Andrew Parsons afparsons

Studying for a Tech Interview Sucks, so Here's a Cheat Sheet to Help

This list is meant to be a both a quick guide and reference for further research into these topics. It's basically a summary of that comp sci course you never took or forgot about, so there's no way it can cover everything in depth. It also will be available as a gist on Github for everyone to edit and add to.

Data Structure Basics

###Array ####Definition:

Stores data elements based on an sequential, most commonly 0 based, index.
Based on tuples from set theory.

	ZCTA5CE10	count
	49008	15
	49036	1
	49740	1
	49506	5
	48170	4
	48302	5
	49009	10
	49017	1
	48306	4

	# Enhanced Django QuerySet printing using PrettyPrinter
	# Example usage: dropped into and employed within an IPython notebook.

	# --- PRETTYPRINT -------------------------------------------------------------
	# A PrettyPrinter object contains a _dispatch dictionary.
	# This lookup table contains (key, value) pairs wherein the key corresponds to
	# an object's __repr__ method, and the value is a special _pprint_<OBJECT>
	# method. The PrettyPrint method pprint() queries the dictionary to call the
	# appropriate object printer.

	# standard library imports
	from operator import attrgetter
	from typing import Union, Generator

	# third-party library imports
	from pandas import DataFrame
	from spacy.tokens import Token, Span, Doc


	def analyze_tokens(

	from typing import Dict
	from pandas import DataFrame
	from taggit.models import TaggedItem
	from django.db.models import Q, Count


	def get_tag_counts() -> DataFrame:
	"""
	Returns a DataFrame with the counts of django-taggit TaggedItems by
	Tag name and ContentType model name.