Recent questions tagged Python

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python - "No installed app with label 'admin'" in empty Django 2.2 project

I am starting a new project in Django 2.2 using the same commands as I always do: python3 -m venv django-env ... light as to what is happening? 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 a list to json objects

I have a huge text file. line 1 line 2 line 3 ... I have converted it into an array of lists: [['String 1' ... not sure how to do it. 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 - error: (-215) ssize.width > 0 && ssize.height > 0 in function resize

I am building an image processing classifier. This line is giving me an error: input_img_resize=cv2. ... img_data_list.append(input_img_resize) 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 - attributeerror: module 'cv2.face' has no attribute 'createlbphfacerecognizer'

So i'm doing a little personal project but i keep getting this error when I try to create the recognizer. i ... and running the exact same code. 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 - sendMessage from outside in autobahn running in separate thread

I want to call sendMessage method from outside of MyServerProtocol class and send a message to connected clients. ... protocol class? 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 - How to stop audio with playsound module?

How do I stop the audio playing through playaudio module in Python code? I have played music but I can ... ? playsound.playsound("name_of_file") 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 - Pydoc is not working (Windows XP)

Using Windows XP and Python 2.7 I tried to run "pydoc" through the terminal. unfortunately it doesn't work. ... to scared to learn Linux). 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 exit cleanly from flask and waitress running as a windows pywin32 service

I have managed to cobble together a working demo of a pywin32 windows service running flask inside the ... ': SMWinservice.parse_command_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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189 views

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python - can't installing lxml on Ubuntu 12.04

I've been trying to install lxml using pip install lxml and I get the error below. I've used apt-get install python-dev ... /lxml/src/lxml/includes -I/usr/include/python2.7 -c src/...

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

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python - How would I get psycopg2 logging of query execution time?

I'm trying to get the performance statistics on queries executed by psycopg2, but the documentation / examples still ... : [the query executed] 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 DataFrame: normalize one JSON column and merge with other columns

I have a pandas DataFrame containing one column with multiple JSON data items as list of dicts. I want to ... column of the original DataFrame. See Question&Answers more detail:os...

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

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163 views

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python - Initializing Cython objects with existing C Objects

C++ Model Say I have the following C++ data structures I wish to expose to Python. #include <memory> ... task idiomatically in Cython? 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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386 views

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python - caching sha2 password is not supported mysql

i'm trying to get my python program to insert data into MySQL and i followed a guide however i keep getting the ... ) cursor.close() cnx.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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714 views

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python - How can I list all foreign key related objects in Django admin panel?

I would like to implement a very simple feature with the django admin panel but I couldn't find the right way ... all books of the author. See Question&Answers more detail:os...

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

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911 views

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python - How to make circular progress bar in kivy?

I thought to make one simple circular progress bar using kivy and python. I searched online documentation and GitHub ... help me in this issue. See Question&Answers more detail:os...

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

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574 views

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python - ImportError: cannot import name 'BlobService' when using Azure Backend

I followed these instructions to set up Azure as my backend service: http://django-storages.readthedocs.io/en/latest/ ... .0 msrestazure==0.4.14 See Question&Answers more detail:os...

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

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475 views

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python - How do the count the number of sentences, words and characters in a file?

I have written the following code to tokenize the input paragraph that comes from the file samp.txt. Can ... tokenized words from samp.txt See Question&Answers more detail:os...

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

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415 views

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python - How can I create a Matlab struct array from scipy.io?

Consider the following Matlab code: pmod(1).name{1} = 'regressor1'; pmod(1).param{1} = [1 2 4 5 6] ... , dtype=object)), to no avail. 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 list of dictionaries find duplicates based on value

I have a list of dicts: a =[{'id': 1,'desc': 'smth'}, {'id': 2,'desc': 'smthelse'}, {'id': 1,'desc': ... ]}, {'id': 2, 'desc': 'smthelse'}] See Question&Answers more detail:os...

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

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508 views

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python - nltk regular expression tokenizer

I tried to implement a regular expression tokenizer with nltk in python, but the result is this: >>> import nltk ... Why? Where is the mistake? See Question&Answers more detail:os...

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

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206 views

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python - A value is trying to be set on a copy of a slice from a DataFrame

I have a dataframe column period that has values by Quarters(Q1,Q2,Q3,Q4) that I want to convert into associated ... '].astype(str).map(quarter) 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 - Converting a float to hh:mm format

I want to print a float value that I've got after performing some math as time string in the hh:mm format ... , and outputs the wrong 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 - subprocess.Popen with a unicode path

I have a unicode filename that I would like to open. The following code: cmd = u'cmd /c "C:\Pokxe9mon.mp3" ... do exist. Why is this happening? 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 - Monitoring JSON wire protocol logs

According to the selenium documentation, interactions between the webdriver client and a browser is done via JSON ... happy with any pointers. See Question&Answers more detail:os...

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

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563 views

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python - How to create a filter for QTableWidget?

I'm trying to create a filter for QTableWidget with QLineEdit in PySide. I've seen some tutorials using ... search in 'VALUE' column. See Question&Answers more detail:os...

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

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515 views

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python - Using scipy.interpolate.interpn to interpolate a N-Dimensional array

Suppose I have data that depends on 4 variables: a, b, c and d. I want interpolate to return a 2D array ... the other is the horizontal axis. See Question&Answers more detail:os...

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

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277 views

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python - On fit_generator() / fit() and thread-safety

Context In order to use fit_generator() in Keras I use a generator-function like this pseudocode-one: def ... using a generator as well. See Question&Answers more detail:os...

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

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306 views

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python - SQLAlchemy: how to filter on PgArray column types?

In pure postgres we can write: SELECT * FROM my_table WHERE 10000 = ANY (array_field); or SELECT * FROM ... of sqlalchemy without raw sql? See Question&Answers more detail:os...

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

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