A minor cleanup for the future.

At the moment we use this in http11.py:

with suppress(AttributeError):
    txresponse._transport._producer.loseConnection()

[Once we drop support for Twisted < 18.4.0](twisted/twisted@3855923

Using latest precompiled binary on Ubuntu 20.04.
Using T::EQUAL in a query results in this error:

Failed to compile the query
not found: function: 'T::EQUAL'

This is a blocking problem for me.

Main examples at Apify SDK webpage, Github repo and CLI templates should demonstrate how to manipulate with DOM and retrieve data from it.

Also add one example of scraping with Apify SDK + jQuery to https://sdk.apify.com/docs/examples/basiccrawler

Feedback from: https://medium.com/better-programming/do-i-need-python-scrapy-to-build-a-web-scraper-7cc7cac2081d

I lost an hour trying to make

Currently, in master, the logs are stored in a non-optional manner.

I think a good improvement for this would be to make the file logging optional, as not everyone has log rotation configured or needs logging (especially ad-hoc users).

Mentioned first here: oltarasenko/crawly#155 (comment)

Some improvements i can think of is:

• optional switch to enabl

We have different mixins in spidermon/contrib/monitors/mixins directory, but no documentation.