I'm trying to create a graph using gremlin-python, but I can't seem to work out how to add an edge.
Using the standard Gremlin console I can do the following:
gremlin> a = g.addV().next()
==>v[0]
gremlin> b = g.addV().next()
==>v[1]
gremlin> g.V()
==>v[0]
==>v[1]
gremlin> a.addEdge('conn', b)
==>e[2][0-conn->1]
gremlin> g.E()
==>e[2][0-conn->1]
gremlin>
But when trying to do the same via python connected to gremlin server, I can't seem to do the same:
>>> a = g.addV().next()
>>> b = g.addV().next()
>>> g.V().toList()
[v[1519], v[1520]]
>>> a.addEdge('conn', b)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'Vertex' object has no attribute 'addEdge'
I've tried various incantations, but can't seem to work it out, and can't find any examples anywhere. Also, I see reference in the Gremlin docs to both addE and addEdge but can't work out what the difference is (neither appear to work above).
Edit: Getting a bit further, but still no luck. It seems GraphTraversal.addE() exists, so if I don't call next() then I can call addE... but still I don't seem to be able to get the arguments something it likes.
>>> a = g.addV()
>>> b = g.addV()
>>> a.addE('foo', b).toList()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Development/matt/lib/python2.7/site-packages/gremlin_python/process/traversal.py", line 52, in toList
return list(iter(self))
File "/Development/matt/lib/python2.7/site-packages/gremlin_python/process/traversal.py", line 70, in next
return self.__next__()
File "/Development/matt/lib/python2.7/site-packages/gremlin_python/process/traversal.py", line 43, in __next__
self.traversal_strategies.apply_strategies(self)
File "/Development/matt/lib/python2.7/site-packages/gremlin_python/process/traversal.py", line 284, in apply_strategies
traversal_strategy.apply(traversal)
File "/Development/matt/lib/python2.7/site-packages/gremlin_python/driver/remote_connection.py", line 95, in apply
remote_traversal = self.remote_connection.submit(traversal.bytecode)
File "/Development/matt/lib/python2.7/site-packages/gremlin_python/driver/driver_remote_connection.py", line 53, in submit
traversers = self._loop.run_sync(lambda: self.submit_traversal_bytecode(request_id, bytecode))
File "/Development/matt/lib/python2.7/site-packages/tornado/ioloop.py", line 457, in run_sync
return future_cell[0].result()
File "/Development/matt/lib/python2.7/site-packages/tornado/concurrent.py", line 237, in result
raise_exc_info(self._exc_info)
File "/Development/matt/lib/python2.7/site-packages/tornado/gen.py", line 1021, in run
yielded = self.gen.throw(*exc_info)
File "/Development/matt/lib/python2.7/site-packages/gremlin_python/driver/driver_remote_connection.py", line 73, in submit_traversal_bytecode
traversers = yield self._execute_message(message)
File "/Development/matt/lib/python2.7/site-packages/tornado/gen.py", line 1015, in run
value = future.result()
File "/Development/matt/lib/python2.7/site-packages/tornado/concurrent.py", line 237, in result
raise_exc_info(self._exc_info)
File "/Development/matt/lib/python2.7/site-packages/tornado/gen.py", line 1021, in run
yielded = self.gen.throw(*exc_info)
File "/Development/matt/lib/python2.7/site-packages/gremlin_python/driver/driver_remote_connection.py", line 149, in _execute_message
recv_message = yield response.receive()
File "/Development/matt/lib/python2.7/site-packages/tornado/gen.py", line 1015, in run
value = future.result()
File "/Development/matt/lib/python2.7/site-packages/tornado/concurrent.py", line 237, in result
raise_exc_info(self._exc_info)
File "/Development/matt/lib/python2.7/site-packages/tornado/gen.py", line 1024, in run
yielded = self.gen.send(value)
File "/Development/matt/lib/python2.7/site-packages/gremlin_python/driver/driver_remote_connection.py", line 236, in receive
"{0}: {1}".format(status_code, recv_message["status"]["message"]))
gremlin_python.driver.driver_remote_connection.GremlinServerError: 599: Could not locate method: DefaultGraphTraversal.addE([foo, [AddVertexStep({})]])
As far as I know, addEdge() works on the graph object and addE() works on the graph traversal object. Since you were using g() which is the latter, you need addE().
Seems the following syntax works:
>>> a = g.addV()
>>> b = g.addV()
>>> a.addE('foo').to(b).toList()
[e[1534][1532-foo->1533]]
I'm still not clear on the difference between addE and addEdge but I guess the latter is not available in python and I was confusing the signature of them.
Related
I was trying this tutorial given in the MistQL for a personal work but this below code is throwing exception as given below
import mistql
data="{\"foo\": \"bar\"}"
query = '#.foo'
results = mistql.query(query, data)
print(results)
Traceback (most recent call last): File "C:\Temp\sample.py", line 4,
in
purchaserEmails = mistql.query(query, data) File "C:\Python3.10.0\lib\site-packages\mistql\query.py", line 18, in query
result = execute_outer(ast, data) File "C:\Python3.10.0\lib\site-packages\mistql\execute.py", line 73, in
execute_outer
return execute(ast, build_initial_stack(data, builtins)) File "C:\Python3.10.0\lib\site-packages\typeguard_init_.py", line 1033,
in wrapper
retval = func(*args, **kwargs) File "C:\Python3.10.0\lib\site-packages\mistql\execute.py", line 60, in
execute
return execute_fncall(ast.fn, ast.args, stack) File "C:\Python3.10.0\lib\site-packages\typeguard_init_.py", line 1033,
in wrapper
retval = func(*args, **kwargs) File "C:\Python3.10.0\lib\site-packages\mistql\execute.py", line 28, in
execute_fncall
return function_definition(arguments, stack, execute) File "C:\Python3.10.0\lib\site-packages\mistql\builtins.py", line 37, in
wrapped
return fn(arguments, stack, exec) File "C:\Python3.10.0\lib\site-packages\mistql\builtins.py", line 168, in
dot
return _index_single(RuntimeValue.of(right.name), left) File "C:\Python3.10.0\lib\site-packages\mistql\builtins.py", line 295, in
_index_single
assert_type(index, RVT.Number) File "C:\Python3.10.0\lib\site-packages\mistql\runtime_value.py", line 344,
in assert_type
raise MistQLTypeError(f"Expected {expected_type}, got {value.type}") mistql.exceptions.MistQLTypeError: Expected
RuntimeValueType.Number, got RuntimeValueType.String
Strings passed as data into MistQL's query method correspond to MistQL string types, and thus the #.foo query is attempting to index the string "{\"foo\": \"bar\"}") using the "foo" value, leading to the error above.
MistQL is expecting native dictionaries and lists. The correspondence between Python data types and MistQL data types can be seen here
That being said, the error message is indeed very confusing and should be fixed post-haste! Issue here
I'm working on slowly converting my very serialized text analysis engine to use Modin and Ray. Feels like I'm nearly there, however, I seem to have hit a stumbling block. My code looks like this:
vectorizer = TfidfVectorizer(
analyzer=ngrams, encoding="ascii", stop_words="english", strip_accents="ascii"
)
tf_idf_matrix = vectorizer.fit_transform(r_strings["name"])
r_vectorizer = ray.put(vectorizer)
r_tf_idf_matrix = ray.put(tf_idf_matrix)
n = 2
match_results = []
for fn in files["c.file"]:
match_results.append(
match_name.remote(fn, r_vectorizer, r_tf_idf_matrix, r_strings, n)
)
match_returns = ray.get(match_results)
I'm following the guidance from the "anti-patterns" section in the Ray documentation, on what to avoid, and this is very similar to that of the "better" pattern.
Traceback (most recent call last):
File "alt.py", line 213, in <module>
match_returns = ray.get(match_results)
File "/home/myuser/.local/lib/python3.7/site-packages/ray/_private/client_mode_hook.py", line 62, in wrapper
return func(*args, **kwargs)
File "/home/myuser/.local/lib/python3.7/site-packages/ray/worker.py", line 1501, in get
raise value.as_instanceof_cause()
ray.exceptions.RayTaskError(PicklingError): ray::match_name() (pid=23393, ip=192.168.1.173)
File "python/ray/_raylet.pyx", line 564, in ray._raylet.execute_task
File "python/ray/_raylet.pyx", line 565, in ray._raylet.execute_task
File "python/ray/_raylet.pyx", line 1652, in ray._raylet.CoreWorker.store_task_outputs
File "/home/myuser/.local/lib/python3.7/site-packages/ray/serialization.py", line 327, in serialize
return self._serialize_to_msgpack(value)
File "/home/myuser/.local/lib/python3.7/site-packages/ray/serialization.py", line 307, in _serialize_to_msgpack
self._serialize_to_pickle5(metadata, python_objects)
File "/home/myuser/.local/lib/python3.7/site-packages/ray/serialization.py", line 267, in _serialize_to_pickle5
raise e
File "/home/myuser/.local/lib/python3.7/site-packages/ray/serialization.py", line 264, in _serialize_to_pickle5
value, protocol=5, buffer_callback=writer.buffer_callback)
File "/home/myuser/.local/lib/python3.7/site-packages/ray/cloudpickle/cloudpickle_fast.py", line 73, in dumps
cp.dump(obj)
File "/home/myuser/.local/lib/python3.7/site-packages/ray/cloudpickle/cloudpickle_fast.py", line 580, in dump
return Pickler.dump(self, obj)
_pickle.PicklingError: args[0] from __newobj__ args has the wrong class
Definitely an unexpected result. I'm not sure where to go next with this and would appreciate help from folks who have more experience with Ray and Modin.
Can someone help me with the stacktrace generated while using happybase library?
I am trying to pass a dictionary object of python 3.4 in the 'put' method and the following stack trace is generated::
x
b"TWLb'25-Jan-13'"
data_values
{b'Low': b'0.10', b'Date': b'25-Jan-13', b'Volume': b'-', b'Close': b'0.12', b'High': b'0.12', b'Open': b'0.12'}
Traceback (most recent call last):
File "/home/msingal/Desktop/asd/Daily.py", line 63, in insert
hbase_test.insert_data(code, data_format)
File "/home/msingal/Desktop/asd/hbase_test.py", line 56, in insert_data
con.table(ticker, use_prefix=False).put(x, data_values)
File "/usr/lib/python3.4/site-packages/happybase/table.py", line 464, in put
batch.put(row, data)
File "/usr/lib/python3.4/site-packages/happybase/batch.py", line 137, in __exit__
self.send()
File "/usr/lib/python3.4/site-packages/happybase/batch.py", line 60, in send
self._table.connection.client.mutateRows(self._table.name, bms, {})
File "/usr/lib64/python3.4/site-packages/thriftpy/thrift.py", line 198, in _req
return self._recv(_api)
File "/usr/lib64/python3.4/site-packages/thriftpy/thrift.py", line 210, in _recv
fname, mtype, rseqid = self._iprot.read_message_begin()
File "thriftpy/protocol/cybin/cybin.pyx", line 429, in cybin.TCyBinaryProtocol.read_message_begin (thriftpy/protocol/cybin/cybin.c:6325)
File "thriftpy/protocol/cybin/cybin.pyx", line 60, in cybin.read_i32 (thriftpy/protocol/cybin/cybin.c:1546)
File "thriftpy/transport/buffered/cybuffered.pyx", line 65, in thriftpy.transport.buffered.cybuffered.TCyBufferedTransport.c_read (thriftpy/transport/buffered/cybuffered.c:1881)
File "thriftpy/transport/buffered/cybuffered.pyx", line 69, in thriftpy.transport.buffered.cybuffered.TCyBufferedTransport.read_trans (thriftpy/transport/buffered/cybuffered.c:1948)
File "thriftpy/transport/cybase.pyx", line 61, in thriftpy.transport.cybase.TCyBuffer.read_trans (thriftpy/transport/cybase.c:1472)
File "/usr/lib64/python3.4/site-packages/thriftpy/transport/socket.py", line 125, in read
message='TSocket read 0 bytes')
thriftpy.transport.TTransportException: TTransportException(message='TSocket read 0 bytes', type=4)
The lines of code are::
ticker = 'TWLB'
data_values = {b'Low': b'0.10', b'Date': b'25-Jan-13', b'Volume': b'-', b'Close': b'0.12', b'High': b'0.12', b'Open': b'0.12'}
x = (ticker + str(data_values.get(b'Date'))).encode('ASCII')
print('x')
print(x)
print('data_values')
print(data_values)
con.table(ticker, use_prefix=False).put(x, data_values)
Any help on solution and explaination would be apprciated.
I am new to StackOverflow so if my language feels offencive, please forgive me. I have tried to provide all the relevant info but if some info is missing let me know and I will update.
I've just started using pycassa, so if this is a stupid question, I apologize upfront.
I have a column family with the following schema:
create column family MyColumnFamilyTest
with column_type = 'Standard'
and comparator = 'CompositeType(org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.TimeUUIDType)'
and default_validation_class = 'BytesType'
and key_validation_class = 'UTF8Type'
and read_repair_chance = 0.1
and dclocal_read_repair_chance = 0.0
and populate_io_cache_on_flush = false
and gc_grace = 864000
and min_compaction_threshold = 4
and max_compaction_threshold = 32
and replicate_on_write = true
and compaction_strategy = 'org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy'
and caching = 'KEYS_ONLY'
and compression_options = {'sstable_compression' : 'org.apache.cassandra.io.compress.SnappyCompressor'};
When I try to do a get() with a valid key (works fine in cassandra-cli) I get:
Traceback (most recent call last):
File "<pyshell#19>", line 1, in <module>
cf.get('mykey',column_count=3)
File "/usr/local/lib/python2.7/dist-packages/pycassa-1.11.0-py2.7.egg/pycassa/columnfamily.py", line 664, in get
return self._cosc_to_dict(list_col_or_super, include_timestamp, include_ttl)
File "/usr/local/lib/python2.7/dist-packages/pycassa-1.11.0-py2.7.egg/pycassa/columnfamily.py", line 368, in _cosc_to_dict
ret[self._unpack_name(col.name)] = self._col_to_dict(col, include_timestamp, include_ttl)
File "/usr/local/lib/python2.7/dist-packages/pycassa-1.11.0-py2.7.egg/pycassa/columnfamily.py", line 444, in _unpack_name
return self._name_unpacker(b)
File "/usr/local/lib/python2.7/dist-packages/pycassa-1.11.0-py2.7.egg/pycassa/marshal.py", line 140, in unpack_composite
components.append(unpacker(bytestr[2:2 + length]))
File "/usr/local/lib/python2.7/dist-packages/pycassa-1.11.0-py2.7.egg/pycassa/marshal.py", line 374, in <lambda>
return lambda v: uuid.UUID(bytes=v)
File "/usr/lib/python2.7/uuid.py", line 144, in __init__
raise ValueError('bytes is not a 16-char string')
ValueError: bytes is not a 16-char string
Here's some more information I've discovered:
When using cassandra-cli I can see the data as:
% cassandra-cli -h 10.249.238.131
Connected to: "LocalDB" on 10.249.238.131/9160
Welcome to Cassandra CLI version 1.2.10-SNAPSHOT
Type 'help;' or '?' for help.
Type 'quit;' or 'exit;' to quit.
[default#unknown] use Keyspace;
[default#Keyspace] list ColumnFamily;
Using default limit of 100
Using default cell limit of 100
-------------------
RowKey: urn:keyspace:ColumnFamily:a36e8ab1-7032-4e4c-a53d-e3317f63a640:
=> (name=autoZoning:::, value=01, timestamp=1391298393966000)
=> (name=creationTime:::, value=00000143efd8b76e, timestamp=1391298393966000)
=> (name=inactive:::14fe78e0-8b9b-11e3-b171-005056b700bb, value=00, timestamp=1391298393966000)
=> (name=label:::14fe78e0-8b9b-11e3-b171-005056b700bb, value=726a6d2d766e782d76613031, timestamp=1391298393966000)
1 Row Returned.
Elapsed time: 16 msec(s).
Since it was unclear what was causing the exception, I decided to add a print prior to the 'return self._name_unpacker(b)' line in columnfamily.py and I see:
>>> cf.get(dict(cf.get_range(column_count=0,filter_empty=False)).keys()[0])
Attempting to unpack: <00>\rautoZoning<00><00><00><00><00><00><00><00><00><00>
Traceback (most recent call last):
File "<pyshell#172>", line 1, in <module>
cf.get(dict(cf.get_range(column_count=0,filter_empty=False)).keys()[0])
File "/usr/local/lib/python2.7/dist-packages/pycassa-1.11.0-py2.7.egg/pycassa/columnfamily.py", line 665, in get
return self._cosc_to_dict(list_col_or_super, include_timestamp, include_ttl)
File "/usr/local/lib/python2.7/dist-packages/pycassa-1.11.0-py2.7.egg/pycassa/columnfamily.py", line 368, in _cosc_to_dict
ret[self._unpack_name(col.name)] = self._col_to_dict(col, include_timestamp, include_ttl)
File "/usr/local/lib/python2.7/dist-packages/pycassa-1.11.0-py2.7.egg/pycassa/columnfamily.py", line 445, in _unpack_name
return self._name_unpacker(b)
File "/usr/local/lib/python2.7/dist-packages/pycassa-1.11.0-py2.7.egg/pycassa/marshal.py", line 140, in unpack_composite
components.append(unpacker(bytestr[2:2 + length]))
File "/usr/local/lib/python2.7/dist-packages/pycassa-1.11.0-py2.7.egg/pycassa/marshal.py", line 374, in <lambda>
return lambda v: uuid.UUID(bytes=v)
File "/usr/lib/python2.7/uuid.py", line 144, in __init__
raise ValueError('bytes is not a 16-char string')
ValueError: bytes is not a 16-char string
I have no idea where the extra characters are coming from around the column name. But that got me curious so I added another print in _cosc_to_dict in columnfamily.py and I see:
>>> cf.get(dict(cf.get_range(column_count=0,filter_empty=False)).keys()[0])
list_col_or_super is: []
list_col_or_super is: [ColumnOrSuperColumn(column=Column(timestamp=1391298393966000,
name='\x00\rautoZoning\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00', value='\x01', ttl=None),
counter_super_column=None, super_column=None, counter_column=None),
ColumnOrSuperColumn(column=Column(timestamp=1391298393966000,
name='\x00\x0ccreationTime\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00',
value='\x00\x00\x01C\xef\xd8\xb7n', ttl=None), counter_super_column=None, super_column=None,
counter_column=None), ColumnOrSuperColumn(column=Column(timestamp=1391298393966000,
name='\x00\x08inactive\x00\x00\x00\x00\x00\x00\x00\x00\x10\x14\xfex\xe0\x8b\x9b\x11\xe3\xb1q\x00PV\xb7\x00\xbb\x00', value='\x00', ttl=None), counter_super_column=None, super_column=None,
counter_column=None), ColumnOrSuperColumn(column=Column(timestamp=1391298393966000,
name='\x00\x05label\x00\x00\x00\x00\x00\x00\x00\x00\x10\x14\xfex\xe0\x8b\x9b\x11\xe3\xb1q\x00PV\xb7\x00\xbb\x00', value='thisIsATest', ttl=None), counter_super_column=None, super_column=None, counter_column=None)]
autoZoning unpack:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/lib64/python2.6/site-packages/pycassa-1.11.0-py2.6.egg/pycassa/columnfamily.py", line 666, in get
return self._cosc_to_dict(list_col_or_super, include_timestamp, include_ttl)
File "/usr/local/lib64/python2.6/site-packages/pycassa-1.11.0-py2.6.egg/pycassa/columnfamily.py", line 369, in _cosc_to_dict
ret[self._unpack_name(col.name)] = self._col_to_dict(col, include_timestamp, include_ttl)
File "/usr/local/lib64/python2.6/site-packages/pycassa-1.11.0-py2.6.egg/pycassa/columnfamily.py", line 446, in _unpack_name
return self._name_unpacker(b)
File "/usr/local/lib64/python2.6/site-packages/pycassa-1.11.0-py2.6.egg/pycassa/marshal.py", line 140, in unpack_composite
components.append(unpacker(bytestr[2:2 + length]))
File "/usr/local/lib64/python2.6/site-packages/pycassa-1.11.0-py2.6.egg/pycassa/marshal.py", line 374, in <lambda>
return lambda v: uuid.UUID(bytes=v)
File "/usr/lib64/python2.6/uuid.py", line 144, in __init__
raise ValueError('bytes is not a 16-char string')
ValueError: bytes is not a 16-char string
Am I correct in assuming that the extra characters around the column names are what is responsible for the 'ValueError: bytes is not a 16-char string' exception?
Also if I try to use the column name and select it I get:
>>> cf.get(u'urn:keyspace:ColumnFamily:a36e8ab1-7032-4e4c-a53d-e3317f63a640:',columns=['autoZoning:::'])
Traceback (most recent call last):
File "<pyshell#184>", line 1, in <module>
cf.get(u'urn:keyspace:ColumnFamily:a36e8ab1-7032-4e4c-a53d-e3317f63a640:',columns=['autoZoning:::'])
File "/usr/local/lib/python2.7/dist-packages/pycassa-1.11.0-py2.7.egg/pycassa/columnfamily.py", line 651, in get
cp = self._column_path(super_column, column)
File "/usr/local/lib/python2.7/dist-packages/pycassa-1.11.0-py2.7.egg/pycassa/columnfamily.py", line 383, in _column_path
self._pack_name(column, False))
File "/usr/local/lib/python2.7/dist-packages/pycassa-1.11.0-py2.7.egg/pycassa/columnfamily.py", line 426, in _pack_name
return self._name_packer(value, slice_start)
File "/usr/local/lib/python2.7/dist-packages/pycassa-1.11.0-py2.7.egg/pycassa/marshal.py", line 115, in pack_composite
packed = packer(item)
File "/usr/local/lib/python2.7/dist-packages/pycassa-1.11.0-py2.7.egg/pycassa/marshal.py", line 298, in pack_uuid
randomize=True)
File "/usr/local/lib/python2.7/dist-packages/pycassa-1.11.0-py2.7.egg/pycassa/util.py", line 75, in convert_time_to_uuid
'neither a UUID, a datetime, or a number')
ValueError: Argument for a v1 UUID column name or value was neither a UUID, a datetime, or a number
Any further thoughts?
Thanks,
Rob
Turns out that the problem wasn't with the key, it was being caused, in part, by a bug in pycassa that wasn't handling an empty (null) string in the column UUID. A short-term fix is in the answer in google groups:
https://groups.google.com/d/msg/pycassa-discuss/Vf_bSgDIi9M/KTA1kbE9IXAJ
The other part of the answer was to get at the columns by using tuples (with the UUID as a UUID and not a str) instead of a string with ':' separators because that's, as I found out, a cassandra-cli thing.
Trying to run the simple lettuce tests scenario (from here). I get these:
Traceback (most recent call last):
File "C:\Python27\lib\site-packages\lettuce-0.2.19-py2.7.egg\lettuce\registry.py", line 88, in call_hook
callback(*args, **kw)
File "C:\Python27\lib\site-packages\lettuce-0.2.19-py2.7.egg\lettuce\plugins\colored_shell_output.py", line 91, in pri
nt_step_ran
width, height = terminal.get_size()
File "C:\Python27\lib\site-packages\lettuce-0.2.19-py2.7.egg\lettuce\terminal.py", line 24, in get_size
size = get_terminal_size_win()
File "C:\Python27\lib\site-packages\lettuce-0.2.19-py2.7.egg\lettuce\terminal.py", line 43, in get_terminal_size_win
res = windll.kernel32.GetConsoleScreenBufferInfo(h, csbi)
ArgumentError: argument 2: <type 'exceptions.TypeError'>: expected LP_CONSOLE_SCREEN_BUFFER_INFO instance instead of c_c
har_Array_22
Died with argument 2: <type 'exceptions.TypeError'>: expected LP_CONSOLE_SCREEN_BUFFER_INFO instance instead of c_char_A
rray_22
Traceback (most recent call last):
File "C:\Python27\lib\site-packages\lettuce-0.2.19-py2.7.egg\lettuce\__init__.py", line 164, in run
failfast=self.failfast))
File "C:\Python27\lib\site-packages\lettuce-0.2.19-py2.7.egg\lettuce\core.py", line 1186, in run
scenarios_ran.extend(scenario.run(ignore_case, failfast=failfast))
File "C:\Python27\lib\site-packages\lettuce-0.2.19-py2.7.egg\lettuce\core.py", line 726, in run
results.append(run_scenario(self, run_callbacks=True))
File "C:\Python27\lib\site-packages\lettuce-0.2.19-py2.7.egg\lettuce\core.py", line 699, in run_scenario
all_steps, steps_passed, steps_failed, steps_undefined, reasons_to_fail = Step.run_all(self.steps, outline, run_call
backs, ignore_case, failfast=failfast)
File "C:\Python27\lib\site-packages\lettuce-0.2.19-py2.7.egg\lettuce\core.py", line 472, in run_all
call_hook('after_each', 'step', step)
File "C:\Python27\lib\site-packages\lettuce-0.2.19-py2.7.egg\lettuce\registry.py", line 88, in call_hook
callback(*args, **kw)
File "C:\Python27\lib\site-packages\lettuce-0.2.19-py2.7.egg\lettuce\plugins\colored_shell_output.py", line 91, in pri
nt_step_ran
width, height = terminal.get_size()
File "C:\Python27\lib\site-packages\lettuce-0.2.19-py2.7.egg\lettuce\terminal.py", line 24, in get_size
size = get_terminal_size_win()
File "C:\Python27\lib\site-packages\lettuce-0.2.19-py2.7.egg\lettuce\terminal.py", line 43, in get_terminal_size_win
res = windll.kernel32.GetConsoleScreenBufferInfo(h, csbi)
ArgumentError: argument 2: <type 'exceptions.TypeError'>: expected LP_CONSOLE_SCREEN_BUFFER_INFO instance instead of c_c
har_Array_22
Am I missing some configuration tricks?
lettuce -v [x]
where x can be 1, 2 or 3 and specifies the amount of detail shown about the run.
Found the hint here
http://www.erlisvidal.com/2010/10/how-install-lettuce-windows.html
windows haven't fcntl model.
Edit the file init.py located in c:\Python27\Lib\site-packages\lettuce-0.1.20-py2.7.egg\lettuce__init__.py
"In that file locate the line that contains"
in my machine this line appears in line 121 .
you can replace that line with the line:
from lettuce.plugins import shell_output as output