Recent questions tagged Python

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I have a python flask app I'm running on Heroku which uses the soundfile library. After adding soundfile to ... can use soundfile on Heroku? 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 - Pandas: update a column with an if statement

My current dataframe looks like this: midprice ema12 ema26 difference 0 0.002990 0.002990 0.002990 0.000000e+00 1 ... on how to proceed? 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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python - Cython: understanding a typed memoryview with a indirect_contignuous memory layout

I want to understand more about Cython's awesome typed-memoryviews and the memory layout indirect_contiguous ... concept of indirect_contiguous? 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 you handle column names having spaces in them when using pd.read_clipboard?

This is a real problem I've faced for a long time. Take this dataframe: A B THRESHOLD NaN NaN NaN -0. ... 166235 NaN How can I prevent 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 customize and add extra elements to Sympy plots?

I have a few questions about what how to work with graphics, using Sympy. My code: from sympy import * x, y = symbols ... 0) and the line y = 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 - Is this function recursive even though it doesn't call itself?

from pythonds.basic.stack import Stack rStack = Stack() def toStr(n,base): convertString = "0123456789ABCDEF" while n ... . What am I missing? 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 a failed Airflow DAG Task Retry with changed parameter

With Airflow, is it possible to restart an upstream task if a downstream task fails? This seems to be against the ... on how to handle 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 - There is error "Invalid locator values passed in" in case we use find_element instead of find_element_by

I'm using Python-Webdriver to automate a "click" action. Here is my code: from selenium.webdriver.common.by import ... my code as I did. 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 convert this nested JSON in columnar form into Pandas dataframe

I could read this nested JSON format in columnar format into pandas. JSON Scheme JSON scheme format Python script req = ... } ] },... ] 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 - Binding an objects value within a function (closure)

In SML (a functional programming language that I learned before Python), I can do the following: val x = 3 ... variable to a function 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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python - Whats wrong with my datetime.strptime format?

With this function: timestamp = datetime.strptime(date_str, date_fmt) I am getting this error: ValueError: time data 'Sun ... 23 2018, 20:24:19) 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 dates YearLocator with odd intervals

Right now I have a working bit of code that formats to my specification when my time series begin at the start ... plot begins on an odd year? 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 - TypeError: printName1() takes 0 positional arguments but 1 was given

So I have this very simple thing I wrote and it's killing me trying to figure out why it won't work. ... me in case anyone stumbles upon 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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660 views

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python - Matplotlib Table Row Label Font Color and Size

Given the following table: import matplotlib.pyplot as plt table=plt.table(cellText=[' ', ' ', ' ', ' ', ' ' ... and the font size to 12 point. 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 can I play a sine/square wave using Pygame?

I'm trying to play a sine wave using Pygame's sndarray.make_sound function. However, when I use this array to ... a Mac. Thanks 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 - Difference between turtle and Turtle?

How are turtle and Turtle different from each other in python version 2.7? import turtle star = turtle.Turtle() ... .right(144) turtle.done() See Question&Answers more detail:os...

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

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140 views

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python - Resetting the main GUI window

I just want the equivalent of closing and reopening my main program. I want to invoke it when a "new"-like option ... How can I get this done? See Question&Answers more detail:os...

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

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350 views

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python - Error in installing face_recognition module using pip

I am using vs code in windows 10. When I install face_recognition in vs code using pip I got the following ... logs for full command output. 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 - PyInstaller fails on Windows 7: "Can't find a usable init.tcl"

I have a basic Python script which uses Tkinter. from Tkinter import Tk from tkFileDialog import askdirectory ... compiling with PyInstaller? 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 matrix, setting 0 to values by sorting each row

I have a matrix, with many rows, and 8 columns. Each cell represents a probability for the current row to belong to 1 ... 0. , 0. ]]) 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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375 views

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python - Add toolbar button icon matplotlib

I want to add an icon to a custom button in a matplotlib figure toolbar. How can I do that? So far, I have ... a custom icon like a png 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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172 views

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python - Read two column CSV as dict with 1st column as key

I have a CSV with two columns, column one is the team dedicated to a particular building in our project. The second ... 204", "250", "1437"] 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 - Does numpy.random.seed() always give the same random number every time?

I know that numpy.random.seed(seed) will output the same numbers if I use the same seed. My question is, ... set of random numbers as yesterday? 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 - Pandas: remove duplicates that exist in any order

My question is similar to Pandas: remove reverse duplicates from dataframe but I have an additional requirement. I need to ... w #3 21 x 5 z 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 undo an edit of a QListWidgetItem in PySide/PyQt?

Short version How do you implement undo functionality for edits made on QListWidgetItems in PySide/PyQt? Hint ... this question at QtCentre. See Question&Answers more detail:os...

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

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141 views

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python - Pydev in Eclipse default working directory

What is the default working directory for my project? I have several projects under my workspace, and a couple of ... back to default? 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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189 views

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python - PySide: Returning a value from a slot

The Pyside documentation states that slots can have return values, but I have yet to figure out how make it ... .emit() testSlot called True See Question&Answers more detail:os...

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

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260 views

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python - old sklearn version in Jupyter Notebook

I update sklearn version by terminal with conda install scikit-learn=0.18 if I list with conda list scikit- ... the version in Jupyter Notebook? See Question&Answers more detail:os...

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

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