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78,457,199
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How to sort Pandas dataframe by column using the key argument
<p>Assume a Pandas data frame (for the sake of simplicity, let's say with three columns). The columns are titled <code>A</code>, <code>B</code> and <code>d</code>.</p> <pre><code>$ import pandas as pd $ df = pd.DataFrame([[1, 2, &quot;a&quot;], [1, &quot;b&quot;, 3], [&quot;c&quot;, 4, 6]], columns=['A', 'B', 'd']) $ d...
<python><pandas><sorting><key>
2024-05-09 22:17:44
2
1,793
Michael Gruenstaeudl
78,457,178
15,045,363
How to get clear sky irradiance with horizon in PVLib?
<p><strong>Is there a way to take into account the horizon in PVLib ?</strong></p> <p>I have PV systems in the mountains, so with high neigbouring montains affecting the horizon. I have simulated the clearsky irradiance with PVLib, PVGis with and without horizon (see next figure). We see that the difference is signific...
<python><pvlib>
2024-05-09 22:11:20
1
865
Maxime Charrière
78,457,128
19,048,408
How do I configure Python "ruff" to sensibly format Polars?
<p>How do I configure Ruff to sensibly auto-format Python code for the Polars library?</p> <p>With the default settings, it likes to left-align <code>.select</code>/<code>.with_columns</code> calls with many arguments. The following is how ruff/black both format it (which is difficult to read):</p> <pre class="lang-py ...
<python><python-polars><ruff>
2024-05-09 21:54:10
0
468
HumpbackWhale194
78,457,093
2,893,712
Pandas Map Multiple Columns With A Filter
<p>I have a dataframe like so (simplified for this example)</p> <pre><code> Site LocationName Resource# 01 Test Name 5 01 Testing 6 02 California 10 02 Texas 11 ... </code></pre> <p>Each site has their own mapping for <...
<python><pandas><dictionary><pandas-settingwithcopy-warning>
2024-05-09 21:41:01
2
8,806
Bijan
78,456,984
552,247
socat to simulate noisy serial line
<p>due to educational purposes I have some scenarios to deal with.<br> The main one is to simulate a noisy serial line using socat (I currently have version 1.7.4)</p> <p>I'll elaborate:<br> I have software that has to do with protocols over serial. I need to test its reliability and performance against errors and comm...
<python><pty><socat>
2024-05-09 21:06:23
1
1,598
mastupristi
78,456,944
10,470,517
Flask App running within Docker for File Upload
<p>I wrote the following flask application which will collect a file selected and then upload it to a database running in sql lite. If i run the app locally, it works fine with the table created in the database and all the data uploaded. However if I run the app using docker, I get a 200 on file upload but do not see t...
<python><docker><sqlite><flask><makefile>
2024-05-09 20:54:55
1
419
caliGeek
78,456,849
1,100,107
Recursive R function and its Python translation behave differently
<p>Here is a recursive R function involving a matrix <code>S</code> from the parent environment:</p> <pre class="lang-r prettyprint-override"><code>f &lt;- function(m, k, n) { if(n == 0) { return(100) } if(m == 1) { return(0) } if(!is.na(S[m, n])) { return(S[m, n]) } s &lt;- f(m-1, 1, n) i &...
<python><r><recursion>
2024-05-09 20:26:16
5
85,219
Stéphane Laurent
78,456,828
13,392,257
Selenium emulate site you came from
<p>When I am opening the url via link <a href="https://kinoxor.pro/650-mir-druzhba-zhvachka-2024-05-06-19-54.html" rel="nofollow noreferrer">https://kinoxor.pro/650-mir-druzhba-zhvachka-2024-05-06-19-54.html</a> -- I have an error - <code>Internal Server Error</code></p> <p><a href="https://i.sstatic.net/5175p7IH.png" ...
<python><parsing><selenium-webdriver><web-scraping>
2024-05-09 20:19:32
1
1,708
mascai
78,456,761
1,015,703
Example of meson-python Cython package with src layout
<p>I am having trouble finding a minimal example of a Cython project that uses meson-python for packaging and is set up using the &quot;src layout&quot; (as described <a href="https://packaging.python.org/en/latest/discussions/src-layout-vs-flat-layout/" rel="nofollow noreferrer">here</a>).</p> <p>I have seen examples ...
<python><cython><python-packaging><meson-build>
2024-05-09 20:02:20
1
1,625
David H
78,456,707
11,516,350
Flask SQL, alembic and SQlite: how to avoid delete object when is referenced (Foreign Key)
<p>Given 2 tables: transactions and categories.</p> <p>Transactions contains a FK category_id with the ID of assigned category.</p> <p>I want to not allow delete categories referenced by transactions. I mean: if there is one transaction with category_id 3, for example, I want to get an error from DB if delete the categ...
<python><sqlite><sqlalchemy><relational-database><alembic>
2024-05-09 19:49:11
0
1,347
UrbanoJVR
78,456,670
5,563,616
How to convert hierarchical TCL string value containing dictionaries into an equivalent Python hierarchical value?
<p>I have hierarchical TCL values represented as strings like this: <code>a {x y v w} b {i j k m}</code>.</p> <p>The above value contains 3 dictionary objects, which can be queried using TCL expressions.</p> <p>I need to convert a value like this to a corresponding Python hierarchical value. For the above string the Py...
<python><tcl>
2024-05-09 19:42:24
2
1,682
Jennifer M.
78,456,651
4,418,481
plotly-resampler with plotly offline figure
<p>I created a simple PyQt app that basically reads CSV files and shows their data in a plot. I decided to display the figures using Plotly offline so I displayed them in a PyQt widget called QWebEngine by providing an HTML of the figure:</p> <pre><code>traces = self.prepare_traces() layout = go.Layout(xaxis=dict(titl...
<python><plotly><plotly-resampler>
2024-05-09 19:36:44
0
1,859
Ben
78,456,371
10,818,030
Error: the command pytest could not be found within PATH
<p>I am trying to run a suite using pytest with this command:</p> <p><code>pytest -n8 --dc=us best_practice/desktop_web/</code></p> <p>However, when I try to execute the run, I get the error:</p> <p><code>Error: the command pytest (from best-practice-desktop-us) could not be found within PATH.</code></p> <p>I verified ...
<python><path><pytest>
2024-05-09 18:37:03
0
657
Casey Cling
78,456,247
4,159,461
How start python-telegram-bot in a Thread
<p>I need to run the telegram bot in a separete thread to have the main thread free, but I have bad times tring this.</p> <p>Follow the piece of code that I have used to test</p> <p>bot_thread.py</p> <pre><code> import logging import asyncio from telegram import Update from telegram.ext import Applicati...
<python><multithreading><telegram-bot>
2024-05-09 18:11:10
0
571
DevBush
78,456,203
11,233,365
Pip install failing on pip >22.2.2 when installing packages from PyPi via proxy, but not from PyPi directly
<p><strong>UPDATE</strong> After further study, I found that I have grossly misunderstood the problem I'm encountering, and have re-written the question to reflect the correct, up-to-date details.</p> <p>================</p> <p>I am trying to install a Python package on a local machine that does not have direct access ...
<python><pip>
2024-05-09 17:59:54
0
301
TheEponymousProgrammer
78,456,176
10,500,957
Sharing Class Variables in Python
<p>After looking through many posts of class variables and instance variables I am not understanding how to share variables among classes.</p> <pre><code>#!/usr/bin/python3 from PyQt5.QtWidgets import (QApplication) import sys class One(): def __init__(self, myTextString, parent=None): self.mytext = myTextS...
<python><class><variables><instance>
2024-05-09 17:53:55
1
322
John
78,456,105
15,277,591
How to scrape HTML with Python?
<p>I'm working on a Python script to scrape data from this page: <a href="https://www.immobiliare.it/search-list/?criterio=rilevanza&amp;__lang=it&amp;idContratto=1&amp;idCategoria=1&amp;raggio=300&amp;centro=45.185878%2C9.156321&amp;pag=1#1466423673" rel="nofollow noreferrer">https://www.immobiliare.it/search-list/?cr...
<python><web-scraping><beautifulsoup><python-requests>
2024-05-09 17:37:29
1
342
CastoldiG
78,456,079
234,146
why does numpy complain about matplotlib install errors
<p>I'm testing a python 3.7-32 installation using pip to install numpy. During the clean install of python in an empty directory using</p> <pre><code>pip -install numpy-1.21.6-cp37-cp37m-win32.whl </code></pre> <p>I get the following errors:</p> <pre><code>ERROR: matplotlib 3.5.3 requires packaging&gt;=20.0, which is ...
<python><numpy><matplotlib>
2024-05-09 17:30:25
0
1,358
Max Yaffe
78,455,901
2,707,955
How to find the mathematical function from list of plots
<p>I would like to find the mathematical function that could approximately fit all of the following points :</p> <p><a href="https://i.sstatic.net/40AWOyLj.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/40AWOyLj.png" alt="plots" /></a></p> <pre><code>x = [560, 387, 280, 231, 196, 168, 148, 136, 124, 112...
<python><numpy>
2024-05-09 16:50:51
2
365
Aurélien
78,455,739
12,288,028
Selecting extreme temperature values from pandas dataframe column where selection process includes several complicating conditions
<p>Have weather data set that includes daily high temperature in Celsius in a pandas dataframe that is as simple as the date and daily high temperature (rounded to the tenth value). Here is a sample data set:</p> <pre><code>data_dict = { 'dates': ['2023-07-01', '2023-07-02', '2023-07-03', '2023-07-04', '2023-07-05'...
<python><pandas><dataframe><conditional-statements>
2024-05-09 16:15:59
1
486
MC Hammerabi
78,455,734
160,245
python lxml.html.parse not reading url - or how to get request.get into lxml.html.dom?
<p>The same code below works for many webpages, but for a few like the one below, it gives error:</p> <blockquote> <p>Error: Error reading file 'http://akademos-garden.com/homeschooling-tips-work-home-parents': failed to load HTTP resource</p> </blockquote> <p>Python to reproduce:</p> <pre><code>from lxml.html import p...
<python><python-3.x><lxml.html>
2024-05-09 16:15:21
1
18,467
NealWalters
78,455,685
2,817,520
Uploaded files are lost after automatic redirect to trailing '/'
<p>From the <a href="https://flask.palletsprojects.com/en/3.0.x/quickstart/#unique-urls-redirection-behavior" rel="nofollow noreferrer">flask documentation</a> a link when used without trailing slash redirects to it with the slash.</p> <p>In my case with the url ending in <code>/uploads/</code>, the following code prin...
<python><flask><file-upload><response.redirect>
2024-05-09 16:06:33
1
860
Dante
78,455,648
395,857
How can I find all exact occurrences of a string, or close matches of it, in a longer string in Python?
<p>Goal:</p> <ul> <li>I'd like to find all exact occurrences of a string, or close matches of it, in a longer string in Python.</li> <li>I'd also like to know the location of these occurrences in the longer string.</li> <li>To define what a close match is, I'd like to set a threshold, e.g. number of edits if using the ...
<python><string-matching><fuzzy-search>
2024-05-09 15:59:35
2
84,585
Franck Dernoncourt
78,455,598
13,313,873
numpy ignores "casting" argument
<p>Numpy version is 1.26.4</p> <pre><code>&gt;&gt;&gt; np.isnan('nan', casting='no') Traceback (most recent call last): File &quot;&lt;stdin&gt;&quot;, line 1, in &lt;module&gt; TypeError: ufunc 'isnan' not supported for the input types, and the inputs could not be safely coerced to any supported types according to t...
<python><numpy>
2024-05-09 15:50:36
0
955
noob overflow
78,455,345
11,197,957
Segmentation faults and memory leaks while calling GMP C functions from Python
<p>Work was quiet today, and so the team was directed to do some &quot;self-development&quot;. I decided to have some fun calling <strong>C</strong> functions from <strong>Python</strong>. I had already had a good time using Rust to speed up Python, but I kept hitting a brick wall whenever I wanted to work with integer...
<python><c><gmp>
2024-05-09 15:04:02
1
734
Tom Hosker
78,455,314
3,385,948
How to make Dash Ag-Grid column wider?
<p>I'm making a table in Python Dash Ag-Grid and I can't seem to make a column wider. I've got lots of extra space to the right, and I thought <code>columnSize=auto-size</code> or <code>columnSize=sizeToFit</code> would make the table fill the entire space.</p> <p></p> <p>Here's the column for <code>columnDefs</code>:<...
<python><ag-grid><plotly-dash>
2024-05-09 14:58:15
1
5,708
Sean McCarthy
78,455,290
12,810,409
Summing numpy array with an empty array
<p>I need to sum a normal numpy array with an empty array</p> <pre><code>x = np.ones([2,3]) x + np.array([]).reshape(2,-1) </code></pre> <p>Output:</p> <pre><code>ValueError: operands could not be broadcast together with shapes (2,3) (2,0) </code></pre> <p>Reshaping them to other dimensions does not work, e.g. <code>x...
<python><numpy><pytorch>
2024-05-09 14:54:08
1
378
Toon Tran
78,455,273
4,737,944
In Python unittest, how can I access the instance on which a mock method was called?
<p>I have a Python class structure similar to the following example:</p> <pre class="lang-python prettyprint-override"><code> class Foo: def start(self): # do something class FooBar(Foo): def __init__(self, param): self.param = param def run(self): # do something else class ProductionClass: ...
<python><python-unittest>
2024-05-09 14:51:15
1
433
ronin667
78,455,268
6,693,247
Python and pip misconfiguration leads to package installation errors
<p>I'm facing an issue with Python and pip where packages are not being installed under the correct version of Python. I am using Python 3.9.6:</p> <pre><code>python3 -V Python 3.9.6 </code></pre> <p>The pip version</p> <pre><code>pip3 --version pip 21.2.4 from /Library/Developer/CommandLineTools/Library/Frameworks/Pyt...
<python><python-3.x><pip>
2024-05-09 14:50:04
2
400
dand1
78,455,226
12,881,307
robocorp-windows find window from executable with spaces in path
<p>I want to build an RPA to automate some tasks in different windows computers. I've been looking for frameworks or libraries to do so in Python and <a href="https://robocorp.com/docs/python/robocorp/robocorp-windows/api" rel="nofollow noreferrer">robocorp-windows</a> seems more robust than other options (I've seen RP...
<python><python-3.x>
2024-05-09 14:43:35
1
316
Pollastre
78,455,102
395,857
Why doesn't fuzzywuzzy's process.extractBests give a 100% score when the tested string 100% contains the query string?
<p>I'm testing <code>fuzzywuzzy</code>'s <code>process.extractBests()</code> as follows:</p> <pre><code>from fuzzywuzzy import process # Define the query string query = &quot;Apple&quot; # Define the list of choices choices = [&quot;Apple&quot;, &quot;Apple Inc.&quot;, &quot;Apple Computer&quot;, &quot;Apple Records&...
<python><nlp><string-matching><fuzzywuzzy>
2024-05-09 14:24:36
1
84,585
Franck Dernoncourt
78,455,055
8,547,516
SQLAlchemy case-sensitive Unicode Column
<p>The title does more or less say everything. I want to create a data model with SQLAlchemy and it should contain fields with values that contain unicode and should be considered case-sensitive.</p> <p>Until know my type is <code>sqlalchemy.Unicode(255)</code> but e.g. in mariadb this results in <code>utf8mb4_general_...
<python><sqlalchemy>
2024-05-09 14:15:59
0
1,250
gerum
78,455,045
7,433,420
Django Choices model field with choices of classes
<p>The following code was working in python 3.10 but not in 3.11 due to a change in the <code>enum</code> module.</p> <p>Now the app won't launch with the following error message :</p> <pre><code> File &quot;/home/runner/work/e/e/certification/models.py&quot;, line 3, in &lt;module&gt; from .certifications.models ...
<python><django><django-models><enums>
2024-05-09 14:14:35
1
908
WitoldW
78,454,950
5,183,434
Find the number of layers in an *ome.tif file using tifffile package
<p>Here are the standards for a pyramidal ome-tif file: <a href="https://docs.openmicroscopy.org/ome-model/5.6.3/ome-tiff/" rel="nofollow noreferrer">https://docs.openmicroscopy.org/ome-model/5.6.3/ome-tiff/</a></p> <p>These files are supported by the tifffile package in python: <a href="https://github.com/cgohlke/tiff...
<python><tiff>
2024-05-09 13:59:03
0
742
Jeff
78,454,844
5,072,692
Using Python read Refcursors returned from function in Postgres
<p>I have a function that returns a set of refcursors:</p> <pre><code>CREATE function func_name(func_date date) returns SETOF refcursor language plpgsql as $$ DECLARE ref1 refcursor := 'data_1'; ref2 refcursor := 'data_2'; BEGIN OPEN ref1 FOR SELECT * FROM users; RETURN NEXT ref1; OPEN re...
<python><postgresql><psycopg2>
2024-05-09 13:39:49
0
955
Adarsh Ravi
78,454,803
13,757,692
Pyplot background with color gradient, filling the whole figure
<p>I want to add a background to my Pyplot figure, so that it looks approximately like shown below:</p> <p><a href="https://i.sstatic.net/mGQKBmDsm.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/mGQKBmDsm.png" alt="enter image description here" /></a></p> <p>As far as I can tell, adding a color gradient...
<python><matplotlib><gradient>
2024-05-09 13:32:50
1
466
Alex V.
78,454,631
9,583,035
How create a tiff image from dataframe with a grid python
<p>I have a dataframe with a grid of 3 columns</p> <p>utm N utm E Value</p> <p>How can i create a tiff image using this grid ?</p> <p>Data:</p> <pre><code> E N value 0 754104.853089 7.105749e+06 -0.001245 1 755104.853089 7.105749e+06 -0.001168 2 756104.853089 7.10574...
<python><tiff>
2024-05-09 13:04:50
0
404
Vitor Bento
78,454,457
855,475
Pandas read_json Future Warning: The behavior of 'to_datetime' with 'unit' when parsing strings is deprecated
<p>I am updating pandas version from 1.3.5 to 2.2.2 on an old project. I am not very familiar with pandas, and I am stuck with a Future Warning:</p> <p>FutureWarning:</p> <p>The behavior of 'to_datetime' with 'unit' when parsing strings is deprecated. In a future version, strings will be parsed as datetime strings, mat...
<python><pandas>
2024-05-09 12:30:59
1
6,478
Martin Taleski
78,454,417
6,049,429
poetry show outdated from source
<p>I've two packages:</p> <ol> <li>package1</li> <li>package2</li> </ol> <p>I'm installing it from my source:</p> <pre><code>[[tool.poetry.source]] name = &quot;mysource&quot; url = &quot;https://example.com/mysource/simple/&quot; priority = &quot;explicit&quot; </code></pre> <p>pyproject.toml</p> <pre><code>[tool.poet...
<python><python-3.x><python-poetry>
2024-05-09 12:23:00
0
984
Cool Breeze
78,454,411
1,135,541
On Windws, Windows Subsystem for Linux (WSL) and every time I install Python, I get ModuleNotFoundError: No module named '_tkinter'
<p>On Ubuntu 24.04, Here is the Error I get:</p> <pre><code> [I] /home/sporty~&gt; pyenv install 3.12.2 Downloading Python-3.12.2.tar.xz... -&gt; https://www.python.org/ftp/python/3.12.2/Python-3.12.2.tar.xz Installing Python-3.12.2... python-build: use readline from homebrew python-build: use ncurses from homebrew ...
<python><python-3.x><tkinter><windows-subsystem-for-linux><tk-toolkit>
2024-05-09 12:21:31
0
1,911
user1135541
78,454,336
6,455,667
Python member variables of different data types not getting updated in different thread with same priority
<p>Consider this sample code:</p> <pre><code>class Test: def __init__(self) -&gt; None: self.bool = False self.string = &quot;&quot; thread = Thread(target = self.target) thread.start() def target(self): while True: if self.bool: print(&quot;B...
<python><multithreading><class><asynchronous><member>
2024-05-09 12:07:49
1
452
Anchith Acharya
78,454,286
2,731,575
Is there a way to use fuzzy selection to narrow the choices in a wx.ComboBox (wxWidgets)
<p>I want to populate a wx.ComboBox with a large number of items but rather than having to scroll through them all, I'd like to type a string into the ComboBox and narrow the items in the ComboBox using fuzzy search (I'm using '<a href="https://github.com/seatgeek/thefuzz" rel="nofollow noreferrer">thefuzz</a>').</p> <...
<python><combobox><wxpython><wxwidgets><fuzzywuzzy>
2024-05-09 11:57:15
0
371
wef
78,454,167
893,254
Pandas read_excel (or other) - does `skiprows` occur before `headers`?
<p>This is a question about the order in which two operations occur when the Pandas <code>read_excel</code> function is called. (Although this would also apply to other <code>read_X</code> type functions such as <code>read_csv</code>.)</p> <p>The <code>read_excel</code> function takes two arguments of interest</p> <ul>...
<python><pandas>
2024-05-09 11:35:21
2
18,579
user2138149
78,454,139
3,918,419
How to properly scale thumbnails in my custom list widget?
<p><strong>Problem:</strong> I am trying to achieve a thumbnail viewer where each item (i.e. thumbnail and its page number label) are of fixed size. I am trying to scale the images so that they maintain aspect ratio inside these items. However, most images appear somewhat cropped in both dimensions.</p> <p><a href="htt...
<python><pyqt><pyqt5><custom-widgets>
2024-05-09 11:29:41
2
654
MrVocabulary
78,454,039
11,198,558
What is the Django logic flow to show pdf inside HTML template after click the given link
<p>I'm using Django to create a website to public my post, all of my post is pdf.</p> <p>As usual, I defined my view and view logic, it returns a context dictionary</p> <pre><code>views.py class PageView(TemplateView): def get_context_data(self): context = super().get_context_data(**kwargs) highli...
<python><django>
2024-05-09 11:13:12
1
981
ShanN
78,453,755
7,435,104
Problem with python finding Qt platform plugin on NixOS (Sway)
<p>I have recently moved over to NixOS and I am having an issue with a python project I am starting. I have decided to move forward using Conda to handle my python environment based on the <a href="https://wiki.nixos.org/wiki/Python#Using_conda" rel="nofollow noreferrer">NixOS wiki</a>. I am running NixOS with Sway (wa...
<python><matplotlib><nixos><wayland>
2024-05-09 10:22:14
1
401
tlmoore
78,453,589
3,727,079
How can I check if the last row of a dataframe has timestamp between two times?
<p>Here's a one-row dataframe:</p> <pre><code>import pandas as pd import datetime df = pd.DataFrame(columns = ['time', 'score']) df.at[0, 'time'] = '2022-06-11 07:34:54.168327+00:00' df.at[0, 'score'] = 2793.7 df['time'] = pd.to_datetime(df['time']) </code></pre> <p>I want to check if the last row of this dataframe is...
<python><pandas><dataframe><datetime>
2024-05-09 09:49:31
1
399
Allure
78,453,559
5,378,816
Can exception. __traceback__ be None for an exception caught in try-except?
<p>Submitting this code (BTW, it prints <code>None</code>):</p> <pre><code>try: 1/0 except Exception as err: print(err.__traceback__.tb_next) </code></pre> <p>to mypy produces an error:</p> <pre><code># error: Item &quot;None&quot; of &quot;TracebackType | None&quot; has no attribute &quot;tb_next&quot; [union...
<python>
2024-05-09 09:43:06
1
17,998
VPfB
78,453,496
11,233,365
Get Azure Pipelines to install test environment from pyproject.toml instead of requirements_dev.txt
<p>As mentioned in the title, I'm hoping to get Azure Pipelines to be able to install its test environment from <code>pyproject.toml</code> instead of a separate <code>requirements_dev.txt</code> file, as it would help with reducing the number of dependencies lists that I'd have to maintain.</p> <p>From looking in the ...
<python><azure-pipelines><github-actions>
2024-05-09 09:30:32
1
301
TheEponymousProgrammer
78,453,483
6,221,742
Text-2-Sql using Llama3 locally
<p>I'm attempting to utilize the template provided in the Langchain repository for text-to-SQL retrieval using <a href="https://huggingface.co/QuantFactory/Meta-Llama-3-8B-GGUF" rel="nofollow noreferrer">Llama3</a>. Here's the link to the template: <a href="https://github.com/langchain-ai/langchain/tree/master/template...
<python><postgresql><langchain><large-language-model>
2024-05-09 09:27:57
0
339
AndCh
78,453,464
1,928,054
tox cannot find module
<p>I am trying to run tox on a module.</p> <p>Consider the following python package:</p> <pre><code>foo ├── tox.ini ├── setup.cfg │ tests │ └── test_bar.py └── src ├── data │ └── data.csv ├── __init__.py └── bar.py </code></pre> <p>Where <code>bar.py</code> has:</p> <pre><code>import importlib.res...
<python><tox><pyscaffold>
2024-05-09 09:25:12
0
503
BdB
78,453,450
7,640,923
Identifying and retrieving particular sequences of characters from within text fields containing Basic Data desc
<p>I have a list named MAT_DESC that contains material descriptions in a free-text format. Here are some sample values from the MAT_DESC column:</p> <pre><code>QWERTYUI PN-DR, Coarse, TR, 1-1/2 in, 50/Carton, 200 ea/Case, Dispenser Pack 2841 PC GREY AS/AF (20/CASE) CI-1A, up to 35 kV, Compact/Solid, Stranded, 10/Case...
<python><python-3.x><regex>
2024-05-09 09:21:12
1
315
rohi
78,453,435
2,164,904
matching numpy conditions row and column without iteration
<p>Given a dataframe <code>condition</code> defined as:</p> <pre><code>0 [3, 4] 1 [2] </code></pre> <p>I want another dataframe's 0th row, column 3 and 4 and 1th row, column 2 to be set to 0</p> <p>For example given another dataframe <code>df2</code>:</p> <pre><code> 1 2 3 4 0 0...
<python><pandas>
2024-05-09 09:18:15
4
1,385
John Tan
78,453,194
5,567,893
How to match the index of tensors and values in the list using pytorch?
<p>I'd like to match the index of tensors from the list. I'm trying to do link prediction using Pytorch. In this process, I need to convert the index to the name by mapping it to the dictionary. To do this, I set the dictionary and masking to the tensor, but it returned unexpected indices.</p> <pre class="lang-py prett...
<python><pytorch>
2024-05-09 08:27:49
1
466
Ssong
78,453,172
713,200
How to search for a attribute substring for a xpath when the attribute is not known?
<p>I have a xpath like</p> <pre><code>//*[name()='svg' and contains(@data-type,'CHASSIS')] </code></pre> <p>This will lead to below html</p> <pre><code>&lt;svg xmlns:dc=&quot;http://purl.org/dc/elements/1.1/&quot; xmlns:cc=&quot;http://creativecommons.org/ns#&quot; xmlns:rdf=&quot;http://www.w3.org/1999/02/22-rdf-synta...
<python><selenium-webdriver><xpath>
2024-05-09 08:23:21
0
950
mac
78,452,885
3,712,352
Multiply a pyspark column with array for each row
<p>I have a pyspark DataFrame with two columns. One is a float and another one is an array. I know that the length of the array in each row is the same length as the the number of rows. I want to create a new column in the DataFrame that for each row the result will be the dot product of the array and the column.</p> <...
<python><pyspark>
2024-05-09 07:15:47
2
1,838
AndreyF
78,452,871
984,621
Scrapy won't download images in the *.MPO format - PIL.UnidentifiedImageError: cannot identify image file
<p>When Scrapy spiders tries to download an image that is in the <strong>.mpo</strong> format, it results in this error:</p> <pre><code>PIL.UnidentifiedImageError: cannot identify image file &lt;_io.BytesIO object at 0x7ff1297bbec0&gt; </code></pre> <p>How do I make Scrapy/Pillow to process images with the <strong>.mpo...
<python><scrapy><python-imaging-library>
2024-05-09 07:12:57
0
48,763
user984621
78,452,863
13,942,929
Cython : How can we properly call add, sub, mul & divide operator?
<p>In .pxd file, I wrote</p> <pre><code> _Point operator+(const _Point other) const _Point operator -(const _Point other) const bool operator==(const _Point other) const </code></pre> <p>In .pyx file, I wrote</p> <pre><code>def __eq__(self, Point other): cdef _Point* selfptr = self.c_point.get() cdef...
<python><c++><cython><operator-keyword><cythonize>
2024-05-09 07:12:03
1
3,779
Punreach Rany
78,452,816
4,806,592
Why do I get TypeError: iteration over a 0-d array even though I am passing 1-d array?
<p>I have a dataframe (<code>new_df</code>) with below data:</p> <pre><code>Unnamed: 0 Words embedding 0 0 Elephant [-0.017855134320424067, -0.008739002273680945,... 1 1 Lion [-0.001514446088710819, -0.010011047775235734,... 2 2...
<python><python-3.x><pandas><dataframe><numpy>
2024-05-09 07:02:54
1
519
Karan
78,452,797
7,959,614
Create bimodal distribution from two uniform distribution using Numpy
<p>I am trying to reproduce the <code>bimodalSample</code> function of this <a href="https://blog.cyrusroshan.com/post/transforming-distributions" rel="nofollow noreferrer">blog</a> in Python.</p> <p>My attempt:</p> <pre><code>import numpy as np def bimodal_pdf(distance: float, weight: float) -&gt; np.ndarray: ...
<python><numpy>
2024-05-09 06:59:08
1
406
HJA24
78,452,640
3,179,698
In jupyter notebook, how to use venv to manage package?
<p>I am starting to use venv to manage my packages.</p> <p>Here I could use terminal to do it, but I want to do it in jupyter notebook, so that I could do the installation during my software dev work smoothly.</p> <p>However, when I created and activated my virtual env, it seems jupyter didn't confirm me in the virtual...
<python><jupyter-notebook><python-venv>
2024-05-09 06:25:11
1
1,504
cloudscomputes
78,452,624
1,609,428
how to use loc with a pipe in Pandas?
<p>Consider the following example</p> <pre><code>import numpy as np import pandas as pd data = { 'Group': ['A', 'B', 'C', 'D']*3, # Repeating groups to fill the DataFrame 'Timestamp': pd.date_range(start='2023-01-01', periods=12, freq='M'), # Monthly frequency 'Numeric': np.random.rand(12) * 100, # Rand...
<python><pandas>
2024-05-09 06:21:29
2
19,485
ℕʘʘḆḽḘ
78,452,601
1,744,357
Add SHA1 to signxml python
<p>I am using the library <a href="https://xml-security.github.io/signxml" rel="nofollow noreferrer">signxml</a> to sign XML signatures for SAML authentication. One of our implementer partners requires that we send the signature in SHA1. The base configuration of XMLSigner does not support SHA1 because it has been depr...
<python><xml><saml><sha1>
2024-05-09 06:16:11
1
571
rocket_boomerang_19
78,452,494
4,115,031
How do I debug a remote gunicorn Python web app using Jetbrains Gateway?
<h2>Background</h2> <p>I'm working as a programmer for a company that has a complicated setup of repos, so what they've done is set up an EC2 instance with all of the necessary repos and config, and I ssh into it to work on their Python (Flask) backend code. I've been using Jetbrains Gateway as my IDE (it runs an IDE i...
<python><pycharm><jetbrains-ide><ngrok><tunneling>
2024-05-09 05:45:10
1
12,570
Nathan Wailes
78,452,469
1,876,345
How to override the base resolver in pyyaml
<p>I have found several comments and a similar <a href="https://stackoverflow.com/a/42284826/1876345">question</a> on how to override the resolver. <a href="https://github.com/yaml/pyyaml/issues/376#issuecomment-576821252" rel="nofollow noreferrer">https://github.com/yaml/pyyaml/issues/376#issuecomment-576821252</a></p...
<python><python-3.x><yaml><pyyaml>
2024-05-09 05:35:14
2
974
Diego
78,452,384
3,099,733
Why doesn't Annotated[str, T] work while Annotated[T, str] works well?
<p>I have a project where user need to use <code>Annotated[str, MyType()]</code> a lot. In order to simplify it, I try to create a generic type</p> <pre class="lang-py prettyprint-override"><code>T = TypeVar('T') CustomUrl = Annotated[str, T] </code></pre> <p>But I get this error when I try to use it this way:</p> <pre...
<python><python-typing>
2024-05-09 05:07:17
1
1,959
link89
78,452,284
240,443
KeyboardInterrupt in asyncio.TaskGroup
<p>The docs on <a href="https://docs.python.org/3/library/asyncio-task.html#task-groups" rel="noreferrer">Task Groups</a> say:</p> <blockquote> <p>Two base exceptions are treated specially: If any task fails with <code>KeyboardInterrupt</code> or <code>SystemExit</code>, the task group still cancels the remaining tasks...
<python><python-3.x><exception><python-asyncio><keyboardinterrupt>
2024-05-09 04:31:54
2
199,494
Amadan
78,452,069
3,453,768
deepcopy fails with object that contains objects that contain sets that point to each other with __hash__
<p>This MWE builds a <code>Network</code> class and a <code>Node</code> class. A <code>Node</code> has attributes called <code>predecessors</code> and <code>successors</code>, each of which is a set that will contain other <code>Node</code>s. Functions in the two classes manage the structure of the network.</p> <pre cl...
<python><hash><set><deep-copy>
2024-05-09 03:09:00
0
2,397
LarrySnyder610
78,451,928
19,048,408
How do I configure Python "black" to sensibly format Polars?
<p>How do I configure Black to sensibly auto-format Python code for the Polars library?</p> <p>With the default settings, it likes to left-align <code>.select</code>/<code>.with_columns</code> calls with many arguments. I want the following code to not get mangled. Is there a standard configuration?</p> <pre class="lan...
<python><python-polars><python-black>
2024-05-09 02:20:08
0
468
HumpbackWhale194
78,451,861
2,457,160
Create new column based on multiple columns and some conditions
<p>I have a data frame with 2-level indexed columns (sample data below):</p> <pre><code> metric grp Avg P95 mean ci_low ci_up mean ci_low ci_up 0 a CONTROL 8.202862 8.100596 8.306985 17.1...
<python><pandas>
2024-05-09 01:54:27
1
3,378
SixSigma
78,451,714
10,789,207
Logging to Queue during multiprocessing fails
<p><strong>TL;DR: Why is there no handler listed for the logger at the (inside run) print statement in the console view?</strong></p> <p>Looking for explanation of why this logging scheme is not working properly.</p> <p>I'm following the recipe (pretty closely) for logging multiple processes to the same log file found...
<python><logging><python-multiprocessing>
2024-05-09 00:43:23
1
11,992
AirSquid
78,451,428
1,516,389
Python Accelerate package thrown error when using Trainer from Transformers
<p>I'm trying out this Hugging Face <a href="https://huggingface.co/learn/nlp-course/en/chapter3/3?fw=pt" rel="nofollow noreferrer">tutorial</a></p> <p>I'm trying to use a trainer to train my mode. The code errors out at this point:</p> <pre><code>from datasets import load_dataset from transformers import AutoTokenizer...
<python><huggingface-transformers>
2024-05-08 22:31:42
1
636
raka
78,451,346
268,581
Testing against local package before pushing update to PyPI
<p>Let's say I have a package <code>abc</code> that I've published to PyPI.</p> <p>I have other local projects that use <code>abc</code>. Of course, I'd like to be able to update <code>abc</code> locally and test against this version before pushing out to PyPI.</p> <p>Here's one approach I'm using:</p> <ul> <li>Make su...
<python><pypi><python-packaging>
2024-05-08 22:05:28
0
9,709
dharmatech
78,451,318
26,416
How to make Tk widgets flow from left to right and then top to bottom?
<p>I have to display dozens of radio buttons (grouped by three) in a frame and would like them to flow like text: from left to right and when the line is full, create a second line below.<br /> How would you do this?</p> <p>EDIT: after some nice comments I got this:</p> <pre class="lang-py prettyprint-override"><code>i...
<python><user-interface><tkinter>
2024-05-08 21:58:01
1
1,604
Gra
78,451,312
14,250,641
Reorder a stacked barplot in altair
<p>So I am making an interactive plot (which is why I'm using altair) and I want to reorder the stacks within each bar to match the legend. I've tried reodering the df, I've tried using the 'sort' parameter, but nothing works. Any suggestions would be extremely helpful!</p> <pre><code>color_scale = alt.Scale( domai...
<python><pandas><dataframe><plot><altair>
2024-05-08 21:56:13
1
514
youtube
78,451,289
20,898,396
Match type: Irrefutable pattern is allowed only for the last case statement
<p>I was trying to use the syntax <code>match</code> with a generic, but it wasn't working so I tried <code>match type()</code>.</p> <pre class="lang-py prettyprint-override"><code>from typing import Generic, TypeVar from pydantic import BaseModel class LetterList(BaseModel): letter: str class NumberList(BaseMode...
<python>
2024-05-08 21:47:31
0
927
BPDev
78,451,219
22,407,544
'The request signature we calculated does not match the signature you provided' in DigitalOcean Spaces
<p>My django app saves user-uploaded files to my s3 bucket in DigitalOcean Spaces(using django-storages[s3], which is based on amazon-s3) and the path to the file is saved in my database. However when I click the url in located in the database it leads me to a page with this error: <code>The request signature we calcul...
<python><django><amazon-s3><digital-ocean>
2024-05-08 21:26:48
1
359
tthheemmaannii
78,451,100
16,717,009
What is the type hint for a descriptor?
<p>This is a new question related to <a href="https://stackoverflow.com/questions/78450557">How can I pass a namedtuple attribute to a method without using a string?</a> . How would I type hint the <code>column</code> parameter in method <code>attempt_access</code>. It can be either an <code>int</code> or the attribute...
<python><python-typing>
2024-05-08 20:52:07
1
343
MikeP
78,451,024
2,662,302
Python Polars issue with lazy evaluation
<p>I have two dictionaries with keys string and values polars expresions.</p> <ul> <li>factor_query_dict</li> <li>currency_factor_query_dict</li> </ul> <p>And I'm doing this:</p> <pre class="lang-py prettyprint-override"><code>factor_holdings = holdings.lazy().with_columns( [ pl.coalesce( ...
<python><python-polars>
2024-05-08 20:29:57
0
505
rlartiga
78,450,904
10,319,707
Do either Python or AWS Glue provide an alternative to .NET's SqlBulkCopy?
<p>I am porting an old SSIS package to AWS Glue. The package runs daily. In several steps in this package, I take data from one table on one Microsoft SQL Server and copy all of it to an empty table of identical schema on another Microsoft SQL Server. I wish to replicate these steps in AWS Glue. This would be rather e...
<python><sql-server><aws-glue><bulkinsert><sqlbulkcopy>
2024-05-08 19:57:47
0
1,746
J. Mini
78,450,756
6,569,899
How to optimize a bulk query to redis in django - hiredis
<p>I am porting a rest/graphql api from a Java project to Django in Python. We are using redis in both. We have one endpoint that is rather large (returns several MB). In this endpoint we construct a key and if that key exists in redis we return that data and skip past the other logic in the endpoint. I have deployed t...
<python><django><redis><hiredis><django-redis>
2024-05-08 19:19:10
0
2,431
afriedman111
78,450,623
9,659,840
how to check if df column contains a map key and if contains, put the corresponding value in a new column in pyspark?
<p>&quot;I have a DataFrame with records stored in a particular column. I want to compare each record in that column against a predefined map. If a record contains any of the keys in the map, I want to populate a new column with the corresponding value associated with that key in the map.&quot;</p>
<python><pyspark><databricks>
2024-05-08 18:45:38
0
469
UC57
78,450,597
10,634,126
Creating a new DataFrame column from application of function to multiple columns in groupby
<p>I have a DataFrame of population counts by combination of categorical demographic features and date, with some missing values (consistent across all combos) per date constituting gaps in the data.</p> <p>I am attempting to:</p> <ol> <li>group by all demographic features</li> <li>apply a function to each time series ...
<python><pandas><dataframe><group-by>
2024-05-08 18:40:47
1
909
OJT
78,450,595
1,788,656
quiver wind arrows are too lengthy for scale=1 and does not match the key arrow
<p>All,</p> <p>The argument scale=1 of the matplotlib quiver (wind plot) function produces lengthy arrows extending beyond the figure limits. On the other hand, using scale=None seems to yield a logical arrow length. Any insights on this?</p> <p>Beside <code>print(ax_left.scale)</code>, which must print None, yields 12...
<python><matplotlib><ipython>
2024-05-08 18:38:37
1
725
Kernel
78,450,557
16,717,009
How can I pass a namedtuple attribute to a method without using a string?
<p>I'm trying to create a class to represent a list of named tuples and I'm having trouble with accessing elements by name. Here's an example:</p> <pre><code>from typing import NamedTuple class Record(NamedTuple): id: int name: str age: int class NamedTupleList: def __init__(self, data): se...
<python>
2024-05-08 18:30:51
1
343
MikeP
78,450,541
10,485,253
How do I get table data from a label object in sqlalchemy?
<p>Lets say I have the following simplified example:</p> <pre class="lang-py prettyprint-override"><code>from sqlalchemy.orm import DeclarativeBase, Mapped class TableA(DeclarativeBase): col_name = Mapped[str | None] parent_id = Mapped[int] class TableB(DeclarativeBase): col_name = Mapped[str | None] ...
<python><sqlalchemy>
2024-05-08 18:28:09
1
887
TreeWater
78,450,533
5,596,534
Multiple conditions for filters on partitioned columns with pandas read_parquet
<p>If I have a partitioned data and I was to filter using the <code>filters</code> argument in <code>pd.read_parquet</code> how can I accomplish that? For example:</p> <pre class="lang-py prettyprint-override"><code>import pandas as pd data = { &quot;ID&quot;: [1, 2, 3], &quot;Value&quot;: [&quot;A&quot;, &qu...
<python><pandas><parquet>
2024-05-08 18:26:21
1
4,426
boshek
78,450,478
2,475,195
Pandas rolling sum within a group
<p>I am trying to calculate a rolling sum or any other statistic (e.g. mean), within each group. Below I am giving an example where the window is 2 and the statistic is sum.</p> <pre><code>df = pd.DataFrame.from_dict({'class': ['a', 'b', 'b', 'c', 'c', 'c', 'b', 'a', 'b'], 'val': [1, 2, 3, 4, 5,...
<python><pandas><dataframe><group-by><rolling-computation>
2024-05-08 18:09:28
1
4,355
Baron Yugovich
78,450,469
4,862,402
Rendering jinja templated parameters before rendering sql query
<p>I have a DAG with multiple SQL tasks (and .sql files) referencing the same template variable called <code>refdate</code> (each file may reference this variable multiple times within the query code). Let's assume the sql file looks like this:</p> <pre><code>select '{{params.refdate}}'; </code></pre> <p>Now I want to ...
<python><sql><airflow><jinja2>
2024-05-08 18:07:29
0
1,161
Victor Mayrink
78,450,274
7,307,824
Multiple requests in Python with `asyncio`
<p>I'm trying to make a number of requests at the same time.</p> <p>I'm new to <code>async</code> and <code>await</code> in Python (I've used it in Js).</p> <p>I found an example and used this:</p> <pre class="lang-py prettyprint-override"><code>import asyncio import aiohttp async def get_item( session: aiohttp.Client...
<python><python-asyncio>
2024-05-08 17:25:43
2
568
Ewan
78,450,001
774,575
How to build a MultiIndex DataFrame from a dict of data and a dict of index levels
<p>I'm struggling with the creation of this <code>DataFrame</code></p> <pre><code> A B x y a 1 2 1 2 6 3 c 2 7 2 </code></pre> <p>from these two dictionaries which seem sufficient:</p> <pre><code>data = {'A': [2,6,7], 'B': [1,3,2]} index = {'x': ['a', 'a', 'c'], 'y': [1, 2, 2]} </co...
<python><pandas><multi-index>
2024-05-08 16:33:26
1
7,768
mins
78,449,946
741,850
Prevent asyncpg from processing output from postgres? (return raw data)
<p>I am trying to return raw data, as in string / bytes, from a postgresql query executed with asyncpg, without asyncpg parsing the output data into a Record/dict. In my case I use a cursor, but I think the question is general.</p> <p>Why?</p> <p>I am returning pre-processed json data, ready for an endpoint. I do not w...
<python><postgresql><asyncpg>
2024-05-08 16:24:59
1
12,944
Automatico
78,449,726
10,200,497
How can I increase each group by N percent than the previous group?
<p>First of all I'm not sure if it is the correct title. Feel free to suggest a better one.</p> <p>This is my DataFrame:</p> <pre><code>import pandas as pd df = pd.DataFrame( { 'a': [100, 100, 102, 102, 106, 106, 106, 107, 107, 107] } ) </code></pre> <p>And this is the expected output. I want to create ...
<python><pandas><dataframe>
2024-05-08 15:47:54
1
2,679
AmirX
78,449,599
15,370,142
pandas date column to unix timestamp accounting for timezone and varying datetime formats
<p>I have multiple data frames with a datetime column as a string. Datetime formats vary across columns in the dataframe or across dataframes. I want to get a unix timestamp that gets interpreted by an ArcGIS application into the local timezone.</p> <p>For example, one such dataframe is the following:</p> <pre class="l...
<python><pandas><datetime><timezone><unix-timestamp>
2024-05-08 15:24:28
2
412
Ted M.
78,449,590
3,123,109
"... && coverage report" not working after switching to pytest-django
<p>I was using <code>unittest</code> in Django to write tests and running the tests with this command:</p> <pre><code>coverage run --omit='src/manage.py,src/config/*,*/.venv/*,*/*__init__.py,*/tests.py,*/admin.py' src/manage.py test src &amp;&amp; coverage report </code></pre> <p>It'd run the tests then display the <co...
<python><django><pytest><coverage.py><pytest-django>
2024-05-08 15:24:09
1
9,304
cheslijones
78,449,573
1,451,649
In Bokeh, how can I update the color of lines when updating a multiline data source?
<p>I want to update a multi_line in a bokeh figure. As part of the updates, I need to adjust colors.</p> <p>First, I make a simple figure:</p> <pre><code>from bokeh.plotting import figure, show p = figure() # create a dummy multiline so that we can update it later with new data p.multi_line(xs=[[0,1]], ys=[[0,1]], nam...
<python><bokeh>
2024-05-08 15:20:32
1
3,741
jpobst
78,449,517
6,694,814
Python ValueError: I/O operation on closed file for loop range
<p>I have the following code:</p> <pre><code>def openFile(): filepath = filedialog.askopenfilename( title=&quot;Please select a file&quot;, filetypes = (('Excel files', '*.xlsx'), ('Excel macro ...
<python><tkinter><openpyxl>
2024-05-08 15:10:26
1
1,556
Geographos
78,449,510
9,466,142
Docker containers not able to communicate with each other on the same machine
<p>I have a docker compose file running 2 different services and i have launched a third container which is acting as a database for the first two containers. Third container is a vector db and when i am trying to communicate via the new instantiated docker container i am getting the below error:</p> <pre><code>File &q...
<python><docker><docker-compose><dockerfile><large-language-model>
2024-05-08 15:08:54
0
573
Rahul Anand
78,449,498
6,638,232
How to use the result of a previous if statement to a next if?
<p>I would like to use a while loop in Python for the following if statements. I dont know how to implement this correctly in python.</p> <pre><code> if t == 0: za = ds.isel(time=t) abc = get_grids_inside_rad(127.2, 15.7) print(abc) if t == 1: za = ds.isel(time=t) ghi = ge...
<python>
2024-05-08 15:07:01
2
423
Lyndz
78,449,471
8,205,554
How to most efficiently delete a tuple from a list of tuples based on the first element of the tuple in Python?
<p>I have a data structure as follows,</p> <pre class="lang-py prettyprint-override"><code>data = { '0_0': [('0_0', 0), ('0_1', 1), ('0_2', 2)], '0_1': [('0_0', 1), ('0_1', 0), ('0_2', 1)], '0_2': [('0_0', 2), ('0_1', 1), ('0_2', 0)], } </code></pre> <p>Each key of the dictionary is unique. The values corre...
<python>
2024-05-08 15:00:45
7
2,633
E. Zeytinci