diff --git a/plugin/syntastic.vim b/plugin/syntastic.vim
index fb788a3b..20bf7ac3 100644
--- a/plugin/syntastic.vim
+++ b/plugin/syntastic.vim
@@ -214,8 +214,8 @@ function! s:CacheErrors(...)
 
         if !empty(names)
             if len(syntastic#util#unique(map(copy(names), 'v:val[1]'))) == 1
-                let name = join(map(names, 'v:val[0]'), ', ')
                 let type = names[0][1]
+                let name = join(map(names, 'v:val[0]'), ', ')
                 call newLoclist.setName( name . ' ('. type . ')' )
             else
                 " checkers from mixed types
@@ -388,7 +388,7 @@ function! SyntasticMake(options)
 
     let $LC_MESSAGES = 'C'
     let $LC_ALL = ''
-    let err_lines = system(a:options['makeprg'])
+    let err_lines = split(system(a:options['makeprg']), "\n", 1)
     let $LC_ALL = old_lc_all
     let $LC_MESSAGES = old_lc_messages
 
diff --git a/plugin/syntastic/loclist.vim b/plugin/syntastic/loclist.vim
index 104470dc..f1f34eb6 100644
--- a/plugin/syntastic/loclist.vim
+++ b/plugin/syntastic/loclist.vim
@@ -157,11 +157,17 @@ function! g:SyntasticLoclist.show()
         endif
 
         " try to find the loclist window and set w:quickfix_title
+        let errors = getloclist(0)
         for buf in tabpagebuflist()
             if buflisted(buf) && bufloaded(buf) && getbufvar(buf, '&buftype') ==# 'quickfix'
                 let win = bufwinnr(buf)
                 let title = getwinvar(win, 'quickfix_title')
-                if title ==# ':setloclist()' || strpart(title, 0, 16) ==# ':SyntasticCheck '
+
+                " TODO: try to make sure we actually own this window; sadly,
+                " errors == getloclist(0) is the only somewhat safe way to
+                " achieve that
+                if strpart(title, 0, 16) ==# ':SyntasticCheck ' ||
+                            \ ( (title == '' || title ==# ':setloclist()') && errors == getloclist(0) )
                     call setwinvar(win, 'quickfix_title', ':SyntasticCheck ' . self._name)
                 endif
             endif
diff --git a/syntax_checkers/puppet/puppetlint.vim b/syntax_checkers/puppet/puppetlint.vim
index c65e601b..14afd8c6 100644
--- a/syntax_checkers/puppet/puppetlint.vim
+++ b/syntax_checkers/puppet/puppetlint.vim
@@ -31,7 +31,7 @@ endfunction
 function! SyntaxCheckers_puppet_puppetlint_GetLocList()
     let makeprg = syntastic#makeprg#build({
         \ 'exe': 'puppet-lint',
-        \ 'post_args': '--log-format "\%{KIND} [\%{check}] \%{message} at \%{fullpath}:\%{linenumber}"',
+        \ 'post_args': '--log-format "%{KIND} [%{check}] %{message} at %{fullpath}:%{linenumber}"',
         \ 'filetype': 'puppet',
         \ 'subchecker': 'puppetlint' })
 
diff --git a/syntax_checkers/python/pep257.vim b/syntax_checkers/python/pep257.vim
new file mode 100644
index 00000000..9d2b64d9
--- /dev/null
+++ b/syntax_checkers/python/pep257.vim
@@ -0,0 +1,50 @@
+"============================================================================
+"File:        pep257.vim
+"Description: Docstring style checking plugin for syntastic.vim
+"============================================================================
+"
+" For details about pep257 see: https://github.com/GreenSteam/pep257
+
+if exists("g:loaded_syntastic_python_pep257_checker")
+    finish
+endif
+let g:loaded_syntastic_python_pep257_checker = 1
+
+function! SyntaxCheckers_python_pep257_IsAvailable()
+    return executable('pep257')
+endfunction
+
+" sanity: kill empty lines here rather than munging errorformat
+function! SyntaxCheckers_python_pep257_Preprocess(errors)
+    return filter(copy(a:errors), 'v:val != ""')
+endfunction
+
+function! SyntaxCheckers_python_pep257_GetLocList()
+    let makeprg = syntastic#makeprg#build({
+        \ 'exe': 'pep257',
+        \ 'filetype': 'python',
+        \ 'subchecker': 'pep257' })
+
+    let errorformat =
+        \ '%E%f:%l:%c%\%.%\%.%\d%\+:%\d%\+: %m,' .
+        \ '%E%f:%l:%c: %m,' .
+        \ '%+C    %m'
+
+    let loclist = SyntasticMake({
+        \ 'makeprg': makeprg,
+        \ 'errorformat': errorformat,
+        \ 'subtype': 'Style',
+        \ 'preprocess': 'SyntaxCheckers_python_pep257_Preprocess',
+        \ 'postprocess': ['compressWhitespace'] })
+
+    " pep257 outputs byte offsets rather than column numbers
+    for n in range(len(loclist))
+        let loclist[n]['col'] = get(loclist[n], 'col', 0) + 1
+    endfor
+
+    return loclist
+endfunction
+
+call g:SyntasticRegistry.CreateAndRegisterChecker({
+    \ 'filetype': 'python',
+    \ 'name': 'pep257'})
diff --git a/syntax_checkers/typescript/tsc.vim b/syntax_checkers/typescript/tsc.vim
index 78469822..768dc4e0 100644
--- a/syntax_checkers/typescript/tsc.vim
+++ b/syntax_checkers/typescript/tsc.vim
@@ -1,6 +1,6 @@
 "============================================================================
 "File:        typescript.vim
-"Description: TypeScript syntax checker. For TypeScript v0.8.0
+"Description: TypeScript syntax checker
 "Maintainer:  Bill Casarin <bill@casarin.ca>
 "============================================================================
 
@@ -17,15 +17,22 @@ endfunction
 function! SyntaxCheckers_typescript_tsc_GetLocList()
     let makeprg = syntastic#makeprg#build({
         \ 'exe': 'tsc',
+        \ 'args': '--module commonjs',
         \ 'post_args': '--out ' . syntastic#util#DevNull(),
         \ 'filetype': 'typescript',
         \ 'subchecker': 'tsc' })
 
-    let errorformat = '%f %#(%l\,%c): %m'
+    let errorformat =
+        \ '%E%f %#(%l\,%c): error %m,' .
+        \ '%E%f %#(%l\,%c): %m,' .
+        \ '%Eerror %m,' .
+        \ '%C%\s%\+%m'
 
     return SyntasticMake({
         \ 'makeprg': makeprg,
-        \ 'errorformat': errorformat })
+        \ 'errorformat': errorformat,
+        \ 'defaults': {'bufnr': bufnr("")},
+        \ 'postprocess': ['sort'] })
 endfunction
 
 call g:SyntasticRegistry.CreateAndRegisterChecker({