Recent questions tagged Python

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python - How do I open sub window after I click on button on main screen in PyQt4

HI I am trying to make a simple converter. I have used PyQt4 designed to make the Gui I want to know how ... am new to Python Gui programming. 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 reverse the order of the words in a string

E.g: input: I live in New York output: York New in live I P.S: I have used s[::-1], this just ... incorrect. Kindly help me in writing the code. 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 - system wide shortcut for Mac OS X

So I was asked to port some internal helper applications to Mac OS X 10.7. Works all quite welll as the ... -c solutions are welcome 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 - PyQt5 Access Frames with QmediaPlayer

I am creating a program to play videos and then process them. I am able to play the videos with ... .setMedia(media) self.play_video() 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 - Plotting of 2D data : heatmap with different colormaps

I want to visualize 2D data that I have. For example following is the data with four attributes: att1 att2 att3 fun1 ... make it in Python or R? 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 schedule Scrapy crawl execution programmatically

I want to create a scheduler script to run the same spider multiple times in a sequence. So far I got the ... so any help would be 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 - 400 threads in 20 processes outperform 400 threads in 4 processes while performing an I/O-bound task

Experimental Code Here is the experimental code that can launch a specified number of worker processes and then launch a ... I have only 4 CPUs? 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 - Pandas - Split dataframe into multiple dataframes based on dates?

I have a dataframe with multiple columns along with a date column. The date format is 12/31/15 and I ... data=df_group, return_type='dataframe') See Question&Answers more detail:os...

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

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338 views

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python - Make a Tkinter Toplevel active

I am trying to make a Toplevel widget that is the active window on the screen (I want it so that if you press ... . How can I do this? 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 - Size of numpy strided array/broadcast array in memory?

I'm trying to create efficient broadcast arrays in numpy, e.g. a set of shape=[1000,1000,1000] arrays that ... array or array view in memory? See Question&Answers more detail:os...

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

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652 views

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python - How to completely remove the white space around a scatter plot

I am trying to plot a scatterplot over an image without having any white space around it. If I plot just ... remove the white space definitely? 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 of the integers from 1 to n

I'm trying to write a program to add up number from 1 to n. I've managed to get it to print the numbers ... my_sum) How can I fix this problem? See Question&Answers more detail:os...

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

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178 views

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python - pandas: how to eliminate rows with value ending with a specific character?

I have a pandas DataFrame as follows: mail = DataFrame({'mail' : ['[email protected]', '[email protected]', ' ... mail ends with '@gmail.com'. 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 - Run pyQT GUI main app in seperate Thread

I am trying to add a PyQt GUI console in my already established application. But the PyQt GUI blocks the whole ... process in a threaded form. See Question&Answers more detail:os...

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

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940 views

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python - SDL2 Error: "Unable to load image <default.png>" when freezing kivy application using pyinstaller

I'm unable to produce a working exe with pyinstaller (the name of the app is settings_gui). Runtime error: ( ... .spec file Logs of the build See Question&Answers more detail:os...

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

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272 views

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python pandas: apply a function with arguments to a series. Update

I would like to apply a function with argument to a pandas series: I have found two different solution of SO: ... must be a sequence, not int See Question&Answers more detail:os...

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

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409 views

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python 3.x - How to join two matplotlib figures

I have a script that generates matplotlib figures from data. Those plots are saved to disk as follows: fig, ... that are in different figures? See Question&Answers more detail:os...

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

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152 views

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python - Remove Duplicates from Text File

I want to remove duplicate word from a text file. i have some text file which contain such like following: ... set from the file Thank you See Question&Answers more detail:os...

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

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364 views

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python - Callable object decorator applied to method doesn't get self argument on input

import functools class Decor(object): def __init__(self, func): self.func = func def __call__(self, *args, **kwargs ... .klass)(*args, **kwargs) 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 - Difference between Class variables and Instance variables

I have already read many answers here on Stack Exchange like Python - why use "self" in a class? After ... programming, so please excuse 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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1.0k views

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python - Smooth surface Plot with Pyplot

My question is almost similar to this on: smoothing surface plot from matrix only that my toolset is matplotlib and numpy ... 't get it to work. See Question&Answers more detail:os...

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

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285 views

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python - Understanding negative steps in list slicing

I am trying to understand the following behavior and would welcome any references (especially to official docs) or comments. ... 1] [] is empty. See Question&Answers more detail:os...

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

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177 views

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python - Ordered subsets test

I want to test if an ordered set is a subset of a bigger ordered set. I used tuples and itertools.combinations: ... slow when I test big tuples. See Question&Answers more detail:os...

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

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200 views

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python - Execute multiple .py files at the same time

I have three .py files that I want to run at the same time in a Python script file. I initially called subprocess. ... 'screen', './tester.py']) See Question&Answers more detail:os...

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

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260 views

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python - wx.TextCtrl and wx.Validator

I need to validate the textboxes with wx.Textvalidator. Any please help me to do this? How can i use wx. ... me a sample code for 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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258 views

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python - Distributing integers using weights? How to calculate?

I need to distribute a value based on some weights. For example, if my weights are 1 and 2, then I would ... as they total the original value.) See Question&Answers more detail:os...

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

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187 views

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python - Google Sheets API "update" method Http Error 400

I am trying to make a python script that reads and writes to a google spreadsheet. I've basically copied the python quickstart ... 0, 0, 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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332 views

1 answer

python - Run pdb without stdin/stdout using FIFO

I am developing FUSE filesystem with python. The problem is that after mounting a filesystem I have no access ... I don't understand something) See Question&Answers more detail:os...

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

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