Recent questions tagged Python

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python - AppEngine BlobStore upload failing with a request that works in the Development Environment

I have an AppEngine application that uses the blobstore to store user-provided image data. When I upload images to ... I expect in both cases. 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 - selenium.common.exceptions.WebDriverException: Message: unknown error: unable to discover open pages using ChromeDriver through Selenium

I am a newbie to selenium just trying to learn. When tried opening Chrome browser through ChromeDriver I got ... opened was looking like below: 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 - Generating weighted random numbers

Hi I'm doing some code for a genomics class and I am having difficulty on a certain part. I have a ... are different from theoretical values... 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 - ImportError: matplotlib is required for plotting when the default backend "matplotlib" is selected

I am new to pandas_profiling and getting ImportError while importing it. Please help. import numpy as np import ... pandas-profiling 2.5.3 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 is the Tf-Idf value calculated with analyzer ='char'?

I'm having a problem in understanding how we got the Tf-Idf in the following program: I have tried ... 35127003 0.46836004 0.14321789]] 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 - CompileError when attempting to compile extension type

I'm trying to follow this tutorial on using pyx, pxd, and cimport to create and use extension types. When ... is not a type identifier). 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 - "PACKAGES DO NOT MATCH THE HASHES" error with pip

I'm trying to install packages using pip. In this case for OpenCV. However, I'm unable to install anything ... trying other versions of python. 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 - pickling class method

I have a class whose instances need to format output as instructed by the user. There's a default format, which ... pain to the end user. 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 do a cross-database-query join in SQLAlchemy?

I could not find examples of solutions to this simple query in SQLAlchemy. Can SQLAlchemy replace T-SQL ... +Server?trusted_connection=yes" ) 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 - Read CSV file using Pandas: complex separator

I have a csv file which I want to read using python panda. The header and lines looks the following: A ^B^C^D ... read_csv('input.csv', sep='^') 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 - Vectorized NumPy linspace across multi-dimensional arrays

Say I have 2 numpy 2D arrays, mins, and maxs, that will always be the same dimension as one another. I'd like ... np.linspace(min, max, num=x) 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't install modules 'os' and 'os.path'

I am trying to install 'os' module and 'os.path' module on a red hat machine. I tries following commands. pip ... . Using version python 3.4.3 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 - Handling pointers when wrapping C++ class with Cython

I'm having trouble when handling pointers with cython. The cython implementation of the class holds a pointer ... involving the complete class. See Question&Answers more detail:os...

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

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245 views

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python - pygame.time.set_timer confusion?

So, I have a problem, I don't fully understand the event that is needed to be given to a timer ... spin = nyanmusic(nyansecond,nyanint,spin) 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 - non blocking info dialog in Tkinter

I need a simple info box to display some status output, that I would alternatively dump to the console using print ... my GUI is blocked again. See Question&Answers more detail:os...

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

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436 views

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python - Tkinter international bind

Is there a way in Tkinter to bind a combination of keys that will work in all keyboard layouts? (bind by scancode) ... -с for copy 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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python - pygame.key.get_pressed() is not working

I've read similar questions to this on Stack Overflow but they have not helped. Here is my code: import pygame ... K_ESCAPE], it is always zero. See Question&Answers more detail:os...

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

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261 views

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python - Intercept operator lookup on metaclass

I have a class that need to make some magic with every operator, like __add__, __sub__ and so on. ... attribute lookup from an operator. See Question&Answers more detail:os...

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

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280 views

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python - Find matching words in a list and a string

I am writing some code in Python and I want to check if a list of words is in a long string. I know ... way once the keyword list becomes long. See Question&Answers more detail:os...

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

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264 views

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python - pandas read excel as formatted

how do i get the values of a spreadsheet as they are formatted? im working on spreadsheets with a currency ... ') master=master.append(df) See Question&Answers more detail:os...

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

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315 views

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python - debugging pickle

I'm trying to pickle quite an involved object hierarchy and getting the exception: pickle.PicklingError: Can't ... of the offending function See Question&Answers more detail:os...

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

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517 views

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python - Matplotlib: Getting subplots to fill figure

I would please like suggestions for how to override the default matplotlib behaviour when plotting images as subplots, ... help you can give. See Question&Answers more detail:os...

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

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834 views

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python - Matplotlib Scatter plot change color based on value on list

I'm quite new to matplotlib and i would like to know how we can change color of points on a scatter plot based ... to fit my list of colors ? 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 - pandas styling doesn't display for all rows in large dataframes in Chrome or Edge

Update: The issue seems to be with displaying the HTML with styling rendered by pandas in Google Chrome and ... xlsx', engine='openpyxl') 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 - datetime strptime - set format to ignore trailing part of string

I have a string with variable length and I want to give a format to strptime in order for the rest of the ... to that for user-related issues. 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 - daily data, resample every 3 days, calculate over trailing 5 days efficiently

consider the df tidx = pd.date_range('2012-12-31', periods=11, freq='D') df = pd.DataFrame(dict(A= ... timestamp within the look back period. See Question&Answers more detail:os...

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

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310 views

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python - subprocess.call env var

I'm using Popen because I need the env, like this: Popen( ["boto-rsync", "..."], env={"PATH":" ... Popen from creating a new thread? Thanx See Question&Answers more detail:os...

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

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379 views

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python - Single pcolormesh with more than one colormap using Matplotlib

I'm creating a GUI where there is live 'point in time' data for several records ("things") and ... multiple colormaps for separate fields. See Question&Answers more detail:os...

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

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