Recent questions tagged Python

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python - Pass column index and range simultaneously in Pandas iloc

Suppose I have a dataframe with 100 columns. I want to select only 0,1 and 51-100 columns for all ... alternative way to achieve functionality. 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 - Statically link python37.dll and vcruntime140.dll when using cython --embed

Let's say I'm "cythonizing" this test.py: import json print(json.dumps({'key': 'hello world'})) with ... .dll separately is no longer necessary) 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 - PyQT force update textEdit before calling other function

My question concerns PyQT5. I try to have a dialog window with a button that when clicked updates some ... sleep(5) run_lengthy_function(self) 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 remove zeros after decimal from string remove all zero after dot

I have data frame with a object column lets say col1, which has values likes: 1.00, 1, 0.50, 1.54 I ... set_option and round don't work for 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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python - TA-Lib Install Error

I am trying to install TA-Lib on Debian Jessie using pip. However I am encountering the following error: ... can solve this issue? 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 - Displaying the output of a variable to more than 2 decimal places

I'm trying to display the output of my addition to more than 2 decimal places. import time import random ... I return the full number? 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 show only evey nth categorical tickers in Bokeh

There was the same question two years ago. It seemed that evey nth categorical tickers was not supported at that ... when the plot is enlarged. 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 - memory usage, how to free memory

I am using python and when indexing documents (for search engine) it takes a lot of RAM, after i stop the ... Tnx everyone for the help :) 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 - Interpolation method that does not add unnecessary extremums

This question is half programming but also half mathematics. I want to interpolate a set of points by a curve ... one knows a better solution. 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 - Create two concurrently async task with asyncio

I need to create a software that receives concurrently from web socket and pipe and it sends ... raise NotImplementedError NotImplementedError 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 - Using local variables with multiple assignments with pandas eval function

The pandas help file says (for eval): As a convenience, multiple assignments can be performed by using a multi ... 'mult' is not defined 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 - Wikipedia disambiguation error

I have recently been using the wikipedia module to determine a random wikipedia page. I have been doing this with ... which I can bypass 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 - Showing and hiding multiple windows in PyQt5

I'm working on a project with UI and I started to do it with PyQt5. So far I watched lots of videos read some ... .show() sys.exit(app.exec_()) 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 insert array formula in an Excel sheet with openpyxl?

I'm using OpenPyxl to create and modify an Excel sheet. I have the following formula in Excel : =(SUM(IF(LEFT( ... 't see wich path to follow. 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 - psycopg2 difference between AsIs and sql module

To choose dynamically a table name in a query I used to use AsIs() from psycopg2.extensions ( http://initd. ... be passed directly to execute()? 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 deleting square brackets in dtype.names

I'm trying to read in data from files using numpy.genfromtxt. I set the names parameter to a comma-separated list of ... 1.6.1 and 1.9.9 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 possible to draw GtkTreeView listed like GtkIconView?

I am working on a GTK+ application written in python. I obviously use PyGtk. My application is about ... arranging photos and tags under? 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's button can't change border color

Here's my Tkinter code: Photoshop = Tkinter.Button(root, text = 'Photoshop', fg = '#37d3ff', bg = '#001d26' ... . Instead, it used default grey. See Question&Answers more detail:os...

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

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480 views

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python - Using logical operators in building a Pandas DataFrame

I have two snippets of pandas code which I think should be equivalent, but the second one doesn't do ... to the list comprehension version. 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 - Export PST and OST with pypff / libpff

I need to do in python a module to export PST and OST files and I am trying to use pypff to do ... pypff to extract messages and attachments. See Question&Answers more detail:os...

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

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373 views

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python - Can I change tickers in a plot to custom text tickers?

I'm trying to change the x-axis on a plot to get ordinal text values and I'm having a hard time trying to ... , the code works fine in 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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python - exec to add a function into a class

So I've looked at similar questions, and I've found some solutions to this, but I can't quite figure out ... access to. I appreciate any help. 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 - Why does the get() operation in multiprocessing.Pool.map_async take so long?

import multiprocessing as mp import numpy as np pool = mp.Pool( processes = 4 ) inp = np.linspace( 0.01, 1.99, ... ( I am rather new to 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 - PyQt : How to add a grid layout inside a QGroupBox in PyQt4

I am trying to create an application window with PyQt4. I want to create a window with a frame and inside that ... ", which already has a layout See Question&Answers more detail:os...

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

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575 views

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python 3.x - Tkinter keybinding for Control-Shift-Tab

What's the key-binding for Control-Shift-Tab? I've tried lots of things and nothing seems to work. I'm ... activated, that would suffice, 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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571 views

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python - Creating a Marquee effect in PySide

How would I be able to create a marquee effect in a PySide Label in Python? I have some news headlines in ... across the bottom of the window. See Question&Answers more detail:os...

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

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512 views

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python - hadoop streaming: how to see application logs?

I can see all hadoop logs on my /usr/local/hadoop/logs path but where can I see application level logs? ... and using hadoop-streaming 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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410 views

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python - DropoutWrapper being non-deterministic across runs?

In the beginning of my code, (outside the scope of a Session), I've set my random seed - np.random. ... defining an operation and graph seed? See Question&Answers more detail:os...

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

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