---------------------------------------------------------------------------
KeyError Traceback (most recent call last)
/Users/vassr/.virtualenvs/gapsincare/lib/python3.5/site-packages/datashape/coretypes.py in __init__(self, *args)
395 try:
--> 396 encoding = _canonical_string_encodings[encoding]
397 except KeyError:
KeyError: 'utf8_bin'
During handling of the above exception, another exception occurred:
ValueError Traceback (most recent call last)
<ipython-input-50-d24c1eaedb48> in <module>()
1
2
----> 3 claims = blaze.Data(db.url)
/Users/vassr/.virtualenvs/gapsincare/lib/python3.5/site-packages/blaze/interactive.py in Data(data, dshape, name, fields, schema, **kwargs)
117 dshape = datashape.dshape(dshape)
118 if not dshape:
--> 119 dshape = discover(data)
120 types = None
121 if isinstance(dshape.measure, Tuple) and fields:
/Users/vassr/.virtualenvs/gapsincare/lib/python3.5/site-packages/multipledispatch/dispatcher.py in __call__(self, *args, **kwargs)
162 self._cache[types] = func
163 try:
--> 164 return func(*args, **kwargs)
165
166 except MDNotImplementedError:
/Users/vassr/.virtualenvs/gapsincare/lib/python3.5/site-packages/odo/backends/sql.py in discover(engine)
259 @dispatch(sa.engine.base.Engine)
260 def discover(engine):
--> 261 return discover(metadata_of_engine(engine))
262
263
/Users/vassr/.virtualenvs/gapsincare/lib/python3.5/site-packages/multipledispatch/dispatcher.py in __call__(self, *args, **kwargs)
162 self._cache[types] = func
163 try:
--> 164 return func(*args, **kwargs)
165
166 except MDNotImplementedError:
/Users/vassr/.virtualenvs/gapsincare/lib/python3.5/site-packages/odo/backends/sql.py in discover(metadata)
272 name = table.name
273 try:
--> 274 pairs.append([name, discover(table)])
275 except sa.exc.CompileError as e:
276 print("Can not discover type of table %s.\n" % name +
/Users/vassr/.virtualenvs/gapsincare/lib/python3.5/site-packages/multipledispatch/dispatcher.py in __call__(self, *args, **kwargs)
162 self._cache[types] = func
163 try:
--> 164 return func(*args, **kwargs)
165
166 except MDNotImplementedError:
/Users/vassr/.virtualenvs/gapsincare/lib/python3.5/site-packages/odo/backends/sql.py in discover_sqlalchemy_selectable(t)
201 def discover_sqlalchemy_selectable(t):
202 ordering = dict((c, i) for i, c in enumerate(c for c in t.columns.keys()))
--> 203 records = list(sum([discover(c).parameters[0] for c in t.columns], ()))
204 fkeys = [discover(fkey, t, parent_measure=Record(records))
205 for fkey in t.foreign_keys]
/Users/vassr/.virtualenvs/gapsincare/lib/python3.5/site-packages/odo/backends/sql.py in <listcomp>(.0)
201 def discover_sqlalchemy_selectable(t):
202 ordering = dict((c, i) for i, c in enumerate(c for c in t.columns.keys()))
--> 203 records = list(sum([discover(c).parameters[0] for c in t.columns], ()))
204 fkeys = [discover(fkey, t, parent_measure=Record(records))
205 for fkey in t.foreign_keys]
/Users/vassr/.virtualenvs/gapsincare/lib/python3.5/site-packages/multipledispatch/dispatcher.py in __call__(self, *args, **kwargs)
162 self._cache[types] = func
163 try:
--> 164 return func(*args, **kwargs)
165
166 except MDNotImplementedError:
/Users/vassr/.virtualenvs/gapsincare/lib/python3.5/site-packages/odo/backends/sql.py in discover_sqlalchemy_column(c)
195 def discover_sqlalchemy_column(c):
196 meta = Option if c.nullable else identity
--> 197 return Record([(c.name, meta(discover(c.type)))])
198
199
/Users/vassr/.virtualenvs/gapsincare/lib/python3.5/site-packages/multipledispatch/dispatcher.py in __call__(self, *args, **kwargs)
162 self._cache[types] = func
163 try:
--> 164 return func(*args, **kwargs)
165
166 except MDNotImplementedError:
/Users/vassr/.virtualenvs/gapsincare/lib/python3.5/site-packages/odo/backends/sql.py in discover_typeengine(typ)
173 return datashape.Decimal(precision=typ.precision, scale=typ.scale)
174 if isinstance(typ, (sa.String, sa.Unicode)):
--> 175 return datashape.String(typ.length, typ.collation)
176 else:
177 for k, v in revtypes.items():
/Users/vassr/.virtualenvs/gapsincare/lib/python3.5/site-packages/datashape/coretypes.py in __init__(self, *args)
397 except KeyError:
398 raise ValueError('Unsupported string encoding %s' %
--> 399 repr(encoding))
400
401 self.encoding = encoding
ValueError: Unsupported string encoding 'utf8_bin'
despite all manner of connection string permutations (with charset specification, without...etc), create_engine strategies, etc, blaze had trouble reading a mysql database that sqlalchemy, and, for that matter, pandas, had no issue with. using latest versions of everything
adding this key to the _canonical_string_encodings resolved this error
Using python 3
despite all manner of connection string permutations (with charset specification, without...etc), create_engine strategies, etc, blaze had trouble reading a mysql database that sqlalchemy, and, for that matter, pandas, had no issue with. using latest versions of everything
adding this key to the
_canonical_string_encodings
resolved this error