Recent questions tagged Python

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python - Efficiently check if an element occurs at least n times in a list

How to best write a Python function (check_list) to efficiently test if an element (x) occurs at least n ... best efficient approach? Thank you See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How to filter a numpy array using another array's values?

I have two NumPy arrays, e.g.: a = [1,2,3,4,5] and a filter array, e.g.: f = [False, True, False, False, True] ... a[b] array([1, 3, 5, 7, 9]) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Non-lazy evaluation version of map in Python3?

I'm trying to use map in Python3. Here's some code I'm using: import csv data = [ [1], [2], [3 ... iterator into a list?) Any better solutions? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How to select inverse of indexes of a numpy array?

I have a large set of data in which I need to compare the distances of a set of samples from this array with all ... Do I have to create a mask? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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263 views

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python - Rounding to nearest int with numpy.rint() not consistent for .5

numpy's round int doesn't seem to be consistent with how it deals with xxx.5 In [2]: np.rint(1.5) Out[2]: 2.0 ... n+1 for both n = even or odd? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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436 views

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python - `AttributeError: rint` when using numpy.round

I have a numpy array that looks like this: [[41.743617 -87.626839] [41.936943 -87.669838] [41.962665 ... do this efficiently for a large array? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - how to load an image to a grid using pygame, instead of just using a fill color?

I am trying to create a "map of a city" using pygame. I want to be able to put images of buildings in ... pygame, please let me know. Thanks! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - how do you split a string to create nested list?

How would you split a string like '1,55,6,89,2|7,29,44,5,8|767,822,999' on the two delimiters ',' and '|' such ... 44, 5, 8], [767, 822, 999]] See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Using index from iterated list

I'm trying to display values from a different list based on the index that is currently being iterated over ... ve missed any required details. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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243 views

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python - Image.frombuffer with 16-bit image data

If my windows is in 32-bit color depth mode, then the following code gets a nice PIL Image from a ... pretty randomly complicated I know). See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Required widgets for displaying a 1D console application

I am trying to make a 1D console application using Urwid for displaying a user editable application form as shown ... in the standard screen. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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758 views

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python - cooldown for on_message in discord.py

I have made a Leveling system but i can't figure out to make a cooldown in on_message i want to add ... await message.channel.send(embed=embed) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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127 views

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python - Downloading Image Data URIs from Webpages via BeautifulSoup

I need to retrieve an image from a website using Python. However, the image is not in the form of a linked file, ... store it in a .gif file? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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318 views

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python - Arrow annotation in an overcrowded scatterplot matplotlib

I am trying to annotate two points in a scatterplot, however due to the overcrowded nature, they become very difficult ... 16) plt.show() Thanks See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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127 views

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python - Read multiple block of file between start and stop flags

I am trying to read sections of a file into numpy arrays that have similar start and stop flags for the different ... each section to be read? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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582 views

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python - Paramiko error when trying to edit file: "sudo: no tty present and no askpass program specified"

I am using Paramiko to SSH and edit a config file. The file itself needs sudo permissions to edit. This hasn't ... of sudo right after "sudo". See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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391 views

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python - Common elements between two lists with no duplicates

Problem is this, take two lists, say for example these two: a = [1, 1, 2, 3, 5, 8, 13, 21, 34, ... its blatantly obvious, I just cant see it! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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131 views

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python - Best way to extend a list with itself N times

So I have a list [a,b,c] and I want to obtain [a,b,c,a,b,c,...a,b,c]. I can of ... should be independent copies (they are mutable types) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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191 views

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python - Getting a typeError error in django project

I created a virtual environment for my new project, installed django and started the new project. However, whenever i run ... 'db.sqlite3', } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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166 views

1 answer

python - Indexing nested list by a list

given a nested list like >>> m= [[3, 1], [2, 7]] I can get an element like this >>> m[1][0] 2 How can i get the ... q) m[1][0] 2 q) m . 1 0 2 See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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416 views

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python - Matplotlib Plot Dashed Circles (using plt.plot instead of plt.scatter)

Given the following: import matplotlib.pyplot as plt import numpy as np #http://matplotlib.org/api/pyplot_api. ... overcome with plt.scatter. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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297 views

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python - Warnings don't work about unresolved references after using development install

I have a bug with PyCharm, after I use development install pip install -v -e . the IDE does not warn me ... cause I'm failing to realize? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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184 views

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python - Print the sum of a list of integers without using sum()

I have a function defined below that prints each integer in the list, and it works perfectly. What I would like to ... 0 index += n print index See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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200 views

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python - IEDriverServer sends text very slowly using Selenium to the search field

I'm using selenium and python on windows7. My code: import os from selenium import webdriver # get the path of ... in the part commented out)? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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265 views

1 answer

python - How to filter by month, day, year with Pandas

I create the DataFrame with: df = pandas.read_csv("data.csv", sep=';', parse_dates = 1, dayfirst = True) ... would be ideal. Is that possible? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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294 views

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python - Occasional ctypes error importing numpy from mod_wsgi django app

Here's the setup: Django (1.2) app on mod_wsgi that imports ctypes Python 2.6.5 Apache 2.2.3 SELinux ... it? This is really stumping me! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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319 views

1 answer

python - How to split strings inside a list by given delimiter and flatten the sub-strings lists

I have a python script with this list: blocks = [ "item-1", "item-2", "item-3.0;item-3.1;item ... overwriting the other elements in the list? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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222 views

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python - Can I parse dates in different formats?

A collaborator of mine has inconsistent date formatting in their data. 0 13/11/2016 1 21/01/2017 2 22/01 ... I parse dates in different formats? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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