Recent questions tagged Python

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python - pandas plot dataframe as multiple bar charts

This is my pandas dataframe df: ab channel booked 0 control book_it 466 1 control contact_me 536 2 control instant 17 ... but this is the gist): See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - drop_duplicates not working in pandas?

The purpose of my code is to import 2 Excel files, compare them, and print out the differences to a new ... file df.to_excel("Comparison19.xls") See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Crop out partial image using NumPy (or SciPy)

Using numpy or scipy (I am not using OpenCV) I am trying to crop a region out of an image. For instance, I have ... 4)...]) with numpy or SciPy? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Access a Flask extension that is defined in the app factory

I am using the app factory pattern to set up my Flask application. My app uses the Flask-Babel extension, and ... I go about solving this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Having line color vary with data index for line graph in matplotlib?

So I have a 2D array of data producing a plot of many timeseries on the same axes. At the moment, the ... should be between each line. Thankyou! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Plotting a 3d surface from a list of tuples in matplotlib

I'm trying to plot a 3d surface from a list of (X,Y,Z) tuples, data is like this, I'm unsure how ... would like it to look something like this: See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Writing multiple pandas dataframes to multiple excel worksheets

I'd like for the code to run 12345 thru the loop, input it in a worksheet, then start on 54321 and do ... with only 1 worksheet (54321). See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Requests not able call multiple routes in same Flask application

I am not able to successfully use Python Requests to call a second route in the same application using Flask. I ... .run(debug=True, port=5000) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Why do methods of different objects of same class have same id?

In the following code, I don't understand why useless_func has the same id when it belongs to two different ... id(p2.useless_func) // True See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - TypeError: Input 'filename' of 'ReadFile' Op has type float32 that does not match expected type of string

I am running this code from the tutorial here: https://keras.io/examples/vision/image_classification_from_scratch/ with a ... me? Thank you... See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Comparing Matlab and Numpy code that uses random number generation

Is there some way to make the random number generator in numpy generate the same random numbers as in ... random number generation. Thanks! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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146 views

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python - Time out issues with chrome and flask

I have a web application which acts as an interface to an offsite server which runs a very long task. ... continue waiting? Thanks in advance See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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172 views

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python - Capturing Value instead of Reference in Lambdas

I was slightly surprised by this example given by Eli Bendersky (http://eli.thegreenplace.net/2015/the-scope- ... Is this a correct explanation? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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297 views

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python - Understanding tf.contrib.lite.TFLiteConverter quantization parameters

I'm trying to use UINT8 quantization while converting tensorflow model to tflite model: If use ... interpreter.get_input_details()? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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142 views

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python - pandas Combine Excel Spreadsheets

I have an Excel workbook with many tabs. Each tab has the same set of headers as all others. I want to combine all ... b But it's not "working". See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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287 views

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python - How to make a Button using the tkinter Canvas widget?

I want to obtain a button out of a Canvas. I've tried to pack the canvas in the button widget, but that ... with a red circle painted inside. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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109 views

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python - Creating multiple lists

I'm trying to create multiple lists like the following: l1 = [] l2 = [] .. ln = [] Is there any way to do that? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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127 views

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python - Pandas DataFrame Object Inheritance or Object Use?

I am building a library for working with very specific structured data and I am building my infrastructure on top ... the approach in Option #1? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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301 views

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python - Solve Generalized Eigenvalue Problem in Numpy

I am looking to solve a problem of the type: Aw = xBw where x is a scalar (eigenvalue), w is an ... not finding anything like what I wanted. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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183 views

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python - How to find a word that starts with a specific character

I want to sort out words which are started with 's' in sentence by python. Here is my code: import re text ... any method to sort out words? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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338 views

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python - Generating all unique pair permutations

I need to generate all possible pairings, but with the constraint that a particular pairing only occurs once in ... 's been amazingly helpful. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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234 views

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python - Cannot import Scikit-Learn

I tried to install scikit-learn on my Linux Mint 12 but failed. I downloaded the package from http://pypi. ... the wrong size, try recompiling See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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676 views

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python - Django url that captures yyyy-mm-dd date

How do you capture a url that contains yyyy-mm-dd in Django. So like www.mydomain.com/2011-02-12. I tried: ... , the server says page not found. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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291 views

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python - how to use QuerySelectField in flask?

I am trying to have a select field filled with the results of a sqlalchemy request in a flask form. Here are the ... " on the head). Thank you. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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628 views

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python - Combining Django F, Value and a dict to annotate a queryset

I have a scenario where I want to annotate a queryset with externally prepared data in a dict. I want to do ... Python 3.6 and Django 1.11 See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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522 views

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python - How to drop all columns with null values in a PySpark DataFrame?

I have a large dataset of which I would like to drop columns that contain null values and return a new dataframe ... one of its values is empty. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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955 views

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python - Pyinstaller win32ctypes.pywin32.pywintypes.error: (1920, 'LoadLibraryExW', 'System cannot access the file')

I'm trying to use the pyinstaller to pack my python file in to .exe, but I keep getting this error ... My operating system is Windows 10 See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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304 views

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python - Is it possible to run only a single step of the asyncio event loop

I'm working on a simple graphical network application, using asyncio and tkinter. I'm running into the problem of ... loop inside a tk callback. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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