Recent questions tagged Python

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python - How to create all combinations column wise for multiple variables in pandas?

For a given range for n variables. I have taken n=3 as an example. A : [1,3] B: [5,10,12] C: [100, ... 100 100 100 100 113 113 113 113 113 113 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 sound effect inside an audio file

I have a load of 3 hour MP3 files, and every ~15 minutes a distinct 1 second sound effect is played, ... cause this to take considerably longer. 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 - Overriding other __rmul__ with your class's __mul__

In Python, is it possible for your class's __rmul__ method to override another class's __mul__ method, without ... that cannot be modified. 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 use sklearn when target variable is a proportion

There are standard ways of predicting proportions such as logistic regression (without thresholding) and beta ... the sklearn framework. 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 - Getting all descendants of a parent from a pandas dataframe parent child table

I have a Pandas dataframe containing parent ids and child ids. I need help building an updated dataframe listing ... child_id for each row. TIA 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 - BeautifulSoup: Extract img alt data

I have following image html and I am trying to parse information that is in alt. Currently I am able to ... name when I extract the image. 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 - Extracting XML into data frame with parent attribute as column title

I have thousands of XML files that I will be processing, and they have a similar format, but different parent ... ) ndata = DataFrame(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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python - Getting a legend in a seaborn FacetGrid heatmap plot

How can we get legends for seaborn FacetGrid heatmaps? The .add_legend() method isn't working for me. Using ... fontweight='bold', fontsize=18) 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 - Resampling a time series of events + duration into concurrent events

I have two columns; the time an event started and the duration of that event. Like so: time, duration 1:22:51,41 1:56: ... 1 3:00:00,1 3:30:00,2 See Question&Answers more detail:os...

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

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python - DataFrame algebra in Pandas

Say I have two dataframes df1 df2 that I can join on df1_keys and df2_keys. I would like to do: (A-B) ... reference for SQL (from this thread): 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 add additional data to Django messages?

I'm trying to integrate this snippet into our Django project: It's just custom HTML and CSS for messages. The ... to use messages if possible. See Question&Answers more detail:os...

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

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321 views

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python - Getting non-contiguous text with lxml / ElementTree

Suppose I have this sort of HTML from which I need to select "text2" using lxml / ElementTree: <div>text1< ... first text chunk from an element? 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 - PySpark explode stringified array of dictionaries into rows

I have a pyspark dataframe with StringType column (edges), which contains a list of dictionaries (see example below). ... using Spark 2.4.0. 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

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python - How to create a single executable file in windows 10 with scrapy and pyinstaller?

I have created a scrapy spider and successfully converted to windows executable using pyinstaller with disc folder. ... shows the scrapy 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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241 views

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python - Passing a numpy array to a tensorflow Queue

I have a NumPy array and would like to read it in TensorFlow's code using a Queue. I would like ... Tensorflow without writing your own Queue? See Question&Answers more detail:os...

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

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356 views

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python - How to clear cache for specific model in NDB

I am in the process of transitioning to the NDB, and I am using two model sets: one based in plain old google. ... in the model based on old db? See Question&Answers more detail:os...

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

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570 views

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python - Setting a cell's fill RGB color with pywin32 in excel?

I'm avoiding using any other set of modules. What I am trying to do is set a cell's color ... library/system.drawing.colortranslator.toole.aspx See Question&Answers more detail:os...

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

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597 views

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python - Interpolating time series in Pandas using Cubic spline

I would like to fill gaps in a column in my DataFrame using a cubic spline. If I were to export to a ... to use this function inside 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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607 views

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python - How can I use the output from tkFileDialog.askdirectory to fill a tkinter Entry box

I have a tkinter Entry box in which the user can insert a path to the directory. Alternatively the user can ... , "Directory") 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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302 views

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python - pyqt drawing on an exsiting widget of GUI

I am new to pyqt. I am doing a program that allows you clicks on the picture and remember the coordinates of points ... () sys.exit(app.exec_()) See Question&Answers more detail:os...

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

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269 views

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python - How to return value from exec in function?

I try: def test(w,sli): s = "'{0}'{1}".format(w,sli) exec(s) return s print test("TEST12344","[ ... 2] How to return value from exec in 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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336 views

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python - Get selected item in listbox and call another function storing the selected for it

I have a canvas that calls createCategoryMeny(x) when it is clicked. This function just creates a Toplevel() ... understand what it is saying. See Question&Answers more detail:os...

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

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564 views

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python - IOPub Error on Google Colaboratory in Jupyter Notebook

I understand that the below command jupyter notebook --NotebookApp.iopub_data_rate_limit=1.0e10 would let me set the ... and the accuracy. See Question&Answers more detail:os...

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

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653 views

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python - How to calculate 3D distance (including altitude) between two points in GeoDjango

Prologue: This is a question arising often in SO: 3d distance calculations with GeoDjango Calculating distance between ... between my points? 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 - Count how many times a dictionary value is found with more than one key

I'm working in python. Is there a way to count how many times values in a dictionary are found with more ... bacteria is found in three keys. 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 - Matplotlib Legend Guide basic examples

I am trying to understand how to use the legend() better, specifically how to use proxy artists. I find the ... me totally different results... See Question&Answers more detail:os...

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

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446 views

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python - Count Number of Rows Between Two Dates BY ID in a Pandas GroupBy Dataframe

I have the following test DataFrame: import random from datetime import timedelta import pandas as pd import ... ) pandas solution 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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346 views

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python - Add 'constant' dimension to xarray Dataset

I have a series of monthly gridded datasets in CSV form. I want to read them, add a few dimensions, and ... with a monthly 'time' dimension? See Question&Answers more detail:os...

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

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