Recent questions tagged python

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python - Assert a function/method was not called using Mock

I'm using the Mock library to test my application, but I want to assert that some function was not called. ... Any ideas how to accomplish 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 - pandas' transform doesn't work sorting groupby output

Another pandas question. Reading Wes Mckinney's excellent book about Data Analysis and Pandas, I encountered the ... explain why it failed? 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: simultaneous plotting in multiple threads

I am trying to do some plotting in parallel to finish large batch jobs quicker. To this end, I start a ... ) Any help is duly 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 - Multiprocessing: use only the physical cores?

I have a function foo which consumes a lot of memory and which I would like to run several instances of in ... avoid confusion, I removed that. 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 - Use sklearn's GridSearchCV with a pipeline, preprocessing just once

I'm using scickit-learn to tune a model hyper-parameters. I'm using a pipeline to have chain the ... the preprocessing while using GridSearchCV? 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 equivalent of COUNT with GROUP BY

I know Django 1.1 has some new aggregation methods. However I couldn't figure out equivalent of the following query: ... I just use plain SQL? 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 - Decreasing the size of cPickle objects

I am running code that creates large objects, containing multiple user-defined classes, which I must then ... make the pickles smaller? 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 Installed but Cannot Launch Navigator

Anaconda (listed as "Python 3.6.0 (Anaconda 4.3.1 64 bit)" ) is in my programs and features list, but there ... 10 laptop, if that is any 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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python - Understanding matplotlib: plt, figure, ax(arr)?

I'm not really new to matplotlib and I'm deeply ashamed to admit I have always used it as a tool for ... all possible API methods and arguments. 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 there a difference between "brew install" and "pip install"?

I want to install pillow on my Mac. I have python 2.7 and python 3.4, both installed with Homebrew. I ... I can tell for pillow with python3? See Question&Answers more detail:os...

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

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491 views

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python - Easy_install and pip broke: pkg_resources.DistributionNotFound: distribute==0.6.36

I was tried to upgrade pip with pip install --upgrade pip on OSX and pip and easy_install both dont work. ... returned non-zero exit status 23 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 - FutureWarning: Conversion of the second argument of issubdtype from `float` to `np.floating` is deprecated

After updating my Numpy and Tensorflow I am getting these kind of warnings. I had already tried these, but nothing ... compiled to use: AVX AVX2 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 - Is there a list of characters that look similar to English letters?

I'm having a crack at profanity filtering for a web forum written in Python. As part of that, I'm attempting ... could use 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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114 views

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python - How to split data into trainset and testset randomly?

I have a large dataset and want to split it into training(50%) and testing set(50%). Say I have 100 ... an array, and choose certain lines. See Question&Answers more detail:os...

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

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508 views

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python - Getting Site Matching Query Does Not Exist Error after creating django admin

I'm going through the standard Django tutorial to create an admin for an app. After commenting the admin related ... help me figure this out? See Question&Answers more detail:os...

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

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357 views

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python - Flask logging - Cannot get it to write to a file

Ok, here's the code where I setup everything: if __name__ == '__main__': app.debug = False applogger = ... here somewhere or what is 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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345 views

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python - Delete unused packages from requirements file

Is there any easy way to delete no-more-using packages from requirements file? I wrote a bash script for this ... 't have this property, yet. See Question&Answers more detail:os...

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

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704 views

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python - Pass multiple parameters to concurrent.futures.Executor.map?

The concurrent.futures.Executor.map takes a variable number of iterables from which the function given is called. How should ... i in args), ) 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 - Appending column totals to a Pandas DataFrame

I have a DataFrame with numerical values. What is the simplest way of appending a row (with a given index value ... the sum of each column? See Question&Answers more detail:os...

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

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127 views

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python - Django form - set label

I have a form that inherits from 2 other forms. In my form, I want to change the label of a field ... each time')) return self.cleaned_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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639 views

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python - Move legend outside figure in seaborn tsplot

I would like to create a time series plot using seaborn.tsplot like in this example from tsplot documentation, but ... using seaborn 0.6-dev. See Question&Answers more detail:os...

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

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204 views

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python - Specifying a mySQL ENUM in a Django model

How do I go about specifying and using an ENUM in a Django 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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588 views

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python - How to join absolute and relative urls?

I have two urls: url1 = "http://127.0.0.1/test1/test2/test3/test5.xml" url2 = "../../test4/test6.xml" How can I get an absolute url for url2? See Question&Answers more detail:os...

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

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322 views

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python - How to use pandas to find consecutive same data in time series

Here is a time series data like this,call it df: 'No' 'Date' 'Value' 0 600000 1999-11-10 1 1 600000 1999-11 ... 2 600001 1999-11-26 1999-11-29 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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756 views

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python - How to remove shadow from scanned images using OpenCV?

I'd like to remove shadow before image binarization using OpenCV. I've tried Otsu Method and adaptive thresholding, ... in advance. ]1 ]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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173 views

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python - Sending custom PyQt signals?

I'm practicing PyQt and (Q)threads by making a simple Twitter client. I have two Qthreads. Main/GUI thread. ... Python that I could understand. See Question&Answers more detail:os...

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

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375 views

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python - Listing serial (COM) ports on Windows?

I'm looking for a robust way to list the available serial (COM) ports on a Windows machine. There's ... [0])) except EnvironmentError: break 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 - How best to parse a simple grammar?

Ok, so I've asked a bunch of smaller questions about this project, but I still don't have much confidence ... way to approach this problem? See Question&Answers more detail:os...

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

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