Recent questions tagged Python

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python - Complete a multipart_upload with boto3?

Tried this: import boto3 from boto3.s3.transfer import TransferConfig, S3Transfer path = "/temp/" fileName = " ... multipart upload with boto3? 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 write a single-file Django application?

I want to write a very small Django application in a single file, requiring all the appropriate modules and ... other auto-generated string). 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 - run web app with gevent

I want to try playing around with gevent as a web server and application framework. I don't see any way to ... server when it comes to scaling. 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 - quantile normalization on pandas dataframe

Simply speaking, how to apply quantile normalization on a large Pandas dataframe (probably 2,000,000 rows) in Python? ... method in R is 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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python - Why can't I pickle this object?

I have a class (below): class InstrumentChange(object): '''This class acts as the DTO object to send instrument ... get it. Any ideas? Ben 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 TFRecord: Can't parse serialized example

I am trying to follow this guide in order to serialize my input data into the TFRecord format but I keep ... error and deserialize my data? 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 can I check if a point is below a line or not ?

How can I check if a point is below a line or not ? I've the following data: Line [ {x1,y1}, {x2,y2} ... and the other side of the line. 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 - Installing ipython with readline on the mac

I am using ipython on Mac OS 10.5 with python 2.5.1 (I would actually like to use ipython for 2. ... way to get ipython installed with readline? 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 svg as string and not a file

I'd like to use Matplotlib and pyplot to generate an svg image to be used in a Django framework. as of now ... to write to the file system? 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 correct "TypeError: 'NoneType' object is not subscriptable" in recursive function?

def Ancestors (otu,tree): if tree[otu][0][0] == None: return [] else: return [otu,tree[otu][0][0]] ... to any of the strings in the tree. See Question&Answers more detail:os...

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

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682 views

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python - Feature Importance with XGBClassifier

Hopefully I'm reading this wrong but in the XGBoost library documentation, there is note of extracting the ... anyone else experiencing 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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798 views

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python - flask-bcrypt - ValueError: Invalid salt

I was finishing up a simple user login with Flask and flask-Bcrypt. However, when trying to login with a ... ', validators=[DataRequired()]) See Question&Answers more detail:os...

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

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302 views

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python - Pandas DataFrame and Keras

I'm trying to perform a sentiment analysis in Python using Keras. To do so, I need to do a word ... with that function. 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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367 views

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python - PySpark add a column to a DataFrame from a TimeStampType column

I have a DataFrame that look something like that. I want to operate on the day of the date_time field. root |-- ... idea how this can be done? See Question&Answers more detail:os...

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

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256 views

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python - What magic prevents Tkinter programs from blocking in interactive shell?

Note: This is somewhat a follow-up on the question: Tkinter - when do I need to call mainloop? Usually ... around until it's being executed. See Question&Answers more detail:os...

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

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238 views

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python - Exception: Cannot find PyQt5 plugin directories when using Pyinstaller despite PyQt5 not even being used

A month ago I solved my applcation freezing issues for Python 2.7 as you can ... -packagesPyInstalleruildinguild_main.py", line 734, in buil...

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

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309 views

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python - PyQt4 center window on active screen

How I can center window on active screen but not on general screen? This code moves window to center on ... center of this screen. Thansk! See Question&Answers more detail:os...

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

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231 views

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python - Cannot save matplotlib animation with ffmpeg

I am trying to save a simple matplotlib animation from Jake Vanderplas, but I keep getting OSError: [Errno 13] ... will post my solution below. See Question&Answers more detail:os...

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

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441 views

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python - Year Field in Django

I want my users to enter their birth year. I don't want them to type the same in the form rather select the ... to achieve what I want to do? See Question&Answers more detail:os...

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

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277 views

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python - How to turn numpy array image to bytes?

I need to recognize image with Google Vision API. Among the examples, they use following construction: with io.open( ... get by open() function See Question&Answers more detail:os...

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

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435 views

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python - How to make Anaconda work behind HTTP proxy (not https)?

I'm having trouble working with Anaconda behind a proxy at work. When I have have the following environment variables: ... I'm using Windows 7. 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 - AttributeError when unpickling an object

I'm trying to pickle an instance of a class in one module, and unpickle it in another. Here's where I pickle ... see what I'm doing 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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374 views

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python - Using Flask-WTForms, how do I style my form section of the html?

I read through Flask-WTF extremely simplified wiki, and couldn't understand much about what I can do with it. I ... edit the class and what not. See Question&Answers more detail:os...

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

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173 views

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python - How to insert arrays into a database?

In my previous question a lot of users wanted me to give some more data to toy with. So I got working on ... and insert my arrays into 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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852 views

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python 3.x - urllib.urlretrieve with custom header

I am trying to retrieve a file using urlretrieve, while adding a custom header. While checking the codesource of ... the same with urlretrieve? See Question&Answers more detail:os...

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

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341 views

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python - Export csv file from scrapy (not via command line)

I successfully tried to export my items into a csv file from the command line like: scrapy crawl spiderName -o ... the items into filename.csv See Question&Answers more detail:os...

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

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616 views

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python - Installed Flask in a virtualenv yet "command not found"

Installed virtualenv, activated it, pip installed flask, and yet, when i try to run a script or see ... (project)gabriel@debian:~/project$ See Question&Answers more detail:os...

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

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467 views

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python 3.x - Virtualenv - workon command not found

I followed these steps to set up virtualenv + virtualenvwrapper: $ sudo apt-get install python3-pip $ sudo pip3 ... it says: command not found See Question&Answers more detail:os...

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

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