Hands-On Software Engineering with Python

Filesystem – based

Requests and responses from and to the local filesystem are typically (and unsurprisingly) concerned with reading and writing data from and to local files. The simplest request-and-response structure of this type is a service that reads data from one file, processes it, and writes the results out to another file, possibly deleting or flushing out the incoming file on every read, and either replacing the output file on every write, or appending to it as each response is generated and returned. Implementations for single input and output files may leverage the stdin and stdout functionality of Python's sys module, or override either (or both) of them.

Both Windows and POSIX operating systems (Linux, macOS) have special file ...