Recent questions tagged Python

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python - Generate a 2D boolean array from tuples

How can I generate a 2D boolean array using a list of tuples that shows the indices of the True values? For ... for this, without the loops. See Question&Answers more detail:os...

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

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262 views

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python - How to determine which widget emitted the signal

I want to make QlineEdit fields double-clickable, so that a user's double-clicking on a QlineEdit field (e.g., ' ... field's name is 'qle01'." 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 2.7 - counting the amount of True/False values in a pandas row

Is there a way in pandas to calculate how many True or False conditions are there in a column. eg: If a data frame has 5 ... 5 8 8 c 6 2 5 5 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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420 views

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python - SQLAlchemy, array_agg, and matching an input list

I am attempting to use SQLAlchemy more fully, rather than just falling back to pure SQL at the first sign of ... problem in some other way? 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 - Recursive method to find the minimum number in a list of numbers

Given this sample list: [5, 3, 9, 10, 8, 2, 7] How to find the minimum number using recursion? The answer is ... . Can any one show me a path? 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 - Self-referencing lists

Say you do the following: a = [1] a[0] = a You end up with a as equal to [[...]]. What's going on here? ... referring to a's end up as [[...]]? See Question&Answers more detail:os...

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

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784 views

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python - Plotly: How to specify colors for a group using go.Bar?

How to use plotly.graph_objs to plot pandas data in a similar way to plotly.express - specifically to color ... quick_plot(df) full_plot(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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363 views

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python - Unexpected behavior of numpy.fft.fft with high precision numbers

I have the following code...Note the two lines under # generate sine curve. One uses a higher precision value ... this. Anyone have any ideas? 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 - Numpy : The truth value of an array with more than one element is ambiguous

I am really confused on why this error is showing up. Here is my code: import numpy as np x = np.array([ ... correct syntax using any()all()? 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 - How do I get a list of all members in a discord server using the new discord.py version?

I recently updated my discord.py and it seems some of my older commands are wrong. I need to loop through all ... anymore. Thank you for 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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594 views

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python - map a hexagonal grid in matplotlib

I'm wanting to draw a figure with a hexagonal grid. The end result should look like a honeycomb. However, I' ... ax.autoscale_view() 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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433 views

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python - The fullscreen mode in pygame is entirely black

I have some issues with the fullscreen option of pygame. Here is some code that simply draws a blue window ... have to restart the computer. See Question&Answers more detail:os...

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

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198 views

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python - Trying to make sections of sprite change colour, but whole sprite changes instead

I have a few sprites in my game that need specific parts to be able to change colour. My process I am ... the shield is supposed to be green See Question&Answers more detail:os...

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

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353 views

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python - On Mac OS X, easy_install fabric and/or easy_install pycrypto fails due to linker error "illegal text-relocation"

When trying to easy_installfabric (or easy_installpycrypto, which fabric depends on), I got the following linker error ... with exit status 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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345 views

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python - Buildozer Build failed: Couldn't find executable for CC

I run the command --buildozer android debug , because i wan to create a apk file to my phone,but after i ... help will be appreciated , 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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153 views

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python - Why is this regular expression not working ({m, n})?

Trying to understand regular expressions and I am on the repetitions part: {m, n}. I have this code: >>> ... the pattern. Why is this 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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388 views

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python - Permanently delete sprite from memory Pygame

I want to delete a sprite permanently from the memory once an event occurs. Using self.kill() doesn't help as ... , it gets deleted as well. See Question&Answers more detail:os...

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

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158 views

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python - Check if string contains any list element

So I am doing a for loop of a list. Every single string, I want to .find, but instead of .find one item ... my checkforlist) == -1: do action See Question&Answers more detail:os...

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

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760 views

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python - Error during: CREATE EXTENSION plpython3u; on PostgreSQL 9.6.0

I have installed PostgreSQL Server 9.6.0 and Python 3.4.2 on Windows 2012 R2 Server. I copied plpython3. ... this Python 3 extension? 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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300 views

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python - ImportError: No module named 'pandas' (inside virtualenv)

I created a virtual environment named quora for python. I installed wheel and then pandas as instructed. I cant ... No module named 'pandas' See Question&Answers more detail:os...

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

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134 views

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python - Printing Unicode Char inside a List

a = ['Mxc3xa3e'] b = 'Mxc3xa3e' print a print b results: ['Mxc3xa3e'] M?e How can I print a like: ['M?e'] See Question&Answers more detail:os...

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

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548 views

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python - Kivy ScrollView - Not Scrolling

Looks like a common problem people have with Kivy. I've already checked other questions for the same problem here ... if I understood it right. See Question&Answers more detail:os...

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

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125 views

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python - What the error when I close the dialog

I'm just learning PyQt and I have a small application that seems to work ok unit I hit the X in the upper right ... show() sys.exit(app.exec_()) See Question&Answers more detail:os...

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

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215 views

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python - How to improve code clarity in nested try-except-else clauses?

Sometimes I have a cascade of different things I can try to accomplish a task, e. g. If I need to get ... the piling-up nesting and indenting? 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

1 answer

python - Create a column in a dataframe that is a string of characters summarizing data in other columns

I have a dataframe like this where the columns are the scores of some metrics: A B C D 4 3 3 1 2 5 2 ... an easier and correct way to 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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580 views

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python - ImproperlyConfigured('SQLite 3.8.3 or later is required (found %s).' % Database.sqlite_version)

ImproperlyConfigured('SQLite 3.8.3 or later is required (found %s).' % Database.sqlite_version) django.core. ... in the container env. See Question&Answers more detail:os...

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

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765 views

1 answer

python - How to access ODBC Driver on Azure App service

I'm trying to run a Django (3.0) app on Azure App Service in Linux, connected to an Azure SQL ... deploying source code directly from Github. See Question&Answers more detail:os...

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

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283 views

1 answer

python - Find monotonic sequences in a list?

I'm new in Python but basically I want to create sub-groups of element from the list with a double loop, ... and start to compare with 58. See Question&Answers more detail:os...

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

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