Recent questions tagged Python

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python - argparse with required subcommands

With python's argparse, how do I make a subcommand a required argument? I want to do this because I want argparse ... == '__main__': main() 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 do I test Django QuerySets are equal?

I am trying to test my Django views. This view passes a QuerySet to the template: def merchant_home(request, ... practices, if possible. 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 - Django tests - patch object in all tests

I need to create some kind of MockMixin for my tests. It should include mocks for everything that calls external sources. ... I use it a lot. 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 - StringIO and pandas read_csv

I'm trying to mix StringIO and BytesIO with pandas and struggling with some basic stuff. For example, I can't ... same as reading from a file 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 2.7 - "pip install json" fails on Ubuntu

Cannot install the json module. As far as I know I shouldn't use sudo. what's the matter? pip install json ... in /tmp/pip-build-YkvqVh/json/ See Question&Answers more detail:os...

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

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639 views

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python - Auto adjust font size in seaborn heatmap

when using seaborn heatmap, is there a way to auto-adjust the font size for it to fit exactly inside the squares ... size is set in "annot_kws". 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 - array.shape() giving error tuple not callable

I have a 2D numpy array called results, which contains its own array of data, and I want to go into it and use ... it to be an array using 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 - Why is statistics.mean() so slow?

I compared the performance of the mean function of the statistics module with the simple sum(l)/len(l) method ... .000565 seconds on my machine. 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 Pythonically yield all values from a list?

Suppose I have a list that I wish not to return but to yield values from. What is the most pythonic way to ... doesn't feel pythonic to 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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python 2.7 - ImportError: No module named google.cloud

I am unable to import google.cloud.speech from google.cloud import speech I have installed it using : pip install ... , but its not 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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585 views

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python - AttributeError: Assignment not allowed to composite field "task" in protocol message object

I'm using protocol-buffers python lib to send data,but it's have some problems, so Traceback (most recent ... this line happen the runtime error See Question&Answers more detail:os...

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

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390 views

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python - Length of string in Jinja/Flask

Jinja unfortunately does not support executing arbitrary Python code, such as {% if len(some_var)>1 %} ... {% ... a better way to do 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 - How to chain multiple arguments? i.e. add(1)(2)(3) = 6

I'm trying to create a function that chains results from multiple arguments. def hi(string): print(string)<p> ... cannot find a solution to 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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506 views

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python - How to plot a 2d streamline in 3d view in matplotlib

I need to plot a 2d streamline in 3d view like this. As suggested by the post, I need to extract ... streamline with imshow() is 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 - AttributeError: 'NoneType' object has no attribute 'get_text'

I am parsing HTML text with Telephone = soup.find(itemprop="telephone").get_text() In the case a Telephone number ... how to handle this error? See Question&Answers more detail:os...

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

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302 views

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python - Client-credentials don't work for powerBI REST API

I'm trying to implement the daemon authentication flow. The following post request returns me an access token ... the acquire token 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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306 views

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python - How to save multiple plots in a folder

Here is my program in python and I am trying to save multiple plots in a single folder but it doesn't seem to ... x, y) pylab.show(block=True) See Question&Answers more detail:os...

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

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314 views

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python - Download file via hyperlink in PhantomJS using Selenium

I am using selenium to do a click function on a hyperlink, which is loaded on a certain page. The script works ... at this for hours on end. See Question&Answers more detail:os...

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

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225 views

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python - How to generate new list from variable in a loop?

My actual example is more involved so I boiled the concept down to a simple example: l = [1,2,3,4,5,6,7,8] for ... new list: [10,20,30,40,...] See Question&Answers more detail:os...

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

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278 views

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python - Distributed Training with tf.estimator resulting in more training steps

I am experimenting with distributed training options on Cloud ML Engine and I observing some peculiar results. I have ... that I am observing? See Question&Answers more detail:os...

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

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468 views

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python - SQL-alchemy: ValueError too many values to unpack?

I have a website running with a mysql database using the sql-alchemy package that has suddenly broken. I have ... values to unpack (expected 2) 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 - How to specify Parent-Child relationship within one Model?

For example I have following code: class FamilyMember(models.Model): user = models.OneToOneField(User) And I ... within one model ? See Question&Answers more detail:os...

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

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494 views

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python - what SendMessage to use to send keys directly to another window?

I'm trying to use SendMessage to send keyboard input to another window. I know the drawbacks, but I have to do it ... .WM_KEYUP, ord('A'), 0) See Question&Answers more detail:os...

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

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506 views

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python 3.x - Playing .mp3 files with PyAudio

Can pyaudio play .mp3 files? If yes, may I ask to write an example please. If no, what is the simplest ... not pop-up over all other windows? 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 - HTTPConnection.request not respecting timeout?

I'm trying to use HTTPConnection (2.7.8) to make a request and I've set the timeout to 10 with ... 't happen to all domains. 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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273 views

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python - Intuitive interpolation between unevenly spaced points

I have the following graph that I want to digitize to a high-quality publication grade figure using Python and ... or something? 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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398 views

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python - Using Tensorflow checkpoint to restore model in C++

I've trained a network that I implemented with Tensorflow using Python. In the end, I saved the model with tf. ... is welcome :) 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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250 views

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python 3.x - Plot SVM with Matplotlib?

I have some interesting user data. It gives some information on the timeliness of certain tasks the users were asked ... . How does this 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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