Recent questions tagged Python

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python - In what world would \u00c3\u00a9 become é?

I have a likely improperly encoded json document from a source I do not control, which contains the following ... I am working in 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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python - Deleting diagonal elements of a numpy array

Given input A = np.array([[1,2,3],[4,5,6],[7,8,9]]) array([[1, 2, 3], [4, 5, 6], [7, ... be a neat way to do this without using loops. 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 - Why when I use GridSearchCV with roc_auc scoring, the score is different for grid_search.score(X,y) and roc_auc_score(y, y_predict)?

I am using stratified 10-fold cross validation to find model that predicts y (binary outcome) from X (X has 34 ... the same thing in my case? See Question&Answers more detail:os...

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

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557 views

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python - Parse xml with lxml - extract element value

Let's suppose we have the XML file with the structure as follows. <?xml version="1.0" ?> <searchRetrieveResponse ... ='000']", namespaces=ns) 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 - Umlauts in regexp matching (via locale?)

I'm surprised that I'm not able to match a German umlaut in a regexp. I tried several approaches, most ... the flag re.L used correctly? See Question&Answers more detail:os...

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

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561 views

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python - argparse choices structure of allowed values

Using argparse in relation to Python dependencies between groups using argparse, I have an argument part of some parser ... for the help guys! See Question&Answers more detail:os...

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

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476 views

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python - Clickable Tkinter labels

I will be populating a frame with a list of labels representing URLs. The url's will be fed in from a list ... do this than use labels? 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 - Extract salaries from a list of strings

I'm trying to extract salaries from a list of strings. I'm using the regex findall() function but it's ... 000'] Can anyone 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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396 views

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python - Django Initialization

I have a big array, that I would like to load into memory only once when django starts up and then ... settings module is imported, correct? 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 matplotlib rectangle edge to outside of specified width?

Is there a way to specify the edge for matplotlib's Rectangle patch so that the border is outside the domain ... outside the Rectangle's domain? See Question&Answers more detail:os...

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

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738 views

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python exception <type 'exceptions.ImportError'> No module named gdb:

I've just compiled gdb 7.8 from source in my home directory on a server machine running linux. I had previously ... , I usually write c++. See Question&Answers more detail:os...

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

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866 views

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python - Reverse Z Axis on matplotlib 3D Plot

How would one reverse the order on the z axis of a 3D plot (i.e. negative is up, and positive is down)? ... .set_zlabel("z label") p.show() See Question&Answers more detail:os...

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

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453 views

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python - Keeping NaNs with pandas dataframe inequalities

I have a pandas.DataFrame object that contains about 100 columns and 200000 rows of data. I am trying to convert it ... ) Is there a faster 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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378 views

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python - Matplotlib how to set legend's font type

I want to change the font type of the legend texts in Matplotlib. I know I can do something like this: ... to set fontproperties of the legend See Question&Answers more detail:os...

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

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349 views

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python - Can I get SQLAlchemy to populate a relationship based on the current foreign key values?

Here's some code: # latest version at https://gist.github.com/nickretallack/11059102 from sqlalchemy.ext.declarative ... to just do the query. See Question&Answers more detail:os...

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

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749 views

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python - Plotting seaborn heatmap on top of a background picture

I am creating a heatmap through seaborn in Jupyter to display the amount of people that would choose a certain ... to see how it looks. See Question&Answers more detail:os...

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

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336 views

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python - Django DB level default value for a column

Django is proving the model field argument default (https://docs.djangoproject.com/en/dev/ref/models/fields/ ... guy understand my question. 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 - PyQt4 names showing as undefined in eclipse, but it runs fine

I am using Eclipse 3.7.1 with the latest PyDev add-in for Python coding. I am using PyQt4. At the ... eclipse to recognize those names. 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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493 views

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python - Filter pandas Dataframe based on max values in a column

I have a DataFrame with repeating values in the index. I would like to filter this dataset down to only show me ... very much for your time - See Question&Answers more detail:os...

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

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336 views

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python - Better way to access super class method in multiple inheritance

class Animal(object): def eat(self): print("I eat all") class C(object): def eat(self): print("I ... Animal class method using super method. See Question&Answers more detail:os...

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

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531 views

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python - Matplotlib: make x-axis longer

In Matplotlib I need to draw a graph with points on the x-axis on each integer between 1 and 5000 and on the ... saving to pdf, if that helps) 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 - seaborn: Selected KDE bandwidth is 0. Cannot estimate density

import pandas as pd import seaborn as sns ser_test = pd.Series([1,0,1,4,6,0,6,5,1,3,2,5,1]) ... KDE bandwidth is 0. Cannot estimate density. See Question&Answers more detail:os...

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

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453 views

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python 2.7 - Difference between Numpy and Numpy-MKL?

I wanted to test some signal processing and statistics using SciPy. So I had to use scipy.signal and scipy. ... between the two libraries ? See Question&Answers more detail:os...

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

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396 views

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python - One-to-many Flask | SQLAlchemy

I am trying to create a one-to-many relationship using Flask and SQLAlchemy. I want the one-to-many ... great! Thanks ahead of time. See Question&Answers more detail:os...

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

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423 views

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python - Unknown column '' in 'field list'. Django

I'm using Django 1.9 and MySQL. I want to rename a field in my model. Let's look at model Choice from ... 'polls_choice.votes' in 'field list'") See Question&Answers more detail:os...

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

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316 views

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python 2.7 - Matplotlib OverflowError: Allocated too many blocks

I am plotting three sets of roughly 20 time series. Each time series has 1.8 million points and I am ... Help on this is much 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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426 views

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python - ValueError: Unknown layer: CapsuleLayer

I have defined a custom layer named CapsuleLayer. The actual model has been defined in a separate class. I ... while loading the saved model. See Question&Answers more detail:os...

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

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533 views

1 answer

python - Setting axis labels for histogram pandas

I'm fairly new to this, so there might be a very obvious answer to this. My apologies! I'm plotting two ... ? (Have to use pandas/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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