Recent questions tagged Python

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python - Mac OS X Lion Psycopg2: Symbol not found: _PQbackendPID

I recently upgraded to Mac OS X Lion and am trying to get psycopg2 working again with python 2.6. The ... .so Expected in: flat namespace 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 - Default text as well as list textvariable Entry widget Tkinter

I have the following Entry box where due to obtaining values I have put a list option in for textvariable. ... Button-1>", self.callback) 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 tkinter module raises attribute error when run via command line but not when run via IDLE?

Is there a reason why the code will raise an error when run via the command line compared to when run ... python installed. Namely, Python34. 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 coordinates of image shown in opencv

Sorry but title doesnt really make sense i am trying to make an ai that clicks on the ball to make it ... exe has stopped working :( 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 - Speeding up a closest point on a hyperbolic paraboloid algorithm

I wrote a python script which finds the UV coords of the closest point on surface from a query point ( ... .164463481066 V Coord: 0.681959858995 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 reduce integration time for integration over 2D connected domains

I need to compute many 2D integrations over domains that are simply connected (and convex most of the time). I'm ... should be used. **opt) 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 - Confusing probabilities of the predict_proba of scikit-learn's svm

My purpose is to draw the PR curve by the sorted probability of each sample for a specific class. However, I ... kernel for SVM. Any solutions? 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 for loop, how to find next value(object)?

HI, I'm trying to use for loop to find the difference between every two object by minus each other. So, how can ... to say? diff = last = first 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 row of csr_matrix

I have a sparse csr_matrix, and I want to change the values of a single row to different values. I can't find an ... or is this my only way out? 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 map object at

im new to Python (version 3.41) and I have a problem with printing the result of using map and filter ... )) <map object at 0x000000000333DC50> 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 generate regular points on cylindrical surface

I am a beginner in Python and I have to work on a project using Numpy. I need to generate some points (e.g ... about how to do this? Many 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 - Use custom widgets kivy

I'm trying to build a kivy app using some custom widgets. However whenever I try to use them they ... make each button behave differently? 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 - Not able to upgrade tensorflow on mac

I am running command to upgrade tensorflow, But always getting below error. Could not find a version that ... install --upgrade tensorflow-gpu 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 create a min-max plot by month with fill_between

I have to show month names as xticks and while I plot the figure and pass x as month names it plots it ... months and y axis as degree Celsius 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 - Converting colon separated list into a dict?

I wrote something like this to convert comma separated list to a dict. def list_to_dict( rlist ) : rdict = {} i ... tuple ( row ) or something? 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 - Why doesn't appending binary pickles work?

I know this isn't exactly how the pickle module was intended to be used, but I would have thought this would ... simpler duh 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 - Kivy Text Input for Arabic Text

I'm trying to use Kivy's text input for Arabic text. I have an Arabic font set up with my text input but ... .run() The result of this 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 - Run App Engine development server with modules in PyCharm

Since the latest release of the Google App Engine Python SDK, it's possible to use modules. I have a Python ... there was no need for 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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417 views

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python - VIM command to insert multiline text with argument

new VIM user. I'm trying to make creating python properties easier for my class definitions. What I would ... -expression-of-a-normal-command 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 2.7 - OpenCV 3.0.0-beta missing KNN?

Having just upgraded from opencv-2.4.11, KNearest seems to be missing In [27]: import cv2 ... cv2.KalmanFilter cv2.KeyPoint_overlap 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 - Why is django ORM so much slower than raw SQL

I have the following two pieces of code: First, in SQL: self.cursor.execute('SELECT apple_id FROM main_catalog ... Django being so much slower? See Question&Answers more detail:os...

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

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458 views

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python - Finding hidden cells using openpyxl

I've been trying to write a script to copy formatting from one workbook to another and, as anyone dealing ... see where hidden columns are? See Question&Answers more detail:os...

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

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259 views

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python - How to execute a (safe) bash shell command within setup.py?

I use nunjucks for templating the frontend in a python project. Nunjucks templates must be precompiled in production ... $ npm install nunjucks See Question&Answers more detail:os...

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

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372 views

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python - Spark fastest way for creating RDD of numpy arrays

My spark application is using RDD's of numpy arrays. At the moment, I'm reading my data from AWS S3, ... np.loadtxt(iterator,dtype=np.float64)] 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 sql server on django

I have got following in my django env Django==1.8.1 django-mssql==1.6.2 django-pyodbc==0.2.8 ... was: cannot import name 'BaseDatabaseWrapper' See Question&Answers more detail:os...

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

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433 views

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python - MySQL INSERT ... ON DUPLICATE KEY UPDATE with django 1.4 for bulk insert

I am having issues figuring out MySQL INSERT ... ON DUPLICATE KEY UPDATE with django 1.4. The table that I ... the field values for raw insert? See Question&Answers more detail:os...

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

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838 views

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python - How to extract chains from a PDB file?

I would like to extract chains from pdb files. I have a file named pdb.txt which contains pdb IDs as shown below. The ... 'A' > $i\_A.pdb 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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388 views

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python - Why isn't "is" comparison used in place of "==" for primitive types?

When I'm using Pytest for Python formatting, it complains about doing something like: >>> assert some_function_ret_val ... of a primitive type. See Question&Answers more detail:os...

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

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