Recent questions tagged Python

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python - Masking diagonal to a specific value with PyTorch tensors

How do I fill the diagonal with a value in torch? In numpy you can do: a = np.zeros((3, 3), ... answer here or in the PyTorch documentation. 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 performance dealing with binary files

I'm trying to convert a YCbCr-file from 8 bpp to 10 bpp. My best approach so far is still order of ... ; fclose(fd_out); return EXIT_SUCCESS; } 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 - Defaultdict of a Class - Get index/key of current called instance inside a class

Yep! I know you cannot understand by the title. Take for example the below code. class Room(object): def ... is 'something' which is called! 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 - Can not squeeze dim[1], expected a dimension of 1, got 2

I have very simple input: Points, and I am trying to classify whether they are in some region or not. So my ... [{{node metrics/acc/Squeeze}}]] 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 stream stdout/stderr from a child process using asyncio, and obtain its exit code after?

Under Python 3.4 on Windows, I need to stream data written to stdout/stderr by a child process, i.e. receive ... afterwards. How can I 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 3.x - pandas.errors.ParserError: ',' expected after '"'

I am trying to read this dataset from Kaggle: Amazon sales rank data for print and kindle books The file ... and pandas 0.24.1. See Question&Answers more detail:os...

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

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python - How can I select the good colors from an image with OpenCV and mask?

I'm trying to select the green color in an image using OpenCV (the method to do it comes from this website. The ... : So the mask did not 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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python - django post_save call from within sending Model?

I have a pretty simple model that works: class Badge(models.Model): name = models.CharField(max_length=16, help_text ... is the fix? 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 - Convert Julian dates to normal dates in a dataframe?

I have a date column in a pandas DF with Julian dates. How can I convert these Julian dates to mm-dd-yyyy ... dd-yyyy Please help me with 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 - Multiple invocation of the same subcommand in a single command line

I'm trying to figure out how to use argparser to do the following: $ python test.py executeBuild --name ... the extra options and iterate thru. 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 - Django view not rendering after Ajax redirect

The main page of my website has multiple buttons at the top. Whenever one of these buttons is pushed, a get ... ])) return HttpResponse('') See Question&Answers more detail:os...

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

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609 views

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python - How to make cmd correctly display arabic script?

I am running windows 7 and using a python script that outputs some strings in arabic to windows cmd. This ... cmd show arabic strings correctly? See Question&Answers more detail:os...

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

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720 views

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python - Side-specific padding for matplotlib text bbox

Is it possible to specify the padding on a specific side of the bbox when adding text in matplotlib? I'm adding a ... .axis('off') plt.show() See Question&Answers more detail:os...

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

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637 views

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python - calculating distance between two numpy arrays

I was interested in calculating various spatial distances between two numpy arrays (x and y). http://docs.scipy.org/doc/ ... ,42],...and so on. See Question&Answers more detail:os...

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

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359 views

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python - Spark dataframe not adding columns with null values

I am trying to create a new column by adding two existing columns in my dataframe. Original dataframe ... help would be 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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296 views

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python - Best practices for seeding random and numpy.random in the same program

In order to make random simulations we run reproducible later, my colleagues and I often explicitly seed the random ... about in code review? See Question&Answers more detail:os...

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

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403 views

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python - Sorting in pyqt tablewidget

How can I sort a coloumn in pyqt by the highest number? Currently I have setSortingEnabled(True) and that only sorts ... == '__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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398 views

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python - How to create dictionary from two lists without losing duplicate values?

I have two lists: pin_list = ['in0', 'in1', 'in2', 'y'] delvt_list = ['0.399', '0.1995', '0.1995' ... in would it be easier with sets or lists? See Question&Answers more detail:os...

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

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563 views

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python - how to change the mouse pointer color tkinter?

is there a way to change the mouse color in Tkinter? I have a dark background and the mouse never shows over the Tkinter window. See Question&Answers more detail:os...

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

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355 views

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python - Printing specific items out of a list

I'm wondering how to print specific items from a list e.g. given: li = [1,2,3,4] I want to print just the ... would work but it hasn't so far. See Question&Answers more detail:os...

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

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343 views

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python - Using Django Multiple Databases with RedShift

I am trying to use an Django multiple database configuration with MYSQL as my default database and redshift as my ... and psycopg2==2.6.1 See Question&Answers more detail:os...

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

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564 views

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python - How to render a Matplotlib plot in a Django web application?

I'm reading the book Matplotlib for Python Developers but am struggling to follow the example in the section " ... of a chirped sinusoid). See Question&Answers more detail:os...

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

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552 views

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python - How to split based on multiple delimiter pandas

I have a df column which contains Phone number 12399422/930201021 5451354;546325642 789888744,656313214 123456654 I would ... you for your 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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414 views

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python 3.x - How can I use an operator to compose functions?

It's fairly straightforward to write a function that composes two other functions. (For simplicity, assume they are one ... x): return x + 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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464 views

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python - django - Error loading MySQLdb module: No module named MySQLdb

I'm using Django 1.4.1 with Active Python 2.7 on Win7. I have installed the MySQL module using pypm ... .CookieStorage" How is this possible? See Question&Answers more detail:os...

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

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858 views

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python - Plot multiple confusion matrices with plot_confusion_matrix

I am using plot_confusion_matrix from sklearn.metrics. I want to represent those confusion matrices next to each other ... could I 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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497 views

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python - How to move a sprite according to an angle in Pygame

I'm having trouble with moving sprites. I can move them in the x and y axis with no problem at all. What ... . not in the specified direction... See Question&Answers more detail:os...

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

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335 views

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python - Drawing in PyGobject (python3)

I'm trying to write simple graphic editor using PyGObject and python 3. I need to draw lines with different ... is not my native language. See Question&Answers more detail:os...

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

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