Recent questions tagged python

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python - Computing jacobian matrix in Tensorflow

I want to calculate Jacobian matrix by Tensorflow. What I have: def compute_grads(fn, vars, data_num): ... function compute_grads. 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 - QTableWidget Integer

I am trying to insert and display integers in my QTableWidget. They don't display. It works if I ... 0x1e904a80 Any insight is 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 - How can I draw inside existing QGraphicsVIew?

just like the title says i'm trying to draw inside an existing QGraphicsView. The window I generated using QT ... seem to figure it out. 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 create a dynamic view on OpenERP

I need a help to create a dynamic view. Let me explain: I have Form1 and Form2 views. Form1 contains ... the expression as I explained above? 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 do I do with a spotify api authentication redirect uri in Django?

I've built an app in Django that uses Spotipy, a Spotify API Python Library, and uses the spotipy.util ... ://static.echonest.com/SortYourMusic/ 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 - Multiplying and then summing values from two dictionaries (prices, stock)

I need to multiply the values from each key and then add all the values together to print a single number. I know this ... ": 32, "pear": 15 } 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 - ColumnTransformer with TfidfVectorizer produces "empty vocabulary" error

I am running a very simple experiment with ColumnTransformer with an intent to transform an array of columns, ["a"] ... how to correct for 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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python - Compare similarity of terms/expressions using NLTK?

I'm trying to compare terms/expressions which would (or not) be semantically related - these are not full sentences, ... on how to tackle 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 - No module named _imagingft

I have this problem: No module named _imagingft I have installed PIL, but it still does not work. I use ... module for Django Simple Captcha. 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 - Combinations without using "itertools.combinations"

What I'd need is to create combinations for two elements a time. If a list contains: seq = ['A', 'B', 'C'] ... append(seq[i:i+1]+p) return perms 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 - Cx_freeze ImportError no module named scipy

Good day all, I am having trouble using cx_Freeze on a code I am working on converting to a .exe. ... no difference. Kind regards, Jonnyishman 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 - Algorithm to solve for water accumulation given building heights

I am practicing algorithms, and I have been stuck on this problem for a few days. When I test ... total_water += local_water print total_water 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 - Install a package into multiple/all conda environments?

I'm using conda to run tests against different versions of python, numpy, etc., but there are some common ... to specify each by hand? See Question&Answers more detail:os...

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

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522 views

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python - Unzip zip files in folders and subfolders

I try to unzip 150 zip files. All the zip files as different names, and they all spread in one big folder ... advance for any help on 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 - Move a tkinter canvas with Mouse

I would like to move a whole tkinter Canvas with Mouse Click (hold) + Motion of the mouse. I tried with ... Motion>", callback) 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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146 views

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python - Store versioned history of Field in a Django model

I have a model with a text field, that needs to be versioned. class Book(models.Model): title = models.CharField ... model How should i 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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python - Is there anything I need aware of using Tkinter and pygame together?

I am using pygame to write a program and I need some GUI configuration text field and button for control. I' ... this? Are there any pitfalls? See Question&Answers more detail:os...

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

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461 views

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python 3.x - Combining rows with overlapping time periods in a pandas dataframe

I am researching prescription habits and have large dataframes of sold products. I am trying to transform ... this be done iteratively? See Question&Answers more detail:os...

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

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256 views

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python - How can I represent this regex to not get a "bad character range" error?

Is there a better way to do this? $ python Python 2.7.9 (default, Jul 16 2015, 14:54:10 ... expression sre_constants.error: bad character range 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 - Execute task every so often within a process

I want to execute a task every 2 hours. Python has a Timer in Threading module, but does it meet my needs ... I generate a proper Timer myself? See Question&Answers more detail:os...

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

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376 views

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python - Displaying true-colour 2D RGB textures in a 3D plot?

I'm trying to make a 3D plot that consists of a series of 2D planes through an RGB stack, like this: I ... libraries that will do the job. 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 - Problems reading CSV file with commas and characters in pandas

I am trying to read a csv file using pandas and the file has a column called Tags which consist of user ... reading the csv file into 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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python - Pyinstaller ; ModuleNotFoundError: No module named 'sklearn.utils._cython_blas'

I have this import list for my python project: import pandas as pd import time import sqlalchemy from sklearn. ... to the hidden imports part? See Question&Answers more detail:os...

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

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157 views

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python - installing paramiko on Windows

This may sound like a repeated question on SF, but I could not find a clear answer to it, yet.So. ... the way of installation thats problematic? See Question&Answers more detail:os...

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

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216 views

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python - Programmatically check if domains are DNSSEC protected

As the title says I want to programmatically check if a DNS response for a domain are protected with DNSSEC ... , sorry for the confusion See Question&Answers more detail:os...

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

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355 views

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python - Deploying Django to Heroku (Psycopg2 Error)

So I'm following the getting started guide from heroku with django. However when I run this command: heroku run ... the same error. What gives? See Question&Answers more detail:os...

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

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209 views

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python - What are the differences between a cpdef and a cdef wrapped in a def?

In the Cython docs there is an example where they give two ways of writing a C/Python hybrid method. An ... that the other method lacks? See Question&Answers more detail:os...

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

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208 views

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python - Scrapy on a schedule

Getting Scrapy to run on a schedule is driving me around the Twist(ed). I thought the below test code would work, ... l.start(3) reactor.run() See Question&Answers more detail:os...

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

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