stevedoyle

from StringIO import StringIO
from lxml import objectify

class SampleParser:

    def __init__(self, xml_data):
        tree = objectify.parse(xml_data)
        self.root = tree.getroot()

    def student_names(self):

stevedoyle

import copy
import os
from lxml import objectify

namespace = 'http://www.garmin.com/xmlschemas/TrainingCenterDatabase/v2'

def remove_laps():
    pass

def count_laps(tree_root):

stevedoyle

# virtualenv setup
cd proj_folder
virtualenv venv

# or with a particular version of python
virtualenv -p /usr/bin/python2.7 venv

# Activate it
source venv/bin/activate

stevedoyle

p = [(1,2,3), (2,4), (1,6)]
set(itertools.chain(*p))
=> {1,2,3,4,5,6}

where:
*p expands the list elements into separate arguments
itertools.chain() chains all of the individual elements of each parameter (the tuple from p in this case) into a single iterable stream.

stevedoyle

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

stevedoyle

Git Cheatsheet

Fetching and Pulling

Task	Command
Fetch for later merging	git fetch [remote name]
Pull and merge	git pull [remote name]
Pull and rebase local changes on top (instead of merging)	git pull --rebase [remote name]
Clone only a subset of files	git init repo cd repo git remote add origin url git config core.sparsecheckout true echo "path/*" >> .git/info/sparse-checkout git pull --depth=1 origin master

stevedoyle

Octave CheatSheet

GNU Octave is a high-level interpreted language, primarily intended for numerical computations.
(via GNU Octave)

Basics

• not equal ~=
• logical AND &&

stevedoyle

def mpps(gbps, size):
	return (gbps / (size * 8)) * 1000
	
def gbps(mpps, size):
	return mpps * size * 8 / 1000;
	
def pkt_size(gbps, mpps):
	return (gbps * 1000) / mpps / 8
	
##################################################

stevedoyle

#ifndef _TIMESTAMP_H_
#define _TIMESTAMP_H_

static inline uint64_t timestamp_start(void)
{
	union {
		uint64_t tsc_64;
		struct {
			uint32_t lo_32;
			uint32_t hi_32;

stevedoyle

PowerShell Notes

Searching/Grepping files

PowerShell equivalent of egrep:

Select-String <string>

and egrep -r:

dir -Recurse | Select-String <string>