How to avoid error: name 'score history' is not defined in modules section in Python for absolute beginners by Mark Winerbottom

Question

我正在学习模块部分 Mark Winterbottom 为绝对初学者开设的课程 Python。我已经完成了一项后续任务，并且我确实遵循了每一步，但它给了我一个 Mark 没有得到的错误。请帮忙。这是完整的代码（第一个模块部分，然后是脚本）：

"""
Module for exam predictions. 
"""

def get_avg(score_histrory):
    """Takes a list of previous grades and returns average."""
    return sum(score_history) / len(score_history)

def predict_score(score_history, min_score=0):
    """Takes a list of previous persentage grades and returns the average."""
    score_avg = get_avg(score_history)
    if score_avg < min_score:
        return min_score 
    
    return score_avg 
"""
Functions for calculating results.
"""
A_THRESHOLD = 70
B_THRESHOLD = 60
C_THRESHOLD = 50
D_THRESHOLD = 40
E_THRESHOLD = 30 

def get_grade(score):
    """Accepts a score and returns a letter version."""
    if score >= A_THRESHOLD:
        return 'A'
    elif score >= B_THRESHOLD:
        return 'B'
    elif score >= C_THRESHOLD:
        return 'C'
    elif score >= D_THRESHOLD:
        return 'D'
    elif score >= E_THRESHOLD:
        return 'E'
    
    return 'F'

"""
Srcipt for proccessing students grades.
"""
from grades.predict import predict_score 
from grades.results import get_grade 

score_history = [5, 10, 10, 2]

predicted_score = predict_score(score_history)

predicted_grade = get_grade(predicted_score)
print(f'The students predicted grade is: {predicted_grade}')

NameError: 名称 'score_history' 未定义

非常感谢。这是我第一次在这里提问。希望大家多多支持

Answer 1

我认为您的代码“history”而不是“history”中有一个拼写错误：

def get_avg(score_history):
"""Takes a list of previous grades and returns average."""
    return sum(score_history) / len(score_history)

How to avoid error: name 'score history' is not defined in modules section in Python for absolute beginners by Mark Winerbottom

How to avoid error: name 'score history' is not defined in modules section in Python for absolute beginners by Mark Winerbottom

python

nameerror