が、私はこのエラーを理解していない：TypeError例外：「フロート」オブジェクトは、整数

Question

として解釈することができない私はhereからこのコードを実行しようとしている：

import re, sys, time, string 
from bs4 import BeautifulSoup 
import urllib2 
import logging 

class FetchAllSybols(object): 

    def __init__(self): 
     # URL 
     # default m (market) - IN, t (type) - S (stock) 
     self.sym_start_url = "https://in.finance.yahoo.com/lookup/stocks?t=S&m=IN" 
     self.sym_page_url = '&b=0'#page 
     self.sym_alphanum_search_url = '&s=a' #search alphabet a 
     self.sym_full_url = '' 
     self.alphabet_str_to_search = string.ascii_lowercase # full alphabet 
     self.sym_info = {} 
     self.header = "SymbolId,Full Name, Type, Exchange, URL\n" 

    def set_alphabet_in_url(self, alphabet): 
     """ 
     Set the alphabet portion of the url by passing the alphabet. 
     :param alphbet (str): can be alphabet. 
     """ 
     self.sym_alphanum_search_url = '&s=' + str(alphabet) 

    def set_pagenumber_in_url(self, pageno): 
     """ 
     Set the page portion of the url by passing the pageno. 
     :param pageno (str): page number. 
     """ 
     self.sym_page_url = '&b=' + str(pageno) 


    def gen_next_url(self): 
     """ 
     Creates the full url necessary for sym scan by joining the search parameter and page no. 
     """ 
     self.sym_full_url = self.sym_start_url + self.sym_alphanum_search_url + self.sym_page_url  

    def get_data_from_next_page(self): 
     self.gen_next_url() 
     print ("Fetching data from URL", self.sym_full_url) 
     req = urllib2.Request(self.sym_full_url, headers={ 'User-Agent': 'Mozilla/5.0' }) 
     html = None 
     counter = 0 
     while counter < 10: 
      try: 
       html = urllib2.urlopen(req) 
      except urllib2.HTTPError, error: 
       logging.error(error.read()) 
       logging.info("Will try 10 times with 2 seconds sleep") 
       time.sleep(2) 
       counter += 1 
      else: 
       break 

     soup = BeautifulSoup(html, "html") 
     return soup 

    def get_all_valid_symbols(self): 
     """ 
     Scan all the symbol for one page. The parsing are split into odd and even rows. 
     """ 
     soup = self.get_data_from_next_page() 
     table = soup.find_all("div", class_="yui-content") 
     table_rows = table[0].find_all('tr') 
     for table_row in table_rows: 
      if table_row.find('td'): 
       if table_row.contents[2].text != 'NaN': 
        self.sym_info[table_row.contents[0].text]=[table_row.contents[1].text, 
                   table_row.contents[3].text, 
                   table_row.contents[4].text, 
                   table_row.a["href"]] 

    def get_total_page_to_scan_for_alphabet(self, alphabet): 
     """ 
     Get the total search results based on each search to determine the number of page to scan. 
     :param alphabet (int): The total number of page to scan 
     """ 
     self.sym_start_url = "https://in.finance.yahoo.com/lookup/stocks?t=S&m=IN&r=" 
     self.sym_page_url = '&b=0'#page 
     self.sym_alphanum_search_url = '&s='+alphabet 

     soup = self.get_data_from_next_page() 
     total_search_str = (str(soup.find_all("div", id="pagination"))) 

     #Get the number of page 
     total_search_qty = re.search('of ([1-9]*\,*[0-9]*).*',total_search_str).group(1) 
     total_search_qty = int(total_search_qty.replace(',','', total_search_qty.count(','))) 
     final_search_page_count = total_search_qty/20 #20 seach per page. 

     return final_search_page_count 


    def get_total_sym_for_each_search(self, alphabet): 
     """ 
     Scan all the page indicate by the search item. 
     The first time search or the first page will get the total number of search. 
     Dividing it by 20 results per page will give the number of page to search. 
     :param alphabet(str) 
     """ 
     # Get the first page info first 
     self.set_pagenumber_in_url(0) 
     total_page_to_scan = self.get_total_page_to_scan_for_alphabet(alphabet) 
     logging.info('Total number of pages to scan: [%d]'% total_page_to_scan) 

     # Scan the rest of the page. 
     # may need to get time to rest 
     for page_no in range(0,total_page_to_scan+1,1): 
      self.set_pagenumber_in_url(page_no*20) 
      self.gen_next_url() 
      logging.info('Scanning page number: [%d] url: [%s] ' % (page_no, self.sym_full_url))   
      self.get_all_valid_symbols() 

    def serach_for_each_alphabet(self): 
     """ 
     Sweep through all the alphabets to get the full list of shares. 
     """ 
     for alphabet in self.alphabet_str_to_search: 
      logging.info('Searching for : [%s]' % alphabet) 
      self.set_alphabet_in_url(alphabet) 
      self.get_total_sym_for_each_search(alphabet) 

    def dump_into_file(self): 
     ''' 
     Store all symbols into a csv file. 
     ''' 
     f = open('Symbol_Info.csv', 'w') 
     f.write(self.header) 

     for key in sorted(self.sym_info): 
      values = self.sym_info[key] 
      sym = key+',' 
      for value in values: 
       sym += str(value) + ',' 
      sym += '\n' 
      f.write(sym) 
     f.close() 

if __name__ == "__main__": 
    root = logging.getLogger() 
    root.setLevel(logging.INFO) 

    ch = logging.StreamHandler(sys.stdout) 
    ch.setLevel(logging.DEBUG) 

    formatter = logging.Formatter('%(asctime)s - %(levelname)s - %(message)s') 
    ch.setFormatter(formatter) 
    root.addHandler(ch) 

    fileHandler = logging.FileHandler("dump.log") 
    fileHandler.setFormatter(formatter) 
    root.addHandler(fileHandler) 

    f = FetchAllSybols() 
    f.alphanum_str_to_search = 'abcdefghijklmnopqrstuvwxyz' 
    f.serach_for_each_alphabet() 
    f.dump_into_file() 

私はこのエラーを取得してきました。私のpythonを知らないが、問題は、上記の行に最も近い整数に切り上げる必要があることのようです

Traceback (most recent call last): 
    File "/Users/xmizer/PycharmProjects/StockProject/venv/hello_world.py", line 157, in <module> 
    f.serach_for_each_alphabet() 
    File "/Users/xmizer/PycharmProjects/StockProject/venv/hello_world.py", line 122, in serach_for_each_alphabet 
    self.get_total_sym_for_each_search(alphabet) 
    File "/Users/xmizer/PycharmProjects/StockProject/venv/hello_world.py", line 109, in get_total_sym_for_each_search 
    for page_no in range(0,total_page_to_scan+1,1): 
TypeError: 'float' object cannot be interpreted as an integer 

Answer 1

Python 2のために書かれたスクリプトをPython 3に使用しています。

パイソン2：Python 2で除算演算子は3ではfloatをもたらす、整数を与える

>>> 20/10 
2 
>>> range(0, 20/10) 
[0, 1] 

一方、Pythonの3：

>>> 20/10 
2.0 
>>> range(0, 20/10) 
Traceback (most recent call last): 
    File "<stdin>", line 1, in <module> 
TypeError: 'float' object cannot be interpreted as an integer 

いずれかスクリプトを実行しますPython 2を入力するか、オペレータを次の場所に変更してください。

結果として intを生成

final_search_page_count = total_search_qty // 20 

：へ

final_search_page_count = total_search_qty/20 

。

Answer 2

final_search_page_count = total_search_qty/20

：私はいくつかのグーグルを行なったし、まだそれが何を意味するのかのアイデアを持っていません。

これは、同じ問題を持つ小さい場合である：total_page_to_scanフロート値である

range(1, 3.33, 1)

Answer 3

range()関数は、整数を期待しています。あなたのget_total_page_to_scan_for_alphabet()にint型を返す方法を見つける必要があります。

def get_total_page_to_scan_for_alphabet(self, alphabet): 
    ... 
    return int(final_search_page_count) 

また、あなたはserach_for_each_alphabet()の小さなタイプミスをしました。

Answer 4

Jimが述べたように、整数結果を保証するには、次のようにします。

final_search_page_count = total_search_qty // 20 

また、あなたはrange()は、すべての整数（開始、終了、増分）されている3つの引数を取りますので、これは重要です

final_search_page_count = int(total_search_qty/20) 

を使用することができます。