Recent questions tagged Python

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python - How do I annotate types in a for-loop

I want to annotate a type of a variable in a for-loop. I tried this: for i: int in range(5): pass ... -annotation works for PyCharm >= 2017.1 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 - DeprecationWarning: invalid escape sequence - what to use instead of d?

I've met a problem with re module in Python 3.6.5. I have this pattern in my regular expression: '\nRevision: ... 0-9]+ or maybe something else? See Question&Answers more detail:os...

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

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344 views

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python - Uploading multiple images in Django admin

I'm currently building a portfolio site for a client, and I'm having trouble with one small area. I want to ... anybody who can shed some 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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207 views

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python - How to remove list of words from a list of strings

Sorry if the question is bit confusing. This is similar to this question I think this the above question is close ... what mistake I'm doing. 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 - Plot matplotlib on the Web

The following code will of course create a PNG named test and save it on the server: from matplotlib.figure ... that creates the image? 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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513 views

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python - How to use custom token model in Django Rest Framework

I'd like to use Django Rest Framework auth but I want to have more than one token for one user ... model. Should I subclass TokenAuthentication? See Question&Answers more detail:os...

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

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255 views

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python - Function local name binding from an outer scope

I need a way to "inject" names into a function from an outer code block, so they are accessible ... Any suggestion is greatly 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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python - How do I install pyPDF2 module using windows?

As a newbie... I am having difficulties installing pyPDF2 module. I have downloaded. Where and how do I ... use module in python interpreter? See Question&Answers more detail:os...

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

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708 views

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python - NLTK collocations for specific words

I know how to get bigram and trigram collocations using NLTK and I apply them to my own corpora. The ... (trigram_measures.pmi): print i See Question&Answers more detail:os...

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

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552 views

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python - change certain squares in a seaborn heatmap

Say I have a heatmap that looks like this (axes are trimmed off): I want to be able to alter certain squares ... . Any ideas on this? 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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407 views

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python - how to cleanly remove ndb properties

in my app i need to remove a few of my models properties. i checked out this link but the first issue is ... how to get this done properly? See Question&Answers more detail:os...

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

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772 views

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python - Calculate Distance to Nearest Feature with Geopandas

I'm looking to do the equivalent of the ArcPy Generate Near Table using Geopandas / Shapely. I'm very new to ... to ArcPy. Thanks for the 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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303 views

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python - Shape recognition with numpy/scipy (perhaps watershed)

My goal is to trace drawings that have a lot of separate shapes in them and to split these shapes into ... great for now! Please 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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391 views

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python - Resetting the expiration time for a cookie in Flask

I'm using the the Python web framework Flask. I use sessions in my app. For my app called main, I've got the ... . How do I do that with Flask? See Question&Answers more detail:os...

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

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384 views

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python - Save File Dialog in Tkinter

I am implementing a GUI based text editor in python. I have displayed the text area but when I try to ... config(menu=menubar) root.mainloop() See Question&Answers more detail:os...

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

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205 views

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python - How can I disable a model field in a django form

I have a model like this: class MyModel(models.Model): REGULAR = 1 PREMIUM = 2 STATUS_CHOICES = ((REGULAR, " ... to accomplish what I'm after? See Question&Answers more detail:os...

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

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493 views

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python - Plotly: Plot multiple figures as subplots

These resources show how to take data from a single Pandas DataFrame and plot different columns subplots on a Plotly graph ... 2, 1) iplot(fig) See Question&Answers more detail:os...

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

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484 views

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python - How do you create a boolean mask for a tensor in Keras?

I am building a custom metric to measure the accuracy of one class in my multi-class dataset during training. I ... boolean mask for a tensor? See Question&Answers more detail:os...

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

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229 views

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python - Pyramid authorization for stored items

I'm trying to create an authorization policy that takes "item" ownership into account. For example some user X "owns" ... . How would 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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305 views

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python - Finding points on a rectangle at a given angle

I'm trying to draw a gradient in a rectangle object, with a given angle (Theta), where the ends of the gradient ... going to be on the origin. See Question&Answers more detail:os...

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

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485 views

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python - pyspark: Create MapType Column from existing columns

I need to creeate an new Spark DF MapType Column based on the existing columns where column name is the key ... can transform the data? 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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370 views

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python - ipython notebook pandas max allowable columns

I have a simple csv file with ten columns! When I set the following option in the notebook and print ... ('display.max_columns', None) See Question&Answers more detail:os...

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

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455 views

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python - How to do Pearson correlation of selected columns of a Pandas data frame

I have a CSV that looks like this: gene,stem1,stem2,stem3,b1,b2,b3,special_col foo,20,10,11,23,22,79 ... 0066556395400007278) How can 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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247 views

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python - Unable to run pyspark

I installed Spark on Windows, and I'm unable to start pyspark. When I type in c:Sparkinpyspark, I get the ... what am I doing wrong 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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810 views

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python - Scikit-learn - feature reduction using RFECV and GridSearch. Where are the coefficients stored?

I am using Scikit-learn RFECV to select most significant features for a logistic regression using a Cross ... for the selected features? See Question&Answers more detail:os...

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

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374 views

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python - TensorFlow - tf.data.Dataset reading large HDF5 files

I am setting up a TensorFlow pipeline for reading large HDF5 files as input for my deep learning models. ... suggestions are more than welcome. 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 - webpy: How to serve JSON

Is it possible to use webpy to serve JSON? I built my website and I need to serve some information in ... to find anything. Thanks, Giovanni 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 integrate SQLAlchemy and a subclassed Numpy.ndarray smoothly and in a pythonic way?

I would like to store NumPy arrays with annotations (like name) via SQLAlchemy within a relational database. To do so, ... .name >>> "new 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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