Recent questions tagged Python

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python - Finding Patterns in a Numpy Array

I am trying to find patterns in a numpy array, called values. I'd like to return the starting index position of the ... Output: [1, 3, 8] 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 animation either freezes after a few frames or just doesn't work

I've been trying for hours to get this simple script working, but nothing I do seems to help. It's a slight ... were able to fix it either :( 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 - Updating the feature names into scikit TFIdfVectorizer

I am trying out this code from sklearn.feature_extraction.text import TfidfVectorizer import numpy as np train_data = [" ... can I get that. 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 get the signed content from a PKCS7 envelop with M2Crypto?

I need to get the digest of a PKCS#7 envelop to manually check it. Usually when you want to validate the ... having to use sm_obj.verify? 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 do I generate a png file w/ selenium/phantomjs from a string?

I am using selenium/phantomjs to create png files of html in python. Is there a way to generate the png from ... () print "png file created" 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 Oracle RDS

I am trying to connect to Oracle using AWS lambda and python. These are the step I followed. (Everything ... retrieve text for error ORA-01804 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 draw cubic spline in matplotlib

I want to connect the following points using smooth line, say cubic spline points = [(3.28,0.00),(4.00,0.50) ... is of course not what 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 - Traversing FTP listing

I am trying to to get all directories' name from an FTP server and store them in hierarchical order in a ... listing from an FTP server? 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 - Many dictionaries using massive amounts of RAM

I have a very simple Python script to create (for test purposes), 35 million dictionary objects within a ... the massive consumption of RAM? 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 - adding an image to the Turtle Screen

How can I add image to my Turtle Screen using turtle graphics? whenever I use the function addshape I keep ... (image) turtle.shape(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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700 views

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python - Use multiple directories for flow_from_directory in Keras

My scenario is that we have multiple peers with their own data, located in different directories, with the same sub- ... I can adapt. Thank you. 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 canvas image is not displayed in class

I am trying to display an image in python using the tkinter canvas option. However, if I input it in a class, ... ) board.pack() 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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python - Parsing Very Large XML Files Using Multiprocessing

I have a huge XML file, and I'm a tad bit at a loss on how to handle it. It's 60 GBs, and I need ... this that they could point me to? Thank you 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 - Cythonize list of all splits of a string

I'm trying to speed up a piece of code that generates all possible splits of a string. splits('foo') ... a string with the highest probability. 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 - 'import sitecustomize' failed upon starting spyder

I am trying to install python. Or actually, have installed and deinstalled it a few times now. I am using ... "license" for more information. See Question&Answers more detail:os...

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

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334 views

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python - How to print list elements in one line?

I need to print the sorted list of integers, but it should be in a line and without the list square brackets and without any ... ::: [1,2,3,4,5] 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 - Changing the __name__ of a generator

Given the following setup: def mapper(f): def wrapper(items): for x in items: yield f(x) wrapper. ... object and retrieve the name double? 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 - Multiple insert columns if not exist pandas

I have the following df list_columns = ['A', 'B', 'C'] list_data = [ [1, '2', 3], [4, '4', 5] ... missing? And not to make an if for each 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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458 views

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python - Given an rpm package name, query the yum database for updates

I was imagining a 3-line Python script to do this but the yum Python API is impenetrable. Is this even possible? ... the only way to do 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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346 views

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python - filecmp.cmp() ignoring differing os.stat() signatures?

The Python 2 docs for filecmp() say: Unless shallow is given and is false, files with identical os.stat() ... os.stat() signatures are unequal. See Question&Answers more detail:os...

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

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278 views

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python - How to create a function for recursively generating iterating functions

I currently have a bit of Python code that looks like this: for set_k in data: for tup_j in set_k: for tup_l ... might I go about doing that? See Question&Answers more detail:os...

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

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281 views

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python - Mongo push to array inside array

im new with mongo and so far have no issue using it. Until i stuck at this. I need to push a document to an ... ). What am i doing wrong 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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python - Find the similarity between two string columns of a DataFrame

I am new to programming.I have a pandas data frame in which two string columns are present. Data frame is ... 85),AccountDTH(80),Balance(60) See Question&Answers more detail:os...

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

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477 views

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python - Flask-SQLAlchemy Lower Case Index - skipping functional, not supported by SQLAlchemy reflection

First off. Apologies if this has been answered but I can not find the answer any where. I need to define a ... sa.text('lower(email)')]) 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 2.7 - Buildozer compiles apk, but it crashes on android

I am able to build an .apk, but after I install it on my android phone it simply crashes at startup. ... thing. Any help would be 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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272 views

1 answer

python - Plotly icreate_animations offline on Jupyter Notebook

I am trying to replicate this plotly tutorial on a Jupyter Notebook with a dataset that matches the one given in the example, I ... 'left', 'currentvalue': { 'font': {'size': 2...

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

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282 views

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python - How to pass multiple return values to a variadic function?

I have a Go function which returns two integer values. Below is the function func temp() (int, int){ return ... do Something similar in Go too? See Question&Answers more detail:os...

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

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1.2k views

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python - NumPy convert 8-bit to 16/32-bit image

I am using OpenCV 2 to do some images manipulations in YCbCr color space. For the moment I can detect ... cv2.cv.CV_IMWRITE_PNG_COMPRESSION, 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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