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import streamlit as st
# Grade to points mapping
grade_points = {
'A+': 4.0,
'A': 4.0,
'A-': 3.7,
'B+': 3.3,
'B': 3.0,
'B-': 2.7,
'C+': 2.3,
'C': 2.0,
'C-': 1.7,
'D': 1.0,
'F': 0.0
}
# Initialize session state
if 'courses' not in st.session_state:
st.session_state.courses = []
st.title("🎓 GPA Calculator")
st.subheader("Calculate your Semester GPA")
# Course input form
with st.form("course_form"):
col1, col2, col3 = st.columns([3, 1, 1])
with col1:
course_name = st.text_input("Course Name (optional)", key=f"name_{len(st.session_state.courses)}")
with col2:
credits = st.number_input("Credits", min_value=1, max_value=5, value=3, key=f"credits_{len(st.session_state.courses)}")
with col3:
grade = st.selectbox("Grade", list(grade_points.keys()), key=f"grade_{len(st.session_state.courses)}")
submitted = st.form_submit_button("Add Course")
if submitted:
st.session_state.courses.append({
'name': course_name,
'credits': credits,
'grade': grade
})
# Display entered courses
if st.session_state.courses:
st.write("### Entered Courses")
for i, course in enumerate(st.session_state.courses, 1):
with st.expander(f"Course {i}: {course['name'] or 'Unnamed Course'}"):
col1, col2, col3 = st.columns([3, 1, 1])
col1.write(f"Course Name: {course['name'] or 'N/A'}")
col2.write(f"Credits: {course['credits']}")
col3.write(f"Grade: {course['grade']}")
# Calculate GPA
if st.button("Calculate GPA"):
total_points = 0
total_credits = 0
for course in st.session_state.courses:
points = grade_points[course['grade']]
total_points += points * course['credits']
total_credits += course['credits']
if total_credits == 0:
st.error("Please add at least one course with credits")
else:
gpa = total_points / total_credits
st.success(f"Your GPA is: **{gpa:.2f}**")
# Display detailed breakdown
st.write("### Breakdown")
st.write(f"Total Quality Points: {total_points:.2f}")
st.write(f"Total Credits: {total_credits}")
st.write(f"GPA: {gpa:.2f}")
# Reset button
if st.button("Reset All Courses"):
st.session_state.courses = []
st.experimental_rerun() |