Recent questions tagged Python

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python - Is there an alternate for the now removed module 'nltk.model.NGramModel'?

I've been trying to find out an alternative for two straight days now, and couldn't find anything relevant. I ... of 'scoring' the sentence. 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 - cosine similarity on large sparse matrix with numpy

The code below causes my system to run out of memory before it completes. Can you suggest a more efficient means of ... on a 64 gb EC2 instance. See Question&Answers more detail:os...

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

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539 views

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python - Search Sqlite Database - All Tables and Columns

Is there a library or open source utility available to search all the tables and columns of an Sqlite database? ... files for a specific string. 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 - Applying callbacks in a custom training loop in Tensorflow 2.0

I'm writing a custom training loop using the code provided in the Tensorflow DCGAN implementation guide. I wanted ... (generator, epochs, seed) 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 ForeignKey which does not require referential integrity?

I'd like to set up a ForeignKey field in a django model which points to another table some of the time. ... this what Generic relations are for? See Question&Answers more detail:os...

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

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359 views

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python - How can I get non-blocking socket connect()'s?

I have a quite simple problem here. I need to communicate with a lot of hosts simultaneously, but I do not ... I really need to use threads? 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 Numba be used with Tensorflow?

Can Numba be used to compile Python code which interfaces with Tensorflow? I.e. computations outside of the Tensorflow ... on how 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 - Encode MIMEText as quoted printables

Python supports a quite functional MIME-Library called email.mime. What I want to achieve is to get a MIME ... printables in the mime-message? 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 - Set of all subsets

In Python2 I could use def subsets(mySet): return reduce(lambda z, x: z + [y + [x] for y in z] ... equally concise rewrite of this for Python3? 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 make text wrapping match current indentation level in vim?

Does anyone know of a way to get vim to wrap long lines of text such that the position of the wrapped text is based ... of vim I have to use.) 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 - Access-Control-Allow-Origin header on Google App Engine

I have a website hosted on App Engine (python2.7) and a linked blogger on the subdomain. I use shared ... import to work correctly in Firefox? See Question&Answers more detail:os...

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

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636 views

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python - Draw a separator or lines between subplots

I have plot four subplots in one figure and they shares xaxis with each other. However, there is no separator between those ... ------------- 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 - Import error with spacy: "No module named en"

I'm having trouble using the Python spaCy library. It seems to be installed correctly but at from spacy.en ... supposed to download some models) See Question&Answers more detail:os...

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

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554 views

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python - Apply function on cumulative values of pandas series

Is there an equivalent of rolling_apply in pandas that applies function to the cumulative values of a series rather ... apply a custom function. See Question&Answers more detail:os...

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

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236 views

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python - Flask not getting any data from jQuery request data

I've a handler for a URL, @app.route("/", methods=['POST']) @crossdomain(origin='*') def hello(): ... xhr.responseText) }}) nothing is returned See Question&Answers more detail:os...

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

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424 views

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python - reload (update) a module file in the interpreter

Let's say I have this python script script.py and I load it in the interpreter by typing import script and then ... . What should I do instead? 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 - How do I launch a file in its default program, and then close it when the script finishes?

Summary I have wxPython GUI which allows the user to open files to view. Currently I do this with os.startfile(). ... this be done with Popen()? See Question&Answers more detail:os...

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

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516 views

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python - How to install Matplotlib's basemap?

It is unclear to me how to install Matplotlib's Basemap on Windows. Maybe the question is straightforward, I need ... but it does not work. See Question&Answers more detail:os...

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

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284 views

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python - replace rows in a pandas data frame

I want to start with an empty data frame and then add to it one row each time. I can even start with a 0 data ... each time. 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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278 views

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python - JS dataTables from pandas

I want to use pandas dataFrames with dataTables. I cannot figure out how to initialize the table without an id. Is ... when I call df.to_html()? See Question&Answers more detail:os...

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

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429 views

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python - matplotlib: generate a new graph in a new window for subsequent program runs

I have a Python program that generates graphs using matplotlib. I am trying to get the program to generate a bunch of ... Any way I can 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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736 views

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python - Tensor objects are not iterable when eager execution is not enabled. To iterate over this tensor use tf.map_fn

I am trying to create my own loss function: def custom_mse(y_true, y_pred): tmp = 10000000000 a = list( ... error. 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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255 views

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python - Crop a PNG image to its minimum size

How to cut off the blank border area of a PNG image and shrink it to its minimum size using Python? 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 - Can I inspect a sqlalchemy query object to find the already joined tables?

I'm trying to programmatically build a search query, and to do so, I'm joining a table. class User(db. ... Any help is incredibly 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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735 views

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python - from Crypto import Random -> ImportError: cannot import name Random

I have installed pycrypto (version 2.3) to /usr/local/lib/python2.6/dist-packages/Crypto/ and I am able to see ... ', '__init__.py', 'Cipher'] See Question&Answers more detail:os...

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

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781 views

1 answer

python - Distance calculation between rows in Pandas Dataframe using a distance matrix

I have the following Pandas DataFrame: In [31]: import pandas as pd sample = pd.DataFrame({'Sym1': ['a','a','a',' ... .01 Item4 2.68 1.34 2.01 0 See Question&Answers more detail:os...

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

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385 views

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python - Operating-system specific requirements with pip

Is it possible to have OS specific requirements in pip's requirements.txt file? For example: I have a dependency ... want to force an install. See Question&Answers more detail:os...

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

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433 views

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python - Plot with non-numerical data on x axis (for ex., dates)

I'd like to plot numerical data against non numerical data, say something like this: import matplotlib.pyplot as pl ... it directly (as 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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