修复绩点字段为空导致崩溃并统一成绩返回类型

scripts/get_grade.py

@@ -9,6 +9,13 @@ def get_grade(student_client, output_type="none"):
         # 初始化grade为空列表
         grade = []
 
+        # 定义安全的float转换函数，避免None/空字符串导致异常
+        def safe_float(value, default=0.0):
+            try:
+                return float(value)
+            except (TypeError, ValueError):
+                return default
+
         # 使用while循环最多重试5次获取成绩信息
         while attempts > 0:
 
@@ -28,20 +35,25 @@ def get_grade(student_client, output_type="none"):
         # 成绩不为空时
         if grade:
             # 过滤出成绩大于等于60分的课程
-            filtered_grade = list(filter(lambda x: float(x["percentage_grades"]) >= 60, grade))
+            filtered_grade = list(
+                filter(lambda x: safe_float(x.get("percentage_grades")) >= 60, grade)
+            )
 
             # 遍历 grade 中的每个字典，将 title 中的中文括号替换为英文括号
             for course_data_grade in grade:
-                course_data_grade["title"] = (
-                    course_data_grade["title"].replace("（", "(").replace("）", ")")
-                )
+                if course_data_grade.get("title"):
+                    course_data_grade["title"] = (
+                        course_data_grade["title"].replace("（", "(").replace("）", ")")
+                    )
 
             # 按照提交时间降序排序
             # 对于没有提交时间参数的成绩，则将提交时间设置为1970-01-01 00:00:00，否则将无法排序
             sorted_grade = sorted(
                 grade,
                 key=lambda x: (
-                    x["submission_time"] if x["submission_time"] else "1970-01-01 00:00:00"
+                    x.get("submission_time")
+                    if x.get("submission_time")
+                    else "1970-01-01 00:00:00"
                 ),
                 reverse=True,
             )
@@ -49,24 +61,28 @@ def get_grade(student_client, output_type="none"):
             # 大于等于60分的课程不为空时
             if filtered_grade:
                 # 学分总和
-                total_credit = sum(float(course["credit"]) for course in filtered_grade)
+                total_credit = sum(safe_float(course.get("credit")) for course in filtered_grade)
 
                 # 学分绩点总和
-                total_xfjd = sum(float(course["xfjd"]) for course in filtered_grade)
+                total_xfjd = sum(safe_float(course.get("xfjd")) for course in filtered_grade)
 
                 # (百分制成绩*学分)的总和
                 sum_of_percentage_grades_multiplied_by_credits = sum(
-                    float(course["percentage_grades"]) * float(course["credit"])
+                    safe_float(course.get("percentage_grades")) * safe_float(course.get("credit"))
                     for course in filtered_grade
                 )
 
                 # GPA计算 (学分*绩点)的总和/学分总和
-                gpa = "{:.2f}".format(total_xfjd / total_credit)
+                if total_credit > 0:
+                    gpa = "{:.2f}".format(total_xfjd / total_credit)
 
-                # 百分制GPA计算 (百分制成绩*学分)的总和/学分总和
-                percentage_gpa = "{:.2f}".format(
-                    sum_of_percentage_grades_multiplied_by_credits / total_credit
-                )
+                    # 百分制GPA计算 (百分制成绩*学分)的总和/学分总和
+                    percentage_gpa = "{:.2f}".format(
+                        sum_of_percentage_grades_multiplied_by_credits / total_credit
+                    )
+                else:
+                    total_credit = total_xfjd = sum_of_percentage_grades_multiplied_by_credits = 0
+                    gpa = percentage_gpa = 0
             else:
                 total_credit = total_xfjd = sum_of_percentage_grades_multiplied_by_credits = gpa = (
                     percentage_gpa
@@ -80,24 +96,24 @@ def get_grade(student_client, output_type="none"):
 
                 # 如果成绩非数字，如及格、良好、中等、优秀等，则显示百分制成绩
                 try:
-                    float(course["grade"])  # 检查成绩是否为数字
-                    score_grades = course["grade"]
-                except ValueError:
-                    score_grades = f"{course['grade']} ({course['percentage_grades']})"
+                    float(course.get("grade"))  # 检查成绩是否为数字
+                    score_grades = course.get("grade")
+                except (TypeError, ValueError):
+                    score_grades = f"{course.get('grade')} ({course.get('percentage_grades')})"
 
                 # 整合成绩信息
                 integrated_grade_info += (
                     f"\n"
-                    f"教学班ID：{course['class_id']}\n"
-                    f"课程名称：{course['title']}\n"
-                    f"任课教师：{course['teacher']}\n"
+                    f"教学班ID：{course.get('class_id')}\n"
+                    f"课程名称：{course.get('title')}\n"
+                    f"任课教师：{course.get('teacher')}\n"
                     f"成绩：{score_grades}\n"
-                    f"提交时间：{course['submission_time']}\n"
-                    f"提交人姓名：{course['name_of_submitter']}\n"
+                    f"提交时间：{course.get('submission_time')}\n"
+                    f"提交人姓名：{course.get('name_of_submitter')}\n"
                     f"------"
                 )
 
-            last_submission_time = sorted_grade[0]["submission_time"]
+            last_submission_time = sorted_grade[0].get("submission_time") if sorted_grade else ""
 
             if output_type == "grade":
                 return grade
@@ -114,4 +130,6 @@ def get_grade(student_client, output_type="none"):
 
     except Exception:
         print(traceback.format_exc())
+        if output_type == "grade":
+            return []
         return "获取成绩时出错"