Recent questions tagged Python

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python - How do I print colored text in IDLE's terminal?

This is very easily a duplicate question--because it is. However, there are very many inadequate answers to this (e ... , only on the terminal.) 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 - AttributeError: partially initialized module 'turtle' has no attribute 'Turtle' (most likely due to a circular import)

Does anybody have any idea why this code doesn't work? import turtle test = turtle.Turtle() test.color("orange") test ... (100) I use python 3.8 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 do Numpy.all() and any() give wrong results if you use generator expressions?

Working with somebody else's code I stumbled across this gotcha. So what is the explanation for numpy's behavior? ... list contains only item 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 - PyGame Collision?

How do I find collisions between characters and images within PyGame? I have drawn a player from an image, ... would I detect these collisions? 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 - What is the best way to show data in a table in Tkinter?

I have written a program which takes data from a text file and displays it in a table style format. Data from ... column = 1) scores.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 - Removing tmp file after return HttpResponse in django

I'm using the following django/python code to stream a file to the browser: wrapper = FileWrapper(file(path)) ... well from the same request. 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 use sprite groups in pygame

So I've gotten to the point in my program where I need to create a group for some sprites that the player can ... with an 'if sprite in group'? 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 pytesser

I'm new to python and would like to install and use the pytesser OCR library. All of the other modules that ... been working fine. Thanks, Tom 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 do I use `setrlimit` to limit memory usage? RLIMIT_AS kills too soon; RLIMIT_DATA, RLIMIT_RSS, RLIMIT_STACK kill not at all

I'm trying to use setrlimit to limit my memory usage on a Linux system, in order to stop my process from ... print(numpy.__version__)" 1.11.1 See Question&Answers more detail:os...

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

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228 views

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python - Flask can't find app file

In Step 2 of the official Flask tutorial, Flask cannot find my app file because it's looking in ../venv/Scripts ... 2] No such file or directory 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 - Error: type object 'Keys' has no attribute 'chord'

I am getting below error while executing selenium code. Code: driver.find_element_by_id(PlaylistManagerLocators. ... "Auto_Folder5763") 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 socket programming OSError: [WinError 10038] an operation was attempted on something that is not a socket

I am working on this code from socket import * HOST = 'localhost' PORT = 21567 BUFSIZ = 1024 ADDR = (HOST, ... on something that is not a socket 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 return multiple values from *args?

I have a hello function and it takes n arguments (see below code). def hello(*args): # return values I want to ... ') Just return list. :) :D See Question&Answers more detail:os...

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

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236 views

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python - Datetime objects with pandas mean function

I am new to programming so I apologize in advance if this question does not make any sens. I noticed that when ... I am grateful for any hints. See Question&Answers more detail:os...

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

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497 views

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python - Resampling pandas dataframe is deleting column

Val ts year doy interpolat region_id 2000-02-18 NaN 950832000 2000 49 NaN 19987 2000-03-05 NaN 952214400 2000 ... /dp76hk6yfs6c1og/test.csv?dl=0 See Question&Answers more detail:os...

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

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416 views

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python - Django migrate error : TypeError expected string or bytes-like object

I'm trying to learn django and error occur in changing models. I tried a lot like default=datetime.datetime.now ... like object Please help me!! See Question&Answers more detail:os...

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

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291 views

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python - Can you assign variables in a lambda?

I was using a lambda statement to perform math, and happened to repeatedly use one certain value. Therefore I was ... a 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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222 views

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python - Add header to CSV without loading CSV

Is there a way to add a header row to a CSV without loading the CSV into memory in python? I have ... memory, which is obviously unfeasible. See Question&Answers more detail:os...

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

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410 views

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python - Pandas Vectorized Date Offset Operations with Vector of Differing Offsets

I am trying to do the following but is seems that vectorized operations in this mode are not supported. ... seconds Clearly numpy much faster 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

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python - Skip rows with missing values in read_csv

I have a very large csv which I need to read in. To make this fast and save RAM usage I am using ... choose during the reading of 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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254 views

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python - Why does PyYAML use generators to construct objects?

I've been reading the PyYAML source code to try to understand how to define a proper constructor function that I can ... (3.12) of PyYAML. See Question&Answers more detail:os...

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

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144 views

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python - Bar graph from dataframe groupby

import pandas as pd import numpy as np import matplotlib.pyplot as plt df = pd.read_csv("arrests.csv") df = df. ... ,23.0 Pittsburgh,25.0 Pittsburgh,52.0 Pittsburgh,31.0 Pittsbu...

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

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528 views

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python - Animation using matplotlib with subplots and ArtistAnimation

I am working on an image analysis and I want to create an animation of the final results that includes the ... connected' in some way. Adrian See Question&Answers more detail:os...

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

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234 views

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python - Replace all the occurrences of specific words

Suppose that I have the following sentence: bean likes to sell his beans and I want to replace all occurrences of ... know how to do 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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316 views

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python - Why is not 'decimal.Decimal(1)' an instance of 'numbers.Real'?

I try to check if a variable is an instance of a number of any type (int, float, Fraction, Decimal, etc.). ... (1), Real) would return False? See Question&Answers more detail:os...

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

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729 views

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python - Celery and SQLAlchemy - This result object does not return rows. It has been closed automatically

I have a celery project connected to a MySQL databases. One of the tables is defined like this: class ... advise to skip these difficulties? See Question&Answers more detail:os...

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

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395 views

1 answer

python - WebDriverException: Message: The command 'GET /session/7.../displayed' was not found while Explicit Wait with safaridriver and Selenium 3.13.0

I am using explicit wait like below to check if element is clickable. WebDriverWait(driver, 30).until( ... displayed' was not found. See Question&Answers more detail:os...

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

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887 views

1 answer

python - How to fix "TypeError: unsupported operand type(s) for +: 'NoneType' and 'str'"?

I am unsure why I am getting this error count=int(input ("How many donuts do you have?")) if count <= 10: ... : print ("Number of donuts: many") See Question&Answers more detail:os...

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

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