Recent questions tagged Python

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python - Turning a Large Matrix into a Grayscale Image

I have a NumPy array of 3,076,568 binary values (1s and 0s). I would like to convert this to a ... advice would be appreciated. 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 - set ipython's default scientific notation threshold

How can I modify the point at which python decides to print in scientific notation? E.g. I'd like everything > ... : 5e10 Out[12]: 50000000000.0 See Question&Answers more detail:os...

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

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python - Get diagonal without using numpy?

I'm trying to get the diagonal from a matrix in Python without using numpy (I really can't use it). Does ... from right-> left, top->bottom. 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 - Rasterizing multiple elements in matplotlib

I'm having problems when rasterizing many lines in a plot using the rasterized=True keyword using the pdf output ... be greatly reduced? 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 - AWS Lambda read contents of file in zip uploaded as source code

I have two files: MyLambdaFunction.py config.json I zip those two together to create MyLambdaFunction.zip. I then ... file with the source 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 - KeyError when adding objects to SQLAlchemy association object

I have two tables, tablet and correspondent: class Correspondent(db.Model, GlyphMixin): # PK column and ... something fairly elementary 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 - ImportError No module named pyaudio

I am writing a program in Python on RaspberryPi, But I am getting an error ImportError No module named ... I install PyAudio in RaspberryPi 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 - Dumping numpy array into an excel file

I am trying to dump numpy array into an excel file using savetxt method, but I am getting this weird error ... any help will 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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python - Filling a 2D matrix in numpy using a for loop

I'm a Matlab user trying to switch to Python. Using Numpy, how do I fill in a matrix inside a for loop? For example, the ... ) = [3*i, i^2]; end 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 - Running `airflow scheduler` launches 33 scheduler processes

When using LocalExecutor with a MySQL backend, running airflow scheduler on my Centos 6 box creates 33 scheduler ... returned. Is this normal? 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: timestamp to datetime

I have dataframe and column with dates looks like date 1476329529 1476329530 1476329803 1476329805 1476329805 1476329805 ... did anything wrong See Question&Answers more detail:os...

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

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446 views

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python - Jupyter, Interactive Matplotlib: Hide the toolbar of the interactive view

I am starting using the interactive plotting from Matplotlib: %matplotlib notebook import matplotlib.pyplot as plt ... the interactive mode? 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 - Merge pandas DataFrame on column of float values

I have two data frames that I am trying to merge. Dataframe A: col1 col2 sub grade 0 1 34.32 x a 1 1 34.32 x b 2 1 ... b q z 5 3 33.01 z a q e 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 - Numpy Array summing with weights

I have a two dimensional numpy array. Each row is three elements long and is an integer 0-3. This represents ... confident where to do the dot. 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 is __init__ not called after __new__ SOMETIMES

Let me start with this is not a repeat of Why does __init__ not get called if __new__ called with no args. I ... the rules a little better now. 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 - Predicting next word using the language model tensorflow example

The tensorflow tutorial on language model allows to compute the probability of sentences : probabilities = tf ... (probabilities, target_words) 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 debug a non-functioning PyInstaller build?

I have used PyInstaller only once before, and it worked pretty straight forward with wxPython. I'm ... building another project successfully. See Question&Answers more detail:os...

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

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287 views

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python - Splitting Numpy array based on value

Suppose I have this NumPy array: a = np.array([0, 3, 5, 5, 0, 10, 14, 15, 56, 0, 12, 23, 45, 23, ... 4] Is there a built-in function 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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379 views

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python - iframe not rendering in ipython-notebook

The following iframe will not render in an ipython-notebook from IPython.display import HTML HTML('<iframe src=http:/ ... I submit a bug report? See Question&Answers more detail:os...

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

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713 views

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python - TypeError: unsupported operand type(s) for +=: 'int' and 'list'

I am trying to do a project in python. I'm getting an error in the line s+=line TypeError: unsupported operand ... in array] Where is the 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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289 views

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python - Matplotlib AttributeError: module 'matplotlib.cbook' has no attribute '_define_aliases'

When trying to plot a graph on jupyter with pyplot I am running the following code: import matplotlib.pyplot ... someone had the same problem? See Question&Answers more detail:os...

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

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479 views

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python - Why should json.loads be preferred to ast.literal_eval for parsing JSON?

I have a dictionary that is stored in a db field as a string. I am trying to ... csrfmiddlewaretoken': u'wTE9RZGvjCh9RCL00pLloxOYZItQ98JN'} 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 - Selenium Desired Capabilities - set handlesAlerts for PhantomJS driver

I'm trying out phantomJS with webdriver and I'm having trouble with handling javascript alerts. I notice ... -856d-5783db9f5342/alert_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 - Fill up a dictionary in parallel with multiprocessing

Yesterday i asked a question: Reading data in parallel with multiprocess I got very good answers, and i implemented the ... on a 48 core HPC. See Question&Answers more detail:os...

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

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331 views

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python - Amazon AWS S3 browser-based upload using POST -

I am building a web application that includes a file upload feature. My goal is to initiate upload from users ... 2015-12-18T04:59:32Z'} See Question&Answers more detail:os...

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

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311 views

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python 3.x - Using Flask Routing in GCP Function?

I am looking to serve multiple routes from a single GCP cloud function using python. While GCP Functions ... return router.handle(request) See Question&Answers more detail:os...

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

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355 views

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python - Matplotlib text bounding box dimensions

What I want to do: I want to get the position and dimensions of a text instance in matplotlib world units (not ... passed to ax.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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470 views

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python - how to compare two columns in pandas to make a third column ?

i have two columns age and sex in a pandas dataframe sex = ['m', 'f' , 'm', 'f', 'f', 'f', ... on it if i get anything i will immediately update See Question&Answers more detail:os...

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

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