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How can I use xlsxwriter to create one textbox on a worksheet with multiple formats?
<p>I am using xlswriter to create a textbox in a Excel worksheet as follows:</p> <pre><code>import xlsxwriter text = 'this is line 1 \nthis is line 2 \nthis is line 3' workbook = xlsxwriter.Workbook('c:/tmp/test.xlsx') worksheet = workbook.add_worksheet('Information') options = { 'width':200, '...
<python><xlsxwriter>
2023-01-06 14:19:19
0
1,843
afshin
75,031,989
2,800,105
Encoding json to bytes
<p>I have a problem that bites its own tail. In the code below I am creating a json element with file-paths, these contain special characters. Encoding results in a unicode-escape characters and the path is not readable server receiving the json. If I try to encode the strings, before the json the json library can't se...
<python><json><encoding>
2023-01-06 14:07:49
1
648
Mathias
75,031,916
825,924
trio.Event(): Which is “better”: setting and initializing a new Event or checking if someone is waiting for it beforehand?
<pre><code>import trio work_available = trio.Event() async def get_work(): while True: work = check_for_work() if not work: await work_available.wait() else: return work def add_work_to_pile(...): ... if work_available.statistics().tasks_waiting: global work_available work_avail...
<python><asynchronous><async-await><python-trio>
2023-01-06 14:00:15
3
35,122
Robert Siemer
75,031,868
13,802,115
resampling .agg/.apply behavior
<p>This question relates to resample <code>.agg/.apply</code> which behaves differently than groupby <code>.agg/.apply</code>.</p> <p>Here is an example df:</p> <pre><code>df = pd.DataFrame({'A':range(0,100),'B':range(0,200,2)},index=pd.date_range('1/1/2022',periods=100,freq='D')) </code></pre> <p>Output:</p> <pre><cod...
<python><pandas>
2023-01-06 13:56:11
1
8,880
rhug123
75,031,831
1,237,832
How to apply FastAPI Middleware on "non-async def" endpoints?
<p>According to <a href="https://fastapi.tiangolo.com/tutorial/middleware/" rel="nofollow noreferrer">https://fastapi.tiangolo.com/tutorial/middleware/</a>, we could apply a FastAPI Middleware on <code>async def</code> endpoints.</p> <p>Currently I have several <code>non-async def</code> endpoints, how to apply FastAPI...
<python><asynchronous><python-asyncio><fastapi><middleware>
2023-01-06 13:53:08
1
2,481
zhfkt
75,031,787
42,446
Refactoring multiple IF statements to something cleaner in Python
<p>Within our codebase, we currently have a bit of code that looks like this. (Python obviously). It's now stretching to some 100 lines long, and feels very much like it is a candidate for refactoring.</p> <p>TOOL_NAME = &quot;tool_name&quot; TOOL_NAME_TWO = &quot;tool_name_two&quot;</p> <p>class DetailRetrievalFactory...
<python><design-patterns>
2023-01-06 13:49:58
1
4,492
Squiggs.
75,031,707
11,334,393
Can't fetch flask api on react native expo app running on my android phone
<p>I am running my flask application on localhost and created apis using flask-restful library. I am using my network ip address in the api call. When I call api from react native app using expo, the api is not being called and I am not getting any network request failed error. I have added CORS also in my flask app.</...
<python><android><react-native><flask><expo>
2023-01-06 13:42:40
1
456
za_ali33
75,031,578
11,143,781
Specifying figure size in print_figure function in Matplotlib.FigureCanvasBase
<p>I have a Canvas class that inherits from the FigureCanvas class in Matplotlib.</p> <pre><code>from matplotlib.backends.backend_qt5agg import FigureCanvas class Canvas(FigureCanvas): def __init__(self): fig = Figure(figsize=(5, 3)) super().__init__(fig) </code></pre> <p>And I display canvas figure...
<python><matplotlib><pyqt5>
2023-01-06 13:28:50
0
316
justRandomLearner
75,031,577
19,161,462
How to assign default value of the model based on the value of ForeignKey
<p>I have the <code>Account</code> model were I store information about preferred units. However I also want to allow user to change the units for particular exercise which by default should be <code>Account.units</code>.</p> <p>Here are my models:</p> <pre><code>class Account(models.Model): &quot;&quot;&quot;Model...
<python><django><django-models><design-patterns>
2023-01-06 13:28:49
2
350
Karol Milewczyk
75,031,570
4,321,525
How can I convert some columns of a numpy structured array to a different time format?
<p>I want to convert a structured NumPy array with datetime64[m] and a timedelta64[m] fields to an equivalent structured array with seconds since the epoch.</p> <p>The field size in an <code>np.array</code> is important for converting an unstructured array into a structured array. (<a href="https://stackoverflow.com/qu...
<python><numpy><data-structures>
2023-01-06 13:27:43
1
405
Andreas Schuldei
75,031,433
5,224,881
tf.io.GFile with Tensor String Input
<p>I want to have retrieval of GCS object/any S3 object as a part of the Model, as a first layer which will obtain features based on the filename, because it will lower the networking overhead, and I am trying to wrap the download into the <code>tf.function</code>, but no success. Here is MWE:</p> <pre><code>import ten...
<python><tensorflow>
2023-01-06 13:15:34
1
1,814
Matěj Račinský
75,031,288
822,896
Python Type Hint for Returning Concrete Class
<p>I have some code (attached below) that I'm running with Python 3.10.</p> <p>The code runs fine, but pylance in VS Code flags an error for these lines:</p> <pre class="lang-py prettyprint-override"><code>books: list[SoftBack] = [softback_book_1, softback_book_2] processed_books = BookProcessor(books).process() </code...
<python><python-3.x><type-hinting><pylance>
2023-01-06 13:03:16
1
1,229
Jak
75,031,228
1,169,220
python attrs inherited field value gets overwritten
<p>I have some <code>attrs</code> classes that inherit from a base class. The parent class has a field that is also an attrs class.</p> <p>If I instantiate two instances of the child classes and set the common inherited field's sub-field, the other instance's field gets overwritten as well.</p> <p>I could work around t...
<python><inheritance><python-attrs>
2023-01-06 12:57:10
2
480
waszil
75,031,198
6,672,815
Implementing generator throw() method in pybind11
<p>I'm implementing a generator in C++ using pybind11 and the bit I'm having difficulty with is implementing the <code>throw</code> method.</p> <p>In python it has this signature and typical implementation:</p> <pre class="lang-py prettyprint-override"><code>def throw(self, exception_type: type | None = None, exception...
<python><c++><generator><pybind11>
2023-01-06 12:53:52
1
830
virgesmith
75,031,011
14,667,788
full xpath does not math the correct field in python selenium
<p>I have a following problem. On the picture bellow I would like to fill some text into the second (red) field.</p> <p><a href="https://i.sstatic.net/ZSNs6.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/ZSNs6.png" alt="enter image description here" /></a></p> <p>My code:</p> <pre class="lang-py prettyp...
<python><selenium><selenium-webdriver><xpath><webdriverwait>
2023-01-06 12:34:24
3
1,265
vojtam
75,030,971
8,771,201
Selenium can't find element by class name which needs to be clicked
<p>On this page:</p> <p><a href="https://i.sstatic.net/pG27c.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/pG27c.png" alt="enter image description here" /></a></p> <p><a href="https://finance.yahoo.com/quote/AAPL/balance-sheet?p=AAPL" rel="nofollow noreferrer">https://finance.yahoo.com/quote/AAPL/balan...
<python><selenium><xpath><css-selectors><webdriverwait>
2023-01-06 12:30:07
1
1,191
hacking_mike
75,030,842
778,942
Sorting of simple python dictionary for printing specific value
<p>I have a python dictionary.</p> <pre><code>a = {'1':'saturn', '2':'venus', '3':'mars', '4':'jupiter', '5':'rahu', '6':'ketu'} planet = input('Enter planet : ') print(planet) </code></pre> <p>If user enteres 'rahu', dictionary to be sorted like the following</p> <pre><code>a = {'1':'rahu', '2':'ketu', '3':'saturn', '...
<python><python-3.x><dictionary>
2023-01-06 12:17:54
2
19,252
sam
75,030,749
12,396,154
What is the best principle to write files to a folder and delete them after a while within one script in Python?
<p>I query the sql server and then write the result into a separated csv file in a folder every 10 secs. Then I want to delete those files which are older than 3 days and let the script run forever. So What I did is:</p> <pre><code>def write_csv(): # connect to sql server and query the info # write the query re...
<python><design-patterns><io>
2023-01-06 12:08:22
2
353
Nili
75,030,715
9,648,374
Reading protobuf Message file in Python
<p>I have a pb file abc.pb file.</p> <p>I need to read the file by retaining its format i.e. dont want to convert pb file to string and then again reconverting it.</p> <p>Currently I m trying options with</p> <pre><code> with open(data, &quot;rb&quot;) as file_handle: data = file_handle.read() </code></pre> ...
<python><protocol-buffers>
2023-01-06 12:05:04
1
489
Isha Nema
75,030,573
8,510,149
Count occurrence within a group using different columns for each group
<p>In df below there are three groups in the variable 'group' - 'A', 'AB', 'C'. The other columns in the df is assigned to a specific group by suffix - var1_A relates to group A and so forth.</p> <pre><code>data = pd.DataFrame({'group':['A', 'AB', 'A', 'AB', 'AB', 'C', 'C', 'A', 'A', 'AB'], 'var1_A...
<python><pandas>
2023-01-06 11:50:50
2
1,255
Henri
75,030,524
7,093,241
How to write in with its fundamental brute steps?
<p>I was looking to solve the <a href="https://leetcode.com/problems/longest-consecutive-sequence/description/" rel="nofollow noreferrer">longest consecutive sequence question on Leetcode</a> and this is the provided solution.</p> <p>The question lies in the inner loop right after <code> # how to rewrite this part with...
<python><arrays><search>
2023-01-06 11:46:48
1
1,794
heretoinfinity
75,030,513
1,484,601
github actions: how to access badges?
<p>This documentation explains how workflows generate badges, and how to access them:</p> <p><a href="https://docs.github.com/en/actions/monitoring-and-troubleshooting-workflows/adding-a-workflow-status-badge" rel="nofollow noreferrer">https://docs.github.com/en/actions/monitoring-and-troubleshooting-workflows/adding-a...
<python><github-actions><badge>
2023-01-06 11:45:55
1
4,521
Vince
75,030,385
25,282
Problem with softPageBreaks when reading a odf file with lxml to create a LaTeX file
<p>I have a Google Doc that I want to convert into a LaTeX file while stripping out some content of the Google Doc. Specifically I want to remove all headlines in the Google Doc. I also currently have four-line paragraphs in the Google Doc where each line ends with a newline character. This means that in Google Doc the...
<python><xml-parsing><lxml><odf><pylatex>
2023-01-06 11:31:29
0
26,469
Christian
75,030,342
8,564,860
Apache Beam - ReadFromText safely (pass over errors)
<p>I have a simple Apache Beam pipeline which reads compressed bz2 files and writes them out to text files.</p> <pre><code>import apache_beam as beam p1 = beam.Pipeline() (p1 | 'read' &gt;&gt; beam.io.ReadFromText('bad_file.bz2') | 'write' &gt;&gt; beam.io.WriteToText('file_out.txt') ) p1.run() </co...
<python><google-cloud-dataflow><apache-beam>
2023-01-06 11:26:44
1
1,102
John F
75,030,103
6,681,932
Create weekly time series with DARTS from dataframe
<p>How to create a time series with darts having weekly frequency?</p> <p>When having weekly data as follows:</p> <pre><code>import pandas as pd df = pd.DataFrame({ 'Date' : [ pd.to_datetime('2022-12-05'), pd.to_datetime('2022-12-12'), pd.to_datetime('2022-12-19'), pd.to_datetime('2...
<python><time-series><u8darts>
2023-01-06 11:03:01
1
478
PeCaDe
75,030,061
2,583,476
Python OpenCV waitKeyEx() stops picking up arrow keys after mouse click or tab
<p>I'm writing a camera viewer for a lab setup. Much of the display control is done using the keyboard, a couple of things need a mouse. Anyway, even without a mouse event handler, I see the same issue.</p> <p>To nudge the region of interest I use the arrow keys. This works - until I click with the mouse anywhere in...
<python><linux><opencv>
2023-01-06 10:58:47
0
351
Chris H
75,030,007
10,613,037
User object has no attribute 'code', when code is not passed to User.objects.create
<p>Im using Django Rest Framework to create a view that verifies an otp. Currently, it works just fine. models.py</p> <pre class="lang-py prettyprint-override"><code>class User(AbstractUser): phone_number = PhoneNumberField(blank=True) def __str__(self) -&gt; str: return f&quot;{self.username}&quot; </c...
<python><django><django-models><django-rest-framework>
2023-01-06 10:53:10
1
320
meg hidey
75,029,921
16,978,074
add data in a dictionary and print it with python
<p>hello all I'm just learning python and i have a problem. I want to add the results of a network request inside a dictionary in python and then . I want to download the movie title and id of all the movies on a movie site and put it inside a dictionary. Since the dictionary key must be unique, I thought of creating a...
<python><dictionary><for-loop><setdefault>
2023-01-06 10:45:09
0
337
Elly
75,029,897
353,337
Traverse a Python AST breadth first
<p>I have a <a href="https://docs.python.org/3/library/ast.html" rel="nofollow noreferrer">Python AST</a> that I'd like to traverse breadth first. <a href="https://docs.python.org/3/library/ast.html#ast.walk" rel="nofollow noreferrer"><code>ast.walk</code></a> appears to do the trick, but from its documentation</p> <bl...
<python><abstract-syntax-tree><breadth-first-search>
2023-01-06 10:43:05
0
59,565
Nico Schlömer
75,029,810
19,797,660
Dataframe - How to access datetime properties?
<p>I want to acces <code>datetime</code> object properties like <code>.seconds()</code>, <code>.minutes()</code> etc. <code>Datetime</code> values are stored in <code>Dataframe</code> in column <code>DateTime</code>. I need this acces so I can use <code>np.where()</code> on these values like in a following example but ...
<python><pandas><python-datetime>
2023-01-06 10:35:07
1
329
Jakub Szurlej
75,029,788
16,521,194
Datetime to timestamp (year 1) raises ValueError
<h1>Goal</h1> <p>I want to convert a <code>datetime.datetime</code> object to a timestamp.</p> <h1>Code and output</h1> <pre class="lang-py prettyprint-override"><code>from datetime import datetime dt1: datetime = datetime(year=2023, month=1, day=6) ts1: int = dt1.timestamp() # &gt; 1672959600.0 dt2: datetime = dateti...
<python><datetime><timestamp>
2023-01-06 10:32:38
2
1,183
GregoirePelegrin
75,029,605
2,218,321
Python and Matlab differences in linear algebra calculates
<p>I need to write a program for linear algebra calculates. I switched from Matlab to python and worked with numpy and scipy. There are some small differences in precision between Python and Matlab which cause different result in the end. For example for the matrix</p> <pre><code>A =[2 -25, -25 -622] </co...
<python><numpy><matlab><scipy><linear-algebra>
2023-01-06 10:16:22
1
2,189
M a m a D
75,029,545
19,797,660
Dataframe - Converting entire column from str object to datetime object - TypeError: strptime() argument 1 must be str, not Series
<p>I want to convert values in entire column from <code>strings</code> to <code>datetime</code> objects, but I can't accomplish it with this code which works on solo strings i.e. (if I add .iloc[] and specify the index):</p> <pre><code>price_df_higher_interval['DateTime'] = datetime.datetime.strptime(price_df_higher_in...
<python><pandas><python-datetime>
2023-01-06 10:10:18
1
329
Jakub Szurlej
75,029,241
1,866,775
Why does a Flask request in Python fail to deserialize JSON POST data when there is no Content-Type header?
<p>Minimal example:</p> <pre><code>#!/usr/bin/env python3 import json from dataclasses import dataclass from flask import Flask, request, make_response from flask_restful import Resource, Api @dataclass class Foo: bar: int class WebController(Resource): def __init__(self, factor) -&gt; None: self....
<python><json><flask><post><http-headers>
2023-01-06 09:41:12
1
11,227
Tobias Hermann
75,029,046
7,104,128
Flexible and customized tables using svg
<p>When representing conditional probabilities (P(X|Y,Z,...), one has to deal with large tables of numbers (aka CPTs). PyAgrum (a python package) use html in notebooks to obtain a quite good representation of these CPTs :</p> <p><a href="https://i.sstatic.net/tyuEd.png" rel="nofollow noreferrer"><img src="https://i.sst...
<python><html><svg><probability>
2023-01-06 09:24:02
0
551
Pierre-Henri Wuillemin
75,028,761
13,568,193
Replace Nan with previous row value in pandas dataframe
<p>I have a dataframe named <code>purchase_df</code> with columns (<code>purchase_item</code>, <code>purchase_date</code>, <code>purchase_quantity</code>, <code>purchase_price_unit</code>, <code>sales_quantity</code>) and some of the value of <code>purchase_price_unit</code> is <strong>Nan</strong>(empty) and I need to...
<python><pandas><dataframe>
2023-01-06 08:50:58
1
383
Arpan Ghimire
75,028,755
7,905,329
How to unmerge multiple cells and transpose each value into a new column in Pandas dataframe from Excel file
<p>This has 4 to 5 merged cells, blank cells. I need to get them in a format where a column is created for each merged cell.</p> <p>Please find the link for Sample file and also the output required below.</p> <h3>Link : <a href="https://docs.google.com/spreadsheets/d/1fkG9YT9YGg9eXYz6yTkl7AMeuXwmNYQ44oXgA8ByMPk/edit?us...
<python><python-3.x><excel><pandas><dataframe>
2023-01-06 08:49:51
1
364
anagha s
75,028,556
225,262
How to use type hint with SQLAlchemy models?
<p>Let's we have a model defined as a subclass of the declarative base:</p> <pre><code>class User(Base): name = Column(String) </code></pre> <p>Later, I define a function that returned a <code>User</code> and specify the returned type as a type hint:</p> <pre><code>def find_user(name: str) -&gt; User: ... r...
<python><sqlalchemy>
2023-01-06 08:26:09
2
33,385
satoru
75,028,503
2,707,864
What are the differences between a**b and pow(a,b), in symbolic calculation
<p><strong>EDIT</strong>: added <code>assert</code> as <a href="https://stackoverflow.com/a/75030966/2707864">suggested by Wrzlprmft</a>, which does not raise any exception.</p> <p>I have to write code with many expressions of type <code>a**b</code>, under the following circumstances</p> <pre><code>import sympy as sp a...
<python><sympy><pow><exponentiation>
2023-01-06 08:18:35
1
15,820
sancho.s ReinstateMonicaCellio
75,028,348
12,104,604
How to convert from world coordinates to camera coordinates
<p>In the world coordinate system, there are objects with rotation values <code>rx1,ry1,rz1</code> and position values <code>px1,py1,pz1</code>.</p> <p>Similarly, there is an camera in the world coordinate system with rotation values <code>rx2,ry2,rz2</code> and position values <code>px2,py2,pz2</code>.</p> <p>What for...
<python><unity-game-engine><3d>
2023-01-06 07:58:15
1
683
taichi
75,028,192
10,748,412
Get a Foreign Key value with django-rest-framework serializers
<p>I'm using the django rest framework to create an API.</p> <p>models.py</p> <pre><code>class DepartmentModel(models.Model): DeptID = models.AutoField(primary_key=True) DeptName = models.CharField(max_length=100) def __str__(self): return self.DeptName class Meta: verbose_name = 'Depa...
<python><django><postgresql><django-rest-framework>
2023-01-06 07:41:02
2
365
ReaL_HyDRA
75,027,919
9,196,825
Python script to set all subtitles for movies and shows in plex to English non forced subtitles
<p><strong>Edit:</strong> This code is working and completed. Thanks to all who helped! Feel free to use this code for your own purposes. I will be running this code periodically on my home server to set preferred subtitles. Cheers!</p> <p>This code was created with the help of <a href="https://chat.openai.com/" rel="n...
<python><plex>
2023-01-06 07:03:29
1
477
Riley Bell
75,027,840
1,654,229
Convert a python dict to correct python BaseModel pydantic class
<p>My requirement is to convert python dictionary which can take multiple forms into appropriate pydantic BaseModel class instance. Following are details:</p> <pre><code>class ConditionType(str, Enum): EXPRESSION = 'EXPRESSION' CYCLE_DUR_TREND = 'CYCLE_DUR_TREND' class ConditionalExpressionProps(BaseConditiona...
<python><inheritance><pydantic>
2023-01-06 06:53:15
1
1,534
Ouroboros
75,027,635
19,797,660
Python, how to assign boolean comparison operators to variables?
<p>I'd like to asign these operators to variables. I have a flag that if is set to <code>True</code> uses <code>&gt;</code> or <code>&gt;=</code> in certain conditions, but when I set the flag to <code>False</code> I want to use <code>&lt;</code> or <code>&lt;=</code> instead.</p> <p>Example:</p> <pre><code>up_down: bo...
<python><boolean-operations>
2023-01-06 06:23:19
0
329
Jakub Szurlej
75,027,483
6,703,592
why sklearn SelectFromModel estimator_.coef_ return a 2d-array
<p>I asked in <a href="https://stats.stackexchange.com/">Cross Validated</a> before but it seems it should be proper to ask here.</p> <p>My data <code>df_X</code> has 11 features, and <code>y</code> is the multi-class label (3,4,5,6,7,8 in samples). I used multi-class SVM to select the importance of features. <code>est...
<python><scikit-learn><feature-selection>
2023-01-06 06:02:52
1
1,136
user6703592
75,027,285
882,932
Filter pandas frame by values that are already grouped on consecutive rows
<p>Consider a dataframe that would look like this :</p> <pre><code>Col1 Col2 Col3 ABC 00012 Hey! A1C 00012 Hello! AAA 00012 Hello ABC 00033 Hey! A1C 00021 Hi! AAA 00021 Hey... B3Y 00002 Hi. A5I 00002 Hey? EAA 00002 Hey! </code></pre> <p><code>Column2</code> va...
<python><pandas><sorting><optimization><filtering>
2023-01-06 05:34:44
0
61,061
Vincent
75,026,982
1,742,886
python3: conditional import from one of two packages
<p>I have two packages <code>fast</code> and <code>slow</code> which are &quot;api compatible&quot; with each other. If <code>fast</code> is available I want to import from it, else from <code>slow</code>. My current working solution is</p> <pre><code>import imp try: imp.find_module('fast') from fast.UtilityF...
<python>
2023-01-06 04:39:15
2
581
vijayvithal
75,026,816
523,612
Why doesn't my "formula" variable update automatically, like in a spreadsheet? How can I re-compute the value?
<p>I have noticed that it's common for beginners to have the following simple logical error. Since they genuinely don't understand the problem, a) their questions can't really be said to be caused by a typo (a full explanation would be useful); b) they lack the understanding necessary to create a proper example, explai...
<python><function><logic><variable-assignment>
2023-01-06 04:01:08
1
61,352
Karl Knechtel
75,026,813
17,779,615
How to set permission for 3 subfolder backwards after creating the directory in python
<p>I would like to create a folder &quot;C://user//Folder1//Folder2//Folder3//Folder4//Folder5//&quot; in python. &quot;C://user//Folder1//Folder2&quot; exists previously.</p> <p>When I create the desire folder, I want to allow permission to all Folder3, Folder4 and Folder5. While I don't want to affect the python's w...
<python><permissions>
2023-01-06 04:00:51
1
539
Susan
75,026,668
3,976,494
Multiply dataframe column by list of scalars and create a new column for each multiplication
<p>I have a dataframe</p> <pre><code> Date Date.1 SYMBL TF Pattern ... Stop Risk Amount GAP LVL Actual / Back Test Notes 0 00:00:00 2022-12-12 QCOM 5M Buy Setup ... 117.46 0.45 NaN Actual NaN 1 1900-01-01 00:00:00 2022-12-12 QCOM 5M ...
<python><pandas><dataframe>
2023-01-06 03:31:20
1
702
Hunter
75,026,592
18,193,889
How to create pandas output for custom transformers?
<p>There are a lot of changes in scikit-learn 1.2.0 where it supports pandas output for all of the transformers but how can I use it in a custom transformer?</p> <p><strong>In [1]:</strong> Here is my custom transformer which is a standard scaler: <br></p> <pre><code>from sklearn.base import BaseEstimator, TransformerM...
<python><machine-learning><scikit-learn><scikit-learn-pipeline>
2023-01-06 03:14:45
3
347
Armando Bridena
75,026,483
6,814,713
How to sort unbound list of PySpark columns by name?
<p>This seems like it should be pretty simple, but I'm stumped for some reason. I have a list of PySpark columns that I would like to sort by name (including aliasing, as that will be how they are displayed/written to disk). Here's some example tests and things I've tried:</p> <pre class="lang-py prettyprint-override">...
<python><apache-spark><pyspark>
2023-01-06 02:51:45
2
2,124
Brendan
75,026,447
10,141,914
Memoisation - Bernoulli numbers
<p>I am trying to compute some <a href="https://math.stackexchange.com/questions/2844290/what-is-the-simplest-way-to-get-bernoulli-numbers">Bernoulli numbers</a> and am trying to use <a href="https://towardsdatascience.com/memoization-in-python-57c0a738179a" rel="nofollow noreferrer">memoisation</a>. In the example bel...
<python><recursion><memoization>
2023-01-06 02:45:14
1
1,718
william3031
75,026,436
11,171,682
Constructing Tensorflow Dataset and applying TextVectorization layer using map method
<p>I'm attempting to construct input to an embedding layer for an NLP model. However, I am having problems with converting raw text data to the numerical input required by the embedding layer.</p> <p>Here is some example data to illustrate what I wish to feed to the NLP model:</p> <pre><code># 0 = negative # 1 = positi...
<python><tensorflow><machine-learning><keras><nlp>
2023-01-06 02:43:49
2
747
hkj447
75,026,410
2,643,864
How to build a Pandas Dataframe with a Numpy Array from Imported CSV data with multiple numbers
<p>I'm a little stumped on this one. I've created a proof of concept where I built a Pandas Dataframe with a static Numpy Array of numbers. I got this working fine, but now I'm taking it a step further and importing a CSV file to build this same Dataframe and Numpy Array. Here is the snippet of the file and what I'v...
<python><arrays><pandas><dataframe><numpy>
2023-01-06 02:38:28
2
651
user2643864
75,026,352
1,899,433
Thread execution time seems incorrect
<p>I trying to poll an API and then time how long it takes to make a file available</p> <pre class="lang-py prettyprint-override"><code>def main(): pool = ThreadPoolExecutor(max_workers=8) for filename in os.listdir(data_dir): pool.submit(poll_status, filename) def poll_status(filename: str): start_t...
<python>
2023-01-06 02:27:46
0
568
Anon957
75,026,339
597,858
Create a bool list based on a list of float in python
<p>This is a <code>sample_list = [628.6, 628.25, 632.8, 634.65, 634.9, 635.85, 633.55]</code></p> <p>I want to create a bool list of true/false based on the condition that if a list value is greater than the previous value, it should be true, else false. In my case, result should be something like this:</p> <pre><code...
<python>
2023-01-06 02:25:14
2
10,020
KawaiKx
75,026,310
597,858
Create a Boolean column based on condition which involves value from a column of the current row and previous row in Pandas
<p>I want to add a Boolean column to this Dataframe.</p> <pre><code> date open high low close volume 1912 2023-01-05 09:15:00+05:30 641.80 644.30 626.35 628.60 615758 1913 2023-01-05 10:15:00+05:30 628.60 634.50 624.15 628.25 313480 1914 2023-01-05 11:15:00+05:30 627.80 ...
<python><pandas><dataframe>
2023-01-06 02:19:04
1
10,020
KawaiKx
75,026,218
344,669
Python pytest mock the class method - TypeError: 'str' object is not callable
<p>Based on this blog post <a href="https://changhsinlee.com/pytest-mock/" rel="nofollow noreferrer">https://changhsinlee.com/pytest-mock/</a>, trying to mock the object method call. But its giving the error for me.</p> <pre><code>tests/pytest_samples/test_load_data.py:5 (test_slow_load) mocker = &lt;pytest_mock.plugin...
<python><python-3.x><pytest>
2023-01-06 02:02:32
1
19,251
sfgroups
75,026,109
2,178,774
Matplotlib: Shared titles between rows within subplots
<p>Suppose we have the following:</p> <pre class="lang-py prettyprint-override"><code>fig, ax = plt.subplots(nrows=3, ncols=2, figsize=(10,10)) for i in range(0, 3): # Left plot ax[i,0].plot(data1[i].x, data1[i].y) # Right plot ax[i,1].plot(data2[i].x, data2[i].y) </code></pre> <p>Such that there are three rows...
<python><matplotlib>
2023-01-06 01:38:59
1
516
There
75,026,031
13,709,317
Preferred way to write audio data to a WAV file?
<p>I am trying to write an audio file using python's <code>wave</code> and <code>numpy</code>. So far I have the following and it works well:</p> <pre class="lang-py prettyprint-override"><code>import wave import numpy as np # set up WAV file parameters num_channels = 1 # mono audio samp...
<python><numpy><wav><wave>
2023-01-06 01:20:11
1
801
First User
75,025,990
14,044,486
Logging in python from multiple files
<p>I'm definitely missing something when it comes to logging using the logging module. I can get it to work just fine if I have just 1 file with everything in it, but when I try to split things up into separate files or packages I'm not sure what to do.</p> <p>Suppose I have a package with the following directory tree:...
<python><logging>
2023-01-06 01:10:36
1
593
Drphoton
75,025,969
1,726,404
How to monkey patch a function using pytest
<p>I am trying to test a function that reads in a csv file with some numbers and calculates the area. I am trying to test it by patching a pandas function using pytest, specifically read_csv function such that it returns the same dataframe every time. For some reason I can't seem to monkeypatch it</p> <p><strong>circle...
<python><pytest><monkeypatching>
2023-01-06 01:05:10
0
3,259
Kevin
75,025,925
3,276,836
When closing Kivy app settings, UI text changes don't work
<p>When I start the following app and click btn2 I observe the text of the button change as I would expect. When I open settings using btn1, then close settings and then click btn2 the text does not change again, yet the button is pressed (message is printed). I have noticed this happening with other labels as well and...
<python><kivy>
2023-01-06 00:58:20
1
474
alex10791
75,025,620
1,939,183
get column names from a python dataframe having values as white spaces without using loops
<p>I have a below dataframe, I am trying to get the column names that has empty strings in a most efficient way. The dataframe looks like below after doing df.head().</p> <pre><code>id type check company test 123 A Soft [[1649106820, 100029907158392,,,, 123]] 456 ...
<python><arrays><pandas><dataframe><numpy>
2023-01-05 23:55:43
2
379
keeplearning
75,025,334
12,357,696
Remove empty space at bottom of QTableWidget
<p>I'm using PySide6 6.4.1 to build a table widget that automatically resizes to the number of rows. Here's a minimal example:</p> <pre class="lang-py prettyprint-override"><code>from PySide6.QtWidgets import * class MW(QWidget): def __init__(self): super().__init__() self.button = QPushButton(&q...
<python><qt><pyside6>
2023-01-05 23:09:21
1
752
Antimon
75,025,330
19,633,374
Compare Two String Arrays
<p>I have two arrays</p> <pre><code>array_1 = [&quot;AAAA&quot;,&quot;BBBB&quot;] array_2 = [&quot;XXX&quot;,&quot;AA&quot;,&quot;AAAA&quot;,&quot;ZZZZ&quot;] </code></pre> <p>I want to compare there both arrays and return true if any element from array_1 matches with one in array_2.</p> <p>How can I do that?</p>
<python><arrays><string>
2023-01-05 23:08:33
4
642
Bella_18
75,025,284
16,978,074
How can I print the original title of the top 50 movies from themoviedatabase.org with python?
<p>hello all i'm learning python recently and i need to analyze the web of themoviedb.org website. I want to extract all the movies in the database and I want to print the original title of the first 50 movies.This is a piece of the json file that i receive as a response following my network request:</p> <pre><code>{&q...
<python><json><for-loop><themoviedb-api>
2023-01-05 23:02:49
2
337
Elly
75,025,188
458,700
run python app after server restart does not work using crontab
<p>I have a python application and I run it using <code>python app.py</code> but when the machine restart for any reason the application stoped</p> <p>I searched and I found that I can make it run again using corn jobs</p> <p>so I installed crontab and add the following code to it</p> <pre><code>@reboot /home/airnotifi...
<python><linux><ubuntu><cron>
2023-01-05 22:49:07
1
9,464
Amira Elsayed Ismail
75,025,117
11,564,487
Quarto ignores ipython output
<p>Consider the following <code>quarto</code> document:</p> <pre><code>--- title: &quot;Untitled&quot; format: pdf jupyter: r-reticulate --- ```{ipython} print('hello1') ``` ```{python} print('hello2') ``` </code></pre> <p>The <code>pdf</code> document does not print <code>hello1</code>, but prints <code>hello2</code...
<python><quarto>
2023-01-05 22:40:07
0
27,045
PaulS
75,025,087
820,088
Using win32com.client to Read MS Word Table
<p>I have a MS Word document (Microsoft 365) that I want to update via python using the win32com.client module. Within the .docx file, some tables have been inserted and there are cells containing text values within those tables, that I want to update. I've been testing how to read through the table using win32com. For...
<python><ms-word><office365><win32com><office-automation>
2023-01-05 22:36:35
1
4,435
Mike
75,025,065
6,611,672
Difference between Django `BaseCommand` loggers and `logging.getLogger()`
<p>When writing custom Django management commands, the <a href="https://docs.djangoproject.com/en/4.1/howto/custom-management-commands/" rel="nofollow noreferrer">docs</a> recommend using <code>self.stdout</code> and <code>self.stderr</code>.</p> <pre><code>class Command(BaseCommand): def handle(self, *args, **opti...
<python><django><logging>
2023-01-05 22:32:36
1
5,847
Johnny Metz
75,024,993
12,097,553
S3 presigned url: 403 error when reading a file but OK when downloading
<p>I am working with a s3 presigned url. OK: links works well to download. NOT OK: using the presigned url to read a file in the bucket</p> <p>I am getting the following error in console:</p> <pre><code>&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&gt; &lt;Error&gt;&lt;Code&gt;AuthorizationQueryParameter...
<python><django><amazon-web-services><amazon-s3><boto3>
2023-01-05 22:23:33
0
1,005
Murcielago
75,024,926
11,564,487
Is Quarto able to render documents with ipython magic?
<p>Consider the following document:</p> <pre><code>--- title: &quot;Untitled&quot; format: pdf jupyter: r-reticulate --- ```{python} %load_ext rpy2.ipython ``` </code></pre> <p>when rendered, it produces the following error:</p> <pre><code>An error occurred while executing the following cell: ------------------ %load_...
<python><quarto>
2023-01-05 22:15:28
1
27,045
PaulS
75,024,865
11,922,765
Python Dataframe categorize values
<p>I have a data coming from the field and I want to categorize it with a gap of specific range. I want to categorize in 100 range. That is, 0-100, 100-200, 200-300 My code:</p> <pre><code>df=pd.DataFrame([112,341,234,78,154],columns=['value']) value 0 112 1 341 2 234 3 78 4 154 </code></pre> <p>Expected...
<python><pandas><dataframe><numpy>
2023-01-05 22:08:08
2
4,702
Mainland
75,024,830
5,437,090
initilize the bash input argument when nothing is given | Error
<p>I have a following bash script which is a REST API for a national library using <code>curl</code> command:</p> <pre><code>#!/bin/bash for ARGUMENT in &quot;$@&quot; do echo &quot;$ARGUMENT&quot; KEY=$(echo $ARGUMENT | cut -f1 -d=) KEY_LENGTH=${#KEY} VALUE=&quot;${ARGUMENT:$KEY_LENGTH+1}&quot; ...
<python><json><bash><rest><curl>
2023-01-05 22:03:38
1
1,621
farid
75,024,604
6,630,397
Formatting the time slot of a Pylon's deform.widget.DateTimeInputWidget
<h4>Needs</h4> <p>I need to customize a <a href="https://docs.pylonsproject.org/projects/deform/en/latest/api.html#deform.widget.DateTimeInputWidget" rel="nofollow noreferrer"><code>deform.widget.DateTimeInputWidget</code></a>, especially to get rid of the seconds in the input time slot so that the user doesn't need to...
<python><datetimepicker><pyramid><pylons><deform>
2023-01-05 21:37:22
1
8,371
swiss_knight
75,024,589
13,142,245
Python Xpress get computation time and related statistics
<p>Xpress has some built in logging, including computation time, total memory available and threads used. However, there's quite a bit extraneous information in these logging statements. Is there a method to get this sort of information?</p> <p>What I'm looking for</p> <pre class="lang-py prettyprint-override"><code>xp...
<python><mixed-integer-programming><xpress-optimizer>
2023-01-05 21:35:17
1
1,238
jbuddy_13
75,024,416
5,056,347
How to download a pkpass file converted to base64 using HTML?
<p>From my server, I'm reading my pkpass file and converting it to base64. I want to make this file downloadable on my template. Here's what I'm doing.</p> <p><strong>Server/Python (Django)</strong></p> <pre><code>passfile_bytes = passfile.read() passfile_base64 = base64.b64encode(passfile) # This is sent to template <...
<python><html><apple-wallet><pkpass>
2023-01-05 21:14:01
1
8,874
darkhorse
75,024,361
14,104,321
Linear interpolation of 2D-arrays along one axis
<p>I need to interpolate 2D-arrays along one axis, in this case <code>axis=1</code>. I tried to use <code>scipy.interpolate.interp1d</code> but I cannot make it work.</p> <p>This is what I get with a simple example:</p> <pre><code>import numpy as np import scipy.interpolate xp = np.array([[0, 1, 2, 3, 4, 5, 6, 7, 8, 9...
<python><numpy><scipy><interpolation>
2023-01-05 21:07:28
1
582
mauro
75,024,325
18,392,410
Nim: How can I improve concurrent async response time and quota to match cpythons asyncio?
<p>For an upcoming project this year, I wanted to look into some languages that I haven't really used yet, but that repeatedly catch my interest. Nim is one of them 😊.</p> <p>I wrote the following code to make async requests:</p> <pre><code>import asyncdispatch, httpclient, strformat, times, strutils let urls = newHt...
<python><asynchronous><concurrency><request><nim-lang>
2023-01-05 21:02:19
1
563
tenxsoydev
75,024,310
10,818,367
pandas get first row for each unique value in a column
<p>Given a pandas data frame, how can I get the first row for each unique value in a column?</p> <p>for example, given:</p> <pre><code> a b key 0 1 2 1 1 2 3 1 2 3 3 1 3 4 5 2 4 5 6 2 5 6 6 2 6 7 2 1 7 8 2 1 8 9 2 3 </code></pre> <p>the result when analyzing ...
<python><pandas>
2023-01-05 21:00:33
1
1,212
Daniel Warfield
75,024,288
1,448,641
scalar/array multiplication return Any type
<p>I wonder why mypy produces so many &quot;Returning Any from function declared to return ...&quot; errors when it has to deal with numpy. In the example below, <code>a</code> is an array and <code>b</code> is a scalar. As I see it, there is no way in which <code>np.exp(a*x)</code> would return anything else but anoth...
<python><python-3.x><numpy><mypy><typing>
2023-01-05 20:57:56
1
5,519
MaxPowers
75,024,194
4,796,942
dask.compute all values of Dask DataFrame type that are stored as values in a dictionary
<p>I understand that if I store many Dask dataframes in a list I can compute all of them in parallel as</p> <pre><code>result = dask.compute(*container_list) </code></pre> <p>but how would I do something similar if I store the Dask dataframe results as values in a dictionary? (If <code>containe_dict</code> is a diction...
<python><dictionary><dask><dask-dataframe>
2023-01-05 20:47:30
1
1,587
user4933
75,024,139
13,142,245
Multi-Processing nested loops in Python?
<p>I have a multi-nested for loop and I'd like to parallelize this as much as possible, in Python.</p> <p>Suppose I have some arbitrary function, which accepts two arguments <code>func(a,b)</code> and I'd like to compute this function on all combinations of M and N.</p> <p>What I've done so far is 'flatten' the indices...
<python><for-loop><parallel-processing><multiprocessing>
2023-01-05 20:42:32
1
1,238
jbuddy_13
75,024,077
18,758,062
Matplotlib+Jupyter stops rendering animation when run inside a function
<p>After getting a <code>matplotlib</code> animation to run successfully inside a Vscode Juypter notebook cell, I decided to refactor the matplotlib animation code into a function but this causes the matplotlib figure to stop showing and display a warning</p> <blockquote> <p>UserWarning: Animation was deleted without r...
<python><matplotlib><visual-studio-code><jupyter-notebook><matplotlib-animation>
2023-01-05 20:35:17
0
1,623
gameveloster
75,023,945
8,230,132
list AWS SCP policies attached to an account
<p>Is there anyway I can get a list of all scp policies that is attached to particular account. I have many account in AWS organization and wanted make list of scp policies attached to each individual account. Below python function is working but only showing default AWS managed scp policy however there are many custom...
<python><python-3.x><amazon-web-services><boto3>
2023-01-05 20:21:38
0
703
Rio
75,023,913
11,621,983
Python MSS Screenshot monitor sizes different than expected
<p>Using mss, I have taken screenshots of my two monitors: monitor-1 and monitor-2. When I open up monitor-1, I get the image size of 3840x2160. However, when accessing monitors from <code>mss().monitors[1]</code>, I get the size of 1920x1080. They are two completely different sizes! <a href="https://i.sstatic.net/mSd7...
<python><macos><python-mss>
2023-01-05 20:18:38
1
382
unfestive chicken
75,023,869
12,596,824
Anonymizing column names
<p>I have a dataframe like so</p> <pre><code>IsCool IsTall IsHappy Target 0 1 0 1 1 1 0 0 0 1 0 0 1 0 1 1 </code></pre> <p>I want to anonymize the column names except for target. How can I do this?</p> <p>Expected output:</p> <pre><code>col1 col2 col3...
<python><pandas>
2023-01-05 20:13:24
3
1,937
Eisen
75,023,865
7,932,866
Sphinx auto-documentation doesn't work with classes which improt other classes
<p>I am currently working on a python project and want to automatically generate the documentation for my project</p> <p>In order to automatically generate my documentation, I do:</p> <ol> <li><code>sphinx-apidoc -f -o source ../modules</code></li> <li><code>make html</code></li> </ol> <p>But when I do that, I get the ...
<python><documentation><python-sphinx><documentation-generation>
2023-01-05 20:13:10
1
907
Lupos
75,023,669
25,282
Read a rtf file and filter out all headline and subtitle elements
<p>I have a Google document that has a lot of headlines and subtitles in addition to its text. Using python I want to read the rtf of the document and afterward use do my own process with the resulting text.</p> <p>How do I import the rtf?</p>
<python><rtf>
2023-01-05 19:51:37
1
26,469
Christian
75,023,581
3,654,588
Sphinx parent class in another package: how to disable single backtick reference warnings
<p>I am working on implementing a Python package that inherits from <a href="https://github.com/networkx/networkx" rel="nofollow noreferrer">networkx</a>. Networkx seems to use <code>numpydoc</code>, but also wraps certain parts of their docstrings in single backtick characters: <code>`</code>. This normally in rst fil...
<python><python-sphinx><restructuredtext><numpydoc>
2023-01-05 19:41:54
0
1,302
ajl123
75,023,337
9,721,314
How to extract the index of an element that can be found on several rows
<p>I am looking to extract column name and index of elements from a dataframe</p> <pre><code>import numpy as np import pandas as pd import random lst = list(range(30)) segments = np.repeat(lst, 3) random.shuffle(segments) segments = segments.reshape(10, 9) col_names = ['lz'+str(i) for i in range(95,104)] rows_names = [...
<python><pandas>
2023-01-05 19:15:16
1
474
Noura
75,023,313
8,551,424
Save kmeans model to future same data clustering
<p>I am currently working on clustering a data set. My question is, is there any way to save the result of the groups so that in the future I can work with new data and know to which group they belong according to the kmeans &quot;model&quot; I made?</p> <p>I have learned to work with Kmeans, it is very interesting, bu...
<python><cluster-analysis><k-means>
2023-01-05 19:11:15
1
1,373
Lleims
75,023,226
1,601,580
Why is pip not letting me install torch==1.9.1+cu111 in a new conda env when I have another conda env that has exactly that version?
<p>When I run the pip install in the new conda env:</p> <pre><code>(base) brando9~ $ pip install torch==1.9.1+cu111 torchvision==0.10.1+cu111 torchaudio==0.9.1 -f https://download.pytorch.org/whl/torch_stable.html Looking in links: https://download.pytorch.org/whl/torch_stable.html ERROR: Could not find a version that...
<python><pytorch><anaconda><conda>
2023-01-05 19:00:45
2
6,126
Charlie Parker
75,023,208
6,871,867
In a boolean matrix, what is the best way to make every value adjacent to True/1 to True?
<p>I have a numpy boolean 2d array with True/False. I want to make every adjacent cell of a True value to be True. What's the best/fastest of doing that in python?</p> <p>For Eg:</p> <pre><code>#Initial Matrix 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 #After operation 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 1 1 1 0 0 </code><...
<python><numpy>
2023-01-05 18:59:22
3
462
Gopal Chitalia
75,023,120
1,601,580
why does conda install the pytorch CPU version despite me putting explicitly to download the cuda toolkit version?
<p>I ran:</p> <pre><code>conda install -y -c pytorch -c conda-forge cudatoolkit=11.1 pytorch torchvision torchaudio </code></pre> <p>but I test if cuda is there:</p> <pre><code>(base) brando9~ $ python -c &quot;import torch; print(torch.__version__); print((torch.randn(2, 4).cuda() @ torch.randn(4, 1).cuda()))&quot; 1...
<python><pytorch><anaconda><conda>
2023-01-05 18:51:48
3
6,126
Charlie Parker
75,023,113
7,984,318
Python how to create a new dict by add items to an old dict
<p>I have a dict:</p> <pre><code>d1 = {'name':'William'} </code></pre> <p>Now I want to build another dict that is based on d1:</p> <pre><code>d2 = {'name':'William','age':6} </code></pre> <p>Is there something like:</p> <pre><code>d2 = d1{'age':6} </code></pre> <p>Any friend can help ?</p>
<python><dictionary>
2023-01-05 18:51:13
2
4,094
William
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Python - Nested Singleton Classes
<p>Is it possible to nest an arbitrary number Singleton classes within a Singleton class in Python?</p> <p>There's no problem in changing my approach to solving this issue if a simpler alternative exists. I am just using the &quot;tools in my toolset&quot;, if you will. I'm simulating some larger processes so bear with...
<python><design-patterns><singleton><grpc><grpc-python>
2023-01-05 18:41:31
1
394
wisenickel
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Appending lines to a txt file on github through pygithub
<p>The following accesses the data from a text file on git hub.</p> <pre><code>repoName = 'repo_url' filePath = 'file.txt' from github import Github g = Github(TOKEN) repo = g.get_repo(repoName) file = repo.get_contents(filePath) data = file.decoded_content.decode(&quot;utf-8&quot;) </code></pre> <p>I want to add a ne...
<python><pygithub>
2023-01-05 18:37:13
1
1,993
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