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Showing posts from December, 2023

When Converting An Image Into An Array And Viceversa, Are There Extra Considerations One Must Take Into Account?

I wrote this code to switch the red and blue values in the RGB array from a given image: from PIL i… Read more When Converting An Image Into An Array And Viceversa, Are There Extra Considerations One Must Take Into Account?

Keras - Precision And Recall Is Greater Than 1 (multi Classification)

I am working on a multi classification problem using CNN's in keras. My precision and recall sc… Read more Keras - Precision And Recall Is Greater Than 1 (multi Classification)

Getting Ready To Convert From Python 2.x To 3.x

As we all know by now (I hope), Python 3 is slowly beginning to replace Python 2.x. Of course it wi… Read more Getting Ready To Convert From Python 2.x To 3.x

Create Dataframes From Unique Value Pairs By Filtering Across Multiple Columns

I want to filter values across multiple columns creating dataframes for the unique value combinatio… Read more Create Dataframes From Unique Value Pairs By Filtering Across Multiple Columns

Trouble Adding Feature To Recursive Fibonacci Program

I'm working with a basic Python MIT free courseware and I have run into a wall with a recursion… Read more Trouble Adding Feature To Recursive Fibonacci Program

Python 3 Recursion - Maximum Depth Exceeded

I'm writing a basic recursion function that takes an integer, n, and returns the sum of the fir… Read more Python 3 Recursion - Maximum Depth Exceeded

In Ant, How Do I Specify Files With Comma In Filename?

Here is an example-target that I tried. Turns out, it wants to delete everything because the comma… Read more In Ant, How Do I Specify Files With Comma In Filename?

Python Equivalent To Sed

Is there a way, without a double loop to accomplish what the following sed command does Input: Time… Read more Python Equivalent To Sed

How To Produce Matlab Plot (interpolation) In Matplotlib (numpy)?

I am trying to follow a MATLAB example of meshgrid + interpolation. The example code is found HERE.… Read more How To Produce Matlab Plot (interpolation) In Matplotlib (numpy)?

How To Optimize This Pandas Code To Run Faster

I have this code to create a swarmplot from data from a DataFrame: df = pd.DataFrame({'Refined_… Read more How To Optimize This Pandas Code To Run Faster

Avoid Overflow When Adding Numpy Arrays

I want to add numpy arrays with datatyp uint8. I know that the values in these arrays may be large … Read more Avoid Overflow When Adding Numpy Arrays

Error While Installing Django-channels On Python 3.5 On Windows

I'm also getting the same error while installing Twisted. Here's version info: Django : … Read more Error While Installing Django-channels On Python 3.5 On Windows

Python Multiple Number Guessing Game

I am trying to create a number guessing game with multiple numbers. The computer generates 4 random… Read more Python Multiple Number Guessing Game

Got Oserror When Use Pillow To Deal With My Jpg Image

I'm post a jpg picture to my website (build on django), but I got 'OSError at url XXXX/XXX … Read more Got Oserror When Use Pillow To Deal With My Jpg Image

Python: Swap List Elements In A Copied List Without Affecting The Original List

I have a list a and a list b which is (should be) a copy of list a. a = [[['a'], ['b… Read more Python: Swap List Elements In A Copied List Without Affecting The Original List

Convert Normal String To Latex String To Use In Matplotlib

So I know that if I want to use a LaTeX string in my plots I should instead of for example 'sin… Read more Convert Normal String To Latex String To Use In Matplotlib

Pass A Function Pointer From A C Dll To A C Dll

I am trying to use the Windows function: https://docs.microsoft.com/en-us/windows/win32/api/winuser… Read more Pass A Function Pointer From A C Dll To A C Dll

Convert List To Datetime In Pandas

I have the foll. list in pandas: str = jan_1 jan_15 feb_1 feb_15 mar_1 mar_15 apr_1 apr_15… Read more Convert List To Datetime In Pandas

Plotting Autoscaled Subplots With Fixed Limits In Matplotlib

What's the best way in matplotlib to make a series of subplots that all have the same X and Y s… Read more Plotting Autoscaled Subplots With Fixed Limits In Matplotlib

Threading: Pyqt Crashes With "unknown Request In Queue While Dequeuing"

One part of an application I'm developing needs to send some emails to a small group of people.… Read more Threading: Pyqt Crashes With "unknown Request In Queue While Dequeuing"

How Do I Automate The Number Of Clusters?

Edit: I accept that my question has been closed for being similar but I think the answers have prov… Read more How Do I Automate The Number Of Clusters?

Looking At Previous Time Series

I Have a dataset as shown below. The idea is looking at every previous 15minutes not the frequency … Read more Looking At Previous Time Series

Want To Get The Text From The Li Tag Using Selenium

I want the text from the li tag that is the specification of the product but when i am searching us… Read more Want To Get The Text From The Li Tag Using Selenium

Using Word2vecmodel.transform() Does Not Work In Map Function

I have built a Word2Vec model using Spark and save it as a model. Now, I want to use it in another … Read more Using Word2vecmodel.transform() Does Not Work In Map Function

Using Recursion To Create A List Combination

I'm in trouble creating a combination of elements from list. What i would like to do is to crea… Read more Using Recursion To Create A List Combination

Python 3.5 Iterate Through A List Of Dictionaries

My code is index = 0 for key in dataList[index]: print(dataList[index][key]) Seems to work fin… Read more Python 3.5 Iterate Through A List Of Dictionaries

How To Define Custom Properties In Enumeration In Python (javascript-like)

In JavaScript we can do this: var Color = { YELLOW: { value: 1, displayString: 'Yellow'… Read more How To Define Custom Properties In Enumeration In Python (javascript-like)

Python: Saving A String To File Without Overwriting File's Contents

I need to add my program's outputs to a saved file every time I run the program without overwri… Read more Python: Saving A String To File Without Overwriting File's Contents

Adding Entity Relations In Thingsboard Using Swagger Api And Python

I am trying to automatize the setup of a Thingsboard node. (2.0.2) I have managed to create assets… Read more Adding Entity Relations In Thingsboard Using Swagger Api And Python

How Do I Use Pylab To Plot A Phase Plane For Pendulum Motion?

I have code that will work for plotting the following predator prey model: dx/dt = x − xy, dy/dt =… Read more How Do I Use Pylab To Plot A Phase Plane For Pendulum Motion?

Python: Where Is Freeze.py?

Anyone know where freeze.py is installed for 2.6.5? I can't seem to find it anywhere. Did it ge… Read more Python: Where Is Freeze.py?

Upload File With Selenium Webdriver Python

I have tried the method from this page: Upload file with Selenium in Python Code: file_button = bro… Read more Upload File With Selenium Webdriver Python

Calling A Function On Captured Group In Re.sub()

>>> base64_encode = lambda url : url.encode('base64').replace('\n', '&… Read more Calling A Function On Captured Group In Re.sub()

Draw Images With Canvas And Use Simpledoctemplate

I'm writing pdfs with reportlab inside a django view, they are very simple, the header, the con… Read more Draw Images With Canvas And Use Simpledoctemplate

Create Dict Using A Grouping Column In An Array And Assigning The Remaining Columns To Values Of The Dict

I have a type(s1) = numpy.ndarray. I want to create a dictionary by using the first column of s1 as… Read more Create Dict Using A Grouping Column In An Array And Assigning The Remaining Columns To Values Of The Dict

How Can I Scrape The Data From In Between These Span Tags?

I am attempting to scrape the figures shown on https://www.usdebtclock.org/world-debt-clock.html , … Read more How Can I Scrape The Data From In Between These Span Tags?

Can Lambda Work With *args As Its Parameter?

I am calculating a sum using lambda like this: def my_func(*args): return reduce((lambda x, y: … Read more Can Lambda Work With *args As Its Parameter?

Python Json. Getting Only The Last Element In The Json Array

I just started trying out python, and right now i am in a little bit of a dilemma. I am trying to p… Read more Python Json. Getting Only The Last Element In The Json Array

What Are The Valid Values For --platform, --abi, And --implementation For Pip Download?

pip download has several flags that I would like to play with --platform, --abi, and --implementati… Read more What Are The Valid Values For --platform, --abi, And --implementation For Pip Download?

Suppressing Namespace Prefix In Xml File

Input File: Solution 1: Here is how to use XSLT for the task. The XSLT is following so called Iden… Read more Suppressing Namespace Prefix In Xml File

Cherry Py Auto Download File

I'm currently building cherry py app for my projects and at certain function I need auto starti… Read more Cherry Py Auto Download File

How To Include Nsusernotificationcenter In Py2app

I am making an app in python 2.7 on mac osx 10.8.5 I want to show notification number of times, the… Read more How To Include Nsusernotificationcenter In Py2app

How To Nest Conjunctions Or_ And And_ In Sqlalchamey

I'm tyring to recreate this query in SQL Alchamey but I've been unable to nest the filters:… Read more How To Nest Conjunctions Or_ And And_ In Sqlalchamey

Mysql Db Call: Not All Arguments Converted During String Formatting

I get the error not all arguments converted during string formatting, when I execute the below-give… Read more Mysql Db Call: Not All Arguments Converted During String Formatting

Function To Make Functions Callable Doesn't Work Properly

I'm having the problem of a button executing its' command when it's created. To stop th… Read more Function To Make Functions Callable Doesn't Work Properly

Why My Code Does Not Decode The Encrypted String Based On The Dictionary?

I have a dictionary with keys and values that represent letters. for example a simple one : DICT_CO… Read more Why My Code Does Not Decode The Encrypted String Based On The Dictionary?

Do Something While User Input Not Received

In Python, in what way can I do something on loop while user has not given an input. I have python… Read more Do Something While User Input Not Received

How Can I Group Values Of List In Java Using Lambda Like We Do In Python

I want to group values of a map based on the key. Let's say Map map1 = new TreeMap (); map1.p… Read more How Can I Group Values Of List In Java Using Lambda Like We Do In Python

Python Selenium With Phantomjs - Click Failed: Referenceerror: Cant't Find Variable

Im writing a python script using selenium webdriver to get some data from a website, and Im trying … Read more Python Selenium With Phantomjs - Click Failed: Referenceerror: Cant't Find Variable

How Do I Patch A Sys Attribute Using A Decorator?

I have a function which depends on the Python version. I would like to test this in a unittest by m… Read more How Do I Patch A Sys Attribute Using A Decorator?

Load Data From Csv Into Numpy Array

I am trying to load data in a csv file (with delimiter ',') into a numpy array. Example of … Read more Load Data From Csv Into Numpy Array

How To Do An Inverse `range`, I.e. Create A Compact Range Based On A Set Of Numbers?

Python has a range method, which allows for stuff like: >>> range(1, 6) [1, 2, 3, 4, 5] W… Read more How To Do An Inverse `range`, I.e. Create A Compact Range Based On A Set Of Numbers?

Rpython Ord() With Non-ascii Character

I'm making a virtual machine in RPython using PyPy. My problem is, that I am converting each ch… Read more Rpython Ord() With Non-ascii Character

Unable To Save Differenent Date Format In Django

I am working on a form and have a date field. I want to save different date format for date field i… Read more Unable To Save Differenent Date Format In Django

How To Use A Range For Dict Keys?

I have a program that scans Google for links, it verifies how many links you've found and then … Read more How To Use A Range For Dict Keys?

Exporting Animated Gif Using Matplotlib

I've been trying to export an animated gif on my windows computer for several days. Here is the… Read more Exporting Animated Gif Using Matplotlib

Keras Custom Loss Function Not Printing Value Of Tensor

I am writing just a simple loss function in which I have to convert the tensor to numpy array(it… Read more Keras Custom Loss Function Not Printing Value Of Tensor

Find Different Rows Between 2 Dataframes Of Different Size With Pandas

I have 2 dataframes df1 and df2 of different size. df1 = pd.DataFrame({'A':[np.nan, np.nan,… Read more Find Different Rows Between 2 Dataframes Of Different Size With Pandas

Interpret An Integer As Enum Flags

Suppose I have a Flag enum like this: From enum import Flag class suspicion(Flag): TOT_PCNT_LO… Read more Interpret An Integer As Enum Flags