Recent questions tagged Python

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python - "WindowsError: exception: access violation..." - ctypes question

Here is the prototype for a C function that resides in a DLL: extern "C" void__stdcall__declspec(dllexport) ... event, thanks again all! 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 - Concatenate range arrays given start, stop numbers in a vectorized way - NumPy

I have two matrices of interest, the first is a "bag of words" matrix, with two columns: the document ID and the term ... 13, 14, 15, 16, 17]) 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 - Extracting Text Between HTML Comments with BeautifulSoup

Using Python 3 and BeautifulSoup 4, I would like to be able to extract text from an HTML page that only ... help would be 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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python - How do I make a list of all members in a discord server using discord.py?

I am writing a discord bot and I came across this error when trying to pull all the members from a server with ... I can have for further use? 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 - AttributeError: 'module' object has no attribute 'cbook'

I am trying to run a simple code and I have all the dependencies for matplotlib and numpy installed in my Canopy. Still ... 8.0.2-1.win64-py2.7 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 - Most efficient way to sum huge 2D NumPy array, grouped by ID column?

I have a massive data array (500k rows) that looks like: id value score 1 20 20 1 10 30 1 15 0 2 12 ... there any more efficient way to do 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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python - Flask isn't getting the checkbox value

I am trying to print off the checkbox value in Flask when I hit the submit button. app.py snippet: @app.route(' ... ') That also returns 'None'. 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 - condense pyqtproperties

I'm writing a script in Python and have a bit of a problem: class LightDMUser(QObject): def __init__(self, user ... a way to condense this code? 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 to remove or hide y-axis ticklabels from a matplotlib / seaborn plot

I made a plot that looks like this I want to turn off the ticklabels along the y axis. And to do that I am ... look better. How do I do that? 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 - Enumerating all paths in a tree

I was wondering how to best implement a tree data structure to be able to enumerate paths of all levels. ... of a traversal. Any suggestions? See Question&Answers more detail:os...

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

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320 views

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python - Reducing pandas series with multiple nan values to a set gives multiple nan values

I'm expecting to get set([nan,0,1]) but I get set([nan, 0.0, nan, 1.0]): >>> import numpy as np >>> import ... ) >>> set(l) set([nan, 0, 1]) 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 - lxml: DLL load failed: The specified module could not be found

I have Windows Server 2008 R2 x64. It has running Python27 x86 + Django 1.3 + apache 2.2 x86 under wsgi. ... can I resolve this issue? 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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python - Grouping a list of integers with nearest values

I have a list: d = [23, 67, 110, 25, 69, 24, 102, 109] how can I group nearest values with a dynamic gap, and ... ), (67, 69), (102, 109, 110)] 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 3.x - How to set the background color of a ttk.Combobox

I have a problem to set background color for Combobox using tkinter ttk with 'vista' theme (I'm using Python 3 ... color if state is 'readonly'. 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 - Create dictionary where keys are variable names

I quite regularly want to create a dictionary where keys are variable names. For example if I have variables a and b I want ... {"a":a, "b":b} 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 - Get file path from askopenfilename function in Tkinter

I am writing a script to automate changing a particular set of text in one file into a particular set in ... to remove the extraneous bits? See Question&Answers more detail:os...

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

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449 views

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python 3.x - WebDriverException: Message: TypeError: rect is undefined

I am trying to automate the download of data from a website with a python script using selenium but I get the ... ! Thanks a lot 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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161 views

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python overloading operators

I need to implement a DNA class which has attribute a sequence which consists of a string of characters from the ... instead of True... Why? 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 - Unable to convert PostgreSQL text column to bytea

In my application I am using a postgresql database table with a "text" column to store pickled python objects. As ... c)<=127 in the string. See Question&Answers more detail:os...

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

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133 views

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python - backref class attribute

How to initialize backrefs of mappers without some queries through a session? For example, I have two models, ... make such "warming" queries! See Question&Answers more detail:os...

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

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269 views

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python - Windows 10 and pip upgrading - Access denied

I have done a fresh Windows 10 install, installed python, cygwin and a improved console called ConEmu. After installing ... :/ Someone an idea? See Question&Answers more detail:os...

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

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523 views

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python - When writing carriage return to a pycharm console the whole line is deleted?

I have a program in Python that makes extensive use of the line feed character to produce the effect of an ... console when running this script. See Question&Answers more detail:os...

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

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427 views

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python - cv2.videocapture.read() does not return a numpy array

I have this code trying to capture a frame from my webcam on raspberry pi, and saving it as an image. I use ... numpy array What is wrong 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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python - What is the correct way to solve this circular import error with a Flask blueprint?

I had a problem with a circular import, so I moved my blueprint import below my app definition. However, I'm still ... - models.py |-- views.py See Question&Answers more detail:os...

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

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337 views

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python - Configure query/command timeout with sqlalchemy create_engine?

The following Python code snippet illustrates the issue: print("starting") # I am trying to configure a query ... complete. Got result_proxy") See Question&Answers more detail:os...

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

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259 views

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python - How to write to CSV and not overwrite past text

The code below is what I have so far. When it writes to the .csv it overwrites what I had previously written ... "__main__": main("learner.csv") See Question&Answers more detail:os...

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

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377 views

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python - NumPy or SciPy to calculate weighted median

I'm trying to automate a process that JMP does (Analyze->Distribution, entering column A as the "Y value ... ) nmassArr = nCreateArr.transpose() See Question&Answers more detail:os...

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

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567 views

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python - JSONDecodeError using Google Translate API with Python3

I've searched thoroughly on Stack Overflow but couldn't find an answer to this problem. I'm trying to use the ... (char 0) Can anybody help? See Question&Answers more detail:os...

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

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