Recent questions tagged Python

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python - No usable temporary directory found

I am trying to find a temp directory , but when i am trying to get the directory using tempfile.gettempdir() ... directory is 777 owned by root. 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 version of rbind

In R, you can combine two dataframes by sticking the columns of one onto the bottom of the columns of the other ... 'm starting to miss R :( 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 - Is it possible to type hint a lambda function?

Currently, in Python, a function's parameters and return types can be type hinted as follows: def func(var1: ... syntax conflict) why not? See Question&Answers more detail:os...

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

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694 views

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python - How to send OpenCV video footage over ZeroMQ sockets?

I've got a simple webcam which I read out using OpenCV and I'm now trying to send this video footage to ... differently? All tips are welcome! 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 - Bottle.py session with Beaker

first time questioner here. I'm currently struggling on how to use Beaker properly using the Bottle micro-framework. ... app.redirect('/login') See Question&Answers more detail:os...

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

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234 views

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python - using pyodbc on ubuntu to insert a image field on SQL Server

I am using Ubuntu 9.04 I have installed the following package versions: unixodbc and unixodbc-dev: 2.2.11- ... column. Thanks Alex Martelli ! 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 two models from Saver in the same Tensorflow session

I have two networks: a Model which generates output and an Adversary which grades the output. Both have been ... appears to be doing nothing? 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 get current_app for using with reverse in multi-deployable reusable Django application?

I'm writing reusable app. And I want to deploy it several times. Here is urls.py: urlpatterns = ... in django documentation. Thanks, Nick 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 - django,fastcgi: how to manage a long running process?

I have inherited a django+fastcgi application which needs to be modified to perform a lengthy computation (up to ... with very low traffic. See Question&Answers more detail:os...

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

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188 views

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python - Creating form using Generic_inlineformset_factory from the Model Form

I wanted to create a edit form with the help of ModelForm. and my models contain a Generic relation b/w classes, so if ... a great help........ See Question&Answers more detail:os...

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

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182 views

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python - How to markup form fields with <div class='field_type'> in Django

I wasn't able to find a way to identify the type of a field in a django template. My solution was to create a simple ... ="64" /> </div> </div> See Question&Answers more detail:os...

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

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399 views

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python - Get text from popup window

I'm trying to read the text from a popup window. The title is always the same. I've managed to ... .GetWindowText(control) time.sleep(1) See Question&Answers more detail:os...

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

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789 views

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python - Using OpenID/Keycloak with Superset

I want to use keycloak to authenticate my users in our Superset environment. Superset is using flask-openid, as ... settings I should be using? 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 - How to update DjangoItem in Scrapy

I've been working with Scrapy but run into a bit of a problem. DjangoItem has a save method to persist ... update items if they already exist? 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 - ValueError: Number of features of the model must match the input

I'm getting this error when trying to predict using a model I built in scikit learn. I know that ... greatly appreciated! Thanks in advance! See Question&Answers more detail:os...

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

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517 views

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python - Fitting a curve to a power-law distribution with curve_fit does not work

I am trying to find a curve fitting my data that visually seem to have a power law distribution. I hoped ... function has reached maxfev = 800. 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 - Opencv Live Stream from camera in Django Webpage

I am making a project in Django. And I want to show live feed from camera on a webpage. But I am not sure on ... 'base.html', {'video': resp}) See Question&Answers more detail:os...

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

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191 views

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python - Computer Vision: Masking a human hand

I'd like to detect my hand from a live video stream and create a mask of my hand. However I'm reaching ... here's a sample picture from above: See Question&Answers more detail:os...

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

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601 views

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python - Fast interpolation over 3D array

I have a 3D array that I need to interpolate over one axis (the last dimension). Let's say y.shape = (nx, ... want to do it by hand in Cython. See Question&Answers more detail:os...

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

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259 views

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python - http request with timeout, maximum size and connection pooling

I'm looking for a way in Python (2.7) to do HTTP requests with 3 requirements: timeout (for reliability) ... large') content = ctt.getvalue() See Question&Answers more detail:os...

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

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465 views

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python - Fast numpy fancy indexing

My code for slicing a numpy array (via fancy indexing) is very slow. It is currently a bottleneck in program. ... the transpose of this result) See Question&Answers more detail:os...

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

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454 views

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python - Does anyone have example code for a sqlite pipeline in Scrapy?

I am looking for some example code of a SQLite pipeline in Scrapy. I know there is no built in support for it ... the code as a starting point. See Question&Answers more detail:os...

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

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427 views

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python - Using pyhook to respond to key combination (not just single keystrokes)?

I've been looking around but I can't find an example of how to use pyhook to respond to key combinations ... Windows XP. Any help 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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341 views

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python - Efficiently create a density plot for high-density regions, points for sparse regions

I need to make a plot that functions like a density plot for high-density regions on the plot, but below some ... how to speed this up? 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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294 views

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python - Django backup strategy with dumpdata and migrations

As in this question, I set up a dumpdata-based backup system for my database. The setup is akin to ... cluttering up the migrations directory. See Question&Answers more detail:os...

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

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224 views

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python - Writing a class decorator that applies a decorator to all methods

I'm trying to write a class decorator that applies a decorator to all the class' methods: import inspect def ... obj.bar() MyClass.bar() See Question&Answers more detail:os...

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

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209 views

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python - How do I create an OpenCV image from a PIL image?

I want to do some image processing with OpenCV (in Python), but I have to start with a PIL Image object, so I ... am not sure what it should be. See Question&Answers more detail:os...

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

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406 views

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python - GeoDjango on Windows: Try setting GDAL_LIBRARY_PATH in your settings

I've done this a dozen times before, but something isn't working this time.. Following the docs: https://docs. ... kind of an emergency for me. See Question&Answers more detail:os...

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

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