Recent questions tagged PYTHON

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python - PIP install unable to find ffi.h even though it recognizes libffi

I have installed libffi on my Linux server as well as correctly set the PKG_CONFIG_PATH environment variable to the correct ... ffi.h and pip? 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 - Easiest way to run scrapy crawler so it doesn't block the script

The official docs give many ways for running scrapy crawlers from code: import scrapy from scrapy.crawler import ... -blocking, async manner? 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 - Django static Files

I am trying to develop a website with Django following various guides, the documentation and google. I have ... internet. 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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192 views

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python - MySQLdb returns not all arguments converted with "on duplicate key update"

With MySQLdb package in python, I want to insert records with checking some unique keys. The method I used is executemany ... if this is a bug. 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 - Reading each column from csv file

I want to read each column of a csv file and do some modification before storing them into table. I have a csv ... columns in a row. 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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334 views

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python - multiprocessing and GUI updating - Qprocess or multiprocessing?

After reading the literature on QProcesses and the multiprocessing module for python, I am still having trouble creating a ... ()), self.worker) See Question&Answers more detail:os...

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

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507 views

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python 2.7 - Embed a pyplot in a tkinter window and update it

I am trying to write a program that has a pyplot (as in matplotlib.pyplot) within a Tkinter GUI which ... help would 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 - Pandas group by time windows

EDIT: Session generation from log file analysis with pandas seems to be exactly what I was looking for. I have a ... 10:35:30+00:00 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 - Event Sequences, Recurrent Neural Networks, PyBrain

I am trying to predict sales demand using recurrent neural networks. Here https://stackoverflow.com/a/2525149/423805 ... I might have caused. 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 - numpy: split 1D array of chunks separated by nans into a list of the chunks

I have a numpy array with only some values being valid and the rest being nan. example: [nan,nan, 1 , 2 , ... Do you perhaps have a better idea? 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 - Unable to install TA-Lib on Ubuntu

I'm trying to install Python Ta-Lib in Ubuntu,but when I run: pip install TA-Lib I get this error: Command "/usr ... Ta-lib How can I fix 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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335 views

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python - Map an image onto a sphere and plot 3D trajectories

What I would like to do is to define a sphere in the center of my 3D coordinate system (with radius=1), ... do this using matplotlib or mayavi? 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 - Jupyter pandas.DataFrame output table format configuration

Where can I configure Jupyter to make a DataFrame object appear as a full-bordered table by default? Now it looks ... wish it could look like: See Question&Answers more detail:os...

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

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335 views

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python - How to create and fill a list of lists in a for loop

I'm trying to populate a list with a for loop. This is what I have so far: newlist = [] for x in range(10 ... would give me a list of 10 lists. See Question&Answers more detail:os...

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

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512 views

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python - django-allauth: how to modify email confirmation url?

I'm running django on port 8001, while nginx is handling webserver duties on port 80. nginx proxies views ... confirm-email/xxxxxxxx ? 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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722 views

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python - How to identify which button is being pressed on PS4 controller using pygame

I am using a Raspberry Pi 3 to control a robotic vehicle. I have successfully linked my PS4 controller to the RPi ... ("EXITING NOW") j.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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188 views

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python - multiple instances of django on a single domain

I'm looking for a good way to install multiple completely different Django projects on the same server using ... much appreciated. Thanks, Joe See Question&Answers more detail:os...

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

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587 views

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python - Rotated image coordinates after scipy.ndimage.interpolation.rotate?

I have a numpy array for an image that I read in from a FITS file. I rotated it by N degrees ... image rotation using scipy.ndimage.rotate See Question&Answers more detail:os...

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

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391 views

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python - find peaks location in a spectrum numpy

I have a TOF spectrum and I would like to implement an algorithm using python (numpy) that finds all the ... peaks than those shown here. See Question&Answers more detail:os...

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

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167 views

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python - Using Multiple Databases with django

I have to use multiple databases in my project but there is a problem. Model can't see my database. when i ... Value: no such table: accounts See Question&Answers more detail:os...

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

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251 views

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python - Auto-generate form fields for a Form in django

I have some models and I want to generate a multi-selection form from this data. So the ... forms.CheckboxSelectMultiple, label=display_name) See Question&Answers more detail:os...

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

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381 views

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python - Using pandas to read text file with leading whitespace gives a NaN column

I am using pandas.read_csv to read a whitespace delimited file. The file has a variable number of whitespace characters in ... 7.2 1.1 0.9 See Question&Answers more detail:os...

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

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344 views

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python - Pythonic way of iterating over 3D array

I have a 3D array in Python and I need to iterate over all the cubes in the array. That is, for all (x,y,z) in the ... + 1, y + 1, z + 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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234 views

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python - Pandas Dataframe to Nested JSON

I am trying to convert a Pandas Dataframe to a JSON object. My Dataframe contains data in the following ... the required format in Pandas? See Question&Answers more detail:os...

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

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471 views

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python - in Pandas, when using read_csv(), how to assign a NaN to a value that's not the dtype intended?

Note: Please excuse my very low skilled English, feel free to modify the question's title, or the following text to ... here but it didn't 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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411 views

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python - Simple ttk ComboBox demo

This should be very simple but I am really struggling to get it right. All I need is a simple ttk ComboBox ... = App(root) 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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316 views

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python - Generate a dynamic form using flask-wtf and sqlalchemy

I have a webapp that allows users to create their own fields to be rendered in a form later on. I have ... Any help would be very 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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287 views

1 answer

python - Plot pandas data frame with year over year data

I have a data frame in the format value 2000-01-01 1 2000-03-01 2 2000-06-01 15 2000-09-01 3 2000-12-01 7 ... . Is there a pandas way to do 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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