font_setup.py

import os
import matplotlib.pyplot as plt
import matplotlib.font_manager as fm

# Install Japanese fonts
os.system("apt-get update && apt-get install -y fonts-noto-cjk")

# Set font path and apply
font_path = "/usr/share/fonts/opentype/noto/NotoSansCJK-Regular.ttc"
if os.path.exists(font_path):
    font_prop = fm.FontProperties(fname=font_path)
    plt.rcParams["font.family"] = font_prop.get_name()
    print(f"✅ Japanese font applied: {font_prop.get_name()}")
else:
    print("❌ Japanese font not found")
font_properties = font_prop if os.path.exists(font_path) else None