Skip to content

Instantly share code, notes, and snippets.

View scvalencia's full-sized avatar

scvalencia scvalencia

43 followers · 44 following
  • Universidad de los Andes
  • Bogotá, Colombia
View GitHub Profile
@simonw
simonw / recover_source_code.md
Last active June 21, 2024 00:11
How to recover lost Python source code if it's still resident in-memory

How to recover lost Python source code if it's still resident in-memory

I screwed up using git ("git checkout --" on the wrong file) and managed to delete the code I had just written... but it was still running in a process in a docker container. Here's how I got it back, using https://pypi.python.org/pypi/pyrasite/ and https://pypi.python.org/pypi/uncompyle6

Attach a shell to the docker container

Install GDB (needed by pyrasite)

apt-get update && apt-get install gdb
@dannguyen
dannguyen / README.md
Last active May 17, 2024 02:07
Using Python 3.x and Google Cloud Vision API to OCR scanned documents to extract structured data

Using Python 3 + Google Cloud Vision API's OCR to extract text from photos and scanned documents

Just a quickie test in Python 3 (using Requests) to see if Google Cloud Vision can be used to effectively OCR a scanned data table and preserve its structure, in the way that products such as ABBYY FineReader can OCR an image and provide Excel-ready output.

The short answer: No. While Cloud Vision provides bounding polygon coordinates in its output, it doesn't provide it at the word or region level, which would be needed to then calculate the data delimiters.

On the other hand, the OCR quality is pretty good, if you just need to identify text anywhere in an image, without regards to its physical coordinates. I've included two examples:

####### 1. A low-resolution photo of road signs

@bishboria
bishboria / springer-free-maths-books.md
Last active June 8, 2024 06:39
Springer made a bunch of books available for free, these were the direct links
@ryancdotorg
ryancdotorg / frag32.py
Created August 20, 2015 16:27
A FAT32 fragmenter, because I am a horrible person.
#!/usr/bin/env python
import random
import struct
import sys
# Most of the Fat32 class was cribbed from https://gist.github.com/jonte/4577833
def ppNum(num):
return "%s (%s)" % (hex(num), num)
@PurpleBooth
PurpleBooth / README-Template.md
Last active July 3, 2024 16:25
A template to make good README.md

Project Title

One Paragraph of project description goes here

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.

Prerequisites

@CMCDragonkai
CMCDragonkai / infinite_precision_arithmetic.md
Last active April 25, 2016 02:41
Infinite Precision Arithmetic

Infinite Precision Arithmetic

Is it possible to calculate all Real (Rational & Irrational) numbers without accumulating rounding or truncating errors, and only set the precision required at the end of a calculation?

Apparently it is.

Investigate:

@jorinvo
jorinvo / challenge.md
Last active April 21, 2023 17:14
This is a little challenge to find out which tools programmers use to get their everyday tasks done quickly.

You got your hands on some data that was leaked from a social network and you want to help the poor people.

Luckily you know a government service to automatically block a list of credit cards.

The service is a little old school though and you have to upload a CSV file in the exact format. The upload fails if the CSV file contains invalid data.

The CSV files should have two columns, Name and Credit Card. Also, it must be named after the following pattern:

YYYYMMDD.csv.

@mpasternacki
mpasternacki / freebsd_on_mbp.md
Created January 23, 2015 17:12
FreeBSD on a MacBook Pro

FreeBSD on a MacBook Pro

Since 2008 or 2009 I work on Apple hardware and OS: back then I grew tired of Linux desktop (which is going to be MASSIVE NEXT YEAR, at least since 2001), and switched to something that Just Works. Six years later, it less and less Just Works, started turning into spyware and nagware, and doesn't need much less maintenance than Linux desktop — at least for my work, which is system administration and software development, probably it is better for the mythical End User person. Work needed to get software I need running is not less obscure than work I'd need to do on Linux or othe Unix-like system. I am finding myself turning away from GUI programs that I used to appreciate, and most of the time I use OSX to just run a terminal, Firefox, and Emacs. GUI that used to be nice and unintrusive, got annoying. Either I came full circle in the last 15 years of my computer usage, or the OSX experience degraded in last 5 years. Again, this is from a sysadmin/developer ki

@chrisdone
chrisdone / AnIntro.md
Last active March 24, 2024 21:13
Statically Typed Lisp

Basic unit type:

λ> replTy "()"
() :: ()

Basic functions:




  


  




    


          
    

      

        
        

          

              @andfoy
          

          

            
                andfoy
                / movieLens.py
            
            

              Last active
              August 29, 2015 13:56
            

          

        

      

        

  

    
    


        



  


  

        

          
          import rbm
        

        

          
          import scipy
        

        

          
          import cpickle
        

        

          
          import numpy as np
        

        

          
          

        

        

          
          '''
        

        

          
          This implementation is based on the MovieLens 100k dataset, 
        

        

          
          available at http://grouplens.org/datasets/movielens/
        

        

          
          '''