Recent questions tagged Python

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python - Disabling sorting mechanism in pprint output

I have big dictionary which I`m printing for viewing with prettyprint, but how I can keep formatting but kill sorting mechanism in pprint? See Question&Answers more detail:os...

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

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428 views

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python - Difference between __file__ and sys.argv[0]

Is there any difference between: __file__ and sys.argv[0] Because both seem to be doing the same thing: they hold ... sys.argv[0] being used. 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 - Unable to Install pyslalib package using python2.7 / MINGW on Windows 10

I'm trying to install the pyslalib package using python 2.7 on Windows 10 and keep getting the following: " ... : ld returned 1 exit status See Question&Answers more detail:os...

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

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153 views

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python - How to change the shape of the marker depending on a column variable?

I am trying to create a scatter plot for a csv file in python which contains 4 columns x, y, TL, L. ... the knnDataSet.csv file: knnDataSet.csv 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 pass files to the master node?

I've already written code in python to implement binary classification, and I want to parallelize this classification ... me fix the problem. See Question&Answers more detail:os...

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

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212 views

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python - subprocess.call

I am new to the subprocess.call function and I have tried different combinations of the same call but it is not ... >: No such file or directory 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 - scipy.optimize get's trapped in local minima. What can I do?

from numpy import *; from scipy.optimize import *; from math import * def f(X): x=X[0]; y=X[1] return x* ... ? I am using Spyder(Python 3.6). 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 - sys.getsizeof() results don't quite correlate to structure size

I am trying to create a list of size 1 MB. while the following code works: dummy = ['a' for i in xrange ... blocks into memory end = time.time() 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 - Pyspark RDD ReduceByKey Multiple function

I have a PySpark DataFrame named DF with (K,V) pairs. I would like to apply multiple functions with ... it slows down the computation. See Question&Answers more detail:os...

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

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570 views

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python - Numpy arrays: row/column wise argmax with random ties

Here is what I am trying to do with Numpy in Python 2.7. Suppose I have an array a defined by the ... since I am working with big arrays? See Question&Answers more detail:os...

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

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275 views

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python - Colorbar offsetText (scientific base multiplier) move from top to bottom of colorbar

I'm losing my wits here with this 'simple' problem: In the colorbar (illustrated in picture) in matplotlib ... until I finish current project) 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 test if a string has capital letters

In Scala I could test if a string has a capital letter like this: val nameHasUpperCase = name.exists(_.isUpper) The ... a better way to do 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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158 views

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python - NET::ERR_CERT_COMMON_NAME_INVALID - Error Message

I built a website some time ago with Flask. Now all of a sudden when I try to navigate there I get the ... Does anyone know what's going on? See Question&Answers more detail:os...

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

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222 views

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python - Convert Nested Dictionary to CSV Table

I'm going through a data mining tutorial and I'm using the following dictionary. users = { "Angelica": { " ... which will help me 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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189 views

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python - How to use command name with spaces?

How to make bot works when there is a space between commands in python bot. I know we can do that using sub- ... ctx.message) await bot.say(msg) See Question&Answers more detail:os...

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

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151 views

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python - How to generate list combinations?

I want to produce a list of lists that represents all possible combinations of the numbers 0 and 1. The lists ... I haven't found the 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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538 views

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python - "variable" May be undefined or defined from star imports: tkinter

I'm trying to make a simple outline for a gui, and I'm getting the warning "variable" May be undefined or ... app = myApp(gui) gui.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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311 views

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python - Syncing activity in PyQt QThreads

I'm playing around with PyQt, and QThreads. It seems that if I use the code that I've put in this python ... complete what I want 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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234 views

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python - Installing rpy2 on windows

I am trying to install rpy2 on a machine running Windows 10. I have already installed R 3.4. ... C:UserspyAppDataLocalTemppip-build-qz4rb_4o py2 See Question&Answers more detail:os...

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

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178 views

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python - Writing with lxml emitting no whitespace even when pretty_print=True

I'm using the lxml library to read an xml template, insert/change some elements, and save the resulting xml. One ... in lines: f.write(line) See Question&Answers more detail:os...

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

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397 views

1 answer

python - Convert a list of tensors to tensors of tensors pytorch

I have this code: import torch list_of_tensors = [ torch.randn(3), torch.randn(3), torch.randn(3)] ... a tensor of tensors in pytorch? 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 - Pandas dataframe datetime to time then to seconds

I have a dataframe. A column contains timestamps. I would like to remove dates and convert the time to seconds. ... thank your help 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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239 views

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python - Nested dictionary that acts as defaultdict when setting items but not when getting items

I want to implement a dict-like data structure that has the following properties: from collections import UserDict class ... 'Hello' } } } See Question&Answers more detail:os...

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

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603 views

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python - numpy.loadtxt Skipping multiple rows

I believe the title of this thread explains what I am looking for. I am curious to know what the syntax ... to find such information anywhere. See Question&Answers more detail:os...

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

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411 views

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python - Pandas df.apply does not modify DataFrame

I am just starting pandas so please forgive if this is something stupid. I am trying to apply a function ... i missing something here ? 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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228 views

1 answer

python - pandas Dataframe resampling with specific dates

I have a question regarding the resampling method of pandas Dataframes. I have a DataFrame with one observation ... Pandas? 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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319 views

1 answer

python - How does long-polling work in Tornado?

In Tornado's chat demo, it has a method like this: @tornado.web.asynchronous def post(self): cursor = self. ... , I'll accept that answer. See Question&Answers more detail:os...

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

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276 views

1 answer

python - Why doesn't Selenium's response have a sessionId?

I'm trying to run Selenium's Firefox webdriver and am getting the error below. I can see that the response does ... sure where to go from here. See Question&Answers more detail:os...

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

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