#! /usr/bin/evn python
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"""
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Programm zum Berechnen den Aufwand für das Selbststudium pro Woche in einem Semester.
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Das Semester hat 15 Woche.
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Eine Doppelstunde (DS) entspricht 90 Minuten. Ein ECTS entspricht einen Aufwand von 30 Stunden.
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Eine Veranstaltung (Vorlesung, Übung, Tutorium) ist 2 DS.
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Die Vorlesungen in einem Semester werden in einer Text-Datei erfasst. Ein Template ist wie folgt:
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```txt
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#Name; ECTS; Veranstaltung pro Woche
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Programmierung 2; 5; 2
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Mathematik 2; 5; 3
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```
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Usage:
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$python effort_semester.py Vorlesungen.txt
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Vorlesung ECTS V-Ü-T/Woche Selbstudiumszeit pro Woche
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Programmierung 2 5 2 <>
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Mathematik 2 5 3 <>
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--------------------------------------------------------------------------------
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<>
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"""
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import sys
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from typing import Final, Any
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SEMESTER_LENGTH: Final[int] = 15 # 15 Woche pro Semester
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ECTS_EFFORT = 30 # 1 ECTS ~ 30 h
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DS = 1.5 # DS = Doppelstunde = 2 Unterrichtstunden
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def parse_line(line: str) -> tuple[str, float, float]:
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line = line.strip()
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line = [e.strip() for e in line.split(";")]
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return line[0], float(line[1]), float(line[2])
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def collect_lectures_from_file(lecture_filename:str) -> list[tuple[str, float, float]]:
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# Your code here
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lectures = []
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with open(lecture_filename) as file:
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while line := file.readline():
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line = line.strip()
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if len(line) > 0 and line[0] != '#':
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line = parse_line(line)
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lectures.append( line )
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return lectures
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def lecture_effort(lecture: tuple[str, float, float]) -> float:
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sum_effort = lecture[1] * ECTS_EFFORT
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lecture_effort = SEMESTER_LENGTH * (lecture[2] * DS)
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return (sum_effort - lecture_effort) / SEMESTER_LENGTH
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def compute_semester_effort(lectures: list[tuple[str, float, float]]) -> list[tuple[str, float, float, float]]:
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effort = [
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(e[0], e[1], e[2], lecture_effort(e)) for e in lectures
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]
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return effort
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def print_effort(effort: list[tuple[str, float, float, float]]) -> None:
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header = ("Vorlesung", "ECTS", "V;U;T/Woche", "Aufwand/Woche")
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max_char = len(header)
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sep_width = 0
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sum_effort = 0
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for l in effort:
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if (c := len(l[0])) > max_char:
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max_char = c
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sum_effort += l[-1]
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lecture_col_width = sep_width + max_char
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ects_width = len(header[1])
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veranstaltung_col_width = len(header[2])
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effort_col_width = len(header[3])
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def format_line(line: list[tuple[Any, Any, Any, Any]] ):
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lecture = f"{line[0]}".rjust(lecture_col_width)
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ects = f"{line[1]}".center(ects_width)
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v = f"{line[2]}".center(veranstaltung_col_width)
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e = f"{line[3]}".center(effort_col_width)
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return f"{lecture} {ects} {v} {e}"
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print(format_line(header))
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for l in effort:
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print(format_line(l))
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print(f"Summe: {sum_effort}")
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if __name__ == "__main__":
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lecture_filename = sys.argv[1]
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lectures = collect_lectures_from_file(lecture_filename)
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effort = compute_semester_effort(lectures)
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print_effort(effort)
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