Disk usage by top-level directory · Python practice

Disk usage by top-level directory

Beginner~8 min

You have a list of [path, size_bytes] pairs for files, with absolute POSIX paths such as /var/log/syslog. Sum the sizes per top-level directory (/var, /home, ...). Files directly in / count under /.

Function

Implement usage_by_top_dir. Input: files: list[[str, int]]. Returns: dict[str, int].

Examples

>>> usage_by_top_dir([['/var/log/syslog', 300], ['/var/lib/x', 200], ['/home/a/.bashrc', 50], ['/vmlinuz', 10]])

{'/': 10, '/var': 500, '/home': 50}

Details

Level: Basic syntax, loops, strings, lists and dictionaries. One idea per problem.
Roles: DevOps Engineer, Automation Engineer, Site Reliability Engineer
Topics: Dictionaries, Strings, Files and configuration
Tests: 1 public (run with Run), 2 hidden (graded on Submit)
Grading: Exact match of the return value

Function

Implement usage_by_top_dir. Input: files: list[[str, int]]. Returns: dict[str, int].

Examples

>>> usage_by_top_dir([['/var/log/syslog', 300], ['/var/lib/x', 200], ['/home/a/.bashrc', 50], ['/vmlinuz', 10]])

{'/': 10, '/var': 500, '/home': 50}

Details

Level: Basic syntax, loops, strings, lists and dictionaries. One idea per problem.
Roles: DevOps Engineer, Automation Engineer, Site Reliability Engineer
Topics: Dictionaries, Strings, Files and configuration
Tests: 1 public (run with Run), 2 hidden (graded on Submit)
Grading: Exact match of the return value

Python 3.13

def usage_by_top_dir(files: list[list]) -> dict[str, int]:
    pass

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