On Monday, January 2, 2017 at 2:35:22 PM UTC+5:30, Aritra Bhattacharjee wrote: > I am new to python programming. I wrote a code to search for the product > names on a page of snapdeal.com .
[RM]: Welcome and have fun. > for i in range(1,21): > print(product_name[i]) > > > Output: > Traceback (most recent call last): > Motorola Pulse 2 Over Ear Wired Headphones With Mic (Black) > Bose SoundLink On-Ear Bluetooth Headphones - Black & Blue > Sony MDR-ZX110A Headphones Without Mic (White) > Philips SBCHL140/98 Over Ear Headphone Without Mic > File "C:/Users/Aritra Bhattacharjee/PycharmProjects/PythonWebModules/Web > Scraper.py", line 17, in <module> > Intex Desire BT Over Ear Wired With Mic Headphone Black > print(product_name[i]) > JBL T450 On Ear Wired Headphones With Mic Black > KeyError: 20 . . . . . . . . > The Output shows some error that I could not understand why...Thanks in > Advance [RM]: You should read tracebacks stack from the bottom. Initially there will be hiccups but over a period of time you will learn. >From your code snippet: for loop is supplied with a range of 1 to 21 and while >the key value (variable, i) is 20, print fails there. In the previous loop, >where you are using methods in BeautifulSoup, are you sure that many items are >added to the list, product_name. If I were you, in the loop where the list is expanded by adding the product title names, will rename the variable, i, as 'product_counter'. And, in the last for loop, this counter can be used in the rangem like, (0, product_counter). All the best, /Ram -- https://mail.python.org/mailman/listinfo/python-list
