Recent questions tagged Python

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python - Google Colab is very slow compared to my PC

I've recently started to use Google Colab, and wanted to train my first Convolutional NN. I imported the ... method to import the database. 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 - Distinguishing overfitting vs good prediction

These are questions on how to calculate & reduce overfitting in machine learning. I think many new to machine ... know them all. 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 send an email through gmail without enabling 'insecure access'?

Google are pushing us to improve the security of script access to their gmail smtp servers. I have no problem with ... with, I'll be grateful. 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 - PyPI is slow. How do I run my own server?

When a new developer joins the team, or Jenkins runs a complete build, I need to create a fresh virtualenv ... won't help all dependencies 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 - In numpy, what does selection by [:,None] do?

I'm taking the Udacity course on deep learning and I came across the following code: def reformat(dataset, labels) ... :,None] actually do 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 - Truncate a string without ending in the middle of a word

I am looking for a way to truncate a string in Python that will not cut off the string in the middle of a ... the "smart" truncate from above. 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 - Check if geo-point is inside or outside of polygon

I am using python and I have defined the latitudes and longitudes (in degrees) of a polygon on the map. My goal ... files which I do not have. 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 - Debugging a pyQT4 app?

I have a fairly simple app built with pyqt4. I wanted to debug one of the functions connected to one of 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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python - Hiding Axis Labels

I'm trying to hide the axis labels on the first subplot at 211. I'd like to label the figure, not just a ... ().pack() Thank you 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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python - Why do I get only one parameter from a statsmodels OLS fit

Here is what I am doing: $ python Python 2.7.6 (v2.7.6:3a1db0d2747e, Nov 10 2013, 00:42:54) [GCC ... !? The intercept and the slope coefficient? 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 - View pdf image in an iPython Notebook

The following code allows me to view a png image in an iPython notebook. Is there a way to view pdf image? I ... /my_plot.png')) fig Thank you. 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 I prevent fabric from prompting me for a sudo password?

I am using Fabric to run commands on a remote server. The user with which I connect on that server has ... there a workaround for 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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python - What is the inverse of regularization strength in Logistic Regression? How should it affect my code?

I am using sklearn.linear_model.LogisticRegression in scikit learn to run a Logistic Regression. C : float, ... What is regularization strength? 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 - Inheritance best practice : *args, **kwargs or explicitly specifying parameters

I often find myself overwriting methods of a parent class, and can never decide if I should explicitly ... without touching other 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 - Django REST Framework - Separate permissions per methods

I am writing an API using Django REST Framework and I am wondering if can specify permissions per method when using ... method of a view class? See Question&Answers more detail:os...

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

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356 views

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python - What is the correct way to make my PyQt application quit when killed from the console (Ctrl-C)?

What is the correct way to make my PyQt application quit when killed from the console (Ctrl-C)? Currently (I have ... . How should I do that? 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 count rows with SELECT COUNT(*) with SQLAlchemy?

I'd like to know if it's possible to generate a SELECT COUNT(*) FROM TABLE statement in SQLAlchemy without ... rows in table using SQLAlchemy. 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 ConfigParser.items('') to dictionary

How can I convert the result of a ConfigParser.items('section') to a dictionary to format a string like here: ... % config.items('db') 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

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python - Argparse: how to handle variable number of arguments (nargs='*')

I thought that nargs='*' was enough to handle a variable number of arguments. Apparently it's not, and I don ... arguments... Why is that? 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 - Create constants using a "settings" module?

I am relatively new to Python. I am looking to create a "settings" module where various application-specific ... : cannot import name CONSTANT See Question&Answers more detail:os...

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

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361 views

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python - How to properly use the "choices" field option in Django

I'm reading the tutorial here: https://docs.djangoproject.com/en/1.5/ref/models/fields/#choices and i'm ... the months and submits the form? 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: no module named pylab

I am new to Python and want to use its plot functionality to create graphs. I am using ubuntu 12.04. I followed ... me what I am missing 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 - Is there any difference between django.conf.settings and import settings?

What is the basic difference between the following import statements in a Django app? import settings and from django.conf import settings See Question&Answers more detail:os...

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

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291 views

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python - How can I use a pip requirements file to uninstall as well as install packages?

I have a pip requirements file that changes during development. Can pip be made to uninstall packages that do not ... .com/pypa/pip/issues/716 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 - Plt.show shows full graph but savefig is cropping the image

My code is succesfully saving images to file, but it is cropping important details from the right hand side. ... is file produced from savefig: See Question&Answers more detail:os...

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

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333 views

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python - Add a dynamic form to a django formset using javascript in a right way

How to add a dynamic form to a django formset in templates without annoying copies of html template output? I have ... by pressing on a button. 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 - Pythonic way to correctly separate Model from application using SQLAlchemy

I'm having a hard time to make my application run. Flask-SQLAlchemy extension creates an empty database whenever ... in the same package? See Question&Answers more detail:os...

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

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216 views

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python - Scrapy, scraping data inside a Javascript

I am using scrapy to screen scrape data from a website. However, the data I wanted wasn't inside the html ... you dont have time for 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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