ForwardRef object as a remnant from earlier generic programming shenanigans. At this point I know the class represented by the ForwardRef exists, but how can I retrieve this type?</p>
<p>A fairly minimal example of what I am doing. Convoluted solution for this example, but for the actual use case it ... | <python><generics> | 2023-04-25 23:23:44 | 1 | 3,688 | Aart Stuurman |
76,106,109 | 219,153 | Using "match" as a method name in Python class | <p>I have a Python class <code>Shape</code>, which can perform matching. I called the corresponding method <code>match</code>:</p>
<pre><code>class Shape:
...
def match(self, image):
</code></pre>
<p>and it is working, as far as I can tell. Is there a reason to avoid using <code>match</code> keyword as a method nam... | <python><naming-conventions><keyword> | 2023-04-25 23:22:02 | 0 | 8,585 | Paul Jurczak |
76,106,024 | 7,175,945 | Is there a way to get weights for interaction terms using `vowpalwabbit.Workspace.get_weight_from_name`? | <p>Consider the following workspace:</p>
<pre class="lang-py prettyprint-override"><code>import vowpalwabbit
# define our workspace, a contextual epsilon-greedy bandit with interaction terms
model = vowpalwabbit.Workspace("--cb_explore_adf -b 20 -q UA --quiet --epsilon 0.20")
# we learn on two examples
mode... | <python><vowpalwabbit> | 2023-04-25 23:00:25 | 0 | 1,071 | Dascienz |
76,106,015 | 13,763,436 | Error when importing SciPy within an application | <p>I have a python application running on the latest Raspberry Pi OS (Debian version 11 (bullseye)) and I am getting an error when importing SciPy. The specific error is:</p>
<pre><code>from scipy.linalg import _fblas
ImportError: libf77blas.so.3: cannot open shared object file: No such file or directory
</code></pre>
... | <python><scipy><raspberry-pi> | 2023-04-25 22:59:13 | 1 | 403 | stackoverflowing321 |
76,105,995 | 7,212,809 | Two levels of sampling | <p>I have a bunch of <code>Thing</code>s.</p>
<p>A <code>Thing</code> is a struct with a field, <code>source</code>, typed as a string.</p>
<p>Currently I get a deterministic sampled selection of <code>Things</code> by simply hashing the Thing.</p>
<pre><code>def is_thing_sampled(t: Thing):
hashed_thing = my_determ... | <python><random><sampling> | 2023-04-25 22:55:49 | 1 | 7,771 | nz_21 |
76,105,951 | 3,285,014 | Search and print result along with earlier information | <p>I have total 30 test result files, each having 12 iterations in it. The structure of the file is as below:</p>
<p><strong>File1_loc/result.txt</strong></p>
<pre><code># starting information
# User information
# Time stamps
# Random infomration
# Thousnads of lines in between
# ----------------- Iteration 1 ---------... | <python><awk><sed> | 2023-04-25 22:44:26 | 2 | 319 | user3285014 |
76,105,937 | 2,903,532 | Serve and request in the same python script | <p>I am trying to briefly spin up an HTTP server, so that I can call a subprocess that needs to access local files over HTTP, but running the server using the following code blocks further code from executing:</p>
<pre class="lang-py prettyprint-override"><code>import http.server
import socketserver
PORT = 8000
Handl... | <python><http><concurrency><subprocess><kill> | 2023-04-25 22:41:05 | 2 | 1,285 | reynoldsnlp |
76,105,921 | 2,016,632 | How ephemeral is the storage of Docker Cloud Run - Can multiple browsers see the same data? Multiple threads? | <p>I have a large BigQuery where the data is a Json dictionary at each time stamp. When a user clicks upload data on a browser, an Ajax command is initiated to tell python to download from Bigquery, crack the Json, apply various user-determined FFT's, etc and then present data back to the user for display. This is all ... | <python><docker><google-cloud-platform><caching><bigdata> | 2023-04-25 22:38:04 | 1 | 619 | Tunneller |
76,105,902 | 1,045,755 | Returning Pandas DataFrame in FastAPI response model | <p>I am trying to return a Pandas DataFrame using FastAPI.</p>
<p>My response model looks something like:</p>
<pre><code>class Response(BaseModel):
df: Dict
date: str
</code></pre>
<p>I then have my function run, which creates a Pandas data frame, and a date, which I am currently trying to return via:</p>
<pre>... | <python><pandas><dataframe><fastapi> | 2023-04-25 22:34:57 | 1 | 2,615 | Denver Dang |
76,105,875 | 120,457 | gitlab ci/cd piple shell script is not working out of python script | <p>The following script in gitlab ci/cd - but it works locally on runner machine. but when i try in gitlab it shows empty addres list - how tried array and everything its not working</p>
<pre><code>script:
- >
#!/bin/bash
cd address;
echo 'STARTING generate address';
address_list=$(python3... | <python><gitlab><git-bash><gitlab-ci-runner> | 2023-04-25 22:31:04 | 0 | 35,235 | joe |
76,105,821 | 19,675,781 | How to filter pandas dataframe by a feature value ending with Case sensitive letter | <p>I have a data frame like this:
df:</p>
<pre><code>C1 C2
Ford 11
ram 13
SUV 19
SEDAN 14
</code></pre>
<p>I want to filter the data frame column C1 where the C1 values end with a upper case character. So the expected output looks like this:</p>
<pre><code>C1 C2
SUV 19
SEDAN 14
</code></pre>
<p>I tried dif... | <python><pandas><regex><dataframe> | 2023-04-25 22:19:14 | 1 | 357 | Yash |
76,105,818 | 6,606,057 | Observation Specific Confidence for Random Forests in R and Python | <p>I have a classification task for which I have a binary outcome -- however, I need to know the level of confidence in classifying each row (the row could be a observation, participant, subject, etc.).</p>
<p>Confidence could be a residual for the row, specificity, sensitivity/Recall, or f-score for the decision node ... | <python><r><classification><binary-tree><random-forest> | 2023-04-25 22:18:35 | 1 | 485 | Englishman Bob |
76,105,792 | 2,128,799 | Using a pivot table to create a tree-like structure and how to create efficient queries? | <p>In our codebase we have a set of models that represent AI models and their training data. When people train new models they are usually trained off an existing AI model in the database, and we wanted to track a sort of "versioning" of these models, so that people can use prior versions, and create branchin... | <python><django><postgresql><django-rest-framework> | 2023-04-25 22:12:11 | 1 | 1,294 | Dash Winterson |
76,105,751 | 4,431,535 | Why does the python installed by conda's defaults report the wrong mac platform? | <p>I use <code>miniconda</code> on <code>macOS</code> Ventura (13.3). When doing an experiment recently, I found that <code>platform.platform()</code> called from <code>python</code> installed from the <code>defaults</code> channel reports a different (and incorrect) version of macOS compared to both the system python ... | <python><macos><conda> | 2023-04-25 22:03:07 | 0 | 514 | pml |
76,105,738 | 231,670 | How to mock a function imported from inside another function or method? | <p>I don't make a habit of this, but sometimes, in an effort to work around a circular import, I'll import a function from inside another function or method like this:</p>
<pre class="lang-py prettyprint-override"><code>class MyClass:
def my_method(self):
from somewhere import the_thing
x = the_thin... | <python><mocking><python-unittest> | 2023-04-25 22:01:02 | 1 | 6,468 | Daniel Quinn |
76,105,697 | 5,049,813 | Efficiently remove a maximum amount of binary elements while keeping row and column sums above a certain level | <p>I have the following problem and I'm having difficulty writing an optimized program for it.</p>
<p>I'm given a 2D binary numpy array (all elements are either 0 or 1, and its shape is (n, m)), and I need to remove the maximum number of elements from the array, while maintaining the property that the sum of each row i... | <python><optimization> | 2023-04-25 21:51:06 | 1 | 5,220 | Pro Q |
76,105,680 | 11,462,274 | How transport the values of a specific column of a dataframe only to the first match of each combination? | <p><code>df_1</code> has the columns <code>team1</code> and <code>team2</code>, and <code>df_2</code> has the columns <code>runner_home</code> and <code>runner_away</code>.</p>
<p>I would like that when the values of these columns are the same in any of the rows of both dataframes, then the value of the <code>odds</cod... | <python><pandas><dataframe> | 2023-04-25 21:48:27 | 1 | 2,222 | Digital Farmer |
76,105,627 | 7,988,497 | SQLModel many-many relationships not working | <p>I've been struggling with this for weeks now. Here's the relevant code:</p>
<pre><code>Base = declarative_base()
class Band_Genre(SQLModel, table=True):
genre_id: Optional[int] = Field(default=None, foreign_key="FK_Band_Genre_Genre", primary_key=True)
band_id: Optional[int] = Field(default=None, ... | <python><sqlalchemy><sqlmodel> | 2023-04-25 21:39:46 | 1 | 1,336 | MichaelD |
76,105,551 | 688,080 | For type hinting purposes, what are the advantages of np.typing.NDArrray over np.ndarray? | <p>If we check the source of numpy, we will find in <a href="https://github.com/numpy/numpy/blob/main/numpy/__init__.pyi#L1477" rel="nofollow noreferrer">numpy/__init__.py</a> that <code>ndarray</code> is declared as</p>
<pre><code>class ndarray(_ArrayOrScalarCommon, Generic[_ShapeType, _DType_co])
</code></pre>
<p>and... | <python><numpy><python-typing> | 2023-04-25 21:26:49 | 1 | 4,600 | Ziyuan |
76,105,512 | 3,398,324 | Convert daily returns to 2 day or 5 day returns | <p>This question was asked for prices but not for returns to my knowledge (not in Python at least). I would like to convert my given daily returns to other frequencies, like 2 day or 5 day returns.</p>
<p>This is what I have:</p>
<pre><code>data = {'date': ['1/1/2022','1/1/2022', '1/2/2022','1/2/2022'], 'ticker': ['A',... | <python><pandas><quantitative-finance> | 2023-04-25 21:21:24 | 2 | 1,051 | Tartaglia |
76,105,430 | 10,504,481 | Jupyter Iframe and Flask | <p>I wrote a Flask app that uses three.js and wanted to make it possible to view it from inside a Jupyter Notebook. The app is designed to run locally.</p>
<p>What I'm currently doing is:</p>
<pre class="lang-py prettyprint-override"><code>import dataclasses
import socket
import threading
import webbrowser
from zndraw... | <python><flask><jupyter-notebook><three.js> | 2023-04-25 21:07:48 | 0 | 506 | PythonF |
76,105,385 | 8,807,152 | Problem in usage of Apache AGE python driver after installation | <p>I am getting start with Apache AGE python driver and learning about it, at the current time I am exploring the samples that was provided on GitHub so I have decided to go on with an online jupyter platform to test on [google-colab] is the selected one,
I have followed the installation guide so that at the beginning ... | <python><python-3.x><apache-age> | 2023-04-25 20:58:54 | 3 | 1,263 | rrrokhtar |
76,105,355 | 881,224 | Mypy Incompatible types in assignment when relying on dynamic access, expression has type "object" | <p>I would like to know why this isn't correct. Here is a small example that highlights the error:</p>
<pre class="lang-py prettyprint-override"><code>import typing
kwargs: dict = {}
region, city, state = kwargs.get('region'), kwargs.get('city'), kwargs.get('state')
ordered_params = [city, state, region]
last = None
... | <python><python-typing><mypy> | 2023-04-25 20:52:33 | 1 | 7,169 | yurisich |
76,105,340 | 2,729,922 | PyFlink KafkaSink throws AttributeError: 'NoneType' object has no attribute 'startswith' | <p>I am trying to read a kafka topic and write the same in another kafka topic using KafkaSource/KafkaSink in pyflink (flink version 1.16). Reading from kafka topic works and I am able to print the result but when trying to send to kafka using KafkaSink I get the following exception:</p>
<pre><code>NOTE: Picked up JDK_... | <python><apache-kafka><apache-flink><flink-streaming><pyflink> | 2023-04-25 20:50:50 | 0 | 342 | Monika X |
76,105,330 | 12,368,238 | Monitoring Lambda ephemeral storage use without Insights | <p>I'd like to monitor the usage of our Lambdas' ephemeral storage, but I don't want to use the UI tools like Lambda Insights. We currently have a log-scanning python script set up that reads the logs to attain runtime, memory use/limit, etc., but also to find specific things in the logs like code warnings, errors, and... | <python><amazon-web-services><aws-lambda><amazon-cloudwatchlogs><ephemeral-storage> | 2023-04-25 20:48:32 | 1 | 514 | autonopy |
76,105,321 | 16,305,340 | cv2.findContours() can't find the contours perfectly | <p>so I am trying to refill black holes in the image using contours, here is the original image:</p>
<p><a href="https://i.sstatic.net/K2qBM.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/K2qBM.jpg" alt="enter image description here" /></a></p>
<p>I then tried to use this code to fill this only small bl... | <python><opencv> | 2023-04-25 20:47:57 | 1 | 1,893 | abdo Salm |
76,105,225 | 2,112,406 | How to let python know where a certain library is? | <p>I compiled and installed LLVM from source to an arbitrary path: <code>/arbitrary/path/llvm</code>. I then compiled and installed a package that has a python module, and needs the LLVM libraries. When I try to import the module:</p>
<pre><code>>>> import module_name
</code></pre>
<p>I'm getting the error:</p... | <python><llvm> | 2023-04-25 20:33:41 | 0 | 3,203 | sodiumnitrate |
76,105,218 | 523,612 | Why does tkinter (or turtle) seem to be missing or broken? Shouldn't it be part of the standard library? | <p>I have seen many different things go wrong when trying to use the Tkinter standard library package, or its related functionality (turtle graphics using <code>turtle</code> and the built-in IDLE IDE), or with third-party libraries that have this as a dependency (e.g. displaying graphical windows with Matplotlib).</p>... | <python><tkinter><installation><modulenotfounderror> | 2023-04-25 20:32:47 | 6 | 61,352 | Karl Knechtel |
76,105,056 | 1,006,183 | Best way to exclude unset fields from nested FastAPI model response | <p>Assuming I have Pydantic-based FastAPI models similar to:</p>
<pre class="lang-py prettyprint-override"><code>class Filter(BaseModel, extra=Extra.forbid):
expression: str | None
kind: str | None
...
class Configuration(BaseModel):
filter: Filter | None = {}
....
</code></pre>
<p>By default a mo... | <python><fastapi><pydantic> | 2023-04-25 20:08:40 | 1 | 11,485 | Matt Sanders |
76,104,929 | 2,184,517 | Python import cannot find module | <p>Brand new to python and can't manage to get my import resolved when I debug my test within vscode.</p>
<p>Project structure:</p>
<pre><code>a/b/c/d/service/functions/s3_proxy.py
a/b/c/d/service/functions/__init__.py
a/b/c/d/service/tests/test_s3_proxy.py
a/b/c/d/service/tests/__init__.py
</code></pre>
<p><strong>te... | <python> | 2023-04-25 19:54:02 | 3 | 1,840 | AfterWorkGuinness |
76,104,901 | 19,325,656 | DRF return errors from model validation | <p>I have models and serializers. Errors that are returned from the serializer are helpful because I can send them as a response to API and user can correct invalid data.</p>
<p>However, errors that are from models are useless for me. They return 500 error and they don't have a body that I can send back to the user.</p... | <python><django><django-models><django-rest-framework><django-serializer> | 2023-04-25 19:49:39 | 1 | 471 | rafaelHTML |
76,104,852 | 4,772,836 | Attribute error __aenter__ Airflow deferrable sensor | <p>So, basically I am trying to create a deferrable sensor in airflow by following the guide <a href="https://airflow.apache.org/docs/apache-airflow/stable/authoring-and-scheduling/deferring.html#writing-deferrable-operators" rel="nofollow noreferrer">here</a>.</p>
<p>So, basically, my trigger's async run method has be... | <python><airflow><python-asyncio> | 2023-04-25 19:43:14 | 0 | 1,060 | Saugat Mukherjee |
76,104,818 | 8,182,118 | Why would you install your package in editable mode in order to test it? | <p>Some of the packaging / testing guides like <a href="https://simonwillison.net/2021/Nov/4/publish-open-source-python-library/" rel="nofollow noreferrer">Simon Willison's</a> use editable install to test, locally which is understandable (kind-of) but also on CI which it seems a lot less so?</p>
<p>What are the advant... | <python><testing><continuous-integration> | 2023-04-25 19:37:45 | 1 | 43,706 | Masklinn |
76,104,775 | 19,834,019 | Separating coroutine generation and execution, ensuring proper closing | <p>I feel as if the answer to this should be simple, but I'm having trouble. First, I'll clarify that my understanding is that I want to deal with coroutines and not tasks as, to create a task is to automatically schedule something on the event loop. I just want to pass around coroutines that I can properly order to ac... | <python><python-3.x><async-await> | 2023-04-25 19:31:03 | 1 | 303 | Ambiguous Illumination |
76,104,761 | 4,943,329 | Strange behavior in Head pose estimation algorithm when face is moved away from center of image | <p>I am trying to perform head pose estimation (determine the yaw, pitch, and roll of a face image). I first do face and landmark detection to obtain the 2D face landmark coordinates. Using these coordinates, along with 3D reference face landmark coordinates, I use OpenCVs PnP algorithm, Rodrigues algorithm, and then d... | <python><opencv><computer-vision><euler-angles><opencv-solvepnp> | 2023-04-25 19:29:23 | 1 | 1,311 | cyrusbehr |
76,104,708 | 11,331,843 | Multi Thread execution for webscrapping with Selenium throwing errors - Python | <p>I have around 30k license numbers that I want to search from a website and extract all the relevant information from it
When I tried the extracting the information from the function below by looping through multiple license_nums the code works fine and gives me what I am looking for</p>
<pre><code># create a UserAge... | <python><python-3.x><multithreading><selenium-webdriver><web-scraping> | 2023-04-25 19:21:00 | 1 | 631 | anonymous13 |
76,104,702 | 1,914,781 | append spliter row after rows which contains 'REL' in action column | <p>I would like to add a split row after row which continas "REL" keyword.</p>
<pre><code>import pandas as pd
data = [
[1,'ACQ','A'],
[2,'REL','A'],
[3,'ACQ','B'],
[4,'REL','B'],
[5,'ACQ','C'],
[6,'REL','C'],
[7,'ACQ','A'],
[8,'REL','A']
]
df = pd.DataFrame(data,columns=['x... | <python><pandas> | 2023-04-25 19:20:04 | 3 | 9,011 | lucky1928 |
76,104,557 | 16,305,340 | how to convert a single RBG color to YCbCr color space using opencv? | <p>so I am trying to convert a single RGB colour whose values is (232, 190, 172) to YCbCr color space using <a href="https://docs.opencv.org/3.4/d8/d01/group__imgproc__color__conversions.html#ga397ae87e1288a81d2363b61574eb8cab" rel="nofollow noreferrer">cv2.cvtColor()</a> but I get an error stating:</p>
<pre><code>erro... | <python><opencv> | 2023-04-25 18:58:51 | 1 | 1,893 | abdo Salm |
76,104,472 | 19,533,532 | Python str.lower() causes memory leak | <p>Initially I've noticed this problem when I worked with a huge DataFrame, tried to apply to str.lower() to string-features and it cost me 10 GB of memory.</p>
<p>I decided to investigate this problem on simplified example and that's what I've found:</p>
<p>At first check how much memory a process takes:</p>
<pre><cod... | <python><python-3.x><string><memory-leaks> | 2023-04-25 18:46:41 | 1 | 528 | mz2300 |
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