A list of code examples used in class.

2024-05-02

• mp9solution.py is an example solution to MP9, released to assist those who didn’t complete MP9 and want code they can use to work on the final project.

2024-04-11

• store-blob.py uses MinIO to store and retrieve data
• store-keyval.py uses Redis to store and retrieve data
• store-object.py uses MongoDB to store and retrieve data

2024-04-09

• docker-stuff.zip, including

  • Dockerfile-01, our simplest Dockerfile
  • Dockerfile-02, with copies a directory of files
  • somedir/hello.txt, the file to be copied
  • Dockerfile-03, which runs a file
  • somedir/create.sh, the file to be run
  • coinflip/Dockerfile, defining our own containerized app
  • coinflip/app.py, the app to put in that container

2024-04-02

• etag-track.py uses caching to track users

2024-03-19

• decorators1.py introducing functions that modify other functions
• decorators2.py introducing Python’s decorator syntax
• decorators3.py introducing stateful decorators with classes
• decorators4.py introducing state-modifying decorators like flask uses
• flask-demo.py introducing the use of Flask

2024-03-07

• hve.py, the high-value exchange example from the thread safety page
• dp.py, on version of the dining philosophers problem
• sbp.py, a nearly-correct simulation of the sleeping barber problem

2024-03-05

Socket code in Python:

• socket-inspector.py, a version of socket-inspector.c that runs in Python instead of C

Four versions of essentially the same threaded code:

• count.c uses pthreads in C, demonstrating a data race
• count.py is count.c converted to Python
• count2.py is count.py but bypasses the Global Interpreter Lock
• countj.py is count.py written in an older version of Python that can be run in Jython

The two most common synchronization primitives:

• use-lock.py uses a Lock
• use-condition-variable.py uses a Condition Variable

2024-02-29

These files are numbered by the corresponding section of the Python text page You can download all 22 of them as a .zip file.

• 01-types.py
• 02-decl.py
• 03-scope.py
• 04-perf.py
• 05-mutable.py
• 06-unwrap.py
• 07-bytes.py
• 08-strlit.py
• 09-docstr.py
• 10-hashes.py
• 11-values.py
• 12-types.py
• 13-int.py
• 14-complex.py
• 15-div.py
• 16-retval.py
• 17-args.py
• 18-class.py
• 19-nothis.py
• 20-comprehensions.py
• 21-generators.py
• 22-closure.py

2024-02-27

• mp4startercode.c one of the files from MP4 and a starter for the socket-inspector.c program we wrote in class
• socket-inspector.c the file we made in class out of mp4startercode

2024-02-06

• stack-memory.c demonstrates both valid and invalid use of stack memory and the sizeof operator.
• global-memory.c demonstrates both valid and invalid use of global memory and const.

2024-01-30

• mem-undefined.c a variety of mostly-undefined-behavior memory operations.

2024-01-25

• mystrlen.c showing several possible implementations of strlen and the use of goto.
• mystrlen.c’s assembly in both x86-64 and ARM, showing how code is actually stored to be executed.
• memory-inspector.c for viewing bytes used by various data structures, with different things to inspect than last time.

2024-01-18

• memory-inspector.c for viewing bytes used by various data structures.