-sharp -*- coding: utf-8 -*-
import time
import json
import tempfile
from PIL import Image
from selenium import webdriver

-sharp keys
from selenium.webdriver.common.keys import Keys


class CreditSpider(object):

    def __init__(self):
        -sharp PhantomJS
        self.driver = webdriver.PhantomJS()
        -sharp self.driver.maximize_window()  -sharp 

        -sharp PhantomJS
        -sharp self.driver = webdriver.PhantomJS(executable_path="/Users/bianyachao/Downloads/phantomjs-2.1.1-macosx/bin/phantomjs")
        self.driver.set_window_size(1366, 1098)

    def get_credit(self):
        url = "http://hd.chinatax.gov.cn/fagui/action/InitCredit.do"
        -sharp gettime.sleep(2)
        self.driver.get(url)
        time.sleep(2)
        -sharp 
        -sharp self.driver.save_screenshot("nsrxy.png")
        self.on_click(1)

    def on_click(self, n):
        while n < 3:
            if n == 1:
                self.driver.find_element_by_xpath("""//a[@onclick="changeParam("articleField01","")"]""").click()
            else:
                self.driver.find_element_by_xpath("//*[@title=""]").click()
            time.sleep(2)
            self.driver.save_screenshot("yzm.png")
            self.jietu_img(n)
            self.click_yzm(n)
            n += 1
        return

    def click_yzm(self, n):
        print("the path is {}".format(n))
        element = self.driver.find_element_by_id("verifyCode")
        self.driver.find_element_by_id("verifyCode").clear()
        -sharp im = Image.open("codeImage.png")
        -sharp im.show()
        yzm = input("please input code: ")
        element.send_keys(yzm)
        self.driver.find_element_by_xpath("""//*[@id="layui-layer1"]/div[3]/a[1]""").click()
        time.sleep(4)
        -sharp self.driver.save_screenshot("result{}.png".format(n))
        self.parse_page(n)
        return

    def parse_page(self, n):
        try:
            res_list = []
            data = self.driver.find_elements_by_xpath("//td[@class="sv_hei"]//tr/td")
            if not data:
                self.on_click(n)
            for a in data:
                d = a.text
                res_list.append(d)
            self.save_res(res_list)
        except Exception as e:
            print(e)
        return

    def save_res(self, res_list):
        cont_list = []
        del res_list[-1]
        for i in range(0, 3):
            del res_list[0]
        for i in range(0, len(res_list), 3):
            res_dic = {
                "NSSBH": res_list[i],
                "NSRMC": res_list[i+1],
                "YEAR": res_list[i+2],
            }
            cont_list.append(res_dic)
        print(cont_list)
        -sharp json_str = json.dumps(cont_list)
        -sharp with open("res.text", "a+") as f:
        -sharp     f.write(json_str + "\n\n")
        return

    def jietu_img(self, n):
        -sharp 
        -sharp  x
        -sharp  y
        -sharp  x
        -sharp  y

        png = Image.open("yzm.png")
        if n == 1:
            bbox = (531, 510, 731, 560)
        else:
            bbox = (531, 512, 731, 562)
        region = png.crop(bbox)  -sharp region
        time.sleep(1)
        region.save("codeImage.png")
        return


if __name__ == "__main__":
    s = time.time()
    a = CreditSpider()
    a.get_credit()
    -sharp a.jietu_img_2()
    print(time.time()-s)

error report:

Traceback (most recent call last):
  File "credit_spider.py", line 122, in <module>
    a.get_credit()
  File "credit_spider.py", line 31, in get_credit
    self.on_click(1)
  File "credit_spider.py", line 36, in on_click
    self.driver.find_element_by_xpath("""//a[@onclick="changeParam("articleField01","")"]""").click()
  File "/root/anaconda3/lib/python3.6/site-packages/selenium/webdriver/remote/webelement.py", line 80, in click
    self._execute(Command.CLICK_ELEMENT)
  File "/root/anaconda3/lib/python3.6/site-packages/selenium/webdriver/remote/webelement.py", line 501, in _execute
    return self._parent.execute(command, params)
  File "/root/anaconda3/lib/python3.6/site-packages/selenium/webdriver/remote/webdriver.py", line 308, in execute
    self.error_handler.check_response(response)
  File "/root/anaconda3/lib/python3.6/site-packages/selenium/webdriver/remote/errorhandler.py", line 194, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.ElementNotVisibleException: Message: {"errorMessage":"Element is not currently visible and may not be manipulated","request":{"headers":{"Accept":"application/json","Accept-Encoding":"identity","Connection":"close","Content-Length":"81","Content-Type":"application/json;charset=UTF-8","Host":"127.0.0.1:48854","User-Agent":"Python http auth"},"httpVersion":"1.1","method":"POST","post":"{\"id\": \":wdc:1531296937655\", \"sessionId\": \"9443d970-84e2-11e8-9955-092f7358cfea\"}","url":"/click","urlParsed":{"anchor":"","query":"","file":"click","directory":"/","path":"/click","relative":"/click","port":"","host":"","password":"","user":"","userInfo":"","authority":"","protocol":"","source":"/click","queryKey":{},"chunks":["click"]},"urlOriginal":"/session/9443d970-84e2-11e8-9955-092f7358cfea/element/:wdc:1531296937655/click"}}
Screenshot: available via screen

what is the reason for this? Ask for God"s guidance, thank you!