Recent questions tagged Python

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python - seaborn heatmap color scheme based on row values

I have a dataframe, reproduced partly as such: import pandas as pd import numpy as np tab = pd.DataFrame(np. ... wise) How to achieve 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 - Porting invRegex.py to Javascript (Node.js)

I have been trying to port invRegex.py to a node.js implementation for a while, but I'm still struggling ... better the problem I am facing. See Question&Answers more detail:os...

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

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420 views

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python - Pandas Dataframe: join items in range based on their geo coordinates (longitude and latitude)

I got a dataframe that contains places with their latitude and longitude. Imagine for example cities. df = pd. ... I just want to learn. 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 - Fastest way to insert object if it doesn't exist with SQLAlchemy

So I'm quite new to SQLAlchemy. I have a model Showing which has about 10,000 rows in the table. Here is ... slow. Any help is much 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 - Combine two lists into one multidimensional list

I would like to merge two lists into one 2d list. list1=["Peter", "Mark", "John"] list2=[1,2,3] into list3=[["Peter",1],["Mark",2],["John",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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python - Installing PyTorch under conda fails with permissions error and Rolling back transaction

I'd like to use PyTorch in a Python program. The instructions for installing it require conda. After ... Windows versions are listed. See Question&Answers more detail:os...

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

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685 views

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python - Stratified samples from Pandas

I have a pandas DataFrame which looks approximately as follows: cli_id | X1 | X2 | X3 | ... | Xn | Y | - ... know how to modify it in this case. 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 find error on slope and intercept using numpy.polyfit

I'm fitting a straight line to some data with numpy.polyfit. The data themselves do not come with any error ... on the best-fit values? 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 - Connecting to MS Access 2007 (.accdb) database using pyodbc

I am on Win7 x64, using Python 2.7.1 x64. I am porting an application I created in VC++ to Python for ... that it's impossible, nothing works. 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 get unstuck from CondaUpgradeError "A newer version of conda is required."?

I attempted to downgrade my conda version. With conda at version 4.6.2, I ran conda install conda=4.5.12 ... conda back in working order again? See Question&Answers more detail:os...

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

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538 views

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python - regex to get all text outside of brackets

I'm trying to grab any text outside of brackets with a regex. Example string Josie Smith [3996 COLLEGE AVENUE, ... number of them in a string. See Question&Answers more detail:os...

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

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467 views

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python - pytest fixture of fixtures

I am currently writing tests for a medium sized library (~300 files). Many classes in this library share the ... way to solve this problems? See Question&Answers more detail:os...

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

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369 views

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python - Why is __getattribute__ not invoked on an implicit __getitem__-invocation?

While trying to wrap arbitrary objects, I came across a problem with dictionaries and lists. Investigating, I ... no attribute '__getitem__' See Question&Answers more detail:os...

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

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271 views

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python resettable instance method memoization decorator

I'm attempting to build a decorator for an instance method of a class that will memoize the result. (This ... welcome and appreciated. 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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595 views

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python - Map value to specific colour in seaborn heatmap

I am plotting a heatmap in Python with the seaborn package. The values I am plotting are discrete, they are ... ) or colour_palette() functions? See Question&Answers more detail:os...

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

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359 views

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python, sorting a list by a key that's a substring of each element

Part of a programme builds this list, [u'1 x Affinity for war', u'1 x Intellect', u'2 x Charisma', u'2 x ... the list (as in 'intellect x 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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310 views

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python - Counting total number of tasks executed in a multiprocessing.Pool during execution

I'd love to give an indication of the current talk in total that we are only. I'm farming work out and ... : ', current.name, current._identity See Question&Answers more detail:os...

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

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363 views

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python - get indices of original text from nltk word_tokenize

I am tokenizing a text using nltk.word_tokenize and I would like to also get the index in the original raw text ... raw indices of the tokens? See Question&Answers more detail:os...

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

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293 views

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python - How to obtain the right alpha value to perfectly blend two images?

I've been trying to blend two images. The current approach I'm taking is, I obtain the coordinates of the ... http://imgur.com/a/9pOsQ See Question&Answers more detail:os...

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 - Pycharm : how-to launch for a standard terminal (to solve an issue with curses)

I'm facing a weird problem. Using Pycharm (please do not troll about this fact), I'm trying to launch a ... ) Thanks for your attention. K. See Question&Answers more detail:os...

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

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369 views

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python - Pygame - Sound delay

I've made a button class that checks if a button is selected (when the mouse is hovering over the button). When ... and can I make it shorter? See Question&Answers more detail:os...

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

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674 views

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python - Django Rest Framework - Post Foreign Key

I am new to Django Rest Framework and checked some tutorials. Now I am trying to create my own structure which is ... am I doing wrong? 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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1.3k views

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python - pymssql.OperationalError: DB-Lib error message 20009, severity 9

I am trying to run this program conn = pymssql.connect(host='localhost', user='notsa', password='notsayly' ... Error 111 - Connection refused See Question&Answers more detail:os...

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

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421 views

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python - Prevent multiple form submissions in Django

I'm looking for a generic way to prevent multiple form submissions. I found this approach which looks ... Any best practice recommendations? See Question&Answers more detail:os...

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

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1.1k views

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python - Import "flask" could not be resolved from source Pylance (reportMissingModuleSource)

When I am writing from flask import Flask One Yellow line is coming up under flask and stating Import "flask" ... unable to resolve the error. See Question&Answers more detail:os...

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

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709 views

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python - Flask-restful - Custom error handling

I want to define custom error handling for a Flask-restful API. The suggested approach in the documentation ... restful error handling instead. See Question&Answers more detail:os...

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

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621 views

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python - filename.whl is not a supported wheel on this platform

I saw the same question but it didn't work for me. pip install PyOpenGL.3.1.1-cp34-cp34m-win_amd64.whl also I ... Python 3.4.0 What is wrong? See Question&Answers more detail:os...

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

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390 views

1 answer

python - Python3 subprocess communicate example

I'm new to subprocessing. I just need a really simple win32 example of communicate() between a parent.py and child ... me. Thanks for you help. See Question&Answers more detail:os...

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

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