[MRG+1] Update _monkeypatches.py (#3907)
[MRG+1] Update _monkeypatches.py (#3907)

* Update _monkeypatches.py

The workarounds are not required assuming the bugs regarding urlparse are absent in  Python versions >2.7. We already exit the program if Python  version<2.7 in the __init__.py(line 17).The monkeypatches are deployed after this check at line 27  in  the __init__.py .

* Update _monkeypatches.py

Added the second workaround.

* Update _monkeypatches.py

* Update _monkeypatches.py

starrify/scrapy,elacuesta/scrapy,dangra/scrapy,wujuguang/scrapy,elacuesta/scrapy,scrapy/scrapy,pablohoffman/scrapy,eLRuLL/scrapy,wujuguang/scrapy,eLRuLL/scrapy,scrapy/scrapy,pawelmhm/scrapy,starrify/scrapy,scrapy/scrapy,pawelmhm/scrapy,elacuesta/scrapy,dangra/scrapy,finfish/scrapy,pawelmhm/scrapy,dangra/scrapy,finfish/scrapy,starrify/scrapy,finfish/scrapy,wujuguang/scrapy,eLRuLL/scrapy,pablohoffman/scrapy,pablohoffman/scrapy