Recent questions tagged Python

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python - LSTM having a systematic offset between predictions and ground truth

Currently i think i'm experiencing a systematic offset in a LSTM model, between the predictions and the ground truth ... set for x < ~430: See Question&Answers more detail:os...

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

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801 views

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python - How to change audio playback speed using Pydub?

I am new learner of audio editing libs - Pydub. I want to change some audio files' playback speed using ... without changing the audio quality.) See Question&Answers more detail:os...

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

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453 views

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python - How to include a custom filter in a Keras based CNN?

I am working on a fuzzy convolution filter for CNNs. I have the function ready - it takes in the 2D ... update the kernel with every iteration? See Question&Answers more detail:os...

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

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423 views

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python - Suds Error: BadStatusLine in httplib

I am using suds 0.3.6. When creating a suds client, I randomly get an error: httplib.py, _read_status(), line ... and how can I fix it? 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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301 views

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python - Better way to script USB device mount in Linux

I'm writing a python module for a device that interacts with a user supplied USB memory stick. The user can ... Thanks, sorry about the novel. See Question&Answers more detail:os...

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

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326 views

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python - Group together arbitrary date objects that are within a time range of each other

I want to split the calendar into two-week intervals starting at 2008-May-5, or any arbitrary starting point. So I ... 1), 'Some data here') 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 - Pandas: create timestamp from 3 columns: Month, Day, Hour

I'm using Python 2.7, panda 0.14.1-2, numpy 1.8.1-1. I have to use Python 2.7 because I'm coupling it ... pd.to_timedelta(df['Hour'], unit="h") See Question&Answers more detail:os...

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

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438 views

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python - django-registration-redux add extra field

7 and python 2.7. i want to add extra field in django registration. i try to extend with my model like this ... syntax with my ulr.py? 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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208 views

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python - Catch "before/after function call" events for all functions in class

Is there any possibility to catch "before/after function call" events for all functions in class, without ... other function were finished. See Question&Answers more detail:os...

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

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299 views

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python - library for representing 3D polyhedra

Are there any libraries that provide 3D polyhedra, and support calculating the intersection of two polyhedra? If it ... from any given angle See Question&Answers more detail:os...

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

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295 views

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python - Numpy object array of numerical arrays

I want to create an array with dtype=np.object, where each element is an array with a numerical type, e.g int ... any ideas how to avoid 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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308 views

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python - PHP - Parse ini file and access single values

In Python you can parse an .ini file and access the single values like this: myini.ini [STRINGS] mystring = ... not able to find any examples. See Question&Answers more detail:os...

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

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355 views

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python - numba guvectorize target='parallel' slower than target='cpu'

I've been attempting to optimize a piece of python code that involves large multi-dimensional array calculations. I ... and numexpr hits ~300%. See Question&Answers more detail:os...

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

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382 views

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python - How to properly pass a scipy.sparse CSR matrix to a cython function?

I need to pass a scipy.sparse CSR matrix to a cython function. How do I specify the type, as one would for a numpy array? See Question&Answers more detail:os...

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

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300 views

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python - How to pan and zoom properly in 2D?

All I want to do is create a really simple pan and zoom feature in 2D with OpenGL through pyglet. As you can see, ... run it App(500, 500).run() See Question&Answers more detail:os...

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

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408 views

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python 3.x - How to draw a triangle using matplotlib.pyplot based on 3 dots (x,y) in 2D?

I would like to draw a triangle using python3 module matplotlib. import numpy as np import matplotlib.pyplot ... suggestions are 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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536 views

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python - Xpath vs DOM vs BeautifulSoup vs lxml vs other Which is the fastest approach to parse a webpage?

I know how to parse a page using Python. My question is which is the fastest method of all parsing techniques, ... the find method of 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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419 views

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python - Django: Adding inline formset rows without javascript

This post relates to this: Add row to inlines dynamically in django admin Is there a way to achive adding inline ... add 1 to the post data. See Question&Answers more detail:os...

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

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334 views

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python - How to find the distance between two concentric contours, for different angles?

I have an image with two contours, where one contour is always 'inside' another. I want to find the distance ... an example image: Thank you! See Question&Answers more detail:os...

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

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622 views

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python - OPENCV: Calibratecamera 2 reprojection error and custom computed one not agree

I have a python script that uses the calibratecamera2 method to calibrate a camera from a few views of a ... reprojection error: 0.438696960449 See Question&Answers more detail:os...

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

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309 views

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python - Add/subtract dataframes with different column labels

I'm trying to add/subtract two dataframes with different column labels. Is it possible to do this without ... to keep the original labels. See Question&Answers more detail:os...

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

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365 views

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python - Pandas - Convert columns to new rows after groupby

I have a pandas dataframe. I need to convert some of the columns into rows. The dataframe has same data in the first ... ]) but it doesn't work. See Question&Answers more detail:os...

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

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332 views

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python - Django's Querydict bizarre behavior: bunches POST dictionary into a single key

I'm experiencing a really bizarre behavior when using the test client in django. I'm using a POST ... server creates QueryDict within QueryDict See Question&Answers more detail:os...

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

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311 views

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python - Scraping with Scrapy and Selenium

I have a scrapy spider which crawls a site that reloads content via javascript on the page. In order to move to ... other data ... # yield item See Question&Answers more detail:os...

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

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267 views

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python - fitting a circle to a binary image

I have been using skim age's thresholding algorithms to get some binary mask. For example, I obtain binary ... radius will describe the circle. See Question&Answers more detail:os...

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

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459 views

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python - Access superclass' property setter in subclass

I have a SuperClass which defines a property and it's setter, like so: class A(object): def __init__(self): self ... not seeing it right now :/ See Question&Answers more detail:os...

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

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243 views

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python - Accessing the name that an object being created is assigned to

I'm writing some code to determine the name that an object is assigned to. This is for general debugging work ... the 'python-internals' tag. See Question&Answers more detail:os...

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

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452 views

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python - f1_score metric in lightgbm

I want to train a lgb model with custom metric : f1_score with weighted average. I went through the advanced ... and f1_score is returned.? See Question&Answers more detail:os...

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

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