Print parse errors to command line.

Author: Nurdok

src/pydocstyle/checker.py

@@ -11,7 +11,8 @@
 from . import violations
 from .config import IllegalConfiguration
 from .parser import (Package, Module, Class, NestedClass, Definition, AllError,
-                     Method, Function, NestedFunction, Parser, StringIO)
+                     Method, Function, NestedFunction, Parser, StringIO,
+                     ParseError)
 from .utils import log, is_blank, pairwise
 from .wordlists import IMPERATIVE_VERBS, IMPERATIVE_BLACKLIST, stem
 
@@ -695,8 +696,9 @@ def check(filenames, select=None, ignore=None, ignore_decorators=None):
                 code = getattr(error, 'code', None)
                 if code in checked_codes:
                     yield error
-        except (EnvironmentError, AllError):
-            yield sys.exc_info()[1]
+        except (EnvironmentError, AllError, ParseError) as error:
+            log.warning('Error in file %s: %s', filename, error)
+            yield error
         except tk.TokenError:
             yield SyntaxError('invalid syntax in file %s' % filename)
 

src/pydocstyle/cli.py

@@ -49,7 +49,8 @@ def run_pydocstyle():
 
     count = 0
     for error in errors:
-        sys.stdout.write('%s\n' % error)
+        if hasattr(error, 'code'):
+            sys.stdout.write('%s\n' % error)
         count += 1
     if count == 0:
         exit_code = ReturnCode.no_violations_found

src/pydocstyle/parser.py

@@ -33,7 +33,8 @@ def next(obj, default=nothing):
 
 
 class ParseError(Exception):
-    pass
+    def __str__(self):
+        return "cannot parse file"
 
 
 def humanize(string):

src/tests/test_integration.py

@@ -964,3 +964,15 @@ def foo():
     _, _, code = env.invoke()
 
     assert code == 0
+
+
+def test_syntax_error_multiple_files(env):
+    """Test that a syntax error in a file doesn't prevent further checking."""
+    for filename in ('first.py', 'second.py'):
+        with env.open(filename, 'wt') as fobj:
+            fobj.write("[")
+
+    out, err, code = env.invoke(args="-v")
+    assert code == 1
+    assert 'first.py: cannot parse file' in err
+    assert 'second.py: cannot parse file' in err