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Showing posts from February, 2024

How To Change Pandas Dataframe Index Value?

I have a df: >>> df sales cash STK_ID RPT_Date 00… Read more How To Change Pandas Dataframe Index Value?

Graph Isomorphism For Jar Files

I'm working with *.jar files and on graph isomorphism. I want to check for graph isomorphism be… Read more Graph Isomorphism For Jar Files

Why My Code Not Correctly Split Every Page In A Scanned Pdf?

Update: Thanks to stardt whose script works! The pdf is a page of another one. I tried the script o… Read more Why My Code Not Correctly Split Every Page In A Scanned Pdf?

Removing Duplicate Columns After A Df Join In Spark

When you join two DFs with similar column names: df = df1.join(df2, df1['id'] == df2['i… Read more Removing Duplicate Columns After A Df Join In Spark

Make A Sprite Move To The Mouse Click Position Step By Step

I'm writing a little pirate game in Pygame. If you played sea battles in Empires Total War, you… Read more Make A Sprite Move To The Mouse Click Position Step By Step

Installing Natural Language Toolkit Data

I have problem with installing natural language toolkit for python 2.7. I have NLTK already install… Read more Installing Natural Language Toolkit Data

Python: How To Call An Instance Method From A Class Method Of The Same Class

I have a class as follows: class MyClass(object): int = None def __init__(self, *args, **kw… Read more Python: How To Call An Instance Method From A Class Method Of The Same Class

How Do I Print Only The First 10 Lines From A Csv File Using Python?

I'm new to Python and I'm wanting to print only the first 10 lines of a huge csv file. Her… Read more How Do I Print Only The First 10 Lines From A Csv File Using Python?

Use A Range As A Dictionary Key In Python, What Option Do I Have?

This is my first post and I'm quite new at programming, so I might not be able to convey my que… Read more Use A Range As A Dictionary Key In Python, What Option Do I Have?

Open An Azure Storagestreamdownloader Without Saving It As A File

I need to download a PDF from a blob container in azure as a download stream (StorageStreamDownload… Read more Open An Azure Storagestreamdownloader Without Saving It As A File

Numpy-equivalent Of List.pop?

Is there a numpy method which is equivalent to the builtin pop for python lists? Popping obviously… Read more Numpy-equivalent Of List.pop?

How To Dcast In Pandas With More Than One Columns For Columns Argument

I have the following dataframe import pandas as pd df = pd.DataFrame({'id':[1,2,3,4,5,6], &… Read more How To Dcast In Pandas With More Than One Columns For Columns Argument

Modulenotfounderror: No Module Named 'sklearn.tree.tree'

I'm trying to learn how to create a machine learning API with Flask, however, following this tu… Read more Modulenotfounderror: No Module Named 'sklearn.tree.tree'

Librosa: Installs Properly Only With Clone Git And Cannot Use Any Functions Though It Imports

I'm quite a newbie with python, and programming in general, and I am currently struggling with … Read more Librosa: Installs Properly Only With Clone Git And Cannot Use Any Functions Though It Imports

How To Force Numpy Array Order To Fortran Style?

I am using quite a lot of fortran libraries to do some mathematical computation. So all the arrays … Read more How To Force Numpy Array Order To Fortran Style?

Overlapping Histogram In For Loop With Heapq.nlargest - Python

At the moment I've created a for loop which cycles through my arrays and dumps out the result o… Read more Overlapping Histogram In For Loop With Heapq.nlargest - Python

Python Property Lookup With Custom __setattr__ And __slots__

I have a class that uses __slots__ and makes them nearly immutable by overriding __setattr__ to alw… Read more Python Property Lookup With Custom __setattr__ And __slots__

Why Does It Prints Like This

How does the iteration takes place in the following snippet? a=[0,1,2,3] b=[] for a[-1] in a: b… Read more Why Does It Prints Like This

Installing Mysql-python On Centos

I'm trying to get the MySQL-python lib installed on centos 5.5. I ran sudo yum install MySQL-p… Read more Installing Mysql-python On Centos

Use A String (representing A Logical Operator) In A Python Expression

Is it possible to somehow cast a string of, say, or or and into a form that is recognizable as a lo… Read more Use A String (representing A Logical Operator) In A Python Expression

How Do I Properly Document Python Enum Elements?

I understand that I can add a Python docstring to an enum type as I would any other class. But how … Read more How Do I Properly Document Python Enum Elements?

Using Mtcnn With A Webcam Via Opencv

I wish to be able to use a webcam and utilize MTCNN as the primary facial detector. Just as one can… Read more Using Mtcnn With A Webcam Via Opencv

Static Files On Openshift Django

I'm having issues serving up static files - i.e. style sheets and images required from my html … Read more Static Files On Openshift Django

Calculate Precision And Recall In A Confusion Matrix

Suppose I have a confusion matrix as like as below. How can I calculate precision and recall? Solut… Read more Calculate Precision And Recall In A Confusion Matrix

Python - Threadpoolexecutor Blocking. How To Unblock

The following code is blocking: import threading from concurrent.futures import ThreadPoolExecutor … Read more Python - Threadpoolexecutor Blocking. How To Unblock

Removes Text Between 2 Tags Python

I haved scraped data from Wikipedia and created a dataframe. df[0] contains {{Infobox_President |n… Read more Removes Text Between 2 Tags Python

Error Running Theano.test() - Importerror: Dll Load Failed: A Dynamic Link Library (dll) Initialization Routine Failed

I'm trying to get theano up and running on a Windows 10 (x64) machine. I've installed Pytho… Read more Error Running Theano.test() - Importerror: Dll Load Failed: A Dynamic Link Library (dll) Initialization Routine Failed

Python. Valueerror Could Not Convert String To Float:

I'm trying to produce the average of numbers in a specified column in a text file. I am receivi… Read more Python. Valueerror Could Not Convert String To Float:

K-means Using Signature Matrix Generated From Minhash

I have used minhash on documents and their shingles to generate a signature matrix from these docum… Read more K-means Using Signature Matrix Generated From Minhash

Too Much Space Between Bars In Matplotlib Bar Chart

I am trying to create a bar chart with matplotlib. The x-axis data is a list with years: [1950,1960… Read more Too Much Space Between Bars In Matplotlib Bar Chart

How Can It Be A Function That Uses Variables Which Are Not Arguments Of The Function?

I'm taking Kaggle's ML course and in their solution to an exercise they create a function t… Read more How Can It Be A Function That Uses Variables Which Are Not Arguments Of The Function?

Matplotlib Annotated Heatmaps Formatting

I have counted samples for lat/lon bins: dlon = [4.90148783 4.91438189 4.92727594 4.94017 4.953… Read more Matplotlib Annotated Heatmaps Formatting

In Python, I Want To Print Concentric Square For That I Have Written A Code But I Am Not Getting Desired Output

input n taken here n=int(input()) answer=[[1]] for i in range(2, n+1): t=[i]*((2*i)-3) a… Read more In Python, I Want To Print Concentric Square For That I Have Written A Code But I Am Not Getting Desired Output

Datetime Conversion - How To Extract The Inferred Format?

Here's an array of datetime values: array = np.array(['2016-05-01T00:00:59.3+10:00', &#… Read more Datetime Conversion - How To Extract The Inferred Format?

How To Parse Custom Tags Using Nltk.regexp.parser()

My question is similar to this unanswered question: Using custom POS tags for NLTK chunking?, but t… Read more How To Parse Custom Tags Using Nltk.regexp.parser()

Pandas: Milliseconds Dropped When Writing Data To Mysql

I'm trying to get a DataFrame with millisecond timestamps into a MySQL database. However, when … Read more Pandas: Milliseconds Dropped When Writing Data To Mysql

What Is The Equivalent Of Imagesc In Opencv

What would be the equivalent of imagesc in OpenCV? Solution 1: To get the nice colors in imagesc y… Read more What Is The Equivalent Of Imagesc In Opencv

How Do I Have A Fail Safe Command In Python

So I'm trying to make a program that randomly places my mouse in specific areas in python, and … Read more How Do I Have A Fail Safe Command In Python

Pyside Signal "duplicating" Behavior

from PySide.QtCore import * class Eggs(QObject): evt_spam = Signal() print 'Loaded'… Read more Pyside Signal "duplicating" Behavior

Pandas Count Unique Occurrences By Month

I have some monthly data that I'm trying to summarize using Pandas and I need to count the numb… Read more Pandas Count Unique Occurrences By Month

Django - How To Use A Filter With A Foreign Key Field?

I'm trying to do this: LogEntry.objects.filter(content_type='visitor') Where LogEntry … Read more Django - How To Use A Filter With A Foreign Key Field?

Is Setting `turtle.speed(0)` Necessary When We Have Turtle.tracer(0)

Is there a difference between: import turtle turtle.tracer(0) turtle.speed(0) while True: turtl… Read more Is Setting `turtle.speed(0)` Necessary When We Have Turtle.tracer(0)

Scrapy Yield A Request, Parse In The Callback, But Use The Info In The Original Function

So I'm trying to test some webpages in scrapy, my idea is to yield a Request to the URLS that s… Read more Scrapy Yield A Request, Parse In The Callback, But Use The Info In The Original Function

Scalable Solution For Str.contains With List Of Strings In Pandas

I am parsing a pandas dataframe df1 containing string object rows. I have a reference list of keywo… Read more Scalable Solution For Str.contains With List Of Strings In Pandas

Tesseractnotfound - Pytesser

I'm trying to do OCR using pytesser downloaded from HERE. Here is the code of pytesser.py try: … Read more Tesseractnotfound - Pytesser

Python - Delete Old Files

I'm somewhat new to python and have been trying to figure this out on my own but only getting b… Read more Python - Delete Old Files

Swig_shared_ptr Macro With Templated Class

I'm using SWIG with boost shared pointers to create python extensions. My current issue is tha… Read more Swig_shared_ptr Macro With Templated Class

Scrape Hidden Pages If Search Yields More Results Than Displayed

Some of the search queries entered under https://www.comparis.ch/carfinder/default would yield more… Read more Scrape Hidden Pages If Search Yields More Results Than Displayed

Why Do Sqlite3 Db_api Qmark And Named Style Not Work In "select Where" Queries?

Assuming I have a database with table users with a row: ID = 0, name = 'myName' I can get t… Read more Why Do Sqlite3 Db_api Qmark And Named Style Not Work In "select Where" Queries?

How To Edit An Xml File In Python?

I have a resx file that uses XML with a bunch of data that looks like this: Text 1 & Solution … Read more How To Edit An Xml File In Python?

Cx_freeze Error: Baseline Image Directory Does Not Exist

I'm trying to create an executable file out of a python scripts on Windows in Anaconda virtual … Read more Cx_freeze Error: Baseline Image Directory Does Not Exist

Combining Mixed Data Types In Pandas Column

I have a column in a dataframe called 'Year'. When I invoke; filtered_df['Year'].un… Read more Combining Mixed Data Types In Pandas Column

Iterate Over Nested Dictionary With Similar Keys But Different Values

{ 'matchesPlayed':{'label':'Matches Played','value':7} … Read more Iterate Over Nested Dictionary With Similar Keys But Different Values

A Recursive Function To Sort A List Of Ints

I want to define a recursive function can sort any list of ints: def sort_l(l): if l==[]: … Read more A Recursive Function To Sort A List Of Ints