alfakini

#!inbox

I am passionate about Ruby, but its execution time compared to other languages is extremely high, especially when we want to use more complex algorithms. In general, data structures in interpreted languages become incredibly slow compared to compiled languages. Some algorithms such as ´n-body´ and ´fannkuch-redux´ can be up to 30 times slower in Ruby than Go. This is one of the reasons I was interested in embedding Go code in a Ruby environment.

For those who do not know how shared libraries operate, they work in a similar way as DLLs in Windows. However, they have a native code with a direct interface to the C compiler.

Note

alfakini

× Done - In progress

#	Cidade	Crawler	Parser
1	São Paulo
2	Rio de Janeiro	-
3	Brasília
4	Salvador

alfakini

import os
from PIL import Image
from PIL.ImageOps import grayscale
from watchdog.events import RegexMatchingEventHandler

class ImagesEventHandler(RegexMatchingEventHandler):
    THUMBNAIL_SIZE = (128, 128)
    IMAGES_REGEX = [r".*[^_thumbnail]\.jpg$"]

    def __init__(self):

alfakini

import sys
import time

from watchdog.observers import Observer
from .events import ImagesEventHandler

class ImagesWatcher:
    def __init__(self, src_path):
        self.__src_path = src_path
        self.__event_handler = ImagesEventHandler()

alfakini

def on_created(self, event):
    file_size = -1
    while file_size != os.path.getsize(event.src_path):
        file_size = os.path.getsize(event.src_path)
        time.sleep(1)

    self.process(event)

alfakini

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