Description
Code Sample, a copy-pastable example if possible
import pandas as pd
df = pd.DataFrame({'SPCName': ['IntervalXxxxxxxxxxxxxxxxxxxxxxxxx']})
df[df.SPCName == 'IntervalA']Problem description
I am getting a recursion error from the above code ( RuntimeError: maximum recursion depth exceeded while calling a Python object )
This issue did not occur in version 0.23.4 but occurs when upgrading to 0.24.1.
I am not aware why using 'IntervalA' in a Boolean lookup or when using the loc indexer should result in RuntimeError
This issue appears to occur regardless of what follows the str 'Interval' for example 'IntervalABC' also fails.
Full traceback
python2.7/site-packages/pandas/core/ops.pyc in wrapper(self, other, axis)
1726
1727 elif (is_extension_array_dtype(self) or
-> 1728 (is_extension_array_dtype(other) and not is_scalar(other))):
1729 # Note: the not is_scalar(other) condition rules out
1730 # e.g. other == "category"
python2.7/site-packages/pandas/core/dtypes/common.pyc in is_extension_array_dtype(arr_or_dtype)
1747 dtype = getattr(arr_or_dtype, 'dtype', arr_or_dtype)
1748 return (isinstance(dtype, ExtensionDtype) or
-> 1749 registry.find(dtype) is not None)
1750
1751
python2.7/site-packages/pandas/core/dtypes/dtypes.pyc in find(self, dtype)
87 for dtype_type in self.dtypes:
88 try:
---> 89 return dtype_type.construct_from_string(dtype)
90 except TypeError:
91 pass
python2.7/site-packages/pandas/core/dtypes/dtypes.pyc in construct_from_string(cls, string)
936 (string.startswith('interval') or
937 string.startswith('Interval'))):
--> 938 return cls(string)
939
940 msg = "a string needs to be passed, got type {typ}"
python2.7/site-packages/pandas/core/dtypes/dtypes.pyc in new(cls, subtype)
897
898 try:
--> 899 subtype = pandas_dtype(subtype)
900 except TypeError:
901 raise TypeError("could not construct IntervalDtype")
python2.7/site-packages/pandas/core/dtypes/common.pyc in pandas_dtype(dtype)
2002
2003 # registered extension types
-> 2004 result = registry.find(dtype)
2005 if result is not None:
2006 return result
... last 4 frames repeated, from the frame below ...
python2.7/site-packages/pandas/core/dtypes/dtypes.pyc in find(self, dtype)
87 for dtype_type in self.dtypes:
88 try:
---> 89 return dtype_type.construct_from_string(dtype)
90 except TypeError:
91 pass
Expected Output
Empty dataframe because the str 'IntervalA' doesnt exist in the dataframe col SPCName.
Output of pd.show_versions()
[paste the output of pd.show_versions() here below this line]
INSTALLED VERSIONS
commit: None
python: 2.7.14.final.0
python-bits: 64
OS: Linux
OS-release: 2.6.32-642.6.2.el6.x86_64
machine: x86_64
processor: x86_64
byteorder: little
LC_ALL: None
LANG: en_US
LOCALE: None.None
pandas: 0.24.1
pytest: 3.6.4
pip: 18.0
setuptools: 40.2.0
Cython: None
numpy: 1.15.1
scipy: None
pyarrow: None
xarray: None
IPython: 5.8.0
sphinx: None
patsy: None
dateutil: 2.7.3
pytz: 2018.5
blosc: None
bottleneck: None
tables: 3.4.4
numexpr: 2.6.8
feather: None
matplotlib: 2.2.3
openpyxl: 2.5.12
xlrd: None
xlwt: None
xlsxwriter: None
lxml.etree: None
bs4: None
html5lib: 1.0.1
sqlalchemy: None
pymysql: None
psycopg2: None
jinja2: 2.10
s3fs: None
fastparquet: None
pandas_gbq: None
pandas_datareader: None
gcsfs: None