mandos.model.apis.pubchem_support._nav_fns.Mapx.str_to() - Code Metrics - Inspection of "build(deps): bump pyarrow from 3.0.0 to 4.0.1" - dmyersturnbull/mandos - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — dependabot/pip/pyarrow-4.0.1 ( ca09ce...b2836e )

unknown

created 2021-07-05 18:49 UTC

Mapx.str_to() B

↳ Parent: mandos.model.apis.pubchem_support._nav_fns

Complexity

Conditions

Size

Total Lines	15
Code Lines	13

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	8
eloc	13
nop	4
dl	0
loc	15
rs	7.3333
c	0
b	0
f	0

"""
Support classes to help with querying and processing web data.
"""
from __future__ import annotations

import re
from datetime import date, datetime
from typing import Any, Callable, FrozenSet, Iterable, Optional, Set, Type, TypeVar, Union

from pocketutils.tools.base_tools import BaseTools

from pocketutils.tools.string_tools import StringTools


from mandos.model.apis.pubchem_support._nav_model import FilterFn

T = TypeVar("T")


empty_frozenset = frozenset([])


class Filter:

    @classmethod
    def has_key(cls, key: str) -> FilterFn:

        return FilterFn(lambda content: key in content)

    @classmethod
    def key_does_not_equal(cls, key: str, disallowed_value: Any) -> FilterFn:

        return FilterFn(lambda content: content.get(key) != disallowed_value)

    @classmethod
    def key_equals(cls, key: str, allowed_value: Any) -> FilterFn:

        return FilterFn(lambda content: content.get(key) == allowed_value)

    @classmethod
    def key_is_not_in(cls, key: str, disallowed_values: Set[Any]) -> FilterFn:

        return FilterFn(lambda content: content.get(key) not in disallowed_values)

    @classmethod
    def key_is_in(cls, key: str, allowed_values: Set[Any]) -> FilterFn:

        return FilterFn(lambda content: content.get(key) in allowed_values)


class Flatmap:

    @classmethod
    def construct(cls, tp: Type[T]) -> Callable[[Iterable[Any]], T]:

        """
        Function that constructs an instance whose attributes are from the passed list.
        """

        def construct(things: Iterable[str]) -> Optional[str]:
            return tp(*things)

        return construct

    @classmethod
    def join_nonnulls(cls, sep: str = "; ") -> Callable[[Iterable[str]], Optional[str]]:

        def opt_join(things: Iterable[str]) -> Optional[str]:
            x = [s.strip() for s in things]

            return None if len(x) == 0 else sep.join(x)

        return opt_join

    @classmethod
    def request_only(cls) -> Callable[[Iterable[str]], Optional[str]]:

        def only_nonreq(things: Iterable[str]) -> Optional[str]:
            # TODO: Did I mean to excludeNone here?

            things = [s.strip() for s in things if s is not None]
            if len(things) > 1:

                raise ValueError(f"{len(things)} items in {things}")
            elif len(things) == 0:
                return None
            else:
                return things[0]

        return only_nonreq

    @classmethod
    def require_only(cls) -> Callable[[Iterable[str]], Optional[str]]:

        return BaseTools.only


class Mapx:

    @classmethod
    def roman_to_arabic(

        cls, min_val: Optional[int] = None, max_val: Optional[int] = None

    ) -> Callable[[str], int]:
        def roman_to_arabic(s: str) -> int:

            return StringTools.roman_to_arabic(s.strip(), min_val=min_val, max_val=max_val)

        return roman_to_arabic

    @classmethod
    def split_and_flatten_nonnulls(

        cls, sep: str, skip_nulls: bool = False

    ) -> Callable[[Iterable[Union[str, int, float, None]]], Set[str]]:
        def split_flat(things: Iterable[str]) -> Set[str]:
            results = set()
            for thing in things:
                if thing is not None and thing != float("NaN") or not skip_nulls:
                    # let it fail if skip_nulls is False
                    for bit in str(thing).split(sep):
                        results.add(bit.strip())
            return results

        return split_flat

    @classmethod
    def extract_group_1(

        cls, pattern: Union[str, re.Pattern]

    ) -> Callable[[Optional[Any]], Optional[str]]:
        pattern = pattern if isinstance(pattern, re.Pattern) else re.compile(pattern)

        def _match(thing: Optional[str]) -> Optional[str]:
            if thing is None:
                return None
            match = pattern.fullmatch(str(thing))
            if match is None:
                return None
            return match.group(1)

        return _match

    @classmethod
    def lowercase_unless_acronym(cls) -> Callable[[str], str]:

        def lowercase_unless_acronym(s: str) -> str:

            s = s.strip()
            return s if s.isupper() else s.lower()

        return lowercase_unless_acronym

    @classmethod
    def n_bar_items(

        cls, sep: str = "||", null_is_zero: bool = False

    ) -> Callable[[Optional[str]], int]:
        def n_bar_items(value: str) -> int:
            if null_is_zero and value is None:
                return 0
            return len(value.split(sep))

        return n_bar_items

    @classmethod
    def not_null(cls) -> Callable[[Any], bool]:

        return lambda value: value is not None

    @classmethod
    def identity(cls) -> Callable[[T], T]:

        return lambda value: value

    @classmethod
    def int_date(cls, nullable: bool = False) -> Callable[[Optional[str]], Optional[date]]:

        def int_date(s: Optional[str]) -> Optional[date]:

            if s is None and nullable:
                return None
            return datetime.strptime(str(s).strip(), "%Y%m%d").date()

        return int_date

    @classmethod
    def get_str(cls, nullable: bool = False) -> Callable[[str], Optional[str]]:

        def get_str(value):
            if nullable and value is None:

                return None
            elif not isinstance(value, (int, float, str)):
                raise TypeError(f"{value} is a {type(value)}, not int-like")
            return str(value)

        return get_str

    @classmethod
    def get_float(cls, nullable: bool = False) -> Callable[[str], Optional[str]]:

        def get_float(value):
            if nullable and value is None:

                return None
            elif not isinstance(value, (int, float, str)):
                raise TypeError(f"{value} is a {type(value)}, not int-like")
            return float(value)

        return get_float

    @classmethod
    def get_int(cls, nullable: bool = False) -> Callable[[str], Optional[int]]:

        def get_int(value):
            if nullable and value is None:

                return None
            elif not isinstance(value, (int, float, str)):
                raise TypeError(f"{value} is a {type(value)}, not int-like")
            return int(value)

        return get_int

    @classmethod
    def req_is(cls, type_, nullable: bool = False, then_convert=None) -> Callable[[str], str]:

        def req_is(value):
            if nullable and value is None:
                pass
            elif not isinstance(value, type_):
                raise TypeError(f"{value} is a {type(value)}, not {type_}")
            return value if then_convert is None else then_convert(value)

        req_is.__name__ = f"req_is_{type_}" + ("_or_null" if nullable else "")
        return req_is

    @classmethod
    def str_to(

        cls, type_: Callable[[str], T], nullable: bool = False, flex_type: bool = False

    ) -> Callable[[str], str]:
        def str_to(value: Optional[str]) -> Optional[T]:
            if value is None and nullable:

                return None
            elif value is None:
                raise ValueError(f"Value for type {type_} is None")
            if type_ is not None and not flex_type and not isinstance(value, str):
                raise TypeError(f"{value} is a {type(value)}, not str")
            return type_(str(value).strip())

        str_to.__name__ = f"req_is_{type_}" + ("_or_null" if nullable else "")
        return str_to

    @classmethod
    def split_to(

        cls, type_, sep: str = "||", nullable: bool = False

    ) -> Callable[[Optional[str]], FrozenSet[int]]:
        def split_to(value: str) -> FrozenSet[int]:
            return frozenset([type_(x) for x in cls.split(sep, nullable=nullable)(value)])

        return split_to

    @classmethod
    def split(cls, sep: str, nullable: bool = False) -> Callable[[Optional[str]], FrozenSet[str]]:

        def split(value: str) -> FrozenSet[str]:
            if value is None and nullable:

                return empty_frozenset
            elif value is None:
                raise ValueError(f"Value is None")

            return frozenset([s.strip() for s in str(value).split(sep)])

        return split


__all__ = ["Filter", "Mapx", "Flatmap"]


1			"""
2			Support classes to help with querying and processing web data.
3			"""
4			from __future__ import annotations
5
6			import re
7			from datetime import date, datetime
8			from typing import Any, Callable, FrozenSet, Iterable, Optional, Set, Type, TypeVar, Union
9
10			from pocketutils.tools.base_tools import BaseTools
			0 ignored issues – show introduced 2021-02-01 07:03 UTC by Report Bug Copy Issue Report Unable to import 'pocketutils.tools.base_tools' Loading history...
11			from pocketutils.tools.string_tools import StringTools
			0 ignored issues – show introduced 2021-01-25 23:06 UTC by Report Bug Copy Issue Report Unable to import 'pocketutils.tools.string_tools' Loading history...
12
13			from mandos.model.apis.pubchem_support._nav_model import FilterFn
14
15			T = TypeVar("T")
			0 ignored issues – show Coding Style Naming introduced 2021-02-01 07:03 UTC by Report Bug Copy Issue Report Class name "T" doesn't conform to PascalCase naming style ('[^\\W\\da-z][^\\W_]+$' pattern) This check looks for invalid names for a range of different identifiers. You can set regular expressions to which the identifiers must conform if the defaults do not match your requirements. If your project includes a Pylint configuration file, the settings contained in that file take precedence. To find out more about Pylint, please refer to their site. Loading history...
16
17			empty_frozenset = frozenset([])
18
19
20			class Filter:
			0 ignored issues – show introduced 2021-02-01 07:03 UTC by Report Bug Copy Issue Report Missing class docstring Loading history...
21			@classmethod
22			def has_key(cls, key: str) -> FilterFn:
			0 ignored issues – show introduced 2021-01-25 23:06 UTC by Report Bug Copy Issue Report Missing function or method docstring Loading history...
23			return FilterFn(lambda content: key in content)
24
25			@classmethod
26			def key_does_not_equal(cls, key: str, disallowed_value: Any) -> FilterFn:
			0 ignored issues – show introduced 2021-01-25 23:06 UTC by Report Bug Copy Issue Report Missing function or method docstring Loading history...
27			return FilterFn(lambda content: content.get(key) != disallowed_value)
28
29			@classmethod
30			def key_equals(cls, key: str, allowed_value: Any) -> FilterFn:
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31			return FilterFn(lambda content: content.get(key) == allowed_value)
32
33			@classmethod
34			def key_is_not_in(cls, key: str, disallowed_values: Set[Any]) -> FilterFn:
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35			return FilterFn(lambda content: content.get(key) not in disallowed_values)
36
37			@classmethod
38			def key_is_in(cls, key: str, allowed_values: Set[Any]) -> FilterFn:
			0 ignored issues – show introduced 2021-01-25 23:06 UTC by Report Bug Copy Issue Report Missing function or method docstring Loading history...
39			return FilterFn(lambda content: content.get(key) in allowed_values)
40
41
42			class Flatmap:
			0 ignored issues – show introduced 2021-02-01 07:03 UTC by Report Bug Copy Issue Report Missing class docstring Loading history...
43			@classmethod
44			def construct(cls, tp: Type[T]) -> Callable[[Iterable[Any]], T]:
			0 ignored issues – show Coding Style Naming introduced 2021-01-25 23:06 UTC by Report Bug Copy Issue Report Argument name "tp" doesn't conform to snake_case naming style ('([^\\W\\dA-Z][^\\WA-Z]2,\|_[^\\WA-Z]*\|__[^\\WA-Z\\d_][^\\WA-Z]+__)$' pattern) This check looks for invalid names for a range of different identifiers. You can set regular expressions to which the identifiers must conform if the defaults do not match your requirements. If your project includes a Pylint configuration file, the settings contained in that file take precedence. To find out more about Pylint, please refer to their site. Loading history...
45			"""
46			Function that constructs an instance whose attributes are from the passed list.
47			"""
48
49			def construct(things: Iterable[str]) -> Optional[str]:
50			return tp(*things)
51
52			return construct
53
54			@classmethod
55			def join_nonnulls(cls, sep: str = "; ") -> Callable[[Iterable[str]], Optional[str]]:
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56			def opt_join(things: Iterable[str]) -> Optional[str]:
57			x = [s.strip() for s in things]
			0 ignored issues – show Coding Style Naming introduced 2021-01-25 23:06 UTC by Report Bug Copy Issue Report Variable name "x" doesn't conform to snake_case naming style ('([^\\W\\dA-Z][^\\WA-Z]2,\|_[^\\WA-Z]*\|__[^\\WA-Z\\d_][^\\WA-Z]+__)$' pattern) This check looks for invalid names for a range of different identifiers. You can set regular expressions to which the identifiers must conform if the defaults do not match your requirements. If your project includes a Pylint configuration file, the settings contained in that file take precedence. To find out more about Pylint, please refer to their site. Loading history...
58			return None if len(x) == 0 else sep.join(x)
59
60			return opt_join
61
62			@classmethod
63			def request_only(cls) -> Callable[[Iterable[str]], Optional[str]]:
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64			def only_nonreq(things: Iterable[str]) -> Optional[str]:
65			# TODO: Did I mean to excludeNone here?
			0 ignored issues – show Coding Style introduced 2021-02-01 07:03 UTC by Report Bug Copy Issue Report `TODO` and `FIXME` comments should generally be avoided. Loading history...
66			things = [s.strip() for s in things if s is not None]
67			if len(things) > 1:
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68			raise ValueError(f"{len(things)} items in {things}")
69			elif len(things) == 0:
70			return None
71			else:
72			return things[0]
73
74			return only_nonreq
75
76			@classmethod
77			def require_only(cls) -> Callable[[Iterable[str]], Optional[str]]:
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78			return BaseTools.only
79
80
81			class Mapx:
			0 ignored issues – show introduced 2021-02-01 07:03 UTC by Report Bug Copy Issue Report Missing class docstring Loading history...
82			@classmethod
83			def roman_to_arabic(
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84			cls, min_val: Optional[int] = None, max_val: Optional[int] = None
			0 ignored issues – show Coding Style introduced 2021-01-25 23:06 UTC by Report Bug Copy Issue Report Wrong hanging indentation before block (add 4 spaces). Loading history...
85			) -> Callable[[str], int]:
86			def roman_to_arabic(s: str) -> int:
			0 ignored issues – show Coding Style Naming introduced 2021-01-25 23:06 UTC by Report Bug Copy Issue Report Argument name "s" doesn't conform to snake_case naming style ('([^\\W\\dA-Z][^\\WA-Z]2,\|_[^\\WA-Z]*\|__[^\\WA-Z\\d_][^\\WA-Z]+__)$' pattern) This check looks for invalid names for a range of different identifiers. You can set regular expressions to which the identifiers must conform if the defaults do not match your requirements. If your project includes a Pylint configuration file, the settings contained in that file take precedence. To find out more about Pylint, please refer to their site. Loading history...
87			return StringTools.roman_to_arabic(s.strip(), min_val=min_val, max_val=max_val)
88
89			return roman_to_arabic
90
91			@classmethod
92			def split_and_flatten_nonnulls(
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93			cls, sep: str, skip_nulls: bool = False
			0 ignored issues – show Coding Style introduced 2021-01-25 23:06 UTC by Report Bug Copy Issue Report Wrong hanging indentation before block (add 4 spaces). Loading history...
94			) -> Callable[[Iterable[Union[str, int, float, None]]], Set[str]]:
95			def split_flat(things: Iterable[str]) -> Set[str]:
96			results = set()
97			for thing in things:
98			if thing is not None and thing != float("NaN") or not skip_nulls:
99			# let it fail if skip_nulls is False
100			for bit in str(thing).split(sep):
101			results.add(bit.strip())
102			return results
103
104			return split_flat
105
106			@classmethod
107			def extract_group_1(
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108			cls, pattern: Union[str, re.Pattern]
			0 ignored issues – show Coding Style introduced 2021-01-25 23:06 UTC by Report Bug Copy Issue Report Wrong hanging indentation before block (add 4 spaces). Loading history...
109			) -> Callable[[Optional[Any]], Optional[str]]:
110			pattern = pattern if isinstance(pattern, re.Pattern) else re.compile(pattern)
111
112			def _match(thing: Optional[str]) -> Optional[str]:
113			if thing is None:
114			return None
115			match = pattern.fullmatch(str(thing))
116			if match is None:
117			return None
118			return match.group(1)
119
120			return _match
121
122			@classmethod
123			def lowercase_unless_acronym(cls) -> Callable[[str], str]:
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124			def lowercase_unless_acronym(s: str) -> str:
			0 ignored issues – show Coding Style Naming introduced 2021-01-25 23:06 UTC by Report Bug Copy Issue Report Argument name "s" doesn't conform to snake_case naming style ('([^\\W\\dA-Z][^\\WA-Z]2,\|_[^\\WA-Z]*\|__[^\\WA-Z\\d_][^\\WA-Z]+__)$' pattern) This check looks for invalid names for a range of different identifiers. You can set regular expressions to which the identifiers must conform if the defaults do not match your requirements. If your project includes a Pylint configuration file, the settings contained in that file take precedence. To find out more about Pylint, please refer to their site. Loading history...
125			s = s.strip()
126			return s if s.isupper() else s.lower()
127
128			return lowercase_unless_acronym
129
130			@classmethod
131			def n_bar_items(
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132			cls, sep: str = "\|\|", null_is_zero: bool = False
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133			) -> Callable[[Optional[str]], int]:
134			def n_bar_items(value: str) -> int:
135			if null_is_zero and value is None:
136			return 0
137			return len(value.split(sep))
138
139			return n_bar_items
140
141			@classmethod
142			def not_null(cls) -> Callable[[Any], bool]:
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143			return lambda value: value is not None
144
145			@classmethod
146			def identity(cls) -> Callable[[T], T]:
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147			return lambda value: value
148
149			@classmethod
150			def int_date(cls, nullable: bool = False) -> Callable[[Optional[str]], Optional[date]]:
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151			def int_date(s: Optional[str]) -> Optional[date]:
			0 ignored issues – show Coding Style Naming introduced 2021-01-25 23:06 UTC by Report Bug Copy Issue Report Argument name "s" doesn't conform to snake_case naming style ('([^\\W\\dA-Z][^\\WA-Z]2,\|_[^\\WA-Z]*\|__[^\\WA-Z\\d_][^\\WA-Z]+__)$' pattern) This check looks for invalid names for a range of different identifiers. You can set regular expressions to which the identifiers must conform if the defaults do not match your requirements. If your project includes a Pylint configuration file, the settings contained in that file take precedence. To find out more about Pylint, please refer to their site. Loading history...
152			if s is None and nullable:
153			return None
154			return datetime.strptime(str(s).strip(), "%Y%m%d").date()
155
156			return int_date
157
158			@classmethod
159			def get_str(cls, nullable: bool = False) -> Callable[[str], Optional[str]]:
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160			def get_str(value):
161			if nullable and value is None:
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162			return None
163			elif not isinstance(value, (int, float, str)):
164			raise TypeError(f"{value} is a {type(value)}, not int-like")
165			return str(value)
166
167			return get_str
168
169			@classmethod
170			def get_float(cls, nullable: bool = False) -> Callable[[str], Optional[str]]:
			0 ignored issues – show introduced 2021-02-01 07:03 UTC by Report Bug Copy Issue Report Missing function or method docstring Loading history...
171			def get_float(value):
172			if nullable and value is None:
			0 ignored issues – show unused-code introduced 2021-04-03 02:07 UTC by Report Bug Copy Issue Report Unnecessary "elif" after "return" Loading history...
173			return None
174			elif not isinstance(value, (int, float, str)):
175			raise TypeError(f"{value} is a {type(value)}, not int-like")
176			return float(value)
177
178			return get_float
179
180			@classmethod
181			def get_int(cls, nullable: bool = False) -> Callable[[str], Optional[int]]:
			0 ignored issues – show introduced 2021-02-01 07:03 UTC by Report Bug Copy Issue Report Missing function or method docstring Loading history...
182			def get_int(value):
183			if nullable and value is None:
			0 ignored issues – show unused-code introduced 2021-04-03 02:07 UTC by Report Bug Copy Issue Report Unnecessary "elif" after "return" Loading history...
184			return None
185			elif not isinstance(value, (int, float, str)):
186			raise TypeError(f"{value} is a {type(value)}, not int-like")
187			return int(value)
188
189			return get_int
190
191			@classmethod
192			def req_is(cls, type_, nullable: bool = False, then_convert=None) -> Callable[[str], str]:
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193			def req_is(value):
194			if nullable and value is None:
195			pass
196			elif not isinstance(value, type_):
197			raise TypeError(f"{value} is a {type(value)}, not {type_}")
198			return value if then_convert is None else then_convert(value)
199
200			req_is.__name__ = f"req_is_{type_}" + ("_or_null" if nullable else "")
201			return req_is
202
203			@classmethod
204			def str_to(
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205			cls, type_: Callable[[str], T], nullable: bool = False, flex_type: bool = False
			0 ignored issues – show Coding Style introduced 2021-02-01 07:03 UTC by Report Bug Copy Issue Report Wrong hanging indentation before block (add 4 spaces). Loading history...
206			) -> Callable[[str], str]:
207			def str_to(value: Optional[str]) -> Optional[T]:
208			if value is None and nullable:
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209			return None
210			elif value is None:
211			raise ValueError(f"Value for type {type_} is None")
212			if type_ is not None and not flex_type and not isinstance(value, str):
213			raise TypeError(f"{value} is a {type(value)}, not str")
214			return type_(str(value).strip())
215
216			str_to.__name__ = f"req_is_{type_}" + ("_or_null" if nullable else "")
217			return str_to
218
219			@classmethod
220			def split_to(
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221			cls, type_, sep: str = "\|\|", nullable: bool = False
			0 ignored issues – show Coding Style introduced 2021-04-03 02:07 UTC by Report Bug Copy Issue Report Wrong hanging indentation before block (add 4 spaces). Loading history...
222			) -> Callable[[Optional[str]], FrozenSet[int]]:
223			def split_to(value: str) -> FrozenSet[int]:
224			return frozenset([type_(x) for x in cls.split(sep, nullable=nullable)(value)])
225
226			return split_to
227
228			@classmethod
229			def split(cls, sep: str, nullable: bool = False) -> Callable[[Optional[str]], FrozenSet[str]]:
			0 ignored issues – show introduced 2021-04-05 17:29 UTC by Report Bug Copy Issue Report Missing function or method docstring Loading history...
230			def split(value: str) -> FrozenSet[str]:
231			if value is None and nullable:
			0 ignored issues – show unused-code introduced 2021-04-05 17:29 UTC by Report Bug Copy Issue Report Unnecessary "elif" after "return" Loading history...
232			return empty_frozenset
233			elif value is None:
234			raise ValueError(f"Value is None")
			0 ignored issues – show introduced 2021-02-01 07:03 UTC by Report Bug Copy Issue Report Using an f-string that does not have any interpolated variables Loading history...
235			return frozenset([s.strip() for s in str(value).split(sep)])
236
237			return split
238
239
240			__all__ = ["Filter", "Mapx", "Flatmap"]
241

dmyersturnbull / mandos

Push — dependabot/pip/pyarrow-4.0.1 ( ca09ce...b2836e )

Mapx.str_to() B

Complexity

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Duplication

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Duplication Side-by-Side

Filter issues like