#476 Make F401 a warning and E112 a syntax error

ale_linters/python/flake8.vim

@@ -105,11 +105,16 @@ function! ale_linters#python#flake8#Handle(buffer, lines) abort
         \   'type': 'W',
         \}
 
-        if l:code[:0] is# 'F' || l:code is# 'E999'
-            let l:item.type = 'E'
+        if l:code[:0] is# 'F'
+            if l:code isnot# 'F401'
+                let l:item.type = 'E'
+            endif
         elseif l:code[:0] is# 'E'
             let l:item.type = 'E'
-            let l:item.sub_type = 'style'
+
+            if l:code isnot# 'E999' && l:code isnot# 'E112'
+                let l:item.sub_type = 'style'
+            endif
         elseif l:code[:0] is# 'W'
             let l:item.sub_type = 'style'
         endif

ale_linters/python/pycodestyle.vim

@@ -44,8 +44,8 @@ function! ale_linters#python#pycodestyle#Handle(buffer, lines) abort
         \   'code': l:match[4],
         \}
 
-        " E999 is not a style error, it's a syntax error.
-        if l:match[4] is# 'E999'
+        " E999 and E112 are syntax errors.
+        if l:match[4] is# 'E999' || l:match[4] is# 'E112'
             unlet l:item.sub_type
         endif
 

test/handler/test_flake8_handler.vader

@@ -214,3 +214,33 @@ Execute(Disabling trailing blank line warnings should work):
   \ ale_linters#python#flake8#Handle(bufnr(''), [
   \   'foo.py:6:1: W391 blank line at end of file',
   \ ])
+
+Execute(F401 should be a warning):
+  AssertEqual
+  \ [
+  \   {
+  \     'lnum': 6,
+  \     'col': 1,
+  \     'code': 'F401',
+  \     'type': 'W',
+  \     'text': 'module imported but unused',
+  \   },
+  \ ],
+  \ ale_linters#python#flake8#Handle(bufnr(''), [
+  \   'foo.py:6:1: F401 module imported but unused',
+  \ ])
+
+Execute(E112 should be a syntax error):
+  AssertEqual
+  \ [
+  \   {
+  \     'lnum': 6,
+  \     'col': 1,
+  \     'code': 'E112',
+  \     'type': 'E',
+  \     'text': 'expected an indented block',
+  \   },
+  \ ],
+  \ ale_linters#python#flake8#Handle(bufnr(''), [
+  \   'foo.py:6:1: E112 expected an indented block',
+  \ ])

test/handler/test_pycodestyle_handler.vader

@@ -137,3 +137,18 @@ Execute(Disabling trailing blank line warnings should work):
   \ ale_linters#python#pycodestyle#Handle(bufnr(''), [
   \   'foo.py:6:1: W391 blank line at end of file',
   \ ])
+
+Execute(E112 should be a syntax error):
+  AssertEqual
+  \ [
+  \   {
+  \     'lnum': 6,
+  \     'col': 1,
+  \     'code': 'E112',
+  \     'type': 'E',
+  \     'text': 'expected an indented block',
+  \   },
+  \ ],
+  \ ale_linters#python#pycodestyle#Handle(bufnr(''), [
+  \   'foo.py:6:1: E112 expected an indented block',
+  \ ])