Recent questions tagged python

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python - Keras plot_model not showing the input layer appropriately

My model is defined as such: model = keras.models.Sequential() model.add(layers.Embedding(max_features, 128, ... it show the input 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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python - Nested transactions with SQLAlchemy and sqlite

I'm writing an application in Python using SQLAlchemy (and Elixir) with SQLite as the database backend. I ... get nested transactions to 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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python - How can I remove multiple characters in a list?

Having such list: x = ['+5556', '-1539', '-99','+1500'] How can I remove + and - in nice ... always in leading position; they can be anywhere. 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 - No module named cv

I'm trying to run this script: https://github.com/openalpr/train-detector/blob/master/crop_plates.py I've ... running Python in Windows 7. 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 - Aggregate all dataframe row pair combinations using pandas

I use python pandas to perform grouping and aggregation across data frames, but I would like to now perform ... Can anyone advise? 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 - Combining 2 dictionaries with common key

I have two dictionaries and need to combine the values of similar keys in them. Here's an example: dict1 ... ,value22,value23,value24,value25]} 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 - Pandas: select rows where two columns are different

Suppose I have a dataframe as below a b c 1 1 45 0 2 74 2 2 54 1 4 44 Now I want the rows where column a and ... 2 74 1 4 44 How can I 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 - Plotting a 2D plane through a 3D surface

I'm trying to visualise a 2D plane cutting through a 3D graph with Numpy and Matplotlib to explain the intuition ... image output by the 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 - Why does this code raise csv.Error?

I'm trying to write out CSV using Python's built-in csv module. import csv import sys writer = csv. ... CSV writer trying to escape something? 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 - Tkinter pyimage doesn't exist

I know there are lot of similar questions, but there aren't any simple enough that I am able to understand. I ... I don't quite understand 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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591 views

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python - VideoWriter outputs corrupted video file

This is my code to save web_cam streaming. It is working but the problem with output video file. import ... .release() cv2.destroyAllWindows() 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 - Sphinx cross referencing breaks for inherited objects imported and documented in a parent module

I'm trying to get my Sphinx documentation build correctly and have cross-references (including those from inherited ... do I fix 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 - How do I annotate a callable with *args and **kwargs?

I have a function which returns a function. I would like to find a proper type annotation. However, the returned ... == "csv": return to_csv See Question&Answers more detail:os...

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

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430 views

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python - How to Install python3.8 on debian 10?

i've installed debian 10.0.4 yesterday on my pc. it had python version 3.7.3 installed on it , so i ... error while installing it (zlib 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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python - SqlAlchemy: filter to match all instead of any values in list?

I want to query a junction table for the value of column aID that matches all values of a list of ids ids=[3,5 ... how can I get to the result? See Question&Answers more detail:os...

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

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578 views

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python - Making a discord bot change playing status every 10 seconds

I'm trying to make the status for a test discord bot change between two messages every ten seconds. I need the ... (*self.args, **self.kwargs) See Question&Answers more detail:os...

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

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358 views

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python - How to avoid double-extracting of overlapping patterns in SpaCy with Matcher?

I need to extract item combination from 2 lists by means of python Spacy Matcher. The problem is following ... matches? Any thoughts appreciate! See Question&Answers more detail:os...

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

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326 views

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python - pytz and Etc/GMT-5

I'm having trouble understanding the conversion between the "Etc/GMT-5" timezone and UTC in pytz. >>> dt = datetime( ... -5. Is this a pytz bug? See Question&Answers more detail:os...

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

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283 views

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python - windows pip installing libraries in wrong directory

I have python 3.5 on windows 7 machine and this machine does not have any other python version. pip comes ... (x86)Python 3.5Libsite-packages See Question&Answers more detail:os...

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

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477 views

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python - How to change index dtype of pandas DataFrame to int32?

A default dtype of DataFrame index is int64 and I would like to change it to int32. I tried changing it with pd. ... I use conda Pandas v0.20.1. See Question&Answers more detail:os...

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

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138 views

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python pandas date time conversion to date

I am looking to convert datetime to date for a pandas datetime series. I have listed the code below: df = ... guide me in 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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python - Getting "error: Unable to find vcvarsall.bat" when running "pip install numpy" on windows7 64bit

I'm running pip install numpy on windows7 64bit and i'm getting error: Unable to find vcvarsall.bat I've ... ]) or by setting the LAPACK_SRC environment variable. warnings.wa...

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

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677 views

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python - How to add multiple QPushButtons to a QTableView?

I have a QTableView to which I want to set a QPushButton for every row. I am doing this as follows within my ... button to each row of a table? 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 - PIL changes pixel value when saving

This is as simple as it gets. Make RGB image, one pixel big. Set pixel value to (a,b,c). Save. Problem ... I prevent it? Please help. 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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768 views

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python decorator TypeError missing 1 required positional argument

I'm trying to write a decorator to repeat an erroring function N times with increasingly sleeping times in ... positional argument: 'func' See Question&Answers more detail:os...

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

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136 views

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python - Function for rotating 2d objects?

Is it possible to write a function in python that could rotate any 2d structure with the arguments being ... examples would be 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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166 views

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python - Strange redirection effect with raw_input

According to the manual, raw_input writes to stdout. I have this little program (test_raw_input.py): # Test if ... xxx. 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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203 views

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python - Speed up sampling of kernel estimate

Here's a MWE of a much larger code I'm using. Basically, it performs a Monte Carlo integration over a KDE ( ... error: can't start new thread See Question&Answers more detail:os...

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

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