2.0.1

Backwards incompatible changes:

• Python 2 is no longer supported; Python 3.6+ is required now (#168, #175).
• w3lib.url.safe_url_string and w3lib.url.canonicalize_url
  no longer convert "%23" to "#" when it appears in the URL path. This is a bug
  fix. It's listed as a backward-incomatible change because in some cases the
  output of w3lib.url.canonicalize_url is going to change, and so, if
  this output is used to generate URL fingerprints, new fingerprints might be
  incompatible with those created with the previous w3lib versions
  (#141).

Deprecation removals (#169):

• The w3lib.form module is removed.
• The w3lib.html.remove_entities function is removed.
• The w3lib.url.urljoin_rfc function is removed.

The following functions are deprecated, and will be removed in future releases
(#170):

• w3lib.util.str_to_unicode
• w3lib.util.unicode_to_str
• w3lib.util.to_native_str

Other improvements and bug fixes:

• Type annotations are added (#172, #184).
• Added support for Python 3.9 and 3.10 (#168, #176).
• Fixed w3lib.html.get_meta_refresh for <meta> tags where
  http-equiv is written after content (#179).
• Fixed w3lib.url.safe_url_string for IDNA domains with ports (#174).
• w3lib.url.url_query_cleaner no longer adds an unneeded # when
  keep_fragments=True is passed, and the URL doesn't have a fragment
  (#159).
• Removed a workaround for an ancient pathname2url bug (#142)
• CI is migrated to GitHub Actions (#166, #177); other CI improvements (#160,
  #182).
• The code is formatted using black (#173).