Recent questions tagged Python

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python - Upgrading to Django 1.7. Getting error: Cannot serialize: <storages.backends.s3boto.S3BotoStorage object

I am trying to upgrade a django app from django 1.6.6 to 1.7 and am using python 2.7.8. When I run ... onto Amazon S3. Any help is 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 subprocess communicate() block

I am using the subprocess module to call an external program (plink.exe) to log-in to a server; but when I ... . Is there anyway to do that? 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 get the giant component of a NetworkX graph?

I don't know if NetworkX recently tweaked one of the methods to be a generator instead of returning a list, but I ... 0] Is there a cleaner 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 - operational error: database is locked

So I know this problem is not new in flask, and people have already asked it before. However I am still ... to solve it. 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 - InvalidInstanceId: An error occurred (InvalidInstanceId) when calling the SendCommand operation

The below is the code which i am running from python to execute commands in aws ec2 instance import ... calling the SendCommand operation: 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 Dataframe Multiindex Merge

I wanted to ask a questions regarding merging multiindex dataframe in pandas, here is a hypothetical scenario: arrays ... make this work? 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 - A multiline(paragraph) footer and header in reportlab

What is a best way to have a footer and header in reportlab, that not just a single line, that can be ... to put a paragraph into footer ? 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 open local file on Jupyter?

In[1]: path='/Users/apple/Downloads/train.csv' open(path).readline() Out[1]: FileNotFoundError Traceback (most ... but why does it not works? 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 - Interpreting the sum of TF-IDF scores of words across documents

First let's extract the TF-IDF scores per term per document: from gensim import corpora, models, similarities ... of words across documents? 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 - Pass variables to all Jinja2 templates with Flask

I have a table in the navigation system of my webapp that will be populated with up-to-date information each time ... will show up on each page See Question&Answers more detail:os...

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

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364 views

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python - Django logging custom attributes in formatter

How can Django use logging to log using custom attributes in the formatter? I'm thinking of logging the logged in ... of any others perhaps... 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 - Cannot import modules in jupyter notebook; wrong sys.path

I am having a problem importing modules in my iPython/Jupyter notebook. The problem fundamentally lies in where the sys. ... .path.append(...)? See Question&Answers more detail:os...

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

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135 views

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python - get value out of dataframe

In Scala I can do get(#) or getAs[Type](#) to get values out of a dataframe. How should I do it in ... to get the mean as a float number? See Question&Answers more detail:os...

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

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172 views

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python - Why load staticfiles for every template even if it is extended?

I have a base.html file which has some 'random' html code and I have the following code: {% load staticfiles % ... a file that has it already? See Question&Answers more detail:os...

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

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323 views

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python - Find a specific tag with BeautifulSoup

I can traverse generic tags easily with BS, but I don't know how to find specific tags. For example, how can I ... ">? Is this possible with BS? See Question&Answers more detail:os...

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

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342 views

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python - Check Linux distribution name

I have to get the Linux distribution name from a Python script. There is a dist method in the platform module: import platform ... ('', '', '') See Question&Answers more detail:os...

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

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810 views

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python - unzipping file results in "BadZipFile: File is not a zip file"

I have two zip files, both of them open well with Windows Explorer and 7-zip. However when i open them with ... rb' at 0x045D4F98>, start: 4073 See Question&Answers more detail:os...

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

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214 views

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python - Opencv divide contacted circles into single

I have an image to process.I need detect all the circles in the image.Here is it. And here is my code. ... I dont know which step 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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421 views

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python - Drawing a hollow asterisk square

I'm trying to figure out how to turn my whole square into a hollow one. The few things I've tried so ... greater than 3 to specify a condition? See Question&Answers more detail:os...

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

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417 views

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python - Not write out all dates on an axis, Matplotlib

Take a look at this example: import datetime as dt from matplotlib import pyplot as plt import matplotlib.dates ... or every tenth coordinate? See Question&Answers more detail:os...

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

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332 views

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python - pyqt add rectangle in Qgraphicsscene

I have a scene like this class Scene(QtWidgets.QGraphicsScene): def __init__(self, parent=None): super(Scene, self ... but I cannot find 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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238 views

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python - How can I declare a Column as a categorical feature in a DataFrame for use in ml

How can I declare that a given Column in my DataFrame contains categorical information? I have a Spark SQL ... model = pipeline.fit(train) See Question&Answers more detail:os...

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

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199 views

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python - normalizing data by duplication

note: this question is indeed a duplicate of Split pandas dataframe string entry to separate rows, but the answer ... this type of problems. See Question&Answers more detail:os...

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

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413 views

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python - Tweepy Streaming - Stop collecting tweets at x amount

I'm looking to have the Tweepy Streaming API stop pulling in tweets after I have stored x # of tweets in MongoDB ... stream.filter(track=['tv']) See Question&Answers more detail:os...

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

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133 views

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python - How to display an image from web?

I have written this simple script in python: import gtk window = gtk.Window() window.set_size_request(800, 700) ... the image from the URL. See Question&Answers more detail:os...

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

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587 views

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python 3.x - Annotate bars with values on Pandas (on Seaborn factorplot bar plot)

I wrote some code to try and solve this question: https://stackoverflow.com/questions/39477748/how-to- ... offset points') #vertical bars See Question&Answers more detail:os...

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

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278 views

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python - How does a classmethod object work?

I'm having trouble to understand how a classmethod object works in Python, especially in the context of metaclasses ... led me nowhere. 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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293 views

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python - Why is PyQt connect() syntax so verbose?

I'm just learning PyQt and looking at the Signals and Slots mechanism. I'm a bit baffled by the verbose ... needs to be so explicit/verbose? See Question&Answers more detail:os...

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

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