Recent questions tagged Python

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All tutorials simply import tkinter, I am wondering, though, why not import _tkinter? If my understanding is ... python black magic afoot. 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 get an array from RGB values of a bitmap image?

I am running this code from PIL import Image import numpy as np im = Image.open("/Users/Hugo/green_leaves.jpg") ... 'asarray' Could you help me? 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 - FileNotFoundError: [Errno 2] when packaging for PyPI

I have uploaded a simple python package in https://test.pypi.org. When I download this with pip and try yo run ... = ["lable", "body_text"] 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 - Workaround for datetime timestamp() on Windows for dates preceeding 1970-01-01

I am currently trying to generate numerical features in a dataset by converting the dates to timestamps. If run on ... out how to integrate 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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python - TensorFlow assign Tensor to Tensor with array indexing

I would like to do something like this piece of Numpy code, just in TensorFlow: a = np.zeros([5, 2]) ... this should still be possible somehow. 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 override ipython displayhook?

I have defined my own displayhook that inherits from IPython.core.displayhook.DisplayHook. I was unable to find ... at 0x7f1491853610> 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 - Difference between datetime.combine() and pytz.localize()

I am a bit puzzled by the following behavior. Suppose I use datetime.combine() to construct a timezone-aware ... questions are here or 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 - BeautifulSoup' has no attribute 'HTML_ENTITIES

I have recently upgrade BeautifulSoup from version 3.0 to version 4.1 on a Windows machine. I am now getting a ... v4. How may 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 - Appending a matrix to an existing file using numpy

I'm trying to add a matrix to an existing csv file. Following this link, I wrote the following code, f_handle = ... seems to be. 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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python - Django UUIDField modelfield causes error in Django admin: badly formed hexadecimal UUID string

I have a Django 1.8 project and on one of my models, I am using the new UUIDField like so: class ... list of object instances. Any thoughts? 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 - Using pop for removing element from 2D array

In the below random array: a = [[1,2,3,4], [6,7,8,9]] Could you please tell me how to remove element ... pop is used for only list type DS 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 - Combobox fontsize in tkinter

Hi I am trying to use the ttk Combobox to create a dropdown with options . While doing so i can configure ... Application(root) 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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python - Opening already opened file does not raise exception

Consider those two python programs: script_a.py: from datetime import datetime from time import sleep while True: ... a more pythonic way? 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 - PyTorch Autograd automatic differentiation feature

I am just curious to know, how does PyTorch track operations on tensors (after the .requires_grad is set as ... idea behind autograd. 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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639 views

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python - Running a command on Window minimization in Tkinter

I have a Tkinter window whenever the minimize button is pressed I'd like to run a command, how do I do this? I ... ) will run a command on exit. See Question&Answers more detail:os...

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

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625 views

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python - Setting focus on QlineEdit widget

I am trying to put together a simple widget where the focus is automatically put to a QLineEdit widget (It is ... haven't stumbled upon it yet. See Question&Answers more detail:os...

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

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619 views

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python - Cannot install ggplot with anaconda

I want to be able to use geom_smooth in ggplot. However, when I typed conda install ggplot, I get the error ... Anyone know what is going on? See Question&Answers more detail:os...

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

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541 views

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python - Pandas group by index and calculate sum

I have the following dataframe: Node Type 0 InData 2944.516970 InInterests 3703.208935 1 InData 6207.580040 ... Can anybody help please? See Question&Answers more detail:os...

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

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567 views

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python - How to parse nagios status.dat file?

I'd like to parse status.dat file for nagios3 and output as xml with a python script. The xml part is the ... can have any number of services. See Question&Answers more detail:os...

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

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488 views

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python - Index entire array backwards in for loop

Suppose I would like to loop over an array and within the loop index the array forward and backward for all of ... pythonic way of doing 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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541 views

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python - How to group dataframe by hour using timestamp with Pandas

I have the following dataframe structure that is indexed with a timestamp: neg neu norm pol pos date time ... hour where the grouby started. See Question&Answers more detail:os...

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

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575 views

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python - WARNING:tensorflow:Layer my_model is casting an input tensor from dtype float64 to the layer's dtype of float32, which is new behavior in TensorFlow 2

Before my Tensorflow neural network starts training, the following warning prints out: WARNING:tensorflow:Layer ... error.reset_states() See Question&Answers more detail:os...

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

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545 views

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python 3.x - Pandas `.to_pydatetime()` not working inside a DataFrame

I have strings like '03-21-2019' that I want to convert to the native Python datetime object: that is, of the ... read out of the pd.DataFrame. See Question&Answers more detail:os...

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

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601 views

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python - Is there function that can remove the outliers?

I find a function to detect outliers from columns but I do not know how to remove the outliers ... ']) print(outlier_datapoints) See Question&Answers more detail:os...

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

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590 views

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python - How to execute SELECT * LIKE statement with a placeholder in sqlite?

I've got an argument tag and I perfomed this way: cursor.execute("SELECT * FROM posts WHERE tags LIKE '%?%'", ( ... tell me how to fix it. Thx ! See Question&Answers more detail:os...

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

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892 views

1 answer

python - A .py file which compiled from .qrc file( using pyside-rcc ) does not work

I am working on python project and I have a problem with my .py file which complied from .qrc file. First, ... use PySide as my GUI language. See Question&Answers more detail:os...

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

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464 views

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python - App Engine Bulk Loader Performance

I am using the App Engine Bulk loader (Python Runtime) to bulk upload entities to the data store. The data ... i can get any more throughput. See Question&Answers more detail:os...

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

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899 views

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python - Scrapy installed, but won't recognized in the command line

I installed Scrapy in my python 2.7 environment in windows 7 but when I trying to start a new Scrapy ... question is not duplicate of 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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