流程：

　　1.獲取前端的檔案

　　2.判斷檔案是否zip檔案

　　3.解壓壓縮包並儲存

　　4.遍歷解壓後的資料夾

　　5.判斷檔案是否py檔案，將絕對路徑新增到列表

　　6.迴圈列表，排除註釋和空號，統計行數

from flask import Blueprint
from flask import render_template
from flask import request
from flask import current_app
import time
import os
import shutil

uploadBlue = Blueprint("uploadBlue
 
",__name__)

@uploadBlue.route("/upload",methods=["GET","POST"])
def upload():
    error = ""
    if request.method == "POST":
        # 獲取前端的上傳的檔案
        file = request.files.get("file")
        # 判斷後綴是否zip的檔案
        zip_file = file.filename.rsplit(".",1)
        if zip_file[-1] != "zip":
            
 
return render_template("upload.html", error="上傳的不是zip檔案，請重新上傳")

        # 解壓儲存
        t = int(time.time())
        upload_path = os.path.join(current_app.config.root_path,"files",str(t))
        try:
            shutil._unpack_zipfile(file,upload_path)        # 解壓檔案
        except Exception as e:
            
 
print(e)
            shutil.rmtree(upload_path)          # 刪除非空資料夾
            return render_template("upload.html", error="檔案解壓異常")

        # 遍歷儲存的資料夾得到所有.py檔案
        file_list = []
        for (dirpath,dirname,filenames) in os.walk(upload_path):
            # 判斷檔案是否py結尾，如果是則將絕對路徑新增到列表
            for file in filenames:
                if file.rsplit(".",1)[-1] == "py":
                    file_path = os.path.join(upload_path,file)
                    file_list.append(file_path)
        num = 0
        for pyfile in file_list:
            with open(pyfile,mode='rb') as f:
                for line in f:
                    # 井號開頭或者空行則跳過
                    if line.replace(b" ",b"").strip().startswith(b"#") or not line.strip():
                        continue
                    num += 1
        return str(num)

    return render_template("upload.html",error=error)