pyspark blaze-AttributeError: 'DiGraph' object has no attribute 'edge' - pyspark

Question

when I blaze a pandas.dataframe,it can output the columns normally! When I run "traffic.head()", it can run normally! However,when I run "traffic.Stop_day" ,it indicated the AttributeError just like below:
import odo
traffic=bl.Data(df)
print(traffic.fields)
['Agency', 'SubAgency', 'Description', 'Location', 'Latitude', 'Longitude', 'Accident', 'Belts', 'Personal Injury', 'Property Damage', 'Fatal', 'Commercial License', 'HAZMAT', 'Commercial Vehicle', 'Alcohol', 'Work Zone', 'State', 'VehicleType', 'Year', 'Make', 'Model', 'Color', 'Violation Type', 'Charge', 'Article', 'Contributed To Accident', 'Race', 'Gender', 'Driver City', 'Driver State', 'DL State', 'Arrest Type', 'Geolocation', 'Stop_month', 'Stop_day', 'Stop_year', 'Stop_hour', 'Stop_min', 'Stop_sec']
traffic.Stop_day
AttributeError Traceback (most recent call
last)
e:\software\python36\lib\site-packages\IPython\core\formatters.py in
call(self, obj)
700 type_pprinters=self.type_printers,
701 deferred_pprinters=self.deferred_printers)
--> 702 printer.pretty(obj)
703 printer.flush()
704 return stream.getvalue()
e:\software\python36\lib\site-packages\IPython\lib\pretty.py in
pretty(self, obj)
398 if cls is not object \
399 and callable(cls.dict.get('repr')):
--> 400 return _repr_pprint(obj, self, cycle)
401
402 return _default_pprint(obj, self, cycle)
e:\software\python36\lib\site-packages\IPython\lib\pretty.py in
_repr_pprint(obj, p, cycle)
693 """A pprint that just redirects to the normal repr function."""
694 # Find newlines and replace them with p.break_()
--> 695 output = repr(obj)
696 for idx,output_line in enumerate(output.splitlines()):
697 if idx:
e:\software\python36\lib\site-packages\blaze\interactive.py in
_choose_repr(self)
440 else:
441 warnings.warn(_warning_msg, DeprecationWarning, stacklevel=2)
--> 442 return expr_repr(self)
443
444
e:\software\python36\lib\site-packages\blaze\interactive.py in
expr_repr(expr, n)
358 isscalar(expr.dshape.measure) or
359 isinstance(expr.dshape.measure, Map))):
--> 360 return repr_tables(expr, 10)
361
362 # Smallish arrays
e:\software\python36\lib\site-packages\blaze\interactive.py in
repr_tables(expr, n)
240
241 def repr_tables(expr, n=10):
--> 242 result = concrete_head(expr, n).rename(columns={None: ''})
243
244 if isinstance(result, (DataFrame, Series)):
e:\software\python36\lib\site-packages\blaze\interactive.py in
concrete_head(expr, n)
220 return odo(head, DataFrame)
221 else:
--> 222 df = odo(head, DataFrame)
223 df.columns = [expr._name]
224 return df
e:\software\python36\lib\site-packages\odo\odo.py in odo(source,
target, **kwargs)
89 odo.append.append - Add things onto existing things
90 """
---> 91 return into(target, source, **kwargs)
e:\software\python36\lib\site-packages\multipledispatch\dispatcher.py
in call(self, *args, **kwargs)
276 self._cache[types] = func
277 try:
--> 278 return func(*args, **kwargs)
279
280 except MDNotImplementedError:
e:\software\python36\lib\site-packages\blaze\interactive.py in into(a,
b, **kwargs)
404 result = compute(b, return_type='native', **kwargs)
405 kwargs['dshape'] = b.dshape
--> 406 return into(a, result, **kwargs)
407
408
e:\software\python36\lib\site-packages\multipledispatch\dispatcher.py
in call(self, *args, **kwargs)
276 self._cache[types] = func
277 try:
--> 278 return func(*args, **kwargs)
279
280 except MDNotImplementedError:
e:\software\python36\lib\site-packages\odo\into.py in wrapped(*args,
**kwargs)
41 raise TypeError('dshape argument is not an instance of DataShape')
42 kwargs['dshape'] = dshape
---> 43 return f(*args, **kwargs)
44 return wrapped
45
e:\software\python36\lib\site-packages\odo\into.py in into_type(a, b,
dshape, **kwargs)
51 if dshape is None:
52 dshape = discover(b)
---> 53 return convert(a, b, dshape=dshape, **kwargs)
54
55
e:\software\python36\lib\site-packages\odo\core.py in call(self,
*args, **kwargs)
42
43 def call(self, *args, **kwargs):
---> 44 return _transform(self.graph, *args, **kwargs)
45
46
e:\software\python36\lib\site-packages\odo\core.py in
_transform(graph, target, source, excluded_edges, ooc_types, **kwargs)
55 pth = path(graph, type(source), target,
56 excluded_edges=excluded_edges,
---> 57 ooc_types=ooc_types)
58 try:
59 for (A, B, f) in pth:
e:\software\python36\lib\site-packages\odo\core.py in path(graph,
source, target, excluded_edges, ooc_types)
92 pth = nx.shortest_path(g, source=source, target=target, weight='cost')
93 result = [(src, tgt, graph.edge[src][tgt]['func'])
---> 94 for src, tgt in zip(pth, pth[1:])]
95 return result
96
e:\software\python36\lib\site-packages\odo\core.py in (.0)
92 pth = nx.shortest_path(g, source=source, target=target, weight='cost')
93 result = [(src, tgt, graph.edge[src][tgt]['func'])
---> 94 for src, tgt in zip(pth, pth[1:])]
95 return result
96
AttributeError: 'DiGraph' object has no attribute 'edge'
--------------------------------------------------------------------------- AttributeError Traceback (most recent call
last)
e:\software\python36\lib\site-packages\IPython\core\formatters.py in
call(self, obj)
343 method = get_real_method(obj, self.print_method)
344 if method is not None:
--> 345 return method()
346 return None
347 else:
e:\software\python36\lib\site-packages\blaze\interactive.py in
_warning_repr_html(self)
448 else:
449 warnings.warn(_warning_msg, DeprecationWarning, stacklevel=2)
--> 450 return to_html(self)
451
452
e:\software\python36\lib\site-packages\multipledispatch\dispatcher.py
in call(self, *args, **kwargs)
276 self._cache[types] = func
277 try:
--> 278 return func(*args, **kwargs)
279
280 except MDNotImplementedError:
e:\software\python36\lib\site-packages\blaze\interactive.py in
to_html(expr)
387 if not expr._resources() or ndim(expr) != 1:
388 return to_html(expr_repr(expr))
--> 389 return to_html(concrete_head(expr))
390
391
e:\software\python36\lib\site-packages\blaze\interactive.py in
concrete_head(expr, n)
220 return odo(head, DataFrame)
221 else:
--> 222 df = odo(head, DataFrame)
223 df.columns = [expr._name]
224 return df
e:\software\python36\lib\site-packages\odo\odo.py in odo(source,
target, **kwargs)
89 odo.append.append - Add things onto existing things
90 """
---> 91 return into(target, source, **kwargs)
e:\software\python36\lib\site-packages\multipledispatch\dispatcher.py
in call(self, *args, **kwargs)
276 self._cache[types] = func
277 try:
--> 278 return func(*args, **kwargs)
279
280 except MDNotImplementedError:
e:\software\python36\lib\site-packages\blaze\interactive.py in into(a,
b, **kwargs)
404 result = compute(b, return_type='native', **kwargs)
405 kwargs['dshape'] = b.dshape
--> 406 return into(a, result, **kwargs)
407
408
e:\software\python36\lib\site-packages\multipledispatch\dispatcher.py
in call(self, *args, **kwargs)
276 self._cache[types] = func
277 try:
--> 278 return func(*args, **kwargs)
279
280 except MDNotImplementedError:
e:\software\python36\lib\site-packages\odo\into.py in wrapped(*args,
**kwargs)
41 raise TypeError('dshape argument is not an instance of DataShape')
42 kwargs['dshape'] = dshape
---> 43 return f(*args, **kwargs)
44 return wrapped
45
e:\software\python36\lib\site-packages\odo\into.py in into_type(a, b,
dshape, **kwargs)
51 if dshape is None:
52 dshape = discover(b)
---> 53 return convert(a, b, dshape=dshape, **kwargs)
54
55
e:\software\python36\lib\site-packages\odo\core.py in call(self,
*args, **kwargs)
42
43 def call(self, *args, **kwargs):
---> 44 return _transform(self.graph, *args, **kwargs)
45
46
e:\software\python36\lib\site-packages\odo\core.py in
_transform(graph, target, source, excluded_edges, ooc_types, **kwargs)
55 pth = path(graph, type(source), target,
56 excluded_edges=excluded_edges,
---> 57 ooc_types=ooc_types)
58 try:
59 for (A, B, f) in pth:
e:\software\python36\lib\site-packages\odo\core.py in path(graph,
source, target, excluded_edges, ooc_types)
92 pth = nx.shortest_path(g, source=source, target=target, weight='cost')
93 result = [(src, tgt, graph.edge[src][tgt]['func'])
---> 94 for src, tgt in zip(pth, pth[1:])]
95 return result
96
e:\software\python36\lib\site-packages\odo\core.py in (.0)
92 pth = nx.shortest_path(g, source=source, target=target, weight='cost')
93 result = [(src, tgt, graph.edge[src][tgt]['func'])
---> 94 for src, tgt in zip(pth, pth[1:])]
95 return result
96
AttributeError: 'DiGraph' object has no attribute 'edge'
So,what's the problem?

Answer 1

Simply, use the command "traffic.data.Stop_year"! That's enough.