Recent questions tagged Python

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python - Is it possible to get widget settings in Tkinter?

It'd be awesome if I could get something like the below. Pseudo Code: U = widget1.SettingsGet() ... can manipulate other widgets accordingly. See Question&Answers more detail:os...

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

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283 views

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python - How to Send/Receive SMS using AT commands?

Can anyone help me to send and receive SMS using AT commands in Python? In case it matters, I'm using ... and receiving SMS using AT commands? 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: Check if float array contains whole numbers

In Python, it is possible to check if a float contains an integer value using n.is_integer(), based on this ... to Python's float.is_integer? 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 3.6 socket pickle data was truncated

i can not send my numpy array in socket, i use pickle but il my client pickle crash with this error: pickle ... ) print (data_arr) s.close() 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 instance need to be recreated when restarting a thread?

Imagine the following classes: Class Object(threading.Thread): # some initialisation blabla def run(self): while True ... a smarter, easier way? See Question&Answers more detail:os...

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

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367 views

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python - Convert sympy expressions to function of numpy arrays

I have a system of ODEs written in sympy: from sympy.parsing.sympy_parser import parse_expr xs = symbols('x1 x2' ... ,k], deferred_syms) # error 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 Selenium web driver have access to javascript global variables?

Hi: I'm writing tests for django with javascript and I was wondering if the Selenium webdriver can access a ... .live_server_url, '/mypage/')) 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, subprocess: reading output from subprocess

I have following script: #!/usr/bin/python while True: x = raw_input() print x[::-1] I am calling it from ... .stdout.read() but it hangs again. See Question&Answers more detail:os...

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

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252 views

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python - How can I create a numpy .npy file in place on disk?

Is it possible to create an .npy file without allocating the corresponding array in memory first? I need to ... entire array at least once. 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 - Django Framework - Is there a shutdown event that can be subscribed to?

I have a problem which I am hoping might be solved with some form of shutdown hook in Django. I am still ... for any help you can provide See Question&Answers more detail:os...

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

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146 views

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python - Given an AST, is there a working library for getting the source?

Is there a way to convert a given Python abstract syntax tree (AST) to a source code? Here is a good ... the changes can be inspected visually. See Question&Answers more detail:os...

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

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288 views

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python - Implement packing/unpacking in an object

I have a class that only contains attributes and I would like packing/unpacking to work on it. What collections ... to avoid using a namedtuple. See Question&Answers more detail:os...

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

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300 views

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python - Writing a large hdf5 dataset using h5py

At the moment, I am using h5py to generate hdf5 datasets. I have something like this import h5py import numpy as np ... ) of the file. They vary See Question&Answers more detail:os...

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

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168 views

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python - Why doesn’t SQLite3 require a commit() call to save data?

I read somewhere that to save data to a SQLite3 database in Python, the method commit of the connection object ... needed to do this. Why? See Question&Answers more detail:os...

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

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273 views

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python - Numpy: Multiplying a matrix with a 3d tensor -- Suggestion

I have a matrix P with shape MxN and a 3d tensor T with shape KxNxR. I want to multiply P with ... Opinions/Views would be highly 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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265 views

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python - Avoid references in PyYAML

I use YAML with PyYAML. Is there a way to avoid the *id002 references after dumping a nested structure? For ... new tuple with a different id? See Question&Answers more detail:os...

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

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134 views

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python socket GET

From the other posts on stack overflow this should be working import socket s = socket.socket(socket.AF_INET, ... to use the socket library See Question&Answers more detail:os...

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

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359 views

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python - Custom legend in Pandas bar plot (matplotlib)

I have created a bar plot with Pandas where I show how a quantity change for some countries and I set the bar ... types for such type of data. See Question&Answers more detail:os...

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

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513 views

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python - Selenium working with Chrome, but not headless Chrome

I've developed a couple of Python scripts using Selenium and, at first, PhantomJS. While heading toward ... ') inputElement.submit() See Question&Answers more detail:os...

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

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402 views

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python - Installing nltk data dependencies in setup.py script

I use NLTK with wordnet in my project. I did the installation manually on my PC, with pip: pip3 install nltk -- ... 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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166 views

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python - Call functions from re.sub

This is a simple example: import re math='<m>3+5</m>' print re.sub(r'<(.)>(d+?)+(d+?)</1>', int(r'2' ... of 3 and 5. Why? How do I solve 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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203 views

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python - How to merge/combine columns in pandas?

I have a (example-) dataframe with 4 columns: data = {'A': ['a', 'b', 'c', 'd', 'e', 'f'], 'B' ... 2 10 62 11 70 dtype: object Thanks for 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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276 views

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python - Add encoding parameter to logging.basicConfig

How do I add an encoding parameter to logging.basicConfig? I have found this bug report that states that this is now ... can't get it to work. See Question&Answers more detail:os...

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

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176 views

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python - Generate word cloud from single-column Pandas dataframe

I have a Pandas dataframe with one column: Crime type. The column contains 16 different "categories" of crime ... help is gratefully received. See Question&Answers more detail:os...

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

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108 views

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python - Parallel file writing is it efficient?

I would like to know if parallel file writing is efficient. Indeed, a hard disk has one usable read head at ... efficient. Thanks for you light See Question&Answers more detail:os...

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

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295 views

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python - Fast random weighted selection across all rows of a stochastic matrix

numpy.random.choice allows for weighted selection from a vector, i.e. arr = numpy.array([1, 2, 3]) ... do this using only vectorized operations? See Question&Answers more detail:os...

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

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685 views

1 answer

python - Can't open file 'django-admin.py': [Errno 2] No such file or directory

I'm using Python 2.7, Django 1.2.5 and on Windows 7. I am not sure what I've done. I used ... -tk;C:Python27Scripts;C:django-apps;f:my_projects See Question&Answers more detail:os...

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

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398 views

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python - Is it possible to print the decision tree in scikit-learn?

Is there a way to print a trained decision tree in scikit-learn? I want to train a decision tree for my ... in the thesis. Is that possible? See Question&Answers more detail:os...

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

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