Recent questions tagged Python

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python - Django: how to validate m2m relationships?

Let's say I have a Basket model and I want to validate that no more than 5 Items can be added to it: ... model. How can I validate them then? 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 - MySqlDb throws Operand should contain 1 column(s) on insert ignore statement

While looking at some of the websocket methods that stack exchange offers, I wanted to save a few data ... clean before passing to executemany? 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 - Emulating deprecated seaborn distplots

Seaborn distplot is now deprecated and will be removed in a future version. It is suggested to use histplot ... of the deprecated distplot? 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 - $pip command gets ImportError: No module named typing

When I am trying to run the following command: $ pip I get: Traceback (most recent call last): File "/usr/bin/pip ... $ python3 -V Python 3.5.2 See Question&Answers more detail:os...

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

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657 views

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python - Karatsuba Multiplication Implementation

I recently implemented Karatsuba Multiplication as a personal exercise. I wrote my implementation in Python following the ... what's 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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483 views

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python - converting the difference in vectors to between 0 and 1

I'm working with two unit vectors but not sure how to calculate this. I need it so that if they point in ... Thank you for any help with 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 to display some text in pygame?

I am currently on a pygame project and wanted to display some text. I have done this before in another program and ... y)) plz help I am stuck 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 - UnboundLocalError: local variable referenced before assignment why LEGB Rule not applied in this case

Hi I am little confused about scoping of variables in python. kindly explain difference between below snipts. i) ... explain. Thanks 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 - Getting style of <tr> tag using BeautifulSoup

I'm scraping a page and from a table on that page I'm getting all <tr> elements like so: r = requests.get( ... hasn't resulted in what I want. 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 - blender import/export script

I should create a python script for Blender that imports obj and exports obj removing all texture sections. I ... this simple task? 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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494 views

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python - Elegant and Efficient way retain date values as is without OOB error

I have a dataframe which is like as shown below df1_new = pd.DataFrame({'person_id': [1, 1, 3, 3 ... shown below. updated try/except screenshot See Question&Answers more detail:os...

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

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521 views

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python - Merge files with similar name convention to a dataframe

I have a list of files stored in directory such as filenames=[ abc_1.txt abc_2.txt abc_3.txt bcd_1.txt bcd_2. ... . Can someone help wih 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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774 views

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python - pandas: rename axis in df

I have a df which looks like this: Column 1 Channel Apples 1.0 Oranges 2.0 Puppies 3.0 Ducks 4.0 I ... TypeError: 'str' object is not callable See Question&Answers more detail:os...

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

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879 views

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python - How to get a list of elements out of a PCollection in Google Dataflow and use it in the pipeline to loop Write Transforms?

I am using Google Cloud Dataflow with the Python SDK. I would like to : Get a list of unique dates out of a ... best way to do that ? 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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954 views

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python 3.x - Convert floats to ints of a column with numbers and nans

I'm working with Python 3.6 and Pandas 1.0.3. I would like to convert the floats from column "A" to int.. ... ') print(df) Did I miss 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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612 views

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python - How to get the last N lines of a subprocess' stderr stream output?

I am a Python newbie writing a Python (2.7) script that needs to exec a number of external applications, one of ... a log file or emailed, etc. See Question&Answers more detail:os...

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

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710 views

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python - Django channels and azure

I am trying to deploy django channels in azure. I have already integrated it with azure redis cache ... implementing django channels. Tutorial See Question&Answers more detail:os...

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

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536 views

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python - Qt buttons style varying from ui preview to original window

I am trying to design a virtual keyboard using qt creator and PyQt5, the problem is, the buttons looked modern in ... Mint 18.1 Cinnamon 64-bit See Question&Answers more detail:os...

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

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650 views

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python - How to save a pygame sprite-group using the shelve module

I'm making a game in which I want to have a save game feature. I have a sprite group which I want to ... what other saving method should I 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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634 views

1 answer

python - Reshaping 3D Numpy Array to a 2D array

I have the following 3D array in Numpy: a = np.array([[[1,2],[3,4]], [[5,6],[7,8]], [[9,10 ... ]] How can I do this efficiently in Python/Numpy? See Question&Answers more detail:os...

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

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508 views

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python - Tensorflow seems to be using system memory not GPU, and the Program stops after global_variable_inititializer()

I just got a new GTX 1070 Founders Addition for my desktop, and I am trying to run tensorflow on this ... . Help would be 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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585 views

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python - How to execute a remote page?

How do I exexcute python script found on a website? For e.g. following seems to work. But is it the ... webpage from python command prompt >>> See Question&Answers more detail:os...

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

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603 views

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python 3.5 - cannot use pycorenlp for python3.5 through terminal

My default python is 2.7, but have to do this project in python3.5 I installed pycorenlp through this command ... , and have to use pycorenlp See Question&Answers more detail:os...

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

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495 views

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python - Confusion in size of a numpy array

Python numpy array 'size' confuses me a lot a = np.array([1,2,3]) a.size = (3, ) ------------------ ... be (1,3) since its 1 row and 3 columns? See Question&Answers more detail:os...

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

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825 views

1 answer

python - How to use <<MenuSelect>> to bind to a tkinter menu item selection

I've been trying to bind a callback to a menu item selection, instead of using the command= functionality of the ... Windows 7 with Python 3.4 See Question&Answers more detail:os...

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

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1.3k views

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python 3.x - matplotlib: annotate plot with Emoji labels

I'm using Python 3.4 in macOS. Matplotlib is supposed to support Unicode in labels, but I'm not seeing ... trick to make these appear 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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516 views

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python - How to get combinations of elements from a list?

I have a list L = [1,2,3]. What's the best way to get all the possible unique combinations of 2 elements from the ... = 1 3 and 3rd iter = 2 3 See Question&Answers more detail:os...

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

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1.1k views

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python - How to reference Excel table column names in XLWings?

Does XLWings allow my to interact with Excel tables (available in Excel 2007 and later via menu or ctrl+t) by ... () #get the column named City See Question&Answers more detail:os...

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

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