python 利用jinja2模板生成html

Posted 2020-11-15 南鱼

 1 from jinja2 import Environment, FileSystemLoader
 2 import json
 3 
 4 
 5 def generate_html(data):
 6     env = Environment(loader=FileSystemLoader(‘./‘))   # 加载模板
 7     template = env.get_template(‘模板.html‘)
 8     # template.stream(body).dump(‘result.html‘, ‘utf-8‘)
 9 
10     with open("result.html", ‘w‘) as fout:
11 
12         html_content = template.render(data={})
13         fout.write(html_content)    #  写入模板 生成html 
14 
15 if __name__ == "__main__":
16     result = {}
17     generate_html(result)

#### 脚本执行  添加进度信息

ff = open(‘1.txt‘,‘w‘)


def open_file(file_name):
    try:
        with open(file_name,‘a+‘)as f:  # 例如打开一个大文件
            fsize = os.path.getsize(file_name)   # 先计算大文件大小
            line_list_size = 0

            for line_list in f:    
                line_list_size += sys.getsizeof(line_list)  # 计算处理文件大小
                done = int(float(line_list_size)/ fsize*10)   # 计算进度
                sys.stdout.write("
[%s%s] %d%%" % (‘█‘ * done*2, ‘ ‘ * (20 - done*2), 10 * done))
                sys.stdout.flush()  # 刷新到控制台
                
    except Exception, e:
        print e
        return ‘文件操作失败‘


if __name__ == "__main__":
    file_name = ‘235‘
    print ‘---- start ----‘
    open_file(file_name)
    print ‘
---- end ----‘