python处理excel和调用http接口实战案例

功能描述：
调用第三方接口获取数据，并写入excel中。
用到了在Python中读取和写入excel，如何调用http接口，如何对接口返回json处理。
代码：

#!/usr/bin/python3
# -*- coding: UTF-8 -*-

import time
import json
import requests
from openpyxl.reader.excel import load_workbook

#初始化数值
access_token = 'xxxx'
file_name = 'D:/test/test.xlsx'
file_name_result = 'D:/test/test-resu.txt'
file_name_except = 'D:/test/test-except.txt'
#记录下token
token_list = []
token_list.append(access_token)

#获取接口信息
def getinfo(CAR_ID,i):
    global access_token
    try:
        url = "http://192.168.1.1:8000/xxxxxx"
        headers = {
     "Content-Type": "application/json;charset=utf-8"}
        params = {
     "access_token":access_token}
        body = {
     "SID":"xx001",
                "CAR_ID":CAR_ID}
        r = requests.post(url, params=params, data=json.dumps(body), headers=headers)
        #print("获取返回的状态码", r.status_code)
        json_r = r.json()
        #print("json类型转化成python数据类型", json_r)
        # 转换成字典格式
        d = json.loads(r.text)
        # 从字典里取 data 数组
        dataList = d.get('data')
        if d.get('code') != 200:
            url = "http://192.168.1.1:8000/xxxxxx/oauth2/token"
            headers = {
     "Content-Type": "application/x-www-form-urlencoded;charset=utf-8"}
            body = {
     "grant": "client1",
                    "client": "xxxxxxxx"}
            r = requests.post(url, data=body, headers=headers)
            d = json.loads(r.text)
            dataList = d.get('custom')
            access_token = dataList['access_token']
            url = "http://192.168.1.1:8000/xxxxxx/xxxxx"
            headers = {
     "Content-Type": "application/json;charset=utf-8"}
            params = {
     "access_token": access_token}
            body = {
     "SID": "xx001",
                    "CAR_ID":CAR_ID}
            r = requests.post(url, params=params, data=json.dumps(body), headers=headers)
            d = json.loads(r.text)
            dataList = d.get('data')
        #此部分根据接口返回参数修改，如下是例子
        CAR_ID= dataList[0][0]['ID']  
        DM = dataList[0][0]['DM'] 
        XX = dataList[0][0]['XX'] 
        YY = dataList[0][0]['YY'] 
        #组合成list
        list = [ID, DM,XX,YY]
        #print("请求成功！", CAR_ID,"第",i,"行")
    except BaseException as e:
        print("请求失败！", str(e),CAR_ID,"第",i,"行")
        list = [ID,'','','']
    return list

startdatetime = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())
# 打开xls文件
wb = load_workbook(file_name)
# 获取所有表格(worksheet)的名字
sheets = wb.get_sheet_names()
# 第一个表格的名称
sheet_first = sheets[0]
#获取特定的worksheet
ws = wb.get_sheet_by_name(sheet_first)
# 获取表的行数
rows = ws.max_row
cols = ws.max_column

for i in range(rows+1): # 循环逐行遍历
    if i < 1:
        continue
    else:
        CAR_ID = ws.cell(row=i, column=1).value
        list = getinfo(CAR_ID,i)
        #access_token = getinfo.token
        #写文件
        try:
            file = open(file_name_result, 'a')
            s = str(list).replace('[', '').replace(']', '')  # 去除[],这两行按数据不同，可以选择
            s = s.replace(' ', '').replace("'", '') + '\n'  # 去除单引号，逗号，每行末尾追加换行符
            file.write(s)
            file.close()
            print("写入成功！", CAR_ID, "第", i, "行")
        except BaseException as e:
            print("写入失败！", str(e), CAR_ID, "第", i, "行")
            file = open(file_name_except, 'a')
            file.write("第"+str(i)+"行："+CAR_ID+str(e)+'\n')
            file.close()
            pass
        continue

enddatetime = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())
token_list.append(access_token)
print("使用的token",token_list)
print(file_name,"执行完成！开始时间：",startdatetime,"结束时间：",enddatetime)