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Python辅导 | Final Project – SI 507

这个project是用python爬取网站数据,并将数据可视化供用户查询

Final Project – SI 507
If you are struggling, here is a great short article by Prof. Mark Newman Becoming an
independent programmer
Milestones
There are 4 milestones that need to be turned in.
● Project Proposal Draft, due Nov 4
● Project Proposal, due Nov 18
● Project Checkpoint, due Dec 3
● Final Project Demo and Repository Link Submission, due Dec 10
Project Overview
The goal of the final project is for you to showcase what you’ve learned in 507 regarding:
● Accessing data via web APIs, including those that require authentication
● Accessing data via scraping
● Accessing data efficiently and responsibly using caching
● Using a database to store and access relational data
● Using basic python data structures and operations to analyze and process data in
“interesting” ways
● Using unit tests to verify that data access, storage, and processing works as designed
● Using a presentation tool or framework to present data to a user
● Supporting basic interactivity by allowing a user to choose among different data
presentation options
Here are a couple of examples that would be reasonable final projects:
● A program that lets a user choose a city and see the average ratings for different
restaurant types (e.g., bar, breakfast, Indian, Mediterranean) from Google, Yelp, and
OpenTable as plotly bar or scatter charts.
● A program that aggregates crime data from https://spotcrime.com/mi/ann+arbor/daily
and allows a user to select one or more crime types to see a graph of crime frequency
by month, either for a single year comparing across several years. Data is displayed
using HTML tables within a Flask App.
Project Components
There are several components that your project must contain. Each of these are detailed in this
section.
Data Sources
You must select data sources that, combined together, give you a “challenge score” of at least
8. Additionally, you must use either a Web API that requires authorization or a website where
you crawl and scrape multiple pages as one of your data sources (these options are marked
with ✣ below). Here’s how the scoring works:
Data Source Example Challenge Score***
Web API you’ve used before Twitter, iTunes, newsapi.org 2
Web API you haven’t used before that
requires no authorization
Wikipedia, Google Books 3
Web API you haven’t used before that
requires API key or HTTP Basic authorization

Yelp Fusion, Open Movie
Database
4
Web API you haven’t used before that
requires OAuth ✣
Open Table, Reddit,
Facebook, many more
6
Scraping a page/site you’ve worked with
before**
nps.gov, si.umich.edu 1
Scraping a new single page** So many! 4
Crawling [and scraping] multiple pages in a
site you haven’t used before ✣
So many! 8
CSV or JSON file you haven’t used before
with > 1000 records
Dataset from data.gov 2
Multiple related CSV or JSON files with at
least one file containing > 1000 records
Python Questions from
Stack Overflow
4
**: If you choose “scraping a new single page” you can only use this option for one of your
project sources (i.e., you can’t scrape 2 pages you haven’t scraped before and count it as 8
challenge points).
***: The challenge scores listed here are a guideline, but specific sources may be determined to
be more or less challenging depending on the details of the source and how you’re planning to
use it.
✣: You must use at least one of these options as one of your data sources.
From each source, also need to capture at least 100 records (for CSV/JSON sources you need
to capture at least 1000), and each record must have at least 5 “fields” associated with it.
If you have a source you’d like to use that you don’t think fits neatly into one of these categories,
consult with your GSI.
Data Access and Storage
You will need to create a database to store your data. Your database must have at least two
tables, and there must be at least one relation (primary key – foreign key) between the two
tables. Your data processing code (see below) must draw data from the database (i.e., not from
the API/web page/CSV or from the cache).
If you are working with APIs or web pages you must also cache the raw results (JSON or
HTML) you fetch from the source. Your code that writes data into your database must go
through the cache when building the database.
As part of grading, we may use your code to rebuild the database (so this should be an option
supported by your code) or ask you demonstrate this capability.
Data Processing
This is largely up to you, but you need to do whatever is necessary to support the data
presentation(s) your program provides. This will probably involve things like creating dictionaries
to collect sums or averages within a category (e.g., instances of crime by type, review scores by
restaurant type).
Unit Testing
You must write unit tests to show that the data access, storage, and processing components of
your project are working correctly. You must create at least 3 test cases and use at least 15
assertions or calls to ‘fail( )’. Your tests should show that you are able to access data from all of
your sources, that your database is correctly constructed and can satisfy queries that are
necessary for your program, and that your data processing produces the results and data
structures you need for presentation.
Data Presentation
Use a tool or framework to present data to users on demand. The data should be presented in
some way other than print( ) statements that output to the terminal. Your program must be
able to produce at least 4 different graphs/displays/presentations. These can be different
groupings of data, different graph types, or can differ in other ways (if you’re not sure if they’re
“different” enough, check with your GSI).
The two options we cover in class that you are most likely to want to use include:
1. Provide an interactive command line prompt for user to choose data/visualization options.
Display selected graphs using plotly.
2. Create a Flask App that uses HTML links/form elements to prompt for the user to choose
data/visualization options. Display selected data using HTML tables (or other elements, as long
as the output looks good).
3. If you’re feeling ambitious, you can figure out how to use plotly with Flask.
If you wish to use a different data presentation approach, you should check with your GSI.
What to Submit
There are three milestones to the final project, each with their own submission date and
grading.
Proposal
Due Nov 19
Describe the idea of what you are going to do and list the data sources (tech points) you are
going to use. Submit a half page to one page single spaced proposal describing your project
plan. Your proposal should include:
1. The description of what your program is intended to do. What is its purpose and who is it
aimed at?
2. The data sources you intend to use, along with your self-assessment of the “challenge
score” represented by your data source selection.
3. The presentation options you plan to support (what information are you intending to
display to users).
4. The presentation tool(s) you plan to use.
Your GSI will review your proposal draft and potentially provide feedback (if the proposal is fine,
you may not get much feedback!).
After submitting your proposal, any significant changes (e.g., to data sources or presentation
plans) will require submission of a Final Project Proposal Revision via Canvas. Follow
instructions there for how to notify your GSI that you have submitted a revision. It is strongly
recommended that you discuss any proposed changes with your GSI before submitting a
revision.
If you change your proposal plan without submitting a revision and obtaining authorization, you
risk losing lots of points on your final project grade.
Proposal Rubric (40 points)
Poor OK Good
Data sources Sources are not
identified, or are
described very
poorly.
0 Sources are
identified, but some
information is missing
4-8 Sources are
clearly identified,
with URLs linking
to a description of
the source
10
Data source
challenge
score
Data source
challenge score
is not provided
0 Data source
challenge score is
provided by has
errors or does not
meet criteria (total
>=8)
4-8 Data source
challenge score is
provided, correct,
and meets criteria
10
Presentation
options
identified
Not identified 0 Presentation
identified, but are not
clear, are not
sufficiently different,
or do not meet
criteria (options >= 4)
4-8 Presentation
options are
identified,
different, and
meet criteria
10
Presentation
tools
Not identified 0 Tools are identified,
but there are some
4-8 Tools are
identified and are
10
identified issues with clarity. appropriate
Data Collection Checkpoint
Due Dec 4
Submit screenshots showing evidence that you have been able to collect data. At a minimum,
you can show a portion of your cache file. For a better grade on this milestone, show
screenshots of your data in the DB Browser (should at least contain db columns and
number of records).
The due date for this checkpoint is in Canvas. This due date also marks the last chance you
have to make significant changes to your proposal.
Checkpoint Rubric (40 points)
Poor OK Good
Evidence of
data
collection
No evidence
provided
0 Evidence of cached
data is provided
3 Evidence of cached
data and data added
to database
5
This score assigned per data source and is multiplied by the challenge points for that data
source (maximum points is 40).
Final Project Submission and Demo
Due Dec 11
Via Canvas, You must submit a link to a GitHub repository containing your final submission.
Your GitHub repo must contain a README.md file that gives an overview of your project,
including:
● Data sources used, including instructions for a user to access the data sources
● Any other information needed to run the program (e.g., pointer to getting started info for
plotly)
● Brief description of how your code is structured, including the names of significant data
processing functions (just the 2-3 most important functions–not a complete list) and
class definitions. If there are large data structures (e.g., lists, dictionaries) that you create
to organize your data for presentation, briefly describe them.
● Brief user guide, including how to run the program and how to choose presentation
options.
Your GitHub repo must also contain a requirements.txt file that can be used by the teaching
team to set up a virtual environment in which to run your project.
Do not check in any private or secret information (e.g., API keys, passwords), but if you
are using an API that requires authentication, please submit authentication information
through canvas so that we don’t have to apply for an account.
Demo Sessions
You will sign up to give a short (< 5-minute) demo to your GSI, following a script that we will
provide as the deadline approaches. We are planning to hold demo sessions during the class
and discussion session at the last week of class (Week of Dec 9). You will get notified if we
decided to change the form of demo. Note that the project is due at 11:59pm on Monday, 12/9,
so you should have your project finished by the Tuesday morning class.
If you are unable to attend a demo session during the scheduled times, please contact the
teaching team as soon as possible to make alternative arrangements.
Final Project Rubric (300 points)
Poor OK Good
Project proposal
Project not
described with 0
Project provides
some detail about 10-20
Projects clearly
articulates what the 30
any level of
meaningful detail
about data
sources and
program purpose
sources and
program purpose,
but not in enough
detail to evaluate
its fit with the
requirements
program is intended
to do, what data
sources will be
used, and how you
are thinking to
display the output
Data sources:
challenge and
access
Challenge level is
substantially
below expectation
and/or external
data is not
accessed by the
program. 0
Challenge level
falls short of
criteria and/or
program access
some but not all
required
information.
Program may not
be able to access
all relevant
information from
one or more
source. 12-24
Challenge level
meets criteria.
Program
successfully access
at least 100 records
from all data
sources (all records
if CSV or JSON file) 30
Data storage:
caching
No caching is
used. 0
Caching works for
some but not all
sources. 12-24
Program uses
caching correctly for
all web-based
sources. 30
Data storage:
database
No database is
used. 0
Program uses only
one table, or fails
to model at least
one relationship
between tables. 10-20
Program writes to at
least 2 database
tables and uses
relations
appropriately 30
Data processing
No data
processing, only
raw data is
displayed. 0
Program produces
data structures
and results
needed for
presentation, but
poor choices are
used for data
structures and
processing. 12-24
Program creates
data structures and
data processing
results needed for
presentation. At
least one class is
defined. Lists and
dictionaries are
used where
appropriate. 30
Unit testing
No tests
provided, or all
tests failed. 0
Some tests are
defined, but the
number, coverage,
and/or quality do 12-24
The number,
coverage, and
quality of tests is
adequate to show 30
not meet stated
expectations.
that data access,
storage, and
processing work
well.
Presentation:
interaction
No interactive
capability shown,
or no
presentation
options offered. 0
Presentation
options and
diversity are below
expectations,
and/or interactive
options and input
are presented
poorly and/or input
error handling is
poor. 12-24
The number and
diversity of
presentation options
meet project criteria.
Interactive input is
presented clearly
and errors are
handled gracefully. 30
Overall quality
No presentation
is shown or
project lacks any
coherence. 0
Data presentation
lacks clarity or
professionalism,
and/or the project
lacks coherence or
insight. 12-24
Data presentation is
clear and
reasonably
attractive. The
project is coherent
and produces
interesting insights. 30
Code quality:
modularity,
comments,
readability Can’t happen? 0
Code is messy,
difficult to read, or
employs Python
features poorly. 10-20
Code is well written.
Python features
such as classes and
functions are used
appropriately. Code
is readable (line
length, variable and
function names,
small functional
blocks where
possible). 30
Demo
presentation No demo. 0
Demo reflects poor
preparation and/or
some elements
are missing. 10-20
Student is well
prepared for demo
and shows all
required elements
clearly and
efficiently. 30
Total 300


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