Recent questions tagged Python

0 votes

269 views

1 answer

python - What's the meaning of pool_connections in requests.adapters.HTTPAdapter?

When initializing a requests' Session, two HTTPAdapter will be created and mount to http and https. This ... using multiple connection pools? See Question&Answers more detail:os...

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

0 votes

299 views

1 answer

python - Flask: Decorator to verify JSON and JSON Schema

I have a flask application with calls expecting JSON payload. Before each call is processed, I have a 2 ... checks using Python decorators? See Question&Answers more detail:os...

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

0 votes

406 views

1 answer

python - how do I get the subtrees of dendrogram made by scipy.cluster.hierarchy

I had a confusion regarding this module (scipy.cluster.hierarchy) ... and still have some ! For example we have ... of tree objects as inputs? See Question&Answers more detail:os...

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

0 votes

367 views

1 answer

python - read slave , read-write master setup

I have a Flask,SQLAlchemy webapp which uses a single mysql server. I want to expand the database setup to have ... off ? Thanks in advance. See Question&Answers more detail:os...

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

0 votes

694 views

1 answer

python - tkinter app adding a right click context menu?

I have a python-tkinter gui app that I've been trying to find some way to add in some functionality. I was ... gtk or some other gui-toolkit? See Question&Answers more detail:os...

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

0 votes

323 views

1 answer

python - Django Left Outer Join

I have a website where users can see a list of movies, and create reviews for them. The user should be able to see the list ... --- A 1 B 5 C 3 See Question&Answers more detail:os...

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

0 votes

127 views

1 answer

python - How to work with multiple inputs for LSTM in Keras?

I'm trying to predict the water usage of a population. I have 1 main input: Water volume and 2 secondary ... to the previous time step. See Question&Answers more detail:os...

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

0 votes

433 views

1 answer

python - Group by two columns and count the occurrences of each combination in Pandas

I have the following data frame: data = pd.DataFrame({'user_id' : ['a1', 'a1', 'a1', 'a2','a2','a2' ... , i need to use the column later. See Question&Answers more detail:os...

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

0 votes

273 views

1 answer

python - Quadratic Program (QP) Solver that only depends on NumPy/SciPy?

I would like students to solve a quadratic program in an assignment without them having to install extra software ... depends on NumPy/SciPy? See Question&Answers more detail:os...

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

0 votes

354 views

1 answer

python - Ranking order per group in Pandas

Consider a dataframe with three columns: group_ID, item_ID and value. Say we have 10 itemIDs total. I need to rank ... A6 6 9 0S03jpFRaC AX 7 See Question&Answers more detail:os...

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

0 votes

157 views

1 answer

python - What can you do with Lisp macros that you can't do with first-class functions?

I think I understand Lisp macros and their role in the compilation phase. But in Python, you can pass a ... functions as first class objects? See Question&Answers more detail:os...

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

0 votes

377 views

1 answer

python - How to keep multiple independent celery queues?

I'm trying to keep multiple celery queues with different tasks and workers in the same redis database. Really ... nothing has been specified? See Question&Answers more detail:os...

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

0 votes

119 views

1 answer

python - How to create a draggable legend in matplotlib?

I'm drawing a legend on an axes object in matplotlib but the default positioning which claims to place it in a smart ... . How can this be done? See Question&Answers more detail:os...

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

0 votes

975 views

1 answer

python - Boxplot of Multiple Columns of a Pandas Dataframe on the Same Figure (seaborn)

I feel I am probably not thinking of something obvious. I want to put in the same figure, the box plot ... reproduce the same figure in seaborn? See Question&Answers more detail:os...

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

0 votes

209 views

1 answer

python - What is "backlog" in TCP connections?

Below, you see a python program that acts as a server listening for connection requests to port 9999: # server ... UDP and other protocols too? See Question&Answers more detail:os...

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

0 votes

183 views

1 answer

python - PCA For categorical features?

In my understanding, I thought PCA can be performed only for continuous features. But while trying to understand the ... suggest me on the same. See Question&Answers more detail:os...

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

0 votes

329 views

1 answer

python - Multiple mod_wsgi apps on one virtual host directing to wrong app

I'm trying to get two (or more) Django applications set up at subdirectories under the same domain, e.g.: ... here, that would be phenomenal! See Question&Answers more detail:os...

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

0 votes

498 views

1 answer

python - import vs __import__( ) vs importlib.import_module( )?

I noticed Flask was using Werkzeug to __import__ a module, and I was a little confused. I went and checked out ... didn't address this at all. See Question&Answers more detail:os...

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

0 votes

409 views

1 answer

python - File "/usr/bin/pip", line 9, in <module> from pip import main ImportError: cannot import name main

I am trying to run a webpage using python flask and connecting it with the database of MySQL and while installing ... this on ec2 Linux AWS. See Question&Answers more detail:os...

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

0 votes

360 views

1 answer

python - Logging hierarchy vs. root logger?

Somewhere in the bowels of my code I have something like: logger = logging.getLogger('debug0.x') The way I ... been named. I'm confused. See Question&Answers more detail:os...

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

0 votes

390 views

1 answer

python - how to add a coroutine to a running asyncio loop?

How can one add a new coroutine to a running asyncio loop? Ie. one that is already executing a set of coroutines ... But is there a better way? See Question&Answers more detail:os...

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

0 votes

276 views

1 answer

python - TensorFlow: Blas GEMM launch failed

When I'm trying to use TensorFlow with Keras using the gpu, I'm getting this error message: C:Users icolAnaconda3envsensorflowlibsite- ... -------------------- InternalErr...

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

0 votes

645 views

1 answer

python - Matplotlib - How to make the marker face color transparent without making the line transparent

I know how to set the transparency of a line in matplotlib. For example, the following code makes the line ... done in matplotlib? Thank you. See Question&Answers more detail:os...

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

0 votes

477 views

1 answer

python - secret key not set in flask session, using the Flask-Session extension

Right now I am using a flask 3rd party library Flask-Session and I am having no luck getting a session ... to something unique and secret. See Question&Answers more detail:os...

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

0 votes

152 views

1 answer

python - How to write bytes to file?

I have a function that returns a string. The string contains carriage returns and newlines (0x0D, 0x0A). However when ... .write(msg) f.close() See Question&Answers more detail:os...

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

0 votes

419 views

1 answer

python - How to suppress py.test internal deprecation warnings

Is there a way to suppress the pytest's internal deprecation warnings? Context: I'm looking to evaluate the ... of turning these warnings off? See Question&Answers more detail:os...

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

0 votes

120 views

1 answer

python - pyvenv not working because ensurepip is not available

I upgraded from ubuntu 14.04 to ubuntu 16.04 a few days ago. When I try to create a virtual env by using ... but it did not solve my problem. See Question&Answers more detail:os...

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

0 votes

303 views

1 answer

python - Where should utility functions live in Django?

Where should utility functions live in Django? Functions like custom encrypting/decrypting a number, sending tweets, ... need these functions? See Question&Answers more detail:os...

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

Categories

Just Browsing Browsing

Most popular tags