Fix PrettyPrinter, output verbosity is now slightly more discreete.

Makefile

@@ -1,4 +1,4 @@
-# Generated by Medikit 0.4.2 on 2017-11-27.
+# Generated by Medikit 0.4.2 on 2017-12-01.
 # All changes will be overriden.
 
 PACKAGE ?= bonobo

Projectfile

@@ -46,7 +46,7 @@ python.add_requirements(
     'fs >=2.0,<2.1',
     'graphviz >=0.8,<0.9',
     'jinja2 >=2.9,<3',
-    'mondrian >=0.5,<0.6',
+    'mondrian >=0.6,<0.7',
     'packaging >=16,<17',
     'psutil >=5.4,<6',
     'python-slugify >=1.2,<1.3',

bonobo/commands/convert.py

@@ -19,6 +19,13 @@ class ConvertCommand(BaseCommand):
             help=
             'Choose the writer factory if it cannot be detected from extension, or if detection is wrong (use - for console pretty print).'
         )
+        parser.add_argument(
+            '--limit',
+            '-l',
+            type=int,
+            help='Adds a Limit() after the reader instance.',
+            default=None,
+        )
         parser.add_argument(
             '--transformation',
             '-t',
@@ -57,24 +64,32 @@ class ConvertCommand(BaseCommand):
             writer=None,
             writer_option=None,
             option=None,
-            transformation=None
+            limit=None,
+            transformation=None,
     ):
         reader_factory = default_registry.get_reader_factory_for(input_filename, format=reader)
-        reader_options = _resolve_options((option or []) + (reader_option or []))
+        reader_kwargs = _resolve_options((option or []) + (reader_option or []))
 
         if output_filename == '-':
             writer_factory = bonobo.PrettyPrinter
+            writer_args = ()
         else:
             writer_factory = default_registry.get_writer_factory_for(output_filename, format=writer)
-        writer_options = _resolve_options((option or []) + (writer_option or []))
+            writer_args = (output_filename, )
+        writer_kwargs = _resolve_options((option or []) + (writer_option or []))
 
-        transformations = _resolve_transformations(transformation)
+        transformations = ()
+
+        if limit:
+            transformations += (bonobo.Limit(limit), )
+
+        transformations += _resolve_transformations(transformation)
 
         graph = bonobo.Graph()
         graph.add_chain(
-            reader_factory(input_filename, **reader_options),
+            reader_factory(input_filename, **reader_kwargs),
             *transformations,
-            writer_factory(output_filename, **writer_options),
+            writer_factory(*writer_args, **writer_kwargs),
         )
 
         return bonobo.run(

bonobo/nodes/basics.py

@@ -119,21 +119,21 @@ class PrettyPrinter(Configurable):
         return ' '.join(((' ' if index else '-'), str(key), ':', str(value).strip()))
 
     def print_console(self, context, *args, **kwargs):
-        print('\u250e' + '\u2500' * (self.max_width - 1))
+        print('\u250c')
         for index, (key, value) in enumerate(itertools.chain(enumerate(args), kwargs.items())):
             if self.filter(index, key, value):
                 print(self.format_console(index, key, value, fields=context.get_input_fields()))
-        print('\u2516' + '\u2500' * (self.max_width - 1))
+        print('\u2514')
 
     def format_console(self, index, key, value, *, fields=None):
         fields = fields or []
         if not isinstance(key, str):
-            if len(fields) >= key and str(key) != str(fields[key]):
+            if len(fields) > key and str(key) != str(fields[key]):
                 key = '{}{}'.format(fields[key], term.lightblack('[{}]'.format(key)))
             else:
                 key = str(index)
 
-        prefix = '\u2503 {} = '.format(key)
+        prefix = '\u2502 {} = '.format(key)
         prefix_length = len(prefix)
 
         def indent(text, prefix):
@@ -141,7 +141,7 @@ class PrettyPrinter(Configurable):
                 yield (prefix if i else '') + line + CLEAR_EOL + '\n'
 
         repr_of_value = ''.join(
-            indent(pprint.pformat(value, width=self.max_width - prefix_length), '\u2503' + ' ' * (len(prefix) - 1))
+            indent(pprint.pformat(value, width=self.max_width - prefix_length), '\u2502' + ' ' * (len(prefix) - 1))
         ).strip()
         return '{}{}{}'.format(prefix, repr_of_value.replace('\n', CLEAR_EOL + '\n'), CLEAR_EOL)
 

requirements-dev.txt

@@ -1,5 +1,6 @@
 -e .[dev]
 alabaster==0.7.10
+attrs==17.3.0
 babel==2.5.1
 certifi==2017.11.5
 chardet==3.0.4
@@ -9,12 +10,13 @@ idna==2.6
 imagesize==0.7.1
 jinja2==2.10
 markupsafe==1.0
+pluggy==0.6.0
 py==1.5.2
 pygments==2.2.0
 pytest-cov==2.5.1
 pytest-sugar==0.9.0
-pytest-timeout==1.2.0
-pytest==3.2.5
+pytest-timeout==1.2.1
+pytest==3.3.0
 pytz==2017.3
 requests==2.18.4
 six==1.11.0

requirements-jupyter.txt

@@ -19,7 +19,7 @@ markupsafe==1.0
 mistune==0.8.1
 nbconvert==5.3.1
 nbformat==4.4.0
-notebook==5.2.1
+notebook==5.2.2
 pandocfilters==1.4.2
 parso==0.1.0
 pexpect==4.3.0
@@ -32,7 +32,7 @@ pyzmq==16.0.3
 qtconsole==4.3.1
 simplegeneric==0.8.1
 six==1.11.0
-terminado==0.8
+terminado==0.8.1
 testpath==0.3.1
 tornado==4.5.2
 traitlets==4.3.2

requirements.txt

@@ -8,7 +8,7 @@ graphviz==0.8.1
 idna==2.6
 jinja2==2.10
 markupsafe==1.0
-mondrian==0.5.1
+mondrian==0.6.0
 packaging==16.8
 pbr==3.1.1
 psutil==5.4.1

setup.py

@@ -60,7 +60,7 @@ setup(
     include_package_data=True,
     install_requires=[
         'colorama (>= 0.3)', 'fs (>= 2.0, < 2.1)', 'graphviz (>= 0.8, < 0.9)', 'jinja2 (>= 2.9, < 3)',
-        'mondrian (>= 0.5, < 0.6)', 'packaging (>= 16, < 17)', 'psutil (>= 5.4, < 6)', 'python-slugify (>= 1.2, < 1.3)',
+        'mondrian (>= 0.6, < 0.7)', 'packaging (>= 16, < 17)', 'psutil (>= 5.4, < 6)', 'python-slugify (>= 1.2, < 1.3)',
         'requests (>= 2, < 3)', 'stevedore (>= 1.27, < 1.28)', 'whistle (>= 1.0, < 1.1)'
     ],
     extras_require={