Recent questions tagged Python

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python - How to derive equation from Numpy's polyfit?

Given an array of x and y values, the following code will calculate a regression curve for these data points ... actual equation for this curve? 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 - saved_model.prune() in TF2.0

I am trying to prune nodes of a SavedModel that was generated with tf.keras. The pruning script is as follows: ... a TF2.0 Keras SavedModel? 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 - Pyopenssl to verify the file signature

I want to verify the downloaded file's signature and cert using pyopenssl, but the documentation is not ... python, most preferably pyopenssl 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 - Loading model generated by AutoML with Tensorflow raises "Op type not registered 'ParseExampleV2"

So basically I am trying to load a model trained using AutoML's Tables with tensorflow. Once a model is ... why this could be happening? 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 - Background image cleaning for OCR

Through tesseract-OCR I am trying to extract text from the following images with a red background. I have ... ? The image without boxes: 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 sort dataframe2 according to dataframe1 with fuzzywuzzy

I know this is old question in fact i have seen many links related to my question: Using fuzzywuzzy to create ... and none of that are working. 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 - Unable to update Tkinter matplotlib graph with buttons and custom data

I'm working on creating a program that utilizes Tkinter and matplotlib. I have 2 lists of lists (one for x-axis ... = App(root) root.mainloop() 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 return data from a CherryPy BackgroundTask running as fast as possible

I'm building a web service for iterative batch processing of data using CherryPy. The ideal workflow is as ... within the framework though. 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 - Firefox started by Selenium ignores the display created by pyvirtualdisplay

I start a display with pyvirtualdisplay before creating my WebDriver instance. If I use Chrome, it works without ... useless FirefoxBinary()). 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 - Read PST files from win32 or pypff

I want to read PST files using Python. I've found 2 libraries win32 and pypff Using win32 we can initiate a ... , pypff or any other library? 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 - Howto: workaround of close_fds=True and redirect stdout/stderr on windows

I had a problem: using Python 2.7, it was not possible to create a subprocess using subprocess.Popen([ ... stdin/stdout/stderr Answer below 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 - Memory Issues Using Keras Convolutional Network

I am very new to ML using Big Data and I have played with Keras generic convolutional examples for the dog/cat ... that I need to utilize? 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 - Create an LSTM layer with Attention in Keras for multi-label text classification neural network

Greetings dear members of the community. I am creating a neural network to predict a multi-label y. Specifically ... to my question. The first approach proposed by @MarcoCerlian...

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

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python - How to encrypt a string using the key

I have a 'public key' in a variable named varkey, for getting the public key I used the urllib and stored ... could lead me to some library. See Question&Answers more detail:os...

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

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527 views

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python - Continuity issue when applying an IIR filter on successive time-frames

I would like to apply a FIR or IIR filter (example: lowpass filter) on successive blocks/time-frames of 1024 ... surely must be an easier way. 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 - Scrapy CrawlSpider Crawls Nothing

I am trying to crawl Booking.Com. The spider opens and closes without opening and crawling the url.[Output ... .Request(url, self.parse_reviews) 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 - AttributeError: module ‘xgboost’ has no attribute ‘XGBRegressor’

I am trying to run xgboost using spyder and python, but I keep getting this error: AttributeError: module xgboost' ... ) How do I solve 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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python - Match rows of two 2D arrays and get a row indices map using numpy

Suppose you have two 2D arrays A and B, and you want to check, where a row of A is contained in B. How ... d like to do this using numpy only. 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 use SyntaxNet output to operate an executive command ,for example save a file in a folder, on Linux system

having downloaded and trained SyntaxNet, I am trying to write a program that can open new/existed files, for example ... I can do about it. 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 - Convert an h264 byte string to OpenCV images

In Python, how do I convert an h264 byte string to images OpenCV can read, only keeping the latest image? Long ... a stream as an OpenCV image. See Question&Answers more detail:os...

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

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522 views

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python - i-th element of k-th permutation

Is there a fast algorithm to compute the i-th element (0 <= i < n) of the k-th ... ca/~ruskey/Publications/RankPerm/MyrvoldRuskey.pdf 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 - Widget to Display subprocess stdout?

I have a python based tkinter script which executes some commands using subprocess module. I need to display the ... widget you have mentioned. See Question&Answers more detail:os...

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

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585 views

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python - Matplotlib Basemap animation

I'm using basemap to plot some points on a map, and I want to add any kind of animation to it. It could ... 'ro', markersize=4) plt.show() 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 - matplotlib color map - predefine mappings to values?

I have an array that I am viewing using imshow(). (imsave() really, but the process should be identical). I ... by mapping these to a dict? 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 - Most efficient method to get key for a value in a dict

I have a dictionary of objects: dic = {'k1':obj1, 'k2':obj2, 'k3':obj3, ...} class MyObject: def __init__(self ... , I am a newbie in 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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529 views

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python - Creating a dictionary from 2 lists with duplicate keys

Though I have seen versions of my issue whereby a dictionary was created from two lists (one list with the keys, ... some help from this forum. See Question&Answers more detail:os...

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

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872 views

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python - Uploading file via Paramiko SFTP not working

I am using the below Python code to upload a file via SFTP using Paramiko. The connection "seems" to be ... out, check connection succeeded etc? See Question&Answers more detail:os...

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

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598 views

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python - Need help using M2Crypto.Engine to access USB Token

I am using M2Crypto-0.20.2. I want to use engine_pkcs11 from the OpenSC project and the Aladdin PKI client ... . Any help would be 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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