Recent questions tagged Python

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python - Generate random points in 3D space with minimum nearest-neighbor distance

Similar questions: Generating N random points with certain predefined distance between them choose n most distant ... Rectangle with Python See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Fill NA Values in pandas Series with a stop

I'm analyzing a time series, and based on certain criteria, I can pick out rows that are either the ... over these sections without looping? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Evaluate the output from scipy 2D interpolation along a curve

I have data z sampled from a 2D function f at grid points x, y, as in z = f(x, y). It is easy ... of both print statements to be the same. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Understanding matplotlib verts

I'm trying to create custom markers in matplotlib for a scatter plot, where the markers are rectangles with fix ... to do it right? Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - What is the difference between a list of a single iterable `list(x)` vs `[x]`?

Python seems to differentiate between [x] and list(x) when making a list object, where x is an iterable. Why this difference? ... e) >>> l ['a'] See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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157 views

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python - how to collapse columns in pandas on null values?

Suppose I have the following dataframe: pd.DataFrame({'col1': ["a", "a", np.nan, np.nan, np.nan], 'override1': ["b", ... 0 c 1 a 2 b 3 c 4 NaN See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Sorting a list of strings numerically

I have a list of strings with my filenames: flist = ['0.png','10.png', '3.png', '4.png', '100.png'] ... '] Is there a simple way to do this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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583 views

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python - How to get the environment variables of a subprocess after it finishes running?

I'm looking for a way to do this, so that I can pass it to the environment of another subprocess. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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269 views

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python - Sorting a mixed list of ints and strings

I am trying to sort the following mixed list of ints and strings, but getting a TypeError instead. My desired output ... of 'str' and 'int' See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - write escaped character to file so that the character is visible

I want to write "" to a file. Not a "tab character", but literally "". How do I do this? It has been ... " after it has been defined as "". See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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511 views

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python - Plotly: How to retrieve values for major ticks and gridlines?

I'd like to retrieve the x-values highlighted in this plot: The plot is generated in a Jupyter Notebook ... " somewhere else. Any suggestions? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - PyQt: Put scrollbars in this

Here's my class: class ChildFoundDlg(QDialog): #__init__ function: def __init__(self, parent=None): QtGui.QDialog. ... How can I do that? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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206 views

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python - Optimizing performance of Postgresql database writes in Django?

I've got a Django 1.1 app that needs to import data from some big json files on a daily basis. To ... ) translation.save() transaction.commit() See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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378 views

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python - Dictionary with some mandatory keys as function input

I have a function that has a dictionary as an argument. I will pass various dictionaries to it ... , pear=NeedsToBeSpecified)): See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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227 views

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python - Executable called via subprocess.check_output prints on console but result is not returned

On a Windows machine, I'm trying to call an external executable from Python and gather its outputs for further ... I go about doing that? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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195 views

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python - Removing all Emojis from Text

This question has been asked here Python : How to remove all emojis Without a solution, I have as step towards ... we need to get a solution? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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252 views

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python - counting element occurrences in nested lists

This is probably quite a straightforward question, but I can't find an answer elsewhere so I'll ask. What is ... desired output would be b:2 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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169 views

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python - Reading from a plain text file

Say I have the following in a text file: car apple bike book How can I read it and put them into a dictionary or a list? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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152 views

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python - Flask hangs after importing pandas (also numpy, matplotlib etc.)

Why is Flask hanging after importing the pandas lib or several other scientific libs? It still works, when ... loads and nothing happens. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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641 views

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python - pygame error, No video mode has been set

I am just setting up some functions for my game but my script fails to load the image #used variables # x, y ... know what I'm doing wrong? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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399 views

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python - Inverse of numpy's bincount function

Given an array of integer counts c, how can I transform that into an array of integers inds such that np.all(np. ... i,n in enumerate(c)))) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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153 views

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python - Couldn't find WSGI module deploying Heroku

Trying to deploy my app with this tutorial. Have a ModuleNotFoundError: No module named 'radio.wsgi' message. ... ├── runtime.txt └── Procfile See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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172 views

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python regex of a date in some text

How can I find as many date patterns as possible from a text file by python? The date pattern is defined ... two spaces as separators Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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542 views

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python - Parse several XML declarations in a single file by means of lxml.etree.iterparse

I need to parse a file that contains various XML files, i.e., <xml></xml> <xml></xml> .. and so ... solution for this 'problem' exists. Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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360 views

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python - Help with pyHook error

I'm trying to make a global hotkey with pyhook in python that is supposed to work only with the alt key ... work at the first pressed time. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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337 views

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python - Why id function behaves differently with integer and float?

I tried the following code and It gave me different output. >>> foo1 = 4 >>> foo2 = 2+2 >>> id( ... float but same value in case of integers? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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383 views

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python - Custom urllib opener that uses client certificates

I have got an API that I have to work with. The API is secured by HTTPS and uses mutual authentication/ ... understand the error... Cheers. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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192 views

1 answer

python 3.x - What is the executable_path in Google Colaboratory for geckodriver?

I want to use geckodriver in Google Colaboratory with Selenium Python package. Here is what I tried (I'm not ... ? Any help is appreciated. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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