Recent questions tagged Python

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python - Error during pip install -Please check proxy URL

I have installed anaconda on my machine with python 3.7, pip version 19.0.3 I am trying pip install from ... and could be missing the host. 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 - Why does it say that no module named tkinter?

Good day. I installed pyhton 2 and python 3 in my laptop. And i'm using python 3 interpreter in writing my ... Can some one help me please? 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 - dynamic attribute within class

I have situation where (pseudo code): class MyClass: def __init___(self): self.varA = [zza, b, c] self.varB = ... def ? How can I approach it ? 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 - Using sublists to create new lists where numbers don't repeat

Given a list: g = [[0, 7], [1, 2, 10, 19], [3, 4, 5, 6, 15, 21, 24, 27], [0, 7, 8, 9, 12, 17], [1, ... 5, 6, 15, 16, 21, 22, 24, 27], [25, 14]] 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 - Why pyplot(matplotlib) is joining points randomly?

Why is pyplot joining points randomly when I run this code? def plot_date_value(single_data_frame): date_axis_data ... be greatly 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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python - Reverse for 'news_detail' with arguments '('',)' not found. 1 pattern(s) tried: ['news\-(?P<news_pk>[0-9]+)$']

This issue only happens in production environment ,in my local development environment it works well. Template error: In ... image"> </a> 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 - Scale rows of 3D-tensor

I have an n-by-3-by-3 numpy array A and an n-by-3 numpy array B. I'd now like to multiply every row ... this be done without the loop 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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python - I am getting a NameError: name 'n' is not defined

This function asks the name def printName(): print("Enter your name: ") n=input() printName() The if statement ... ) else: print("Try 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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python - Can't insert Date and Time to sql server via pyodbc

I'm trying to insert date and time to SQL server in Linux (raspbian) environment using python language.So far ... me please. thanks in advance 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 deal with xmlns values while parsing an XML file?

I have the following toy example of an XML file. I have thousands of these. I have difficulty parsing this file ... is deep down the tag 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 - Understanding set comparison

So, my problem is to understand comparison between lists. I had a homework to compare if some string has all the ... help me, thanks a lot! 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 - How to make a loop in discord.py rewrite?

The bot must do something every 60 seconds. I tried to use create_task, but it does not work(the bot started ... . How can this be implemented? 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 - progressbar finishes before set maximum amount

I am trying to display downloaded images in tkinter Progressbar, It is working but the progressbar finishes way ... pack() root.mainloop() 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 does plt.show() know what to show?

My question is not about matplotlib in detail, but a general programming and question, and i'm looking ... statement handled by interpreter? 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 - calculate length of list recursively

If you have a list = [1,2,3,4,5] how would you recursively calculate the length of that list without using len ... in list. How would I do that? See Question&Answers more detail:os...

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

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289 views

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python - Moving matplotlib xticklabels by pixel value

How can I move tick labels by a few pixels? In my case, I want to move the This is class #N-labels on ... be the same as number of categories. 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 - Print all even numbers in a list until a given number

I am just beginning to dabble in Python, and have started to go through the chapters on learnpython.org. In the 'Loops' ... x if x == 237: break 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 - Why does this solution fail? Nested and matching brackets

I am still failing tests for "negative_match: invalid structures,"; "simple_grouped: simple grouped positive and negative ... -1 return 1 pass 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 from "For-loops" to "While-loops"

I've approached this question that I'm struggling to solve. It's asking me to convert the code from "for-loops" ... answer is a bit far away. 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 3.2 how to pass data in variables between functions

How would I store and pass the contents of r from main into two? It will print r if I make it r = something ... else: print (r) main() two() 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 - Are random numbers generated using a quantum integer as its seed considered pseudo-random or truly random?

I always hear that random numbers produced by quantum computers are considered "truly random" while random numbers ... "truly random" ? See Question&Answers more detail:os...

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

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615 views

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python - How to install discord.py-rewrite dependency on Heroku for Discord bot hosting?

I'm trying to deploy my discord.py bot on Heroku using my GitHub master branch, but have been unable to do ... . Any help is much 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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python - cmd pip displaying errors whenever I try to install pygame

I am on a windows 10 system, and I recently installed the latest version of python python 3.7.0. I enable the ... me and thank you in advance. 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 - Problem with calculating line intersections

I am trying to display the points of intersecting lines, but the calculated points are between the actual ... actual points of intersection. 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 - Compare multiple pandas columns (1st and 2nd, after 3rd and 4rth, after etc) with vectorization (better) or other method

This code compares based on condition the var1 and var2 and creates Results1 based on choices (this code works ... performance) or other method? See Question&Answers more detail:os...

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

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455 views

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python - Tkinter Frame container color not visible

Why can't I see a red frame with the following code? import Tkinter root = Tkinter.Tk() root.geometry( ... widget_button.pack() root.mainloop() 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 - Change proxy in chromedriver for scraping purposes

I'm scraping Bet365, probably one of the most tricky websites I've encountered, with selenium and Chrome. The ... (or better, surely) approach? 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 - Incorrect/inconsistent results from zgeev() LAPACK

I am attempting to use ZGEEV to calculate eigenvalues and eigenvectors, however am having some trouble with the ... 0.33780187 0.99291988]] See Question&Answers more detail:os...

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

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