Recent questions tagged Python

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python - How can I log key presses using turtle?

I'm trying to make a simple turtle script that asks the user for their username, and then stores that. I don't ... a better way 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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python - gethostbyname_ex(hostname) extremely slow

At startup, IPython (qtconsole) calls socket.gethostbyname_ex(socket.gethostname())[2] to find a list of IP ... cpu 28.190 total 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 - Windows environment variables change when opening command line?

Sometimes when I change my environment variables in Windows, and then use software the depends on those variables, they ... and how to fix 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 - replace column values in spark dataframe based on dictionary similar to np.where

My data frame looks like - no city amount 1 Kenora 56% 2 Sudbury 23% 3 Kenora 71% 4 Sudbury 41% 5 Kenora 33% ... 3 Why gives me null values? 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 apply the same function with different input arguments to create new columns in pandas dataframe?

So i've this sample dataframe: x_mean x_min x_max y_mean y_min y_max 1 85.6 3 264 75.7 3 240 2 105.5 6 ... x: min_max_range(x,x+'_range')) 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 - Generate a large list of points with no duplicates

I want to create a large list containing 20,000 points in the form of: [[x, y], [x, y], [x, y]] ... there are no duplicate coordinates [x, y]? 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 reload a configuration file on each request for Flask?

Is there an idiomatic way to have Flask reload my configuration file on every request? The purpose of this ... Config except ImportError: pass 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 - Please explain this unexpected (backspace) behavior

Expected: >>> print "I print Backspace!" I pri Backspa! >>> print "I print Backspace!" I pri Backsp! ... not erased and '!' inserted? 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 - Find value counts within a pandas dataframe of strings

I want to get the frequency count of strings within a column. One one hand, this is similar to collapsing a ... new_values], axis=1) 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 - Importing a py file within itself

This is test.py: import sys a = 50 b = [1,2] def change(): print "Here 1" import test print "Here 2 ... the print a, b outputs can be justified? 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 - multiprocessing not working (oserror:[Errno 22] Invalid argument )

i am using python3.5.2 and i am trying to learn about multiprocessing but it doesn't work for me it doesn't ... problem , here is the 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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python - Parsing xml to pandas data frame throws memory error

I am trying to put 1. a parent attribute 2. a child attribute and 3. a grandchild text into a data frame. I am able ... 2.7.2 on Mac OS 10.7.5 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 - Matplotlib Boxplot: Showing Number of Occurrences of Integer Outliers

I have a plot like the following (using plt.boxplot()): Now, what I want is plotting a number how ... outlier). Is that somehow achievable? 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 - Step by step to getting malt parser in NLTK to work?

I have tried everything under the sun to make Malt Parser (1.7.1) with their pre-trained model (added with the ... 1 and 1.2 . Anything? 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 - pySpark Kafka Direct Streaming update Zookeeper / Kafka Offset

currently I'm working with Kafka / Zookeeper and pySpark (1.6.0). I have successfully created a kafka ... zookeeper from that point 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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python - How to create a shortcut to a folder on Windows?

I have created shortcuts for executables and it works, but when I try to create one for a folder it does not work ... know there must be a 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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python - Find cartesian product of lists filtering out the elements based on condition

I recently came across this notation a = [1,2,3,4] b = [2,4,6] c = [(x,y,z) for x in a for y in b for z in ... 1), (4, 6, 2), (4, 6, 3)] 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 - Can't install gcloud on Amazon Linux : invalid syntax

I'm trying to install gcloud on my EC2 server running Amazon Linux 4.14.47-56.37 64bits, in interactive mode ... .14) as recommended by Google. 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 make x and y axes appear when using networkx and matplotlib?

Hi so I was trying to plot a graph using networkx and matplotlib however, my x and y axes are not showing ... . There is no error message. 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 - Does flask session variable maintain state across threads?

According to the docs: A session basically makes it possible to remember information from one request to another. ... might call user session). 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 - Web scraping of Yahoo Finance statistics using BS4

I am new to Python programming, but I have found some different code snippets and have compiled them into the ... () print('Script completed') 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 stream from ZipFile? How to zip "on the fly"?

I want to zip a stream and stream out the result. I'm doing it using AWS Lambda which matters in sense of ... - the archive will be incomplete. 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 - extended euclidean algorithm and the concept of multiplicative inverse

I have with python: e*d == 1%etf we know (e) and (etf) and must discover (d) using the extended ... mistake elsewhere? Is this calculation ok? 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 - Wrong offset when using math mode and subscripts in Matplotlib and OSX

I have some plots where I would like to use subindices in some labels but whenever I use math mode all ... 4.3 matplotlib.get_backend() MacOSX 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 csv module to read ascii delimited text?

You may or may not be aware of ASCII delimited text, which has the nice advantage of using non-keyboard characters ... line.split(chr(30))? 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 - Pivot a pandas DataFrame to be the correct format: `DataError: No numeric types to aggregate`

Here is a pandas DataFrame I would like to manipulate: import pandas as pd data = {"grouping": ["item1" ... : No numeric types to aggregate 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 - What does scikit-learn DecisionTreeClassifier.tree_.value do?

I am working on a DecisionTreeClassifier model and I want to understand the path chosen by the model ... the DecisionTreeClassifier.tree_.value 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 credentials in Google AppEngine Python37

I started new app in AppEngine Python3.7 stadard. I am trying to get credentials using the following snippet, ... Engine APIs are not available See Question&Answers more detail:os...

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

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