lucindo

lucindo

import csv
import sys

if __name__ == '__main__':
    if len(sys.argv) != 3:
        sys.exit("%s <csv-file> <lines>" % sys.argv[0])
    infile, total = sys.argv[1], int(sys.argv[2])
    basename = infile.split('.csv')[0]
    output_count = 0
    output_handler, file_handler = None, None

lucindo

### Keybase proof

I hereby claim:

  * I am lucindo on github.
  * I am lucindo (https://keybase.io/lucindo) on keybase.
  * I have a public key ASBTuwODc0m6t_FcXwRVlIQKzAkgfuWI6ZNIz3TS_ZxP9Ao

To claim this, I am signing this object:

lucindo

import java.util.Properties;
import org.apache.log4j.PropertyConfigurator;

class MyDummyApp {
  public static void main(String []args) {
    Properties properties=new Properties();
    properties.setProperty("log4j.rootLogger","DEBUG,stdout");
    properties.setProperty("log4j.rootCategory","DEBUG");

    properties.setProperty("log4j.appender.stdout",     "org.apache.log4j.ConsoleAppender");

lucindo

## Backoff for resquests.Session
#
# A common pattern for me when using the requests library is
# to make several HTTP requests to an endpoint using a Session
# in order to mantain an open connection to the server.
#
# Many times I had to set requests.adapters.DEFAULT_RETRIES to 
# some value in order to avoid transient errors that a simple
# retry would take care of.
#

lucindo

import time
from collections import deque
from Queue import Queue
# Adding some control to Queue class
class ProcessQueue(Queue):
    """ Extends Queue to add some control methods
        Assumes only blocking put and get will be used

        There's 2 common patterns to consume items from Queue
        that are noisy and/or error prone:

lucindo

import time
# Simple Timer
class Timer:
    def __init__(self):
        self.reset()
    
    def reset(self):
        self._start = time.time()
    
    def elapsed(self): # elapsed time in seconds (float)

lucindo

# Helper class for statistics
# see: http://www.johndcook.com/blog/standard_deviation/
class Stats:
    """ Uses Welford's method to calculate stats.
        Assumes positive values.
        It's not thread safe

        stats = Stats("ConnectionTimeStats")
        stats.add(0.223)
        stats.add(1.343)

lucindo

From: https://www.youtube.com/watch?v=BHhA_ZKjyxo

# session management
tmux ls (or tmux list-sessions)
tmux new -s session-name
Ctrl-b d Detach from session
tmux attach -t [session name]
tmux kill-session -t session-name

lucindo

#include <sys/klog.h>
#include <stdlib.h>
#include <unistd.h>

int main(void) {
    int logsize = klogctl(10 /* SYSLOG_ACTION_SIZE_BUFFER */, 0, 0);
    char *bufp = malloc(logsize);
    
    klogctl(3 /* SYSLOG_ACTION_READ_ALL */, bufp, logsize);
    write(1, bufp, logsize);