Recent questions tagged Python

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python - Absolute import failing in subpackage that shadows a stdlib package name

Basically I have a subpackage with the same name as a standard library package ("logging") and I'd like it ... from 'c:foologging\__init__.pyc'> 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 - Given boundaries, find interval

Having a list like this [207, 357, 470, 497, 537] where each number denotes the boundary of an interval (0 being ... , for n=360, it's 2. 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 - Opening File (Tkinter)

I'm trying to make a Tkinter program that can open a file. So far it opens a tk window that has an ... .config(menu=menubar) root.mainloop() 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 - duplicate key value violates unique constraint - postgres error when trying to create sql table from dask dataframe

Following on from this question, when I try to create a postgresql table from a dask.dataframe with more than one ... ? How can I fix 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 - Can't install zbar

I am trying to use the qrtools module with Python 3.4.2 on my Raspberry Pi 2, however it cannot run as I ... Still... No module named 'zbar' 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 plot rows in dataframe

I have dataset which look like this import pandas as pd data = {'Name of Countries': ['BANGLADESH', ' ... individual row like I am 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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python - Convert strings to float in all pandas columns, where this is possible

I created a pandas dataframe from a list of lists import pandas as pd df_list = [["a", "1", "2"], ["b", ... .astype("float", errors = "ignore")? 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 - NoneType object is not iterable error in pandas

I am trying to pull some data from a stored proc on a sql server using python. Here is my code: import ... : 'NoneType' object is not iterable 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 call two functions

Is it possible to make it so that a Tkinter button calls two function? some thing like this maybe?: from Tkinter ... , command=t) button.pack() 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 locale.getpreferredencoding() return 'ANSI_X3.4-1968' instead of 'UTF-8'?

Whenever I try to read UTF-8 encoded text files, using open(file_name, encoding='utf-8'), I always get ... ="en_US.UTF-8" LC_ALL= See Question&Answers more detail:os...

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

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344 views

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python 2.7 - Debuggers not acting properly on Jupyter notebooks

I'm trying to debug some code in a Jupyter notebook. I've tried 3 4 different methods, and they all suffer ... I've tested) works just fine. 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 - urllib2 returns 404 for a website which displays fine in browsers

I am not able to open one particular url using urllib2. Same approach works well with other websites such as "http ... 404: Not Found 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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663 views

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python - Convert a BaseClass object into a SubClass object idiomatically?

There is a base class Base and a subclass Special. class Base(object): def __init__(self, name): self.name = ... ll need access to some methods. 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 - Plotting arrows with different color in matplotlib

I have a two dimensional array with 5 columns and some number of rows. The different columns have the following ... I do this matplotlib/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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254 views

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python - How to implement camera pan like in 3dsMax?

What are the necessary maths to achieve the camera panning effect that's used in 3ds max? In 3ds max the ... which value of the depth buffer. See Question&Answers more detail:os...

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

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256 views

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python dictionary values sorting

I have 2 dictionaries, dict1 and dict2 which contain the same keys, but different values for the keys. What I ... rank in the sorted list. 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 - Measuring Celery task execution time

I have converted a standalone batch job to use celery for dispatching the work to be done. I'm using ... and getting a performance estimation. See Question&Answers more detail:os...

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

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243 views

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python - Choose adapter dynamically depending on librarie(s) installed

I am designing a library that has adapters that supports a wide-range of libraries. I want the library to ... e.g. Consumer and Publisher. 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 there a way to make collections.Counter (Python2.7) aware that its input list is sorted?

The Problem I've been playing around with different ways (in Python 2.7) to extract a list of (word, frequency) tuples ... from the corpus (as a list) to a case insensitive wor...

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

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python 2.7 - guidelines on using pandas inplace keyword argument

What is the guideline for using inplace? For example, df = df.reset_index() or df.reset_index(inplace=True) Same same but different? See Question&Answers more detail:os...

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

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451 views

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python - how to convert string to datetime.timedelta()?

how can i convert my string of date to a datetime.timedelta() in Python? I have this code : import ... target_date 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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548 views

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python - Py2app: Operation not permitted

I want to create an application called 'dodgeball' and I have my main script (which uses pygame), and my ... to make a fully functionable app? See Question&Answers more detail:os...

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

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246 views

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python - Setting default number format when writing to Excel from Pandas

I'm looking to set the default number format when writing to Excel from a Pandas dataframe. Is this possible? I ... to set the number format. See Question&Answers more detail:os...

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

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328 views

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python - Playing a sound from a wave form stored in an array

I'm currently experimenting with generating sounds in Python, and I'm curious how I can take a n array ... more than just .wav format. 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 - All row sum with pandas except one

I have several tables on a PostgreSQL database that look more or less like that: gid col2 col1 col3 6 15 45 ... python (pandas, numpy) or psql? 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 - ODBC SQL type -155 is not yet supported

I follow this link to query Azure database. import pyodbc server = 'your_server.database.windows.net' database = ' ... Azure. Anyone can 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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293 views

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python - How to run multiple Selenium Firefox browsers concurrently?

Trying to run multiple processes concurrently on the same machine, which use Selenium. What would happen is ... suggestion will 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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349 views

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python - Windowed maximum in numpy

I have an array and I would like to produce a smaller array by scanning a 2x2 non-overlappingly windows and ... I do this more efficiently? See Question&Answers more detail:os...

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

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