Recent questions tagged Python

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python - Getting the "str" has no property "_default_manager" on a Django app just on startup

Right after I restart Apache to pick up the new Django changes, I get the following errors for probably 30 ... what might be causing 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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158 views

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python - Get Matplotlib legend location?

I would like to the get the position (x, y of either the axes data or scale) of a matplotlib legend. ... with additional information next to 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 - Discord.py | add role to someone

I have trouble with making an "add role" command in discord.py. I don't know what is wrong; it just ... ) await client.add_roles(user, role) 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 - jinja2 set background image

I am trying to set the background image using jinja2. I have managed to serve my file from my dev server ... image which I am serving? See Question&Answers more detail:os...

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

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207 views

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python - scrapy log handler

I seek your help in the following 2 questions - How do I set the handler for the different log levels like in ... )? Is it inside my spider? See Question&Answers more detail:os...

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

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140 views

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python - How to avoid using global variables?

I use global variables but I've read that they aren't a good practice or pythonic. I often use functions ... higher thant 12") main_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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483 views

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python - How can I display timedelta in hours:min:sec?

I am exporting a list of timedeltas to csv and the days really messes up the format. I tried this: while ... days and creates an infinite loop. See Question&Answers more detail:os...

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

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600 views

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python - Unpivot multiple columns with same name in pandas dataframe

I have the following dataframe: pp b pp b 5 0.001464 6 0.001853 5 0.001459 6 0.001843 Is there a way to ... 5 0.001459 6 0.001853 6 0.001843 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 - Is it possible to find and delete orphaned blobs in the app engine blobstore?

I'm using the python api and have created a few orphaned blobs during testing. Because of a bug in the ... the number of entities goes up. See Question&Answers more detail:os...

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

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274 views

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python - Preserve existing tables in database when running Flask-Migrate

I have a database with existing tables. My code has a User model. I generated a revision using Flask-Migrate and ... = '__main__': manager.run() See Question&Answers more detail:os...

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

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279 views

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python - PyArray_Check gives Segmentation Fault with Cython/C++

Thank you all in advance. I am wondering what's the right way to #include all numpy headers and ... //github.com/giantwhale/study_cython_numpy/ See Question&Answers more detail:os...

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

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189 views

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python - Fastest Text search method in a large text file

I am doing a text search in a rather big txt file (100k lines, 7mo) Text is not that big but I need ... for a google Appengine app. 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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212 views

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python - Clearing memory used by rpy2

How can I clear objects (and the memory they occupy) created via rpy? import rpy2.robjects as r a = r.r('a = matrix(NA ... 2.0, Win XP, R 2.12.0 See Question&Answers more detail:os...

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

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347 views

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python - Can't turn off images in Selenium / Firefox

I am looking to disable images in Firefox when using Selenium. It should be a simple update of the preferences in ... after i enter my 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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211 views

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python - Make a window transparent using Win32?

Using Python Win32 extensions, how do you make an arbitrary window on Windows XP transparent? See Question&Answers more detail:os...

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

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362 views

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python - How to parse date days that contain "st", "nd", "rd", or "th"?

I have a string like this "1st January 2014" I want to parse it into a datetime.date. I can do this: ... has already had something for me. See Question&Answers more detail:os...

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

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281 views

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python - Using magic commands outside of Interactive Shell in IPython

Is there a way to use "magic commands" from IPython from an outside file? For example if I have a file, ... in the interactive shell? 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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205 views

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python - pip search django produces time out error

coincidentally, I run pip search django command and I got time out error. even specifing a high value of ... internet connection = 2 Mbits See Question&Answers more detail:os...

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

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294 views

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python - Exporting animated gif using matplotlib

I've been trying to export an animated gif on my windows computer for several days. Here is the basic code: ... ideas? Thanks for any help. See Question&Answers more detail:os...

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

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962 views

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python - Move files from one directory to another with Paramiko

I have a script that creates and tmp directory on an SFTP server and then puts files in said /tmp once the ... () os.system("rm LockSFTP") See Question&Answers more detail:os...

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

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334 views

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python - Broken pip3 and easy_install3: DistributionNotFound

My pip3 seems to be broken: $ pip3 --version Traceback (most recent call last): File "/usr/bin/pip3 ... 2 installed from the testing repository. See Question&Answers more detail:os...

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

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169 views

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python - Parse multiple json objects that are in one line

I'm parsing files that containt json objects. The problem is that some files have multiple objects in one line. e ... : index+1]) return lines See Question&Answers more detail:os...

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

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360 views

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python - Why do SQLAlchemy classes inheriting from Base not need a constructor?

With SQLAlchemy objects inheriting from the Base class I can pass arguments to a class for variables which aren't ... .e an __init__ 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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261 views

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python - How do I coalesce a sequence of identical characters into just one?

Suppose I have this: My---sun--is------very-big---. I want to replace all multiple hyphens with just one hyphen. See Question&Answers more detail:os...

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

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245 views

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python - math.sin incorrect result

>>> import math >>> math.sin(68) -0.897927680689 But sin(68) = 0.927 (3 decimal places) Any ideas about why I am getting this result? 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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118 views

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python - How to compile all lists in a column into one unique list

I have a pandas dataframe as below: How can I combine all the lists (in the 'val' column) ... def_contributors = list(set(def_contributors)) See Question&Answers more detail:os...

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

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262 views

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python - How to use multiprocessing.Pool in an imported module?

I have not been able to implement the suggestion here: Applying two functions to two lists simultaneously. I ... instances that need updating. See Question&Answers more detail:os...

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

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370 views

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python - How can I plot 2d FEM results using matplotlib?

I'm developing a 2D plane finite element tool. One of the features is the ability to visualize the stresses on ... of quads. 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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