Recent questions tagged Python

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python - SQLAlchemy Reflection: How do I query data from specific columns?

Using SQLAlchemy reflection, how do I query for data in specific column? testtable = Table('member', Metadata, ... two of those for efficiency. 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 the mean value using two columns in pandas

I have a deal dataframe with three columns and I have sorted by the type and date, It looks like: type ... the pre_mean_price? 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 - Is it possible to access a local variable in another function?

Goal: Need to use local variable in another function. Is that possible in Python? I would like to use the local variable ... , 1) ('ttttt:', 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 - Having Problems with Arguments

I have tried to write this little script that will batch rename file extensions. I am passing three arguments, ... os.rename(filename, newfile) 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 - Close a tkinter progressbar window while matplotlib window is open

I am writing a program that does some work and uses matplotlib to plot some data. This can take some time so ... root2.destroy() tk.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 - EOFError: Ran out of input

When I run the code below I get this error message "EOFError: Ran out of input" what does it mean?? How it ... to end of list CarFile.close() 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 fix 'object() takes no parameters' error when creating object?

I am trying to run the program from the book Learn Python the Hard Way but it's throwing ... sing_me_a_song() bulls_on_parade.sing_me_a_song() 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 - Grouping a dataframe by X columns

I have a dataframe and I'd like to apply a function to each 2 columns (or 3, it's variable). For example with ... .095332 -1.970319 ... 1.687536 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 - pyqt5 can't apply border to framelesswindow

I applied border width and border color via setStyleSheet funciton in pyqt5. But when I use it in frameless window, ... 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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python - Illegal instruction: 4 when running Django

I made clean install of Django v1.11.10 now. When I run python manage.py runserver everything works fine. ... can connect to Postgres server. 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 - Discord.py - How to make a role specific command?

I need to make a command that can only be executed by someone that has a certain role. I searched around on ... answer but came up with nothing 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 - sort() returns None

Code: import math import time import random class SortClass(object): def sort1(self, l): if len(l)==1: ... ). sort1 is a modified mergesort. 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 - Selenium not using Default Chrome Profile

Selenium will not load my default Chrome Profile and I cannot figure out why. I have tried both Profile ... running Chrome or Chromium process See Question&Answers more detail:os...

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

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596 views

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python - Can't redirect error stream from Cython

The SFML library that I'm trying to cythonize defines this function below that allows to change where errors are ... them into own buffer. 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 tell flask-admin to use alternative representation when displaying Foreign Key Fields?

How can I tell flask-admin to use an alternative representation for Foreign Key Fields such as the following in this RoleUser link table? 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 - Detection of certain pixels of a grayscale image

I have this code that allows you to detect pixels of a vertain value. Right now I'm detecting pixels over ... (pixels_found) number = number+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 - ImportError: cannot import name 'Font' from partially initialized module 'pygame.font' (most likely due to a circular import)

I'm on my Mac M1 playing around with Pygame. What happening is that Pygame isn't allowing me to use the ... pygame.display.flip() pygame.quit() 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 - Running a Windows executable (calc.exe, etc) inside a PyQt Application

I'm trying to run a Windows executable inside my application written in Python using PyQt5. I'm fairly new to ... the following Code is 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 - Installing Poppler utils of version 0.82 in docker

Below is the dockerfile that I am using FROM python:3.6-slim RUN apt update RUN apt install poppler-utils ... of poppler with a python baseimage 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 - Use Selenium to download file by clicking "javascript:__doPostBack('LeaderBoard1$cmdCSV','')"

There are a bunch of CSV files of baseball stats that I want to download via automation, which can be found at: ... that I have not thought of? See Question&Answers more detail:os...

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

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538 views

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python - How do I use a button to switch between two different graphs in matplotlib

I have two different matplotlib graphs that I would like to switch between upon a button press. The code I have ... get it to show the data? See Question&Answers more detail:os...

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

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743 views

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python - How to do colored 2D grid with 3 arrays

I have three arrays of equal length x, y, and z. The x and y arrays are the x-axis and y-axis for ... But I am looking for something like 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 - Comparing two numpy arrays and removing elements

I have been going through several solutions, but I am not able to find a solution I need. I have two numpy ... method to get my final_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 - Sum set of values from pandas dataframe within certain time frame

I have a fairly complicated question. I need to select rows from a data frame within a certain set of start and end ... , I'd love to see 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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690 views

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python - How can i check call arguments if they will change with unittest.mock

One of my classes accumulates values in a list, uses the list as an argument to a method on another object ... to test this kind of behavior? See Question&Answers more detail:os...

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

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919 views

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python 3.x - scikit-lean GridSearchCV n_jobs != 1 freezing

I'm running grid search on random forests and trying to use n_jobs different than one but the kernel ... (X_train_part, y_train_part) 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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804 views

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python - Change the threshold value of the keras RELU activation function

I am trying to change the threshold value of the activation function Relu while building my neural network. So, ... activation='softmax') ]) See Question&Answers more detail:os...

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

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754 views

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python - AttributeError: 'NoneType' object has no attribute '_inbound_nodes' while trying to add multiple keras Dense layers

The input are 3 independent channels of 1000 features. I'm trying to pass each channel through a ... has no attribute '_inbound_nodes' See Question&Answers more detail:os...

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

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