Recent questions tagged Python

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python - Read image grayscale opencv 3.0.0-dev

I am trying to read images directly as black and white. I recently updated my OpenCv version to 3.0.0-dev, ... constants in my code. Thanks! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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208 views

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python - How do I compare a Unicode string that has different bytes, but the same value?

I'm comparing Unicode strings between JSON objects. They have the same value: a = '人口じんこうに膾炙かいしゃする' b = ... two Unicode strings on their value? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Django error: render_to_response() got an unexpected keyword argument 'context_instance'

After upgrading to Django 1.10, I get the error render_to_response() got an unexpected keyword argument ... keyword argument 'context_instance' See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - scraping a response from a selected option in dropdown list

This is an example of a page that lists baseball stats for a selected player, defaulting to the most recent year ... value="2010">2010</option> See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Display an OpenCV video in tkinter using multiprocessing

I am currently trying to develop a GUI for a multiprocessed OpenCV video stream. The code below does succeed in ... was inspired by this one. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Dynamically updating Tkinter window based on serial data

I'm trying to write a program that gets data from a serial port connection and automatically updates the Tkinter ... ideas? Thanks so much! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Unprotect an Excel file programmatically

We're getting an Excel file from a client that has open protection and Write Reserve protection turned on. ... commands that will work? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - pandas DataFrame how to mix bar and line plots with different scales

I am trying to get pandas to overlay a bar plot and a line plot. The two series have different scales so I want ... =True) ax.legend(loc='best') See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Using selenium webdriver to wait the attribute of element to change value

I have one element with attribute "aria-busy" that changes from true to false when data is in searching and ... raise Exception('wait timeout') See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - In Tensorflow for serving a model, what does the serving input function supposed to do exactly

So, I've been struggling to understand what the main task of a serving_input_fn() is when a trained model is ... .estimator to export my model? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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213 views

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python imaging library - Scrapy: customize Image pipeline with renaming defualt image name

I am using image pipeline to download all the images from different websites. All the images are successfully ... in results: print tuple See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How can I make a file hidden on Windows?

On windows you can right-click a file, click on properties and select hidden. How can I do this to a file in python? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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501 views

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python - Move spines in matplotlib 3d plot?

I'm trying to move the spines in a 3D matplotlib axes object. This seems like a really simple issue, but I have ... y axes don't have z data. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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296 views

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python - Multiprocessing managers and custom classes

I do not know why, but I get this strange error whenever I try to pass to the method of a shared object shared ... --- What's the problem here? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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246 views

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python - Filter a list to only leave objects that occur once

I would like to filter this list, [0, 1, 1, 2, 2] to only leave [0] I'm struggling to do it in ... ' way. Is it possible without nested loops? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Find indices of a value in 2d matrix

I have a matrix of the form, mymatrix=[[1,2,3],[4,5,6],[7,8,9]] I want to the get the ... the same. Optimization, anyone? Thanks in advance. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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256 views

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python - Label in PyQt4 GUI not updating with every loop of FOR loop

I'm having a problem, where I wish to run several command line functions from a python program using a GUI. I don ... () sys.exit(app.exec_()) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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175 views

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python - Pandas Data Frame how to merge columns

I have a pandas dataframe like in the picture. How can I turn it into the table like below. (the ... dataframe from/to excel) Thank you See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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334 views

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python - Aspect ratio in subplots with various y-axes

I would like the following code to produce 4 subplots of the same size with a common aspect ratio between the size ... lengths of x and y-axes. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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233 views

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python - Django F expression on datetime objects

My model is: class Test(): date1 = models.DateTimeField() date2 = models.DateTimeField() I can find out ... difference between date1 and date2? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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530 views

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python - How to convert csv into a dictionary in apache beam dataflow

I would like to read a csv file and write it to BigQuery using apache beam dataflow. In order to do ... .WRITE_TRUNCATE))) p.run() See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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331 views

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python - OperationalError: (OperationalError) (2003, "Can't connect to MySQL server on '192.168.129.139' (111)") None None

I am trying to create a remote database using mysql on an Ubuntu machine running 12.04. It has a root ... ?Any help is greatly appreciated? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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294 views

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python - Writable nested serializer in django-rest-framework?

My design is as following about Django ModelSerializer. There are model A and model B. Model B has a foreign key ... read and write are needed. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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200 views

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python - Why autocompletion options in Spyder 3.1 are not fully working in the Editor?

Running on Mac Sierra, the autocompletion in Spyder (from Anaconda distribution), seems quite erratic. When used ... perfectly in the editor. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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672 views

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python - How to add a background image into pygame?

new to pygame just wondering how i would go about adding a background image into the game itself? this is my ... -= 10 pygame.display.update() See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

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python - How can I make a barplot and a lineplot in the same seaborn plot with different Y axes nicely?

I have two different sets of data with a common index, and I want to represent the first one as a ... this without including the white lines? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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166 views

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python - Getting another program's output as input on the fly

I've two programs I'm using in this way: $ c_program | python_program.py c_program prints something using printf() ... . How can I solve this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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366 views

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python - Insert string at the beginning of each line

How can i insert a string at the beginning of each line in a text file, i have the following code: f = ... that im a complete programming n00b. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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