Recent questions tagged PYTHON

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python - Difference between a+b and a.__add__(b)

I am currently trying to understand where the difference between using a+b and a.__add__(b) is when ... without checking __radd__ ?? 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 - Split autoencoder on encoder and decoder keras

I am trying to create an autoencoder for: Train the model Split encoder and decoder Visualise compressed data ( ... with the trained weights? 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 - Can CDATA sections be preserved by BeautifulSoup?

I'm using BeautifulSoup to read, modify, and write an XML file. I'm having trouble with CDATA ... initialize lxml with strip_cdata=False? 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 - Is it possible to create a regex-constrained type hint?

I have a helper function that converts a %Y-%m-%d %H:%M:%S-formatted string to a datetime.datetime: def ... type hint implementation (3.61)? 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 does one find the currency value in a string?

I'm writing a small tool to extract a bunch of values from a string (usually a tweet). The string could ... that should be pretty simple later. See Question&Answers more detail:os...

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

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705 views

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python multiprocessing .join() deadlock depends on worker function

I am using the multiprocessing python library to spawn 4 Process() objects to parallelize a cpu intensive task. The ... s .join() Method Doing? See Question&Answers more detail:os...

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

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614 views

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python - pyplot: Dotted line with FancyArrowPatch

I am using python and matplotlib.pyplot to generate a complex graphical output. I'd like to use a dotted linestyle ... to get the lower 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 - numpy genfromtxt issues in Python3

I'm trying to use genfromtxt with Python3 to read a simple csv file containing strings and numbers. For example, ... ? Thank you in advance! 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 - Add a bookmark to a PDF with PyPDF2

I'm trying to add a bookmark to a PDF using PyPDF2. I run the following with no problems. But a bookmark is ... 0, parent=None) # add bookmark 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 - Generator "TypeError: 'generator' object is not an iterator"

Due to the limitation of RAM memory, I followed these instructions and built a generator that draw small batch ... object is not an iterator 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 - How to compile __init__.py file using cython on Windows

When I compile an arbitrary __init__.py file on Windows with setup.py build_ext --inplace command, it has an ... ' failed with exit status 1120 See Question&Answers more detail:os...

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

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303 views

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python - Continue reading file from the position where it was left

I have to read a file multiple times in which some error info is appended everyday. Is there a way to ... there any other way through python? See Question&Answers more detail:os...

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

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612 views

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python - PIL: Generating Vertical Gradient Image

In Android, I used the following code to generate a gradient background that I need: <gradient android:angle= ... program written in Python. See Question&Answers more detail:os...

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

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398 views

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python - Grouping CheckboxSelectMultiple Options in Django

In my Django App I have the following model: class SuperCategory(models.Model): name = models.CharField(max_length= ... do this? Many 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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538 views

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python - Pandas groupby with dict

Is it possible to use a dict to group on elements of a column? For example: In [3]: df = pd.DataFrame({'A ... 3 three 1.636125 7 three -0.593476 See Question&Answers more detail:os...

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

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475 views

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python - split list of tuples in lists of list of tuples

I have a list of tuples like: [(1,a),(2,b), (1, e), (3, b), (2,c), (4,d), (1, b), (0,b), ( ... ), (8, e)]] is there any pythonic 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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445 views

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python - count how many elements in a numpy array are within delta of every other element

consider the array x and delta variable d np.random.seed([3,1415]) x = np.random.randint(100, size=10) ... doesn't scale with quadratic time? See Question&Answers more detail:os...

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

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481 views

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python - Fitting a 3D array of data to a 1D function with numpy or scipy

4I am currently trying to fit a lot of data to a sine function. In the case where I only have ... the fitting of higher dimensional 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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518 views

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python - averaging every five minutes data as one datapoint in pandas dataframe

I have a Dataframe in Pandas like this 1. 2013-10-09 09:00:05 2. 2013-10-09 09:01:00 3. 2013-10-09 09 ... 15:00 Can someone help me with 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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287 views

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python - concatenate two one-dimensional to two columns array

a = np.array([1, 2, 3]) aa = np.array([1], [2], [3]) b = np.array([1, 2, 3] ... solution to concatenate along axis 0 two one-dimensional arrays? See Question&Answers more detail:os...

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

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568 views

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python - How do I remove double back slash (`\`) from a bytes object?

For example: t = str.encode(msg) print(t) I am getting double slashes, like this: b'\xda\xad\x94 ... ' 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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898 views

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python - Find period of a signal out of the FFT

I have a periodic signal I would like to find the period. Since there is border effect, I first cut out the ... What am I doing wrong? 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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687 views

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python - How/where to use os.path.sep?

os.path.sep is the character used by the operating system to separate pathname components. But when os.path.sep ... does it truncate the path? See Question&Answers more detail:os...

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

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355 views

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python - How to create custom legend in matplotlib based on the value of the barplot?

Supposedly, I have barplot as below: The Day of Week 4 is for example refer to Wednesday, is it possible to ... in the bar plot? 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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1.2k views

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python 3.x - How to loop a task in discord.py

I am experimenting with making my own little discord bot that can get information from Twitch, but I'm stumped on ... seem to work. Any ideas? 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 - Get complete list of all possible Class Attributes

Is there a way, given a simple Class, to output all the possible attributes for it? Standard attributes like ... ? Again, proposing dir(). See Question&Answers more detail:os...

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

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424 views

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python - MultipleFileField wtforms

class AddProductForm(FlaskForm): product_pictures = MultipleFileField('Pictures') submit = SubmitField('Add Pictures') def ... from the wtforms. See Question&Answers more detail:os...

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

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588 views

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python - Obtaining span of plotted points from seaborn swarmplot

I have the following data: import pandas as pd import numpy as np # Generate dummy data. a = np.random. ... the Parent group, for instance? See Question&Answers more detail:os...

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

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