Recent questions tagged Python

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python - How to use flask-sqlalchemy with existing sqlalchemy model?

I've read flask-sqlalchemy or sqlalchemy which recommends use of flask-sqlalchemy with flask. I want to ... use sqlalchemy's ScopedSession? 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 can I speed up an animation?

I'm trying to create a Matplotlib animation of my paw data, where you can see the pressure distribution on the ... to one of the ASCII files. 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 - Help installing cx_Oracle

I'm trying to install the cx_Oracle for Python 2.6, but it is failing. I don't know enough about C or ... and it will map to C:python26python 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 run bash script file in Airflow

I have a bash script that creates a file (if it does not exist) that I want to run in ... .exceptions.AirflowException: Bash command failed 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 - Retrieve page numbers from document with pyPDF

At the moment I'm looking into doing some PDF merging with pyPdf, but sometimes the inputs are not in the ... point me in the right direction? See Question&Answers more detail:os...

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

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353 views

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python - What are levels in a pandas DataFrame?

I've been reading through the documentation and many explanations and examples use levels as something taken for ... in a MultiIndex index? 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 change app name in Django admin?

I created 'frontend' application using ./manage.py startproject frontend But for some reason I just want to ... models.Model): #field 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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python - Dumping a multiprocessing.Queue into a list

I wish to dump a multiprocessing.Queue into a list. For that task I've written the following function: import ... all the items being dumped? 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 apply integration tests to a Flask RESTful API

[As per https://stackoverflow.com/a/46369945/1021819, the title should refer to integration tests rather than unit ... of the second response? 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 convert a string from CP-1251 to UTF-8?

I'm using mutagen to convert ID3 tags data from CP-1251/CP-1252 to UTF-8. In Linux there is no problem. But on ... ...But I get the same 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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299 views

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python - Most elegant way to modify elements of nested lists in place

I have a 2D list that looks like this: table = [['donkey', '2', '1', '0'], ['goat', '5', '3 ... there some way to get a more Pythonic 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 - Mongoengine creation_time attribute in Document

I am trying to add a creation_time attribute to my documents. The following would be an example: import datetime class ... a better, nicer 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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377 views

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python - Pandas rolling regression: alternatives to looping

I got good use out of pandas' MovingOLS class (source here) within the deprecated stats/ols module. Unfortunately, ... 000655 -0.016811 0.001546 See Question&Answers more detail:os...

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

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241 views

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python - Create object from class in separate file

I have done several tutorials on Python and I know how to define classes, but I don't know how to use them. ... in the same package (folder)? See Question&Answers more detail:os...

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

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336 views

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python - Use keras(TensorFlow) to build a Conv2D+LSTM model

The data are 10 videos and each videos split into 86 frames and each frame has 28*28 pixels, video_num = 10 ... use these two before? 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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224 views

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python - How to create an internationalized Google App Engine application

I would like to provide my Python GAE website in the user's own language, using only the tools available ... me advance on this 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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250 views

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python - Storing Images In DB Using Django Models

I am using Django for creating one Web service and I want that web service to return Images. I am deciding ... Web services and Django 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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254 views

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python - Interoperating with Django/Celery From Java

Our company has a Python based web site and some Python based worker nodes which communicate via Django/Celery ... and Celery working together? See Question&Answers more detail:os...

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

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245 views

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python - Issue NaN with Adam solver

I'm training networks with the Adam solver and ran into the problem, that optimization hits 'nan' at some ... , which caused numerical problems. See Question&Answers more detail:os...

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

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235 views

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python - How to start a long-running process from a Django view?

I need to run a process that might take hours to complete from a Django view. I don't need to know the ... ? Or am I doing something wrong? See Question&Answers more detail:os...

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

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327 views

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python - Robust Algorithm to detect uneven illumination in images [Detection Only Needed]

One of the biggest challenges in tesseract OCR text recognition is the uneven illumination of images. I need an ... fails. 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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412 views

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python - Keras model.fit() with tf.dataset API + validation_data

So I have got my keras model to work with a tf.Dataset through the following code: # Initialize batch ... This doesn't introduce any overhead See Question&Answers more detail:os...

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

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253 views

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python - Find dictionary keys with duplicate values

some_dict = {"firstname": "Albert", "nickname": "Albert", "surname": "Likins", "username": "Angel"} I ... some_dict.keys(k): a_list.append(k) See Question&Answers more detail:os...

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

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564 views

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python - Pandas: flag consecutive values

I have a pandas series of the form [0, 1, 0, 1, 1, 1, 0, 0, 1, 1, 0, 1, 0 , 0 , ... (recession_end) Is the a more pandas centric approach? Leon See Question&Answers more detail:os...

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

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314 views

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python - Count of elements in lists within pandas data frame

I need to get the frequency of each element in a list when the list is in a pandas data frame columns In ... a more efficient/direct way. 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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296 views

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python __str__ for an object

While trying to figure out how BeautifulSoup works, I incidentally learnt the __str__ method (I'm new to python). So ... . How can I achieve 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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666 views

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python - Change logging "print" function to "tqdm.write" so logging doesn't interfere with progress bars

I have a simple question: How do I change the built-in Python logger's print function to tqdm.write such that ... tqdm's progress bars? 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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314 views

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python - Shorter alternative for 'lambda' keyword?

Background: Python is about simplicity and readable code. It has gotten better over the versions and I ... from myfuture import lambda_operator See Question&Answers more detail:os...

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

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