Recent questions tagged PYTHON

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python 3.x - How can we plot accuracy and loss graphs from a Keras model saved earlier?

Is there a way to plot accuracy and loss graphs from the CNN model saved earlier? Or can we only plot graphs ... 0) model.save('model.h5') 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 - How can I change the styles of pandas DataFrame headers?

I have the following Python script which generates a HTML table. Now I want to change some styles of the table, but I ... </tr></tbody> </table> See Question&Answers more detail:os...

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

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289 views

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python - Using a custom object in pandas.read_csv()

I am interested in streaming a custom object into a pandas dataframe. According to the documentation, any object ... find some similar approach. 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 - 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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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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456 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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496 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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530 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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296 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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340 views

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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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455 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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320 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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380 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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258 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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297 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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319 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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615 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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433 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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439 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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615 views

1 answer

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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540 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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565 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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299 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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412 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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338 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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361 views

1 answer

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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321 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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