Recent questions tagged python

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python - Count each group sequentially pandas

I have a df that I am grouping by two columns. I want to count each group sequentially. The code below counts ... 4 7 20120405 20120506 10034 5 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 PhotoImage doesn't exist?

from tkinter import * root = Tk() photo = PhotoImage(file='blueface.png') label = Label(root, image=photo) ... png": no such file or directory 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 - remove() returns None when I try to remove a variable from a list

I am working on a part of a program that turns a statement into a question. When I try to remove x ... remove any auxiliary word from question. 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 - Splitting on regex without removing delimiters

So, I would like to split this text into sentences. s = "You! Are you Tom? I am Danny." so I get: ... (.?!) which complicates the problem. 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 access elements of numpy ndarray?

I'm using scipy's loadmat function to load a matlab data file into python. from scipy.io import loadmat data = ... .0 scipy version: 0.17.1 See Question&Answers more detail:os...

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

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python - Why is pip installing Pillow for OS X 10.12, when I have OS X 10.11 installed?

When trying to import PIL (using Pillow), I get the following error: from PIL import ImageTk, Image ... pip installing a problematic version? 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 - Close a tag with no text in lxml

I am trying to output a XML file using Python and lxml However, I notice one thing that if a tag has no text, ... 't know how to search 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 - Browsing context has been discarded using GeckoDriver Firefox through Selenium

I didn't make any changes to my python selenium program and it worked fine 3 days ago. Now when i try to use ... selenium, but it didn't 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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python - Accumulate constant value in Numpy Array

I'm trying to sum +1 to some specific cells of a numpy array but I can't find any way without slow loops: coords = np ... [ 0. 0. 0.]] Any 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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python - Importing PIL, more specifically Image from PIL, isn't working

Here is a description of what I've done. I'm trying to write a program using PIL, but, when trying to import ... it can, and will, be provided. 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 - Merge items on dataframes with duplicate values

So I have a dataframe (or series) where there are always 4 occurrences of each of column 'A', like this: df = pd. ... 18 bar 2 4 19 bar 1 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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python - scatter plot data does not appear on continents in 'hammer' basemap

I am attempting to plot a dataset over the 'hammer' basemap using a scatter plot. However, the data points won ... for anything at this point)? 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 - Flask Interactive Debugger Broken

I'm trying to figure out why the Flask interactive debugger isn't working. My template application is barebones, ... is disabled in 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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256 views

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python - Match keywords in pandas column with another list of elements

I have a pandas dataframe as: word_list ['nuclear','election','usa','baseball'] ['football','united',' ... and add it into pandas column? 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 - Winsorizing data by column in pandas with NaN

I'd like to winsorize several columns of data in a pandas Data Frame. Each column has some NaN, which affects the ... (i.e. not removing rows)? See Question&Answers more detail:os...

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

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288 views

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python - Why does dict have worst case O(n) for so many operations?

How exactly is dict implemented that it has a linear time lookup for collisions? I would assume that it ... chrome&ie=UTF-8&q=python+complexity See Question&Answers more detail:os...

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

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422 views

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python - PySide Signal argument can't be retrieved from QML

I've noticed that QML can receive a signal emitted from Python by using the Connections object. Unfortunately, I can't ... the 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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350 views

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python - How to show only the outline of a bar plot matplotlib

I'm plotting data as a bar plot in matplotlib and am trying to only show the outline of the bars, so that ... t seem to have anything that can. See Question&Answers more detail:os...

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

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399 views

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python - In Django, how do I allow print statements to work with Apache WSGI?

"print" only works in development server. But what if I want it to work in Apache? Just in case I forget to ... errors. (Just print to nothing) See Question&Answers more detail:os...

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

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248 views

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python - Draw text inside pylab figure window

I want to add some more details about the calculations used to create a plot (histogram). How can I add some ... I want in the figure window? See Question&Answers more detail:os...

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

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264 views

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python - How to always round up a XX.5 in numpy

I read that numpy is unbiased in rounding and that it works the way its designed. That "if you always round ... to do it using numpy 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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168 views

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python - matplotlib.animation error - The system cannot find the file specified

When trying to run a simple animation example code in python, I am getting an error which I am not able to ... I hope somebody can 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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202 views

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python - Kivy - base application has strange alignment

I am trying to build a basic Kivy app. After adding the basic elements, and running the app, all of the elements ... here is what I am seeing.. See Question&Answers more detail:os...

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

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250 views

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python - How to preserve column names while importing data using numpy?

I am using the numpy library in Python to import CSV file data into a ndarray as follows: data = np. ... , preferably using some NumPy function? 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 selenium: WebDriverException: Message: chrome not reachable

I am facing the issue with python selenium I entered the code below, it worked well few minutes ago, but now it ... .get('https://google.com') See Question&Answers more detail:os...

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

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599 views

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python - Reverse radial axes of Matplotlib polar plot

I'm trying to create an astronomical polar plot with a radial axis that starts from -45° on outer line and increases ... marker='.') and my plot See Question&Answers more detail:os...

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

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154 views

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python - re.split() gives empty elements in list

please help with this case: m = re.split('([A-Z][a-z]+)', 'PeopleRobots') print (m) Result: ['', ... ''] Why does the list have empty elements? See Question&Answers more detail:os...

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

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290 views

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python - How to add header files in setup.py so dependencies are observed when building the extensions?

The question seems long, but it all comes down to how I can add header files to specific extension specification. ... extension ".h". 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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