使用requests開發一個接口測試工具

import requests

import traceback

class Inert(object):

__left_limit, __right_limit = '${', '}'

def __init__(self, base_url: str):
    self.base_url = base_url
    self.session = requests.Session()
    self.response = None
    self.json_resp = None
    self.params_pool = {}

def send_post_request(self, route: str, params=None):
    new_params = self.__format_statement(params)
    data = self.__format_params(params=new_params)
    try:
        self.response = self.session.post(self.base_url + route, data=data).text
    except Exception:
        print('[info] connect host error!')
    if self.response:
        try:
            self.json_resp = eval(self.response)
        except Exception:
            print(traceback.print_exc())

def send_get_request(self, route: str, params=None):
    try:
        self.response = self.session.get(url=self.base_url + route, params=params).text
    except Exception:
        print('[info] connect host error')
    if self.response:
        try:
            self.json_resp = eval(self.response)
        except Exception:
            print(traceback.print_exc())

def __format_params(self, params: str):
    """
    :param params: 需要解析的參數
    :return: 傳回一個dict對象
    """
    new_dict = {}
    if not params:
        return
    if isinstance(params, dict):
        return params
    try:
        string_list = params.split("&")
        for string in string_list:
            index = string.find('=')
            key = string[:index]
            value = string[index + 1:]
            new_dict[key] = value
        return new_dict
    except Exception:
        print('[info] 參數有誤！')

def save_param(self, key_name):
    """
    将參數添加到參數池中
    :param key_name:新的鍵名
    :return:
    """
    try:
        self.params_pool[key_name] = self.json_resp[key_name]
    except Exception:
        print("[info]參數不存在")

def add_headers(self, new_key, statement: str):
    """
    将參數添加到請求頭中
    :param new_key:添加至請求頭中的鍵名
    :param statement:
    :return:
    """
    value = self.__format_statement(statement=statement)
    try:
        self.session.headers[new_key] = value
    except Exception:
        print('[info]參數不存在!')

def __format_statement(self, statement: str):
    """
    :param statement: 對在參數池中的參數嘗試進行格式化
    :return: 若statement存在或格式化失敗則傳回原語句，否則否會格式化後的語句
    """
    if isinstance(statement, dict):
        return statement
    if statement:
        for key in self.params_pool:
            statement = statement.replace(
                self.__left_limit + key + self.__right_limit,
                self.params_pool[key]
            )
    return statement

def delimiter(self, lift: str, right: str):
    """
    修改邊界符
    :param lift: 左邊界符
    :param right: 右邊界符
    :return:
    """
    self.__left_limit = lift
    self.__right_limit = right