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 ⌀ |
|---|---|---|---|---|---|---|---|---|
75,246,480 | 10,549,044 | Sample Weights procude contradictory results for binary classification with higher precision for less weighted class | <p>I am using sample_weights to give class 1 higher weight in the loss function, however, If I do so I find that class 0 is the one given higher precision and the model tends to classify most instances as class 1 (the one I given higher weight). I expected the model to pay more attention at the class 1 and it should be... | <python><tensorflow><keras><deep-learning> | 2023-01-26 13:01:22 | 0 | 410 | ma7555 |
75,246,436 | 1,465,726 | How to read files in parallel with tf.data.Dataset.from_generator? | <p>I have successfully created a TF dataset using <code>tf.data.Dataset.from_generator</code> that reads several binary files in sequence and converts them to strings. The code looks like this:</p>
<pre><code>my_dataset = tf.data.Dataset.from_generator(
lambda: _generate_data_points(fnames), tf.string)
... | <python><tensorflow><tensorflow-hub> | 2023-01-26 12:55:52 | 0 | 570 | niefpaarschoenen |
75,246,372 | 13,061,414 | How to save python ml model so that in can be run in C# Unity | <p>I have a python script that trains an ml model. I would like to then export this model so that it can be loaded and used in a Unity game written in C#.</p>
<p>I know I can't serialize the model using pickle or scikit-learn's joblib because they are not supported by C#. So is there any way to save the model so that i... | <python><c#><unity-game-engine><machine-learning> | 2023-01-26 12:50:23 | 1 | 375 | RishtarCode47 |
75,246,296 | 8,794,221 | Unittest strategy for a function performing an experiment that includes some randomness | <p>What approach should I take to write a unittest for this function?</p>
<p>Please note that:</p>
<ul>
<li>at each execution this function will generate different list of results for the same input parameters (with a very high probability).</li>
<li>the list might be empty at the end of the execution (if we have reach... | <python><unit-testing> | 2023-01-26 12:42:59 | 1 | 12,516 | Allan |
75,246,092 | 4,752,223 | How to have an ipywidgets.ToggleButtons with multiple buttons using the same label | <p>By default, all the <code>options</code> for the buttons must be unique.</p>
<pre><code>options=["label1","label2",...]
</code></pre>
<p>You can however provide a list of tuples like this</p>
<pre><code>options=[("label1",value1), ("label2",value2),]
</code></pre>
<p>And that ... | <python><ipywidgets> | 2023-01-26 12:24:37 | 1 | 2,928 | Rub |
75,246,007 | 7,800,760 | Github Actions: create a pull request after formatting code with psf/black | <p>In my github formatting workflow I have the following step:</p>
<pre><code>- name: Format with black
uses: psf/black@stable
id: action_black
with:
options: "--verbose"
src: "./src"
</code></pre>
<p>after which I have copied from another action template a step whi... | <python><github-actions> | 2023-01-26 12:15:35 | 1 | 1,231 | Robert Alexander |
75,245,944 | 2,038,360 | create stacked plot of percentages | <p>I have a dataframe containing the percentage of people in my dataset stratified per Gender and Age.</p>
<pre><code>df_test = pd.DataFrame(data=[['Male','16-24',10],
['Male','25-34',5],
['Male','35-44',2],
['Female','16-24',3],
... | <python><pandas><matplotlib><plot><seaborn> | 2023-01-26 12:09:14 | 1 | 5,589 | gabboshow |
75,245,922 | 11,999,452 | Manim: Is the a nice way to move and scale a bunch of mobjects? | <p>I'm using the manim module in Python to display some decision trees. Fist I want to show Tree_1 as it is in the code below. Then I want it to scale it down and shift it to the left. Next I want Tree_2 to appear where Tree_1 is and them move to the upper right quadrant of the screen. Also the <code>PURE_RED</code> li... | <python><manim> | 2023-01-26 12:07:52 | 1 | 400 | Akut Luna |
75,245,754 | 19,580,067 | Tried to update the database table values using python 'pyodbc'. But not working | <p>I just created a new table in the database with empty columns in varchar(max) datatype. Tried to update the column values using pyodbc but the changes are not getting reflected in the database table.</p>
<p>Any suggestions, what am I doing wrong here?</p>
<p>My Code:</p>
<pre><code>#Code to connect database with the... | <python><sql-server><ssms><pyodbc> | 2023-01-26 11:54:20 | 1 | 359 | Pravin |
75,245,751 | 5,431,734 | Why `conda update conda` updates a whole lot of other packages? | <p>I ran <code>conda update conda</code> and the prompt came back asking to download and update several other packages, like for example:</p>
<ul>
<li><code>pandas</code> from <code>1.4.3</code> to <code>1.5.3</code></li>
<li><code>numba</code> from <code>0.55.2</code> to <code>0.56.4</code></li>
<li><code>dask</code> ... | <python><anaconda><conda> | 2023-01-26 11:53:50 | 1 | 3,725 | Aenaon |
75,245,748 | 9,102,437 | Can't save a file in moviepy python | <p>I have seen a few questions about this here, but none of them solved the issue for me, so maybe my case is different in some way.</p>
<p>I am trying to achieve a simple result: read a file and write it. Here is the code:</p>
<pre class="lang-py prettyprint-override"><code>import os
os.environ['FFMPEG_BINARY'] = '/us... | <python><python-3.x><linux><ffmpeg><moviepy> | 2023-01-26 11:53:34 | 1 | 772 | user9102437 |
75,245,739 | 12,807,756 | python merge list of dicts into 1 based on common key | <p>I have this dict:</p>
<pre><code>data= [{'org_id': 'AGO-cbgo', 'ws_name': 'finops_enricher-nonprod', 'ws_id': 'ws-CTvV7QysPeY4Gt1Q', 'current_run': None}
{'org_id': 'AGO-cbgo', 'ws_name': 'finops_enricher-prod', 'ws_id': 'ws-s4inidN9aDxELE4a', 'current_run': None}
{'org_id': 'AGO-cbgo', 'ws_name': 'finops_enricher-p... | <python><python-3.x><list><dictionary> | 2023-01-26 11:52:28 | 2 | 759 | WorkoutBuddy |
75,245,691 | 11,622,712 | How to calculate an an accumulated value conditionally? | <p>This question is based on <a href="https://stackoverflow.com/questions/75240753/how-to-calculate-an-an-accumulated-value-conditionally">this thread</a>.</p>
<p>I have the following dataframe:</p>
<pre><code>diff_hours stage sensor
0 0 20
0 0 21
0 0 21
1 ... | <python><pandas> | 2023-01-26 11:47:59 | 1 | 2,998 | Fluxy |
75,245,387 | 9,182,743 | for each day, count unique users for day and day-1, grouped by third column | <p>I have a dataset of:</p>
<ul>
<li><strong>day</strong> -> the day as integer the user did an action (eg. day = 1)</li>
<li><strong>user_id</strong> -> unique id identifying each user. (eg. user_id = 'a'</li>
<li><strong>actions</strong> -> type of action take (eg. action = 1)</li>
</ul>
<p><strong>Objective... | <python><pandas> | 2023-01-26 11:18:17 | 1 | 1,168 | Leo |
75,245,222 | 20,311,786 | Why aren't two `zip` objects equal if the underlying data is equal? | <p>Suppose we create two <code>zip</code>s from lists and tuples, and compare them, like so:</p>
<pre><code>>>> x1=[1,2,3]
>>> y1=[4,5,6]
>>> x2=(1,2,3)
>>> y2=(4,5,6)
>>> w1=zip(x1,y1)
>>> w2=zip(x2,y2)
>>> w1 == w2
False
</code></pre>
<p>But using <code>l... | <python><python-zip> | 2023-01-26 11:00:38 | 1 | 646 | newview |
75,245,104 | 1,436,800 | How to raise 404 as a status code in Serializer Validate function in DRF? | <p>I have written a validate() function inside my serializer. By default, Serializer Errors return 400 as a status code. But I want to return 404. I tried this:</p>
<pre><code>class MySerializer(serializers.ModelSerializer):
class Meta:
model = models.MyClass
fields = "__all__"
def va... | <python><django><django-rest-framework><django-serializer><django-validation> | 2023-01-26 10:49:24 | 2 | 315 | Waleed Farrukh |
75,245,079 | 4,505,301 | Python concurrent futures large number of inputs sit idle | <p>I am processing large number of files (tens of millions) using Python's concurrent.futures.
Issuing a small number of inputs work fine, however when the input size increases, the processes just don't start.
Below code executes only when input size is small, e.g. 20_000.</p>
<pre><code>import concurrent
import math
... | <python><python-3.x><multiprocessing><concurrent.futures> | 2023-01-26 10:46:42 | 1 | 1,562 | meliksahturker |
75,244,704 | 9,872,147 | Python reshape list that has no exact square root | <p>I'm trying to reshape a numpy array with a length of 155369 using <code>numpy.reshape</code> but since 155369 has no exact square root we round it down and the reshape function gives an error <code>ValueError: cannot reshape array of size 155369 into shape (394, 394)</code></p>
<pre class="lang-py prettyprint-overri... | <python><numpy> | 2023-01-26 10:10:51 | 1 | 342 | Dimo Dimchev |
75,244,698 | 2,411,173 | postgres query for overlapping integer time intervals | <p>I have a postgres table of the form</p>
<pre><code>from_secs, to_secs, value
10 20 1
12 50 2
....
</code></pre>
<p>now at query time I get a list of time intervals <code>[(from_secs1, to_secs1), (from_secs2, to_secs2), ...]</code> and I need to get all the v... | <python><postgresql> | 2023-01-26 10:10:26 | 1 | 17,747 | Donbeo |
75,244,664 | 11,240,107 | How to close session after stopping script with Selenium Remote Webdriver? | <p>I have a script where I use <code>selenium</code> with the remote webdriver in order to use my personal endpoint rather than Chrome or Firefox.</p>
<p>My problem is that when I quit my script with Ctrl + C while it's running, the <code>selenium</code> session is not closed automatically but continues to live until t... | <python><selenium><selenium-webdriver> | 2023-01-26 10:07:17 | 0 | 485 | Takamura |
75,244,633 | 8,547,163 | Run matlab code through subprocess module in python | <p>I have a matlab code which I would like to call and execute via <code>subprocess</code> in my python
code. To run the matlab code via the terminal I have</p>
<p><code>matlab2021a -nodesktop -r "addpath('path/to/dependencies'); matlab_file 1 1 0.5, exit"</code></p>
<p>To replicate the same in my python scri... | <python><matlab><subprocess> | 2023-01-26 10:05:00 | 0 | 559 | newstudent |
75,244,611 | 6,734,243 | Is there a way to check if a path is absolute in jinja2? | <p>In the pydata-sphinx-theme we need to check if a path is absolute or not before adding it to the template. Currently we use the following:</p>
<pre><code>{% set image_light = image_light if image_light.startswith("http") else pathto('_static/' + image_light, 1) %}
</code></pre>
<p>It's working but fails to... | <python><jinja2><python-sphinx> | 2023-01-26 10:02:22 | 2 | 2,670 | Pierrick Rambaud |
75,244,607 | 660,311 | VRP example in the docs gives different output when I run it | <p>On <a href="https://developers.google.com/optimization/routing/vrp" rel="nofollow noreferrer">https://developers.google.com/optimization/routing/vrp</a>, it says:</p>
<blockquote>
<p>The complete programs are shown in the next section. When you run the programs, they display the following output:</p>
<p>Route for ve... | <python><or-tools> | 2023-01-26 10:01:37 | 1 | 7,798 | Spycho |
75,244,542 | 1,684,315 | Python Basemap pcolormesh valueError | <p>I want to use Python <a href="/questions/tagged/basemap" class="post-tag" title="show questions tagged 'basemap'" aria-label="show questions tagged 'basemap'" rel="tag" aria-labelledby="basemap-container">basemap</a> and map an aggregated value of income in various cities. I have created a dictionary... | <python><matplotlib-basemap> | 2023-01-26 09:55:24 | 1 | 1,044 | Andi Maier |
75,244,528 | 4,616,326 | How to sum over column in pandas dropping value of a given category if values of another are present? | <p>I downloaded food production data from <a href="https://www.fao.org/home/en" rel="nofollow noreferrer">FAOSTAT</a>.
For a given year, production data for a certain foodstuff may be provided as an official value, an estimate or it may be of another category. However, the production values are all given in one column ... | <python><pandas> | 2023-01-26 09:53:46 | 1 | 705 | Dahlai |
75,244,523 | 8,771,201 | Python compare images of, piece of, clothing (identification) | <p>As an example I have two pictures with a particular type of clothing of a certain brand.
I can download a lot of different images of this same piece, and color, of clothing</p>
<p><a href="https://i.sstatic.net/6AoUC.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/6AoUC.jpg" alt="enter image descripti... | <python><machine-learning><artificial-intelligence> | 2023-01-26 09:53:21 | 3 | 1,191 | hacking_mike |
75,244,441 | 12,061,197 | How give a possible value range and a possible value out of that range to a variable | <p>I'm using <code>CP-SAT</code> model of google <code>OR Tools</code> with python. and I need to add a constraint as below,
<code>x</code> must be in the range of <code>10</code> and <code>100</code>. Otherwise, it must be zero.
How can I add such a constraint to the model?</p>
| <python><or-tools> | 2023-01-26 09:44:55 | 1 | 326 | Prasad Darshana |
75,244,437 | 11,479,825 | Group by several columns and add values from last column to list | <p>I have this table:</p>
<div class="s-table-container">
<table class="s-table">
<thead>
<tr>
<th>id</th>
<th>type</th>
<th>text</th>
</tr>
</thead>
<tbody>
<tr>
<td>1</td>
<td>inv_num</td>
<td>123</td>
</tr>
<tr>
<td>1</td>
<td>company</td>
<td>ASD</td>
</tr>
<tr>
<td>1</td>
<td>item</td>
<td>fruit</td>
</tr>
<tr>
<t... | <python><pandas> | 2023-01-26 09:44:37 | 1 | 985 | Yana |
75,244,419 | 10,596,488 | AWS ECS environment variable not available [Python] | <p>I am using AWS ECS with a Python Framework and in my task definition i have the option to add environment variables that will be available to the service(cluster).</p>
<p>Here is where i added the env variables:
<a href="https://i.sstatic.net/8cWRS.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/8cWRS... | <python><amazon-web-services><docker><environment-variables><amazon-ecs> | 2023-01-26 09:42:59 | 1 | 353 | Ali Durrani |
75,244,379 | 8,739,916 | Python Pandas reading CSV issue | <p>I am trying to read an unstructured CSV file without any header, using Pandas. The number of columns differ in different rows and there is no clear upper limit for the num of columns. Right now it is 10 but it will increase to maybe 15.</p>
<p>Example CSV file content:</p>
<pre><code>a;b;c
a;b;c;d;e;;;f
a;;
a;b;c;d;... | <python><pandas><csv> | 2023-01-26 09:38:35 | 1 | 867 | JollyRoger |
75,244,361 | 12,242,625 | Count preceding and following rows >=10 | <p>I have a spectrum and would like to identify the different channels. The channels can be distinguished from the edges between the channels by the level (<code>val</code>).</p>
<p>I have created a simplified table that contains the column <code>val</code>. Now I want to calculate how many rows before and after contai... | <python><pandas> | 2023-01-26 09:37:30 | 2 | 3,304 | Marco_CH |
75,244,276 | 11,261,546 | Import and import as in boost::python | <p>I'm working on a project that has most of it's code in C++ and some in python.</p>
<p>Is there a way to call <code>import xxx</code> and/or <code>import xxx as x</code> from C++?</p>
<p>I would expect something like this:</p>
<pre><code>auto other_mod = boost::python::import("the_other_module");
BOOST_PYT... | <python><c++><boost><bind> | 2023-01-26 09:30:16 | 1 | 1,551 | Ivan |
75,244,142 | 221,270 | Pandas replace value with other column value | <p>I have a table and I want to replace column values with other columns values based on a condition:</p>
<p>Table:</p>
<div class="s-table-container">
<table class="s-table">
<thead>
<tr>
<th>A</th>
<th>B</th>
<th>C</th>
<th>D</th>
<th>E</th>
</tr>
</thead>
<tbody>
<tr>
<td>x</td>
<td>1</td>
<td>test</td>
<td>fool</td... | <python><pandas> | 2023-01-26 09:13:53 | 1 | 2,520 | honeymoon |
75,243,901 | 3,922,727 | Python converting cURL into POST request is returning an error of 414 | <p>I am trying to convert a cURL request into a python POST request.</p>
<p>Here is the cURL:</p>
<pre><code>curl -X POST -F xls_file=@/path/to/form.xls https://api.ona.io/api/v1/forms
</code></pre>
<p>And here is the python script that I've been working on:</p>
<pre><code>with open(param_build_dir+'panther_test.xls', ... | <python><curl><python-requests> | 2023-01-26 08:50:43 | 1 | 5,012 | alim1990 |
75,243,888 | 19,642,884 | Problem serving Django "polls" tutorial under lighttpd: 404 page not found | <p>I am following the Django polls tutorial, which is working 100% with the built-in development server (<code>python3 manage.py runserver</code>).</p>
<p>I have set up lighttpd to serve django through UWSGI and that seems to be working fine but for one glitch: the URL passed to django seems to have been modified.</p>
... | <python><django><uwsgi><lighttpd> | 2023-01-26 08:49:27 | 1 | 4,512 | Henrique Bucher |
75,243,582 | 15,913,281 | Sorting Pandas Dataframe Based on Date/Time | <p>I have a dataframe created using an Access table. The Date column is formatted as an object and has the following syntax:</p>
<p>2019-12-31 12:55:00</p>
<p>I want to sort the dataframe on ascending date order so converted the column to datetime using:</p>
<pre><code>df['Date'] = pd.to_datetime(df['Date'])
</code></p... | <python><pandas> | 2023-01-26 08:18:46 | 0 | 471 | Robsmith |
75,243,418 | 6,089,166 | Keras, predict which player is the strongest (instead of player1 will win?) | <p>Hello I have a dataset that lets me know if player 1 has won:</p>
<pre><code>BMI, Temperature, Weight, Player1Win
33.6,17,50.0
26.6,19,31.0
23.3,16,32.1
28.1,20,21.0
43.1,17,33.1
</code></pre>
<p>I can correctly predict if player 1 will win their game with my model:</p>
<pre><code>import pandas as pd
from tensorflow... | <python><keras> | 2023-01-26 07:56:30 | 1 | 389 | sazearte |
75,243,301 | 5,618,856 | How to run a jupyter notebook cell in VS code with command line arguments (staying in the notebook context) | <p>Is there a way running a jupyter notebook python cell with command line parameters retaining the whole variable visibility of a notebook?</p>
<p>What I tried:</p>
<ul>
<li>According to <a href="https://stackoverflow.com/questions/37534440/passing-command-line-arguments-to-argv-in-jupyter-ipython-notebook?answertab=m... | <python><jupyter-notebook> | 2023-01-26 07:43:52 | 0 | 603 | Fred |
75,243,277 | 458,060 | Read a file and generate a list of lists using list comprehensions | <p>I'd like to read a file with the following input:</p>
<pre><code>10
20
30
50
60
70
80
90
100
</code></pre>
<p>and generate the following output:</p>
<pre><code>[['10', '20', '30'], ['50','60','70'] ... ]
</code></pre>
<p>using list comprehensions and not foor loops. Naturally the problem I'm facing is creating the... | <python><list-comprehension> | 2023-01-26 07:41:00 | 1 | 14,293 | George Katsanos |
75,243,224 | 16,971,617 | checking elements is in a set in numpy | <p>I am new to numpy so any help is appreciated. But I am curious how array handles set in python.</p>
<p>This is my code but it doesn't work as expected.
I am trying to filter elements that are not in my set.</p>
<pre><code>new_mask = np.where(np.isin(mask, my_set), 1, 0)
</code></pre>
<p>Because for my understanding,... | <python><numpy> | 2023-01-26 07:34:17 | 0 | 539 | user16971617 |
75,243,117 | 10,660,847 | Dataplex API Tag Policies | <p>I'm on exploration Dataplex API with Python in Google Documentation, there is documentation to Get Lake, Zone, Assets, etc. I've explored that documentation, but I didn't find any documentation related to Tag Policies, for example, I need to attach my Tag Template and add Policy Tag to my BigQuery Table via API.</p>... | <python><google-cloud-platform><google-data-catalog><google-dataplex> | 2023-01-26 07:20:13 | 2 | 1,793 | MADFROST |
75,243,102 | 3,764,619 | Pytest fixture for `airflow.operators.python.get_current_context` fails with `airflow.exceptions.AirflowException` | <p>I am trying to mock <code>airflow.operators.python.get_current_context</code> as follows:</p>
<pre><code>@pytest.fixture
def _mock_get_current_context(mocker):
mocker.patch(
"airflow.operators.python.get_current_context",
return_value={},
)
</code></pre>
<p>This pattern works for al... | <python><mocking><airflow><pytest><fixtures> | 2023-01-26 07:17:54 | 1 | 680 | Casper Lindberg |
75,243,027 | 17,275,588 | How to search strings in Python using a wildcard that represents only a single word -- and not multiple words as well? | <p>fnmatch is pretty simple in Python -- however it will output "True" whether there is 1, or 100 words, between the words you've put the wildcard between.</p>
<p>I'd like to be more narrow than this -- and be able to use some kind of wildcard searching library that let's me specify HOW MANY words I want to b... | <python><string><search><substring><wildcard> | 2023-01-26 07:08:02 | 1 | 389 | king_anton |
75,242,731 | 5,052,365 | is there a C# equivalent for Python's self-documenting expressions in f-strings? | <p>Since Python 3.8 it is possible to use <a href="https://docs.python.org/3/whatsnew/3.8.html#f-strings-support-for-self-documenting-expressions-and-debugging" rel="nofollow noreferrer">self-documenting expressions in f-strings</a> like this:</p>
<pre><code>>>> variable=5
>>> print(f'{variable=}')
va... | <python><c#><string-interpolation> | 2023-01-26 06:10:14 | 2 | 13,481 | Adam.Er8 |
75,242,603 | 16,971,617 | Skipping 0 when doing frequency count | <p>This line of code does the frequency count of my image which is 2D numpy array. But I would like to ignore 0, is there a simple way to skip it?</p>
<pre class="lang-py prettyprint-override"><code>freq_count = dict(zip(*np.unique(img_arr.ravel(), return_counts=True)))
for i in freq_count.keys():
# Do something
</co... | <python><numpy> | 2023-01-26 05:45:27 | 1 | 539 | user16971617 |
75,242,539 | 17,696,880 | Set a regex pattern to identify a repeating pattern of an enumeration, where the same match is repeated an unknown number of successive times | <pre class="lang-py prettyprint-override"><code>import re
input_text = "hjshhshs el principal, amplio, de gran importancia, y más costoso hotel de la zona costera. Es una sobrilla roja, bastante amplia y incluso cómoda de llevar. Hay autos rápidos, más costosos, y veloces. también, hay otro tipo de autos menos co... | <python><python-3.x><regex><regex-group><regexp-replace> | 2023-01-26 05:32:09 | 1 | 875 | Matt095 |
75,242,488 | 19,980,284 | Pandas find overlapping time intervals in one column based on same date in another column for different rows | <p>I have data that looks like this:</p>
<pre class="lang-py prettyprint-override"><code> id Date Time assigned_pat_loc prior_pat_loc Activity
0 45546325 2/7/2011 4:29:38 EIAB^EIAB^6 NaN Admission
1 45546325 2/7/2011 5:18:22 8W^W844^A ... | <python><pandas><dataframe><datetime> | 2023-01-26 05:21:39 | 1 | 671 | hulio_entredas |
75,242,450 | 3,728,901 | conda update conda: Collecting package metadata (current_repodata.json): failed | <p>Windows 11 x64, CMD</p>
<pre><code>Microsoft Windows [Version 10.0.22621.1105]
(c) Microsoft Corporation. All rights reserved.
C:\Users\donhu>conda update conda
Collecting package metadata (current_repodata.json): failed
CondaSSLError: OpenSSL appears to be unavailable on this machine. OpenSSL is required to
do... | <python><anaconda> | 2023-01-26 05:11:57 | 1 | 53,313 | Vy Do |
75,242,307 | 19,980,284 | Remove everything after second caret regex and apply to pandas dataframe column | <p>I have a dataframe with a column that looks like this:</p>
<pre><code>0 EIAB^EIAB^6
1 8W^W844^A
2 8W^W844^A
3 8W^W858^A
4 8W^W844^A
...
826136 EIAB^EIAB^6
826137 SICU^6124^A
826138 SICU^6124^A
826139 SICU^6128^A
826140 SICU^6128^A
</cod... | <python><pandas><regex> | 2023-01-26 04:39:34 | 2 | 671 | hulio_entredas |
75,242,212 | 10,487,667 | Python how to open a csv file for reading that was modified in the same program? | <p>I have a <code>.csv</code> file with headers.</p>
<p>I am trying to delete the header row and then open the same file for reading.</p>
<p>But the first line read is still the header line.
How to I delete the header line and start reading from the first line of data?</p>
<p><strong>Code snippet -</strong></p>
<pre><c... | <python><python-3.x> | 2023-01-26 04:16:56 | 1 | 567 | Ira |
75,242,186 | 7,190,950 | Python Selenium .value_of_css_property("background-color") returns black (0.0,0.0,0.0) for all tags | <p>I use selenium in my python code to loop through all elements in html page and retrieve their text color and background-color with <strong>element.value_of_css_property("color")</strong> and <strong>element.value_of_css_property("background-color")</strong> functions. It properly returns me the t... | <python><selenium><selenium-webdriver> | 2023-01-26 04:11:05 | 0 | 421 | Arman Avetisyan |
75,242,160 | 3,564,318 | Create a dictionary of all unique keys in a column and store correlation co-efficients of other columns as associated values | <p>There is a dataset with three columns:</p>
<ul>
<li>Col 1 : Name_of_Village</li>
<li>Col 2: Average_monthly_savings</li>
<li>Col 3: networth_in_dollars</li>
</ul>
<p>So, I want to create a dictionary "Vill_corr" where the <strong>key values</strong> are the name of the villages and the associated values ar... | <python><pandas><correlation> | 2023-01-26 04:04:02 | 1 | 1,716 | Pragyaditya Das |
75,242,071 | 5,800,086 | No FileSystem for scheme "gs" Google Storage Connector in plain PySpark installation | <p>I have already looked at several similar questions - <a href="https://stackoverflow.com/questions/27782844/no-filesystem-for-scheme-gs-when-running-spark-job-locally">here</a>, <a href="https://stackoverflow.com/questions/55595263/how-to-fix-no-filesystem-for-scheme-gs-in-pyspark">here</a> and some other blog posts ... | <python><apache-spark><pyspark><google-cloud-storage> | 2023-01-26 03:35:50 | 1 | 407 | kpython |
75,242,037 | 8,076,768 | Failed to import transformers.onnx.config | <blockquote>
<p>Failed to import transformers.onnx.config due to DLL load failed while
importing _imaging: The specified module could not be found.</p>
</blockquote>
<p><a href="https://i.sstatic.net/RUl2h.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/RUl2h.png" alt="enter image description here" /></a... | <python><dll><sentence-transformers> | 2023-01-26 03:27:21 | 0 | 343 | SaNa |
75,242,002 | 2,975,438 | How to read and process a file in Python that is too big for memory? | <p>I have csv file that looks like:</p>
<pre><code>1,2,0.2
1,3,0.4
2,1,0.5
2,3,0.8
3,1,0.1
3,2,0.6
</code></pre>
<p>First column correspond to <code>user_a</code>, second to <code>user_b</code> and third correspond to <code>score</code>. I want to find for every <code>user_a</code>, a <code>user_b</code> value that max... | <python> | 2023-01-26 03:19:51 | 2 | 1,298 | illuminato |
75,241,909 | 5,942,779 | Parse unix time with pd.to_datetime and datetime.datetime.fromtimestamp | <p>I am trying to parse a Unix timestamp using <code>pd.to_datetime()</code> vs. <code>dt.datetime.fromtimestamp()</code>, but their outputs are different. Which one is correct?</p>
<pre><code>import datetime as dt
import pandas as pd
ts = 1674853200000
print(pd.to_datetime(ts, unit='ms'))
print(dt.datetime.fromtimest... | <python><pandas><datetime><timestamp> | 2023-01-26 02:55:07 | 2 | 689 | Scoodood |
75,241,692 | 19,950,360 | plotly dash layout update | <pre><code>app = Dash(__name__)
app.layout = html.Div([
dcc.Location(id='url', refresh=False)
html.Div(id='page-content')
])
@app.callback(
Output('page-content', 'children'),
Input('url', 'search')
)
def url_check(search):
project_key = re.search('project_key=(\w+)&', search).group(1)
if... | <python><plotly><plotly-dash> | 2023-01-26 02:04:11 | 1 | 315 | lima |
75,241,650 | 5,513,336 | Using Pandas in Python: Splitting one column into three with possible blanks? | <p>Right now, I'm working with a csv file in which there is one column with a string.</p>
<p>This file is 'animals.csv'.</p>
<pre><code>Row,Animal
1,big green cat
2,small lizard
3,gigantic blue bunny
</code></pre>
<p>The strings are either two or three elements long.</p>
<p>I'm practicing using pandas, with the <code>e... | <python><pandas><string><csv><split> | 2023-01-26 01:54:17 | 0 | 2,124 | Leia_Organa |
75,241,599 | 18,183,907 | how to save multi level dict per line? | <p>i have this dict</p>
<pre><code>dd = {
"A": {"a": {"1": "b", "2": "f"}, "z": ["z", "q"]},
"B": {"b": {"1": "c", "2": "g"}, "z": ["x", "... | <python><json> | 2023-01-26 01:40:15 | 2 | 487 | yvgwxgtyowvaiqndwo |
75,241,502 | 13,860,719 | How to connect two line segments without changing their directions in matplotlib? | <p>Say I have two line segments with different slopes, one has <code>x</code> ranging from -0.5 to -0.1, the other has <code>x</code> ranging from 0 to 0.5. I want to use matplotlib to plot the two line segments into one line by connecting the two line segments. This is my current code</p>
<pre><code>import numpy as np... | <python><python-3.x><numpy><matplotlib><plot> | 2023-01-26 01:16:36 | 1 | 2,963 | Shaun Han |
75,241,494 | 363,843 | Nesting Django QuerySets | <p>Is there a way to create a queryset that operates on a nested queryset?</p>
<p>The simplest example I can think of to explain what I'm trying to accomplish is by demonstration.</p>
<p>I would like to write code something like</p>
<pre><code>SensorReading.objects.filter(reading=1).objects.filter(meter=1)
</code></pre... | <python><django><django-orm> | 2023-01-26 01:14:42 | 1 | 374 | Bjorn Harpe |
75,241,484 | 2,313,307 | Pandas: how to filter rows of a column to get alternating signs between every two consecutive cells? | <p>I have a data frame that looks like this</p>
<pre><code>df = pd.DataFrame({"a":[-0.1, -0.2, 0.2, -0.1, 0.1, 0.5, 0.6]})
df
a
0 -0.1
1 -0.2
2 0.2
3 -0.1
4 0.1
5 0.5
6 0.6
</code></pre>
<p>I would like to filter the rows of column <code>a</code> such that the signs of two consecutive cells ... | <python><pandas><lambda><group-by> | 2023-01-26 01:12:36 | 1 | 1,419 | finstats |
75,241,470 | 9,386,819 | Is there an easy way to see the earliest version of pandas that a particular function appeared in? | <p>I recently ran into an issue with calling <code>sns.scatterplot</code> where the seaborn version loaded into the backend of the platform I was using was too old. I discovered through a post here on stackoverflow that the function wasn't introduced until v.x.y.</p>
<p>Is there a standard way to see a particular funct... | <python><pandas><documentation> | 2023-01-26 01:08:31 | 0 | 414 | NaiveBae |
75,241,437 | 1,729,591 | How can I execute multiple Selenium files written in Python asynchronously or in parallel | <p>I have looked online and in Stack Overflow but cannot find a solution to my problem.</p>
<p>I need to execute multiple files written in Python using Selenium. I'd like to do this asynchronously or in parallel. Please note that my files are not necessarily tests.</p>
<p>Ideally I'd like to accomplish the following:</... | <python><selenium> | 2023-01-26 00:59:11 | 0 | 541 | Freddy |
75,241,431 | 3,943,868 | Should I use bracket or parenthesis in creating numpy array? | <p>For example, these two syntaxes seems to be same:</p>
<pre><code>In [3]: np.random.random((3,2))
Out[3]:
array([[0.12612127, 0.81236009],
[0.12289859, 0.89502736],
[0.70360669, 0.51271339]])
In [4]: np.random.random([3,2])
Out[4]:
array([[0.94723024, 0.55169203],
[0.48919411, 0.22082705],
... | <python><numpy> | 2023-01-26 00:58:03 | 0 | 7,909 | marlon |
75,241,204 | 6,050,364 | Why Onnxruntime runs 2-3x slower in C++ than Python? | <p>I have a code that runs 3 inference sessions one after the other. The problem that I am having is that it only runs at top performance in my Mac and the Windows VM (VMWare) that runs in my Mac. It takes between 58-68s to run my test set.</p>
<p>When I ask someone else using windows (with similar hardware: Intel i7 6... | <python><c++><opencv><onnx><onnxruntime> | 2023-01-26 00:14:58 | 1 | 2,687 | Adriel Jr |
75,241,193 | 12,224,591 | Accessing Contents of "System.Reflection.Pointer"? (Python 3.10) | <p>I'm calling a set of C# functions from a Python 3.10 script via the <code>clr</code> module from the <code>PythonNet</code> library. One of those functions returns a pointer of type <code>System.Reflection.Pointer</code>, that points to an array of <code>float</code> values.</p>
<p>I'm quite a bit confused as to how... | <python><pointers><python.net> | 2023-01-26 00:13:05 | 1 | 705 | Runsva |
75,241,185 | 2,179,970 | Why does Python logging throw an error when a handler name starts with `s`? | <h2>The Problem</h2>
<p>When I run <code>main.py</code> below, it prints out <code>HELLO WORLD</code> (everything works). However, if I rename <code>console</code> in <code>LOGGING_CONFIG</code> to <code>s</code>, python throws this error: <code>AttributeError: 'ConvertingDict' object has no attribute 'handle'</code>. ... | <python><python-3.x><logging><python-logging> | 2023-01-26 00:12:33 | 2 | 1,566 | Zion |
75,241,163 | 6,552,836 | Apply a function to dataframe which includes previous row data | <p>I have an input dataframe for daily fruit spend which looks like this:</p>
<p><code>spend_df</code></p>
<pre class="lang-none prettyprint-override"><code>Date Apples Pears Grapes
01/01/22 10 47 0
02/01/22 0 22 3
03/01/22 11 0 3... | <python><pandas><dataframe><apply><data-wrangling> | 2023-01-26 00:09:26 | 2 | 439 | star_it8293 |
75,241,115 | 13,494,917 | to dataframe from a CSV file with multiple delimiters | <p>I'm trying to create a pandas dataframe from a CSV that has multiple delimiters. The delimiter for the header(column names) of the CSV is a comma, the rest of the rows are TAB-delimited.</p>
<p>I've tried doing things like this:</p>
<pre class="lang-py prettyprint-override"><code>df = pd.read_csv('csvfile.csv', name... | <python><pandas><dataframe><csv> | 2023-01-26 00:00:22 | 1 | 687 | BlakeB9 |
75,241,086 | 14,514,276 | Appending pandas dataframes in for loop | <p>The problem with the code below is that <code>df</code> is not appended by new DataFrame. When I <code>print</code> the shape it is still <code>(1,6)</code>. How can I fix it?</p>
<pre><code>columns = ['name', 'precision', 'recall', 'gmean', 'f1', 'mse']
df_SMOTE = pd.DataFrame(columns=columns )
df_ENN = pd.DataFram... | <python><pandas><dataframe> | 2023-01-25 23:53:26 | 1 | 693 | some nooby questions |
75,241,084 | 17,274,113 | WinError 2: The system cannot find the file specified: (Cannot set explicit path to .exe file) | <p>I am attempting to use the package WhiteboxTools. I have installed it to my python environment and imported it to my Jupyter notebook script. The whitebox documentation suggests explicitly setting the path to the executable file if it is not in the same folder as the script being written with the following:</p>
<pre... | <python><exe><executable> | 2023-01-25 23:53:07 | 0 | 429 | Max Duso |
75,241,034 | 6,060,841 | How to make uploading multiple files with Webdav faster? | <p>Currently, I am developing a script that involves uploading using <a href="https://en.wikipedia.org/wiki/WebDAV" rel="nofollow noreferrer">WebDAV</a>. I am able to make (empty) directories and upload files fine. However, I have not been able to find a way to upload an entire directory or multiple files at once.</p>
... | <python><performance><upload><webdav><multiple-file-upload> | 2023-01-25 23:43:45 | 1 | 997 | Maximilian Ballard |
75,240,766 | 1,816,745 | Problem converting an image for a 3-color e-ink display | <p>I am trying to process an image file into something that can be displayed on a Black/White/Red e-ink display, but I am running into a problem with the output resolution.</p>
<p>Based on the example code for the display, it expects two arrays of bytes (one for Black/White, one for Red), each 15,000 bytes. The resolut... | <python><image-processing><esp32><dithering><e-ink> | 2023-01-25 22:57:21 | 2 | 1,000 | Mike Buss |
75,240,753 | 11,622,712 | How to calculate an an accumulated value conditionally | <p>I have the following pandas dataframe:</p>
<pre><code>diff_hours stage sensor
0 0 20
0 0 21
0 0 21
1 0 22
5 0 21
0 0 22
0 1 20
7 1 23
0 1 24
0 ... | <python><pandas> | 2023-01-25 22:56:01 | 1 | 2,998 | Fluxy |
75,240,720 | 3,221,407 | S3 Select Query JSON for nested value when keys are dynamic | <p>I have a JSON object in S3 which follows this structure:</p>
<pre><code><code> : {
<client>: <value>
}
</code></pre>
<p>For example,</p>
<pre><code> {
"code_abc": {
"client_1": 1,
"client_2": 10
},
"code_def": {
... | <python><json><amazon-s3><boto3><amazon-s3-select> | 2023-01-25 22:51:35 | 1 | 432 | nvergos |
75,240,492 | 9,855,588 | python evaluate 2 values to eachother if not none | <p>Is it possible to do an evaluation, but only if both values aren't <code>None</code>?</p>
<pre><code>foo=a
bar=a
if foo==bar:
pass
</code></pre>
<p>But I need it as long as foo and bar are not <code>None</code>. Basically if both values are None, don't do the evaluation?</p>
| <python><python-3.x> | 2023-01-25 22:24:55 | 2 | 3,221 | dataviews |
75,240,465 | 9,287,587 | How can pyomo & ipopt calculate different results each time | <p>I am using <code>pyomo</code> and <code>ipopt</code> to solve a nonlinear problem involving over 100 variables. I don't know too much math to know what the options in ipopt mean.</p>
<p>If my conditions are set relatively loosely, I find that every time my program is restarted, the results are far different from the... | <python><pyomo><np><ipopt> | 2023-01-25 22:22:16 | 0 | 405 | scott |
75,240,343 | 7,331,538 | Scrapy request in an infinite loop until specific callback result | <p>I want to call N scrapy requests from <code>start_requests</code>. This value is dynamic since I want to loop through all pages in an API. I do not know the limit number of pages before hand. But I know that when I exceed the number of pages, the response of the API will be an empty json. I want to do something like... | <python><while-loop><scrapy><request><scrapy-request> | 2023-01-25 22:04:17 | 1 | 2,377 | bcsta |
75,240,106 | 6,077,239 | How can I make polars cut method deal with null correctly? | <p>As of current, it seems like pl.cut cannot maintain order and handle missing value (null).
For example, the following code fails, which means it cannot handle null.</p>
<pre><code>import polars as pl
s = pl.Series([1, 1, 4, 3, 5, 2, 2, None])
pl.cut(s, bins=[2, 4])
</code></pre>
<p>Another example shows that its out... | <python><python-polars> | 2023-01-25 21:34:18 | 1 | 1,153 | lebesgue |
75,240,070 | 2,210,825 | How can custom errorbars be aligned on grouped bars? | <p>I have created a <code>sns.catplot</code> using seaborn. My goal is to obtain a barplot with error bars.</p>
<p>I followed <a href="https://stackoverflow.com/questions/74540942/shift-error-bars-in-seaborn-barplot-with-two-categories">this</a> answer to error bars to my plot. However, I now find that my error bars, u... | <python><matplotlib><seaborn><errorbar><grouped-bar-chart> | 2023-01-25 21:29:44 | 1 | 1,458 | donkey |
75,240,066 | 4,219,005 | How to compute rolling average in pandas just for a specific date | <p>I have this example dataframe below. I created a function that does what I want, computing a <code>Sales</code> rolling average (7,14 days window) for each <code>Store</code> for the previous day and shifts it to the current date. How can I compute this <strong>only</strong> for a specific date, <code>2022-12-31</co... | <python><pandas><dataframe><rolling-computation> | 2023-01-25 21:29:20 | 1 | 570 | RodiX |
75,239,878 | 8,076,768 | Visual studio terminal | <p>How to convert the following codes in VS Code terminal?</p>
<pre><code>conda create -n cluster_topic_model python=3.7 -y
conda activate cluster_topic_model
</code></pre>
| <python><visual-studio-code> | 2023-01-25 21:08:13 | 1 | 343 | SaNa |
75,239,861 | 12,242,085 | How to check whether all values are in input DataFrame for pivot_table and create and fill by 0 some values which not exists in Python Pandas? | <p>I have table in Python Pandas like below:</p>
<p><strong>Input:</strong></p>
<pre><code>df = pd.DataFrame()
df["ID"] = [111,222,333]
df["TYPE"] = ["A", "A", "C"]
df["VAL_1"] = [1,3,0]
df["VAL_2"] = [0,0,1]
</code></pre>
<p>df:</p>
<pre><code>ID ... | <python><pandas><dataframe><pivot><pivot-table> | 2023-01-25 21:05:58 | 2 | 2,350 | dingaro |
75,239,840 | 13,313,873 | Fibonacci function can not recurse - NameError: name 'fib' is not defined | <p>When using an embeddded interpreter</p>
<pre><code>>>> import IPython
>>> IPython.embed()
In [1]: def fib(n):
...: if n <= 1:
...: return n
...: else:
...: return fib(n-1) + fib(n-2)
...:
In [2]: fib(2)
---------------------------------------------------------... | <python><function><recursion><ipython><fibonacci> | 2023-01-25 21:03:58 | 0 | 955 | noob overflow |
75,239,767 | 34,935 | How to map Django TextChoices text to a choice? | <p>Suppose I have this code, inspired from <a href="https://docs.djangoproject.com/en/4.1/ref/models/fields/#enumeration-types" rel="nofollow noreferrer">the Django docs</a> about enumeration types:</p>
<pre class="lang-py prettyprint-override"><code>class YearInSchool(models.TextChoices):
FRESHMAN = 'FR', 'Fre... | <python><django><enums> | 2023-01-25 20:56:35 | 2 | 21,683 | dfrankow |
75,239,708 | 9,511,844 | Send message from bot to self with telethon | <p>I'm trying to send a message to myself using a Telegram bot I have created, and I got the values from <a href="https://my.telegram.org" rel="nofollow noreferrer">https://my.telegram.org</a> as well as the BotFather.</p>
<pre class="lang-py prettyprint-override"><code>import telebot
from telethon.sync import Telegram... | <python><telethon> | 2023-01-25 20:49:54 | 1 | 551 | J P |
75,239,621 | 14,514,276 | class variable doesn't update after __call__ | <p>I have probably an easy question. Why if I run <code>get_predictions</code> method inside <code>print</code> it gives me <code>[]</code> and not a <code>[1,2,3]</code>? Value assignment should be done at object creation (<code>__call__</code>).</p>
<pre><code>class Learner():
def __init__(self):
self.pre... | <python><class><call> | 2023-01-25 20:41:25 | 0 | 693 | some nooby questions |
75,239,620 | 2,985,796 | Converting elements of 2D Tensor based on element mapping between old and new values? | <p>I have a 2D tensor that contains the indices into some other tensor.</p>
<pre><code>old = torch.Tensor([
[1, 2, 12, 12],
[0, 1, 12, 12],
[3, 5, 12, 12],
[7, 8, 12, 12],
[6, 7, 12, 12],
[9, 11, 12, 12]])
</code></pre>
<p>I have another tensor that represents a mapping between elements in the <... | <python><indexing><pytorch><tensor> | 2023-01-25 20:41:21 | 1 | 7,178 | KDecker |
75,239,345 | 3,684,433 | How do I use 1D gradients to compute a 2D Sobel in OpenCV with a different vector norm? | <p>OpenCV uses an implementation of a <a href="https://docs.opencv.org/4.x/d4/d86/group__imgproc__filter.html#gacea54f142e81b6758cb6f375ce782c8d" rel="nofollow noreferrer">Sobel operator defined here</a> (<a href="https://docs.opencv.org/4.x/d2/d2c/tutorial_sobel_derivatives.html" rel="nofollow noreferrer">details here... | <python><opencv><derivative><sobel> | 2023-01-25 20:12:13 | 3 | 447 | maldata |
75,239,326 | 19,094,667 | Finding the positions of multiple objects in an image, but only when they are next to each other | <p>Finding the positions of multiple objects in an image, but only when they are next to each other. So I would like to use parameters to decide whether 2 or 3 are next to each other and then get the coordinates.</p>
<p>At the moment I can only find one and it works. Code:</p>
<pre><code>def diff(a, b):
return sum(... | <python><python-imaging-library> | 2023-01-25 20:10:02 | 0 | 517 | Agan |
75,239,229 | 5,722,359 | How to change the default size/geometry of tkinter.filedialog.askdirectory()? | <p>How do I change the default size/geometry of <code>tkinter.filedialog.askdirectory()</code>? I find its default size small and would like to make it wider and taller upon activation.</p>
<p>I am aware that:</p>
<ol>
<li><p>Its window size can be changed manually using the mouse pointer but that is not what I am afte... | <python><tkinter><tcl> | 2023-01-25 19:59:59 | 0 | 8,499 | Sun Bear |
75,238,829 | 19,854,658 | Iterating through multiple arguments in a function? | <p>How would I go about iterating through this function so that it tries all possible combinations where <strong>a</strong>, <strong>b</strong>, <strong>c</strong>, <strong>d</strong> are a range of numbers where:</p>
<p><strong>a</strong> = 20 to 40, <strong>b</strong> = 80 to 100, <strong>c</strong> = 100 to 120, <st... | <python> | 2023-01-25 19:17:33 | 2 | 379 | Jean-Paul Azzopardi |
75,238,616 | 3,285,014 | Code to generate many test case files and its contents | <p>I have hunderds of files that needs to be grouped and modified. Instead, I thought it might be easier to somehow regenerate the files with correct data and formats.</p>
<p>There are 3 modes; mode1, mode2 and mode3. Each mode contains 45 test cases, which are named as:
(For Mode 1): mode1_test1.txt, mode1_test2.txt..... | <python><shell> | 2023-01-25 18:55:16 | 1 | 319 | user3285014 |
75,238,557 | 13,460,543 | How to insert a pre-initialized dataframe or several columns into another dataframe at a specified column position? | <p>Suppose we have the following dataframe.</p>
<pre class="lang-none prettyprint-override"><code> col1 col2 col3
0 one two three
1 one two three
2 one two three
3 one two three
4 one two three
</code></pre>
<p>We seek to introduce 31 columns into this dataframe, each column representing a day in the ... | <python><pandas><dataframe><numpy><join> | 2023-01-25 18:50:00 | 5 | 2,303 | Laurent B. |
75,238,504 | 4,935,567 | How can I make ipython incognito for a session? | <p>Is there any way to force <em>IPython</em> not to save the current session's history to the history file? <a href="https://stackoverflow.com/questions/35093576/how-can-i-avoid-storing-a-command-in-ipython-history">A similar question</a> has been asked about not saving a single command, but it's not practical to do t... | <python><ipython> | 2023-01-25 18:45:16 | 2 | 2,618 | Masked Man |
75,238,435 | 4,565,128 | How to evaluate Gaussian Process Latent Variable Model¶ | <p>I am following a tutorial on Gaussian Process Latent Variable Model here is the link <a href="https://pyro.ai/examples/gplvm.html" rel="nofollow noreferrer">https://pyro.ai/examples/gplvm.html</a></p>
<p>It is a dimension-reduction method.
Now I want to evaluate the model and find the accuracy, confusion matrix is ... | <python><pyro><gaussian-process> | 2023-01-25 18:39:35 | 1 | 465 | Mitu Vinci |
75,238,283 | 8,595,958 | Asymmetric Swaps - minimising max/min difference in list through swaps | <p>Was doing some exercises in CodeChef and came across the <a href="https://www.codechef.com/problems/ARRSWAP?tab=statement" rel="nofollow noreferrer">Asymmetric Swaps</a> problem:</p>
<blockquote>
<h3>Problem</h3>
<p>Chef has two arrays 𝐴 and 𝐵 of the same size 𝑁.</p>
<p>In one operation, Chef can:</p>
<ul>
<li>Ch... | <python><data-structures> | 2023-01-25 18:25:07 | 1 | 811 | Mike |
75,238,182 | 5,452,008 | Best way to use match case for integers in Python | <p>What is the best way to check whether something is an integer in Python 3.10+, regardless if it is a native int, or numpy int8, int32, int64 etc. ?</p>
<pre><code>import numpy as np
def func(token):
match token:
case int():
print('integer')
case str():
print('string')
... | <python> | 2023-01-25 18:16:25 | 0 | 9,295 | Soerendip |
75,237,939 | 15,283,859 | Update values in dataframe based on dictionary and condition | <p>I have a dataframe and a dictionary that contains some of the columns of the dataframe and some values. I want to update the dataframe based on the dictionary values, and pick the higher value.</p>
<pre><code>>>> df1
a b c d e f
0 4 2 6 2 8 1
1 3 6 7 7 8 5
2 2 1 ... | <python><python-3.x><pandas><numpy><vectorization> | 2023-01-25 17:53:25 | 2 | 895 | Yolao_21 |
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