Python圖片縮放

from PIL import Image

def size(jpg,now_size):
    im = Image.open(jpg)
    width, height = im.size
    if width>now_size:
        n=width/now_size
        w=int(width/n)
        h=int(height/n)
        resizedIm = im.resize((w,h))
        resizedIm.save(jpg)
    else:
        print('無需縮放')

def main():
    now_size = 200
    file=input('要縮放的txt文本文件路徑:')
    txt_file=file.replace('\"','').replace('\n','')
    txt_conte=open(txt_file,encoding='utf-8')
    txt_linst=txt_conte.readlines()
    for i in txt_linst:
        jpg=r'%s'%i.replace('\n','').replace('\"','').encode('utf-8').decode('utf-8-sig').strip()
        size(jpg, now_size)

if __name__ == '__main__':
    main()