Recent questions tagged Python

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I'm new to scipy and matplotlib, and I've been trying to fit functions to data. The first example in the Scipy ... 'r-') plt.show() 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 - How best to convert from azure blob csv format to pandas dataframe while running notebook in azure ml

I have a number of large csv (tab delimited) data stored as azure blobs, and I want to create a ... straight from the blob storage location. 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 - Matplotlib - Drawing a smooth circle in a polar plot

I really like the polar plot of matplotlib and would love to keep working with it (since my data points ... any better with matplotlib? 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 - Find next siblings until a certain one using beautifulsoup

The webpage is something like this: <h2>section1</h2> <p>article</p> <p>article</p> <p>article</p> <h2> ... if I want to get the same result? See Question&Answers more detail:os...

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

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228 views

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python - Using Beautiful Soup to get the full URL in source code

So I was looking at some source code and I came across this bit of code <img src="/gallery/2012- ... url through python or beautiful soup? See Question&Answers more detail:os...

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

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183 views

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python - Sorting a list of dictionaries based on the order of values of another list

I'm using python 2.7.3, and I'm trying to sort a list of dictionaries based on the order of values of ... getting it in the order I want. 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 - Carriage Return not working in IDLE?

I'm trying to create a code for a countdown timer that stays in place: so that each line overwrites ... carriage return seemingly not working? 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 change variables fed into a for loop in list form

I am writing a basic program in Python that prompts the user to enter 5 test scores. The program will then ... that is being passed through. 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 - iterate over GroupBy object in dask

Is it possible to iterate over a dask GroupBy object to get access to the underlying dataframes? I tried: ... except from the apply method? 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 extract the n-th maximum/minimum value in a column of a DataFrame in pandas?

I would like to obtain the n-th minimum or the n-th maximum value from numerical columns in the DataFrame in pandas. ... in column b is also 2. See Question&Answers more detail:os...

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

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179 views

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python - Does creating separate functions instead of one big one slow processing time?

I'm working in the Google App Engine environment and programming in Python. I am creating a function that ... that's "best practice". 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 - Hash a Range of Values

I know that I can hash singular values as keys in a dict. For example, I can hash 5 as one of ... the runtime for generating experimental data. See Question&Answers more detail:os...

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

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184 views

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python - How to find the longest list in a list?

Given a list of lists, the length of the longest list can be found with the following code. values = [['a',' ... list be found, without a loop. See Question&Answers more detail:os...

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

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241 views

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python - How to group a regular expression in re.split() function?

See two examples how re.split() works: >>> re.split(',', 'a,b') ['a', 'b'] but >>> re.split('(, ... using an expression similar to 'xy(a|b)cd'. See Question&Answers more detail:os...

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

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291 views

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python - celery doesn't work with global variable

from celery import Celery app = Celery('tasks', backend='amqp://guest@localhost//', broker='amqp://guest@localhost//') a_num ... () >> r.get() 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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386 views

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python - SQLAlchemy: 'Table' object has no attribute 'id'

I'm a new learner on Python and SQLAlchemy, and I met a curious problem as below. user = Table('users', ... the same error. Why this happened? See Question&Answers more detail:os...

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

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203 views

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python - How to convert DatetimeIndexResampler to DataFrame?

I want to build a matrix from series but before that I have to resample those series. However, to avoid processing ... can I solve this issue? See Question&Answers more detail:os...

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

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357 views

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python - DAGs not clickable on Google Cloud Composer webserver, but working fine on a local Airflow

I'm using Google Cloud Composer (managed Airflow on Google Cloud Platform) with image version composer-0.5.3 ... this self-managed webserver. 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 - os.exec on Windows

I have a script that calls os.execvp into another Python instance. After doing this, I appear to be attached to ... one might see on Linux? 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 - key not found: _PYSPARK_DRIVER_CALLBACK_HOST

I'm trying to run this code: import pyspark from pyspark.sql import SparkSession spark = SparkSession.builder .master ... reason of this 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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242 views

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python - ChromeDriver ERR_SSL_PROTOCOL_ERROR despite --ignore-certificate-errors

I'm trying to run integration tests on a local host (with no HTTPS) using selenium with ChromeDriver ... seeing the ERR_SSL_PROTOCOL_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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374 views

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python - How to turn all numbers in a list into their negative counterparts?

I am trying to turn a list of positive numbers into a list of negative numbers with the same value in python ... and one to be negative. See Question&Answers more detail:os...

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

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313 views

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python - Metaclass not being called in subclasses

Here is a python session. >>> class Z(type): def __new__(cls, name, bases, attrs): print cls print ... happening, (as metaclass are inherited?) See Question&Answers more detail:os...

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

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277 views

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python - Get last three digits of an integer

I wish to change an integer such as 23457689 to 689, 12457245 to 245 etc. I do not require the numbers to be ... can be done in Python 2.7? See Question&Answers more detail:os...

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

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126 views

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python - convert pandas dataframe to json object - pandas

I'm using df.to_json() to convert dataframe to json. But it gives me a json string and not an object. How can I get ... {"test":"w2","param":2}] See Question&Answers more detail:os...

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

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263 views

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python - How to write Russian characters in file?

In console when I'm trying output Russian characters It gives me ??????????????? Who know why? I tried ... so I will don't have 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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376 views

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python - The current URL, app/, didn't match any of these

I'm a newbie in Django and just started looking at it before a day by installing Django 1.10 on my local. ... draw my attention to the gap. See Question&Answers more detail:os...

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

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213 views

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python - How to correctly check if a camera is available?

I am using OpenCV to open and read from several webcams. It all works fine, but I cannot seem to find a way to ... number 'maps' to a valid 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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