because `cgi.parse_qsl` is deprecated, according to
https://docs.python.org/2/library/cgi.html#cgi.parse_qsl

by wrapping `map` with `list`.

* wsgi.input must be a binary file, not a text file
* Fix fixture.TestApp.__str__() on Python 3: decode body from UTF-8
  (with xmlcharrefreplace).
* Fix fixture.TestResponse.goto() on Python 3: regex must use bytes,
  not Unicode.
* Fix TestApp._check_status() on Python 3

  - Decode body from UTF-8 (with xmlcharrefreplace) to format the error message.
  - Fix TestApp.encode_multipart() on Python 3: HTTP body must be bytes: encode
    lines to utf8 and use byte string literals.
  - Fix TestApp.post() on Python 3: default params must be bytes
  - Fix TestResponse.__repr__() on Python 3
  - Fix TestApp on Python 3: encode params values to UTF-8
  - Port TestApp._gen_request() to Python 3

* Replace (str, unicode) with (six.binary_type, six.text_type)
* Replace basestring with (six.binary_type, six.text_type)

Use also "from __future__ import print_function".

Unpack explicitly in the body of the function

Use "try/except ImportError" to try Python 2 and Python 3 names.