The problem of python regularization

clipboard.png 

-sharp! /usr/bin/env python
-sharp -*- coding:utf-8 -*-
from  selenium  import webdriver
from lxml import etree
import xml.dom
from config import *
import xlrd
import re
class qichacha:
     def __init__(self):
         option=webdriver.ChromeOptions()
         option.add_argument("--start-maximized")
         option.add_argument("--headless")
         self.driver=webdriver.Chrome(chrome_options=option)
     def read_data(self):
         try:
             with open("data.xls","r")as f:

                print(f.read())
                str=f.read()
                company_name=re.findall(r"""<ss:Cell><.*?>(.*?)</ss:Data></ss:Cell>""",str)
                print ("asdasdasd")
                print (company_name)
                -sharp for name in company_name:
                -sharp     if name=="":
                -sharp         pass
                -sharp     else :
                -sharp        print (name)






         finally:
             if f:
                 f.close()
         pass

if  __name__=="__main__":

    qichacha().read_data()

the print here is empty. Why is that? I think there is nothing wrong with my rules, thank you!

Python
Mar.17,2021

if you guess correctly, the problem with these two sentences of code 

print(f.read())    -sharp 
str=f.read()       -sharp  str

try this instead: 

str=f.read() 
print(str)

Previous: What causes the error of TCP retransmission packet?

Next: Mac access docker-machine ip error

css mysql arrays josn react html typescript webpack npm sass R objective-c .net sql-server jquery python-3.x angularjs django angular excel regex iphone ajax linux xml pandas vba spring database wordpress string wpf xcode windows bash postgresql oracle multithreading eclipse list firebase algorithm macos forms image scala visual-studio azure bootstrap spring-boot react-native python-2.7 docker performance function winforms matlab powershell apache dataframe api sqlite numpy rest shell selenium flutter dart maven loops qt swing android-studio csv express file class tensorflow sorting codeigniter perl
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b3a839-2c237.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3a839-2c237.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?