Recent questions tagged Python

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The following code only shows the main category ['one', 'two', 'three', 'four', 'five', 'six'] as the x ... .plot(kind='bar',figsize=(10,4)) 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 - Create block diagonal numpy array from a given numpy array

I have a 2-dimensional numpy array with an equal number of columns and rows. I would like to arrange them into ... number of rows and columns)? 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 - pylint can't find QWidget and QApplication

import sys from PyQt5.QtWidgets import (QApplication, QWidget) app = QApplication(sys.argv) window = QWidget() window. ... GCC 5.4.0 20160609] 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 - PyInstaller-built Windows EXE fails with multiprocessing

In my project I'm using Python's multiprocessing library to create multiple processes in __main__. The ... single-file Windows executables? 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 - In lxml, how do I remove a tag but retain all contents?

The problem is this: I have an XML fragment like so: <fragment>text1 <a>inner1 </a>text2 <b>inner2</b> <c>t</ ... , I don't think I can 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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python - using pyodbc on linux to insert unicode or utf-8 chars in a nvarchar mssql field

I am using Ubuntu 9.04 I have installed the following package versions: unixodbc and unixodbc-dev: 2.2.11-16build3 ... not asking much, is it? 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 - Load TrueType Font to OpenCV

Can we load a custom TrueType font and use it with cv2.putText function ? font = cv2.FONT_HERSHEY_SIMPLEX cv2.putText ... ,255),2,cv2.LINE_AA) 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 - Numpy array loss of dimension when masking

I want to select certain elements of an array and perform a weighted average calculation based on the values. However, ... arr>3].shape (18,) 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 - macports didn't place python_select in /opt/local/bin

I've uninstalled and reinstalled python_select using MacPorts and yet it won't show up in /opt/local/bin. ... MacPorts and try installing again? 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 - Can two processes access in-memory (:memory:) sqlite database concurrently?

Is it possible to access database in one process, created in another? I tried: IDLE #1 import sqlite3 conn ... : no such table: test 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 - Gevent monkeypatching breaking multiprocessing

I am attempting to use multiprocessing's pool to run a group of processes, each of which will run a gevent pool of ... , 'alpha', 3) Any ideas? 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 - Spacing between some subplots but not all

I have a matplotlib plot in python with 3 subplots, all in 1 column. I currently control the height of ... me some more information please? 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 - Resample a numpy array

It's easy to resample an array like a = numpy.array([1,2,3,4,5,6,7,8,9,10]) with an ... of application: audio signal resampling / repitching 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 - Tensorflow import error: No module named 'tensorflow'

I installed TensorFlow on my Windows Python 3.5 Anaconda environment The validation was successful (with a warning) ... March, received no reply 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 - 'pip' is not recognized

I tried to install PySide but I got error from the power shell as follows: pip : The ... + FullyQualifiedErrorId : CommandNotFoundException 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 - Multilabel-indicator is not supported for confusion matrix

multilabel-indicator is not supported is the error message I get, when trying to run: confusion_matrix(y_test, ... could apply. Any hints? 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 - Merge dataframes in a dictionary

Say I have an dictionary of dataframes: {'df1': name color type Apple Yellow Fruit, 'df2': name color type ... merge? Any help is appreciated. 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 - How to use authenticated proxy in selenium chromedriver?

After searching for many hours I am starting to think this is impossible. I need to run Chrome through ... they are absolutely necessary. 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 - How does the min/max function on a nested list work?

Lets say, there is a nested list, like: my_list = [[1, 2, 21], [1, 3], [1, 2]] When the function min ... it work? What are some use cases of it? 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 - What is os.linesep for?

Python's os module contains a value for a platform specific line separating string, but the docs explicitly say ... separator, and for what? See Question&Answers more detail:os...

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

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385 views

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python - pandas combine two strings ignore nan values

I have two columns with strings. I would like to combine them and ignore nan values. Such that: ColA, Colb ... seems like quite the workaround. 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 - Cannot install pyaudio, gcc error

Trying to install pyaudio with instructions per here: $ git clone http://people.csail.mit.edu/hubert/git/ ... going wrong in my installation? 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 - Beautifulsoup multiple class selector

I want to select all the divs which have BOTH A and B as class attributes. The following selection soup.findAll('div ... that have both A and B. 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 - What's the difference between super() and Parent class name?

Is there a difference between using super() and using the parent class name directly? For example: class Parent: ... and Parent.__init__(self)? 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 - Getting the difference (delta) between two lists of dictionaries

I have the following Python data structures: data1 = [{'name': u'String 1'}, {'name': u'String 2' ... Underscore.js (_.difference) library? 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 - error: Failed to load the native TensorFlow runtime

i'm new to tensorflow, today i installed tensorflow using: C:>pip3 install --upgrade tensorflow Collecting ... gurus thanks, best regards See Question&Answers more detail:os...

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

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337 views

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python - I want to replace single quotes with double quotes in a list

So I am making a program that takes a text file, breaks it into words, then writes the list to a new text ... the list to have double quotes.] 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 - confused about random_state in decision tree of scikit learn

Confused about random_state parameter, not sure why decision tree training needs some randomness. My thoughts, (1) is it ... 1. ]) regards, Lin See Question&Answers more detail:os...

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

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