Scrapy Crawl ValueError - python-3.x

Question

I am new to python and to scrapy. I followed a tutorial to have scrapy crawl quotes.toscrape.com.
I entered in the code exactly how it is in the tutorial, but I keep getting a ValueError: invalid hostname: when I run scrapy crawl quotes. I am doing this in Pycharm on a Mac computer.
I tried doing single and double quotes around the URL in start_urls = []section but that did not fix the error.
This is what the code looks like:
import scrapy
class QuoteSpider(scrapy.Spider):
name = 'quotes'
start_urls = [
'http: // quotes.toscrape.com /'
]
def parse(self, response):
title = response.css('title').extract()
yield {'titletext':title}
It is supposed to be scraping the site for the title.
This is what the error looks like:
2019-11-08 12:52:42 [scrapy.core.engine] INFO: Spider opened
2019-11-08 12:52:42 [scrapy.extensions.logstats] INFO: Crawled 0 pages (at 0 pages/min), scraped 0 items (at 0 items/min)
2019-11-08 12:52:42 [scrapy.extensions.telnet] INFO: Telnet console listening on 127.0.0.1:6023
2019-11-08 12:52:42 [scrapy.downloadermiddlewares.robotstxt] ERROR: Error downloading <GET http:///robots.txt>: invalid hostname:
Traceback (most recent call last):
File "/Users/newuser/PycharmProjects/ScrapyTutorial/venv/lib/python2.7/site-packages/scrapy/core/downloader/middleware.py", line 44, in process_request
defer.returnValue((yield download_func(request=request, spider=spider)))
ValueError: invalid hostname:
2019-11-08 12:52:42 [scrapy.core.scraper] ERROR: Error downloading <GET http:///%20//%20quotes.toscrape.com%20/>
Traceback (most recent call last):
File "/Users/newuser/PycharmProjects/ScrapyTutorial/venv/lib/python2.7/site-packages/scrapy/core/downloader/middleware.py", line 44, in process_request
defer.returnValue((yield download_func(request=request, spider=spider)))
ValueError: invalid hostname:
2019-11-08 12:52:42 [scrapy.core.engine] INFO: Closing spider (finished)

Answer 1

Don't use spaces for URLs!
start_urls = [
'http://quotes.toscrape.com/'
]