Add support to pyflakes 2.2.0

Now, it outputs the column number.

CHANGELOG.md

@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ### Fixed
 - Multiline results in pylint were not being captured, e.g. bad-whitespace and
  bad-continuation.
+- Updated pyflakes output parser: now there's a column number.
 
 ### Changed
 - Pipfile has Python 3.8 now that it is available in Ubuntu LTS 20.04. However,

tests/acceptance.py

@@ -97,11 +97,15 @@ def test_pydocstyle(self):
 
  def test_pyflakes(self):
  """Check Pyflakes output."""
- expected = (
- "1:None|'os' imported but unused",
- "2:None|'abc' imported but unused"
- )
- self._assert_results(expected, 'pyflakes')
+ expected_any = (
+ "1:1|'os' imported but unused", # pyflakes 2.2.0
+ "1:None|'os' imported but unused") # pyflakes 2.1.1
+ self._assert_any_result(expected_any, 'pyflakes')
+
+ expected_any = (
+ "2:1|'abc' imported but unused",
+ "2:None|'abc' imported but unused")
+ self._assert_any_result(expected_any, 'pyflakes')
 
  def test_pylint(self):
  """Check Pylint output."""

yala/linters.py

@@ -103,7 +103,8 @@ def parse(self, lines):
  pattern = re.compile(r'''
  ^(?P<path>.+?)
  :(?P<line_nr>\d+?)
- :\ (?P<msg>.+)$''', re.VERBOSE)
+ :(?P<col>\d+?)?
+ \ (?P<msg>.+)$''', re.VERBOSE)
  return self._parse_by_pattern(lines, pattern)