Recent questions tagged Python

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python - Missing mysql.sock; yielding OperationalError: (2002, "Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)")

Firstly, I swear that I have looked at every single question that references this error. Nearly every solution ... approaching it this 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 - Connect QWebEngine to proxy

I created my own proxy to intercept packets on 127.0.0.1:6666, and I want it so all packets sent from QWebEngine gets ... go to 127.0.0.1:6666? 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 - 3D matrix perspective transform

I am using shape from shading to generate a Digital Terrain Model (DTM) of an image taken using a camera mounted ... on 2D versions. 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 - The fastest way to add a new data bar with pyqtgraph

I'd like to refresh a candle graph in the fastest way. But following the modified sample, I've got to ... QtGui.QApplication.instance().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 - How do I use axvfill with a boolean series

I have a boolean time series that I want to use to determine the parts of the plot that should be shaded. ... pass them into axvspan. 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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723 views

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python - Can i use Tornado+ Celery+ RabbitMQ + Redis?

For real time streaming of data on the web, I'm planning to use the Redis as my Cache data layer, ... such integration possible and advisable? 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 - TensorFlow broadcasting

Broadcasting is the process of making arrays with different shapes have compatible shapes for arithmetic operations. In ... to the numpy one? 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 - Replacing RGB values in numpy array by integer is extremely slow

I want to replace the rgb values of a numpy array to single integer representations. My code works ... result = img_array_to_single_val(img_arr) 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 get frequency axis from an fft function?

So, I am probably missing something obvious, but I have searched through lots of tutorials and documentation ... it something else completely? See Question&Answers more detail:os...

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

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575 views

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python - How to inject widgets between QHeaderView and QTableView?

I would like to display widgets between the QHeaderView and the rest of the QTableView, like in the example ... to inject widgets inbetween? See Question&Answers more detail:os...

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

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736 views

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python - passing (new line) on stdout throught sys argument

This is elementary I guess: Let's consider this snippet: for i in range(3): sys.stdout.write(str(i) + ' ') ... can I pass new-line as argument? 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 - Tkinter import filedialog error

I'm trying to use tkinter with python3 to open an image, see here a piece of code : #!/usr/bin/env ... import name filedialog". Any clue ? 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 - Error "Could not find any typelib for Gtk" with Python3 and GTK3

I cannot make Python3 work with GTK3. I'm in a cluster context and I had everything recompiled from the sources. ... : cannot import name 'Gtk' See Question&Answers more detail:os...

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

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585 views

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python - How can I measure the width of a string rendering via tkFont without creating a window first?

I can do the measure of text with tkFont, but I don't want a root window --> tk.Tk() See Question&Answers more detail:os...

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

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705 views

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python - Argparse unit tests: Suppress the help message

I'm writing test cases for argparse implementation. I intend to test '-h' feature. The following code does it. ... to check the numeric 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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807 views

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python - Negative lookahead not working after character range with plus quantifier

I am trying to implement a regex which includes all the strings which have any number of words but cannot be ... //regex101.com/r/DlEmC9/1 See Question&Answers more detail:os...

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

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768 views

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python - Groupby preserve order among groups? In which way?

While answering a question Sort a pandas's dataframe series by month name? we meet some weird behavior of groupby. df = ... and pandas '0.20.3' See Question&Answers more detail:os...

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

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663 views

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python - Tornado "error: [Errno 24] Too many open files" error

I've worked with Tornado quite a bit, but this is the first time I've run into this sort of error. I' ... about 30 seconds of running in siege. See Question&Answers more detail:os...

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

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701 views

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python - Try to start chrome driver on linux with selenium webdriver

I try to find answer and can't, now I ask by myself. I wrote simple test from selenium import webdriver driver = ... UTC 2014 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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931 views

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python - How to make an enemy follow the player in pygame?

I made part of a game. It runs well but I would like to add enemies in my game. So far I add the ... problem? 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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628 views

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python - Array Assignment in numpy / : colon equivalent

I am trying to relate the python/numpy indices of two arrays with different sizes, but I cannot pass index one ... help? Thank you very much See Question&Answers more detail:os...

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

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1.4k views

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python b64decode incorrect padding

I'm sending a file over small UDP packets. (python 3) On the server I divide the file into small pieces and ... for b64decode that I'm missing? 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 - running librosa & numba on raspberry pi 3

I am trying to run librosa on my raspberry pi 3. After hours of searching through the internet I was finally able to ... or tips. 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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808 views

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python - Django cache.set() causing duplicate key error

My Django site recently started throwing errors from my caching code and I can't figure out why... I call: from ... of an UPDATE. Any thoughts? See Question&Answers more detail:os...

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

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543 views

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python - Database Version Control for MySQL

What method do you use to version-control your database? I've committed all our database tables as separate .sql ... taken so many days. 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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668 views

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python - How to write function with variable from the outside?

I hope you can help. I am looking for a way to write a function that inserts one item later. Let me show you ... x? Thanks for your help, guys! See Question&Answers more detail:os...

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

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780 views

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python, set terminal type in pexpect

I have a script which uses pexpect to start a CLI program. It works a bit like a shell where you get a ... the colours? I am using tcsh shell See Question&Answers more detail:os...

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

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669 views

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python - Test if set is a subset, considering the number (multiplicity) of each element in the set

I know I can test if set1 is a subset of set2 with: {'a','b','c'} <= {'a','b','c','d',' ... ) or a way to stay from list comprehensions. 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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