Recent questions tagged Python

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python - How to remove/exclude modules and files from pyInstaller?

I'm trying to shrink the size of my python exe file, I've been looking around but I can't seem to find a good ... Using Python 2.7, PyQt4 4.9.x 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 2.7 - Accept permission request in chrome using selenium

I have a HTML/Javascript file with google's web speech api and I'm doing testing using selenium, however ... click on ALLOW automatically ? 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 - Delete columns from numpy array depending on a condition on a single cell

Above all, sorry for my bad English. I have this array t: array([[ 0, 1, 2, 0, 4, 5, 6, 7, 8, 9], ... I tried with np.sum() but didn't succeed. 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 - Docker Alpine linux running 2 programs

I am trying to create docker image with alpine linux, which after run will create container with 2 running ... how to restart/reload it. 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: outer product of n vectors

I'm trying to do something simple in numpy, and I'm sure there should be an easy way of doing it. Basically, I have ... a,b: a*b, reshaped, 1) 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 - A per-hour histogram of datetime using Pandas

Assume I have a timestamp column of datetime in a pandas.DataFrame. For the sake of example, the timestamp ... to use different resolutions. 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 3.x - How to convert pyspark.rdd.PipelinedRDD to Data frame with out using collect() method in Pyspark?

I have pyspark.rdd.PipelinedRDD (Rdd1). when I am doing Rdd1.collect(),it is giving result like below. [(10, ... me know how to achieve 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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python - When using lxml, can the XML be rendered without namespace attributes?

I am generating some XML with lxml and getting nodes generated like this: <QBXML xmlns:py="http://codespeak ... render without the custom stuff? 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 for lxml to work in a case-insensitive manner?

I'm trying to scrape META keywords and description tags from arbitrary websites. I obviusly have no control over ... was case-sensitive 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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565 views

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python - Using BeautifulSoup to extract the title of a link

I'm trying to extract the title of a link using BeautifulSoup. The code that I'm working with is as follows: ... the anchor tag stored in link? See Question&Answers more detail:os...

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

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327 views

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python - Kivy how to rotate a picture

i'm trying to rotate some pictures i have to show on the screen, these picture are inside a stacklayout, and ... m using the Image Widget 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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171 views

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python - Properly formatted multiplication table

How would I make a multiplication table that's organized into a neat table? My current code is: n=int(input(' ... 'm not sure where that goes? See Question&Answers more detail:os...

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

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938 views

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python - Does PIL image.convert("RGB") convert images to sRGB or AdobeRGB?

I want to batch convert images from various modes such as RGBa, CMYK etc to sRGB using PIL in Python. ... it successfully convert to sRGB? 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 tuple is immutable - so why can I add elements to it

I've been using Python for some time already and today while reading the following code snippet: >>> a = ... seems contradictory to me... See Question&Answers more detail:os...

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

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169 views

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python - add a new column to an existing csv file

I have a csv file with 5 columns and I want to add data in a 6th column. The data I have is in an array. Right ... ... I don't know what to do! See Question&Answers more detail:os...

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

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371 views

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python - Speed difference between bracket notation and dot notation for accessing columns in pandas

Let's have a small dataframe: df = pd.DataFrame({'CID': [1,2,3,4,12345, 6]}) When I search for ... : pandas.core.series.Series Why is 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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296 views

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python - Dynamically change widget background color in Tkinter

I have a simple tkinter window. It consists of a small window, a timer, and a button to set timer ... change without restarting my application? See Question&Answers more detail:os...

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

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658 views

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python - matplotlib.pcolor very slow. alternatives?

I want to plot a 2D array (roughly 1000x1000) with the values corresponding to a color scale. So I used matplotlib. ... maybe 60-90 secs each). See Question&Answers more detail:os...

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

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532 views

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python - How to open PIL Image in Tkinter on Canvas

I can't seem to get my PIL Image to work on canvas. Code: from Tkinter import* import Image, ImageTk root = ... because I want to use Tkinter. See Question&Answers more detail:os...

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

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323 views

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python - How can I serve unbuffered CGI content from Apache 2?

I would like to be able to allow a user to view the output of a long-running GCI script as it is ... /FAQ-F.html#nph-scripts 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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586 views

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python - ODBC Driver 13 for SQL Server can't open lib on pyodbc while connecting on AWS E2 ubuntu instance

Background: i have been at it for about a week but still no luck. the same driver (13.0) on my system ( ... usr/local/lib/libodbcinst.so.2.0.0 See Question&Answers more detail:os...

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

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284 views

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python - Why does PyImport_Import fail to load a module from the current directory?

I'm trying to run the embedding example and I can't load a module from the current working directory unless I ... : /usr/lib/pymodules/python2.7 See Question&Answers more detail:os...

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

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297 views

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python - inserting numpy integer types into sqlite with python3

What is the correct way to insert the values of numpy integer objects into databases in python 3? In ... longer works seamlessly with numpy? See Question&Answers more detail:os...

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

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257 views

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python - How do I install the most recent Tensorflow (here: 2.2) on Windows when conda does not yet support it?

I have conda 4.8.3 and Python 3.7.4 on Windows 8.1. I have tf 2.0.0 installed in a conda environment. ... 1 py37_0 numba 0.45.1 py37hf9181ef_0 numexpr 2.7.0 py37hdce8814_0 numpy 1...

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

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399 views

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python - How to use Pandas groupby apply() without adding an extra index

I very often want to create a new DataFrame by combining multiple columns of a grouped DataFrame. The apply() ... the extra index of zeros? See Question&Answers more detail:os...

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

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203 views

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python - Save pandas dataframe but conserving NA values

I have this code import pandas as pd import numpy as np import csv df = pd.DataFrame({'animal': 'cat dog cat fish ... S";NA False;"cat";"M";NA See Question&Answers more detail:os...

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

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307 views

1 answer

python - Numpy "Where" function can not avoid evaluate Sqrt(negative)

It seems that the np.where function evaluates all the possible outcomes first, then it evaluates the condition later. This ... 0,np.sqrt(c),c) See Question&Answers more detail:os...

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

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138 views

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python - Multiply in django template

I am looping through cart-items, and want to multiply quantity with unit-price like this: {% for cart_item in cart. ... way to do it !! 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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