Recent questions tagged Python

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python - When does socket.recv(recv_size) return?

From test, I concluded that in following three cases the socket.recv(recv_size) will return. After the ... official description about #3? 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 - anaconda - path environment variable in windows

I am trying to run python from the windows command prompt (windows 10). So the result is the typical one ... (windows, anaconda). 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 - Debugging Apache/Django/WSGI Bad Request (400) Error

My simple Django app worked fine in debug mode (manage.py runserver), and works under WSGI+Apache on my ... .core.handlers.wsgi.WSGIHandler()) 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 - BeautifulSoup getText from between <p>, not picking up subsequent paragraphs

Firstly, I am a complete newbie when it comes to Python. However, I have written a piece of code to ... Any help would be gratefully received. 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 - classifiers in scikit-learn that handle nan/null

I was wondering if there are classifiers that handle nan/null values in scikit-learn. I thought random forest ... is using a binary tree See Question&Answers more detail:os...

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

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524 views

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python - How can I retrieve the current seed of NumPy's random number generator?

The following imports NumPy and sets the seed. import numpy as np np.random.seed(42) However, I'm not ... the next iteration of a process. 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 - Run code before and after each test in py.test?

I want to run additional setup and teardown checks before and after each test in my test suite. I've looked at ... I want the test to fail. 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 - warnings.warn() vs. logging.warning()

What is the difference between warnings.warn() and logging.warn() in terms of what they do and how they should be used? 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 - Filter zipcodes by proximity in Django with the Spherical Law of Cosines

I'm trying to handle proximity search for a basic store locater in Django. Rather than haul PostGIS around with my ... in a Django model query? 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 - Serialize multiple models and send all in one json response django rest framework

This question is being asked to expand and fill in the holes from this one: Return results from multiple models with ... me find my way home. See Question&Answers more detail:os...

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

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312 views

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python - Calculate point based on distance and direction

I would like to calculate a point based on direction and distance using GeoDjango or GeoPy. For example, If I ... Any help is much 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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python - How to add variables to progress bar in Keras?

I'd like to monitor eg. the learning rate during training in Keras both in the progress bar and in ... existing progress bar callback, no? See Question&Answers more detail:os...

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

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838 views

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python - pandas dataframe: loc vs query performance

I have 2 dataframes in python that I would like to query for data. DF1: 4M records x 3 columns. ... recommendations to improve the query speed? See Question&Answers more detail:os...

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

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220 views

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python - how to combine django plus gevent the basics?

After much searching and googling I am coming back to the well. I have Django 1.4 and am looking for ... things like monkey_patch). 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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189 views

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python - Retrieve email/message body in html using Gmail API

Is there any way to retrieve message body in html form using GMail api ? I have already gone through the message.get ... in my app or GMail ? 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 - Anaconda and Git Bash in Windows - conda: command not found

I've installed Anaconda and set Path environment variable to C:Anaconda3; C:Anaconda3Scripts. Then I try to run in ... would like to know why. See Question&Answers more detail:os...

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

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221 views

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python - Robust Hand Detection via Computer Vision

I am currently working on a system for robust hand detection. The first step is to take a photo of the ... with OpenCV via Python bindings. See Question&Answers more detail:os...

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

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221 views

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python - Pandas dataframe select rows where a list-column contains any of a list of strings

I've got a pandas DataFrame that looks like this: molecule species 0 a [dog] 1 b [horse, pig] 2 c [cat, dog] 3 ... 'pig'], ['chicken','pig']]}) See Question&Answers more detail:os...

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

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175 views

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python - Best way to extract text from a Word doc without using COM/automation?

Is there a reasonable way to extract plain text from a Word file that doesn't depend on COM automation? (This ... 't appear to be available. 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 - Keep Secret Keys Out

One of the causes of the local_settings.py anti-pattern is that putting SECRET_KEY, AWS keys, etc.. values into ... keep all keys as secret? See Question&Answers more detail:os...

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

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344 views

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python - ca-certificates Mac OS X

I need to install offlineimap and mu4e on emacs. Problem is configuration. When I run offlineimap I get : ... to install a certificate ? See Question&Answers more detail:os...

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

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376 views

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python - Faster way to rank rows in subgroups in pandas dataframe

I have a pandas data frame that has is composed of different subgroups. df = pd.DataFrame({ 'id':[1, 2, ... to make a faster ranker function. See Question&Answers more detail:os...

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

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350 views

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python - How to access scrapy settings from item Pipeline

How do I access the scrapy settings in settings.py from the item pipeline. The documentation mentions it can ... the crawler in the pipelines. See Question&Answers more detail:os...

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

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370 views

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python - Setting delete-orphan on SQLAlchemy relationship causes AssertionError: This AttributeImpl is not configured to track parents

this is my Flask-SQLAlchemy Declarative code: from sqlalchemy.ext.associationproxy import association_proxy from my_flask_project ... '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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290 views

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python - What is the format in which Django passwords are stored in the database?

You know how django passwords are stored like this: sha1$a1976$a36cc8cbf81742a8fb52e221aaeab48ed7f58ab4 and that is the " ... else entirely? See Question&Answers more detail:os...

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

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158 views

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python - Check if value from one dataframe exists in another dataframe

I have 2 dataframes. Df1 = pd.DataFrame({'name': ['Marc', 'Jake', 'Sam', 'Brad'] Df2 = pd.DataFrame({'IDs': ... 1 Jake 1 Sam 0 Brad 0 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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200 views

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python - Need to execute a function after returning the response in Flask

For one request alone i need to execute a function after sending the response to the client. Because ... function after returning the request See Question&Answers more detail:os...

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

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305 views

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python - bounding box of numpy array

Suppose you have a 2D numpy array with some random values and surrounding zeros. Example "tilted rectangle": import numpy ... also work in 3D... See Question&Answers more detail:os...

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

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