def get_loc(self, key, method=None, tolerance=None): """ Get integer location for requested label. Parameters ---------- key : Period, NaT, str, or datetime String or datetime key must be parsable as Period. Returns ------- loc : int or ndarray[int64] Raises ------ KeyError Key is not present in the index. TypeError If key is listlike or otherwise not hashable. """ orig_key = key if not is_scalar(key): raise InvalidIndexError(key) if isinstance(key, str): try: loc = self._get_string_slice(key) return loc except (TypeError, ValueError): pass try: asdt, reso = parse_time_string(key, self.freq) except (ValueError, DateParseError) as err: # A string with invalid format raise KeyError(f"Cannot interpret '{key}' as period") from err reso = Resolution.from_attrname(reso) grp = reso.freq_group freqn = self.dtype.freq_group # _get_string_slice will handle cases where grp < freqn assert grp >= freqn # BusinessDay is a bit strange. It has a *lower* code, but we never parse # a string as "BusinessDay" resolution, just Day. if grp == freqn or ( reso == Resolution.RESO_DAY and self.dtype.freq.name == "B" ): key = Period(asdt, freq=self.freq) loc = self.get_loc(key, method=method, tolerance=tolerance) return loc elif method is None: raise KeyError(key) else: key = asdt elif is_integer(key): # Period constructor will cast to string, which we dont want raise KeyError(key) try: key = Period(key, freq=self.freq) except ValueError as err: # we cannot construct the Period raise KeyError(orig_key) from err try: return Index.get_loc(self, key, method, tolerance) except KeyError as err: raise KeyError(orig_key) from err
def get_loc(self, key, method=None, tolerance=None): """ Get integer location for requested label. Parameters ---------- key : Period, NaT, str, or datetime String or datetime key must be parsable as Period. Returns ------- loc : int or ndarray[int64] Raises ------ KeyError Key is not present in the index. TypeError If key is listlike or otherwise not hashable. """ orig_key = key self._check_indexing_error(key) if is_valid_na_for_dtype(key, self.dtype): key = NaT elif isinstance(key, str): try: parsed, reso = self._parse_with_reso(key) except ValueError as err: # A string with invalid format raise KeyError(f"Cannot interpret '{key}' as period") from err if self._can_partial_date_slice(reso): try: return self._partial_date_slice(reso, parsed) except KeyError as err: # TODO: pass if method is not None, like DTI does? raise KeyError(key) from err if reso == self.dtype.resolution: # the reso < self.dtype.resolution case goes through _get_string_slice key = Period(parsed, freq=self.freq) loc = self.get_loc(key, method=method, tolerance=tolerance) # Recursing instead of falling through matters for the exception # message in test_get_loc3 (though not clear if that really matters) return loc elif method is None: raise KeyError(key) else: key = Period(parsed, freq=self.freq) elif isinstance(key, Period): sfreq = self.freq kfreq = key.freq if not (sfreq.n == kfreq.n and sfreq._period_dtype_code == kfreq._period_dtype_code): # GH#42247 For the subset of DateOffsets that can be Period freqs, # checking these two attributes is sufficient to check equality, # and much more performant than `self.freq == key.freq` raise KeyError(key) elif isinstance(key, datetime): try: key = Period(key, freq=self.freq) except ValueError as err: # we cannot construct the Period raise KeyError(orig_key) from err else: # in particular integer, which Period constructor would cast to string raise KeyError(key) try: return Index.get_loc(self, key, method, tolerance) except KeyError as err: raise KeyError(orig_key) from err
def get_loc(self, key, method=None, tolerance=None): """ Get integer location for requested label. Parameters ---------- key : Period, NaT, str, or datetime String or datetime key must be parsable as Period. Returns ------- loc : int or ndarray[int64] Raises ------ KeyError Key is not present in the index. TypeError If key is listlike or otherwise not hashable. """ orig_key = key if not is_scalar(key): raise InvalidIndexError(key) if is_valid_na_for_dtype(key, self.dtype): key = NaT elif isinstance(key, str): try: loc = self._get_string_slice(key) return loc except (TypeError, ValueError): pass try: asdt, reso_str = parse_time_string(key, self.freq) except (ValueError, DateParseError) as err: # A string with invalid format raise KeyError(f"Cannot interpret '{key}' as period") from err reso = Resolution.from_attrname(reso_str) grp = reso.freq_group.value freqn = self.dtype.freq_group_code # _get_string_slice will handle cases where grp < freqn assert grp >= freqn # BusinessDay is a bit strange. It has a *lower* code, but we never parse # a string as "BusinessDay" resolution, just Day. if grp == freqn or (reso == Resolution.RESO_DAY and self.dtype.freq.name == "B"): key = Period(asdt, freq=self.freq) loc = self.get_loc(key, method=method, tolerance=tolerance) return loc elif method is None: raise KeyError(key) else: key = asdt elif isinstance(key, Period): sfreq = self.freq kfreq = key.freq if not (sfreq.n == kfreq.n and sfreq._period_dtype_code == kfreq._period_dtype_code): # GH#42247 For the subset of DateOffsets that can be Period freqs, # checking these two attributes is sufficient to check equality, # and much more performant than `self.freq == key.freq` raise KeyError(key) elif isinstance(key, datetime): try: key = Period(key, freq=self.freq) except ValueError as err: # we cannot construct the Period raise KeyError(orig_key) from err else: # in particular integer, which Period constructor would cast to string raise KeyError(key) try: key = Period(key, freq=self.freq) except ValueError as err: # we cannot construct the Period raise KeyError(orig_key) from err try: return Index.get_loc(self, key, method, tolerance) except KeyError as err: raise KeyError(orig_key) from err
def get_loc(self, key, method=None, tolerance=None): """ Get integer location for requested label. Parameters ---------- key : Period, NaT, str, or datetime String or datetime key must be parseable as Period. Returns ------- loc : int or ndarray[int64] Raises ------ KeyError Key is not present in the index. TypeError If key is listlike or otherwise not hashable. """ orig_key = key if not is_scalar(key): raise InvalidIndexError(key) if isinstance(key, str): try: loc = self._get_string_slice(key) return loc except (TypeError, ValueError): pass try: asdt, reso = parse_time_string(key, self.freq) except DateParseError: # A string with invalid format raise KeyError(f"Cannot interpret '{key}' as period") grp = resolution.Resolution.get_freq_group(reso) freqn = resolution.get_freq_group(self.freq) # _get_string_slice will handle cases where grp < freqn assert grp >= freqn if grp == freqn: key = Period(asdt, freq=self.freq) loc = self.get_loc(key, method=method, tolerance=tolerance) return loc elif method is None: raise KeyError(key) else: key = asdt elif is_integer(key): # Period constructor will cast to string, which we dont want raise KeyError(key) try: key = Period(key, freq=self.freq) except ValueError: # we cannot construct the Period raise KeyError(orig_key) try: return Index.get_loc(self, key, method, tolerance) except KeyError: raise KeyError(orig_key)
def get_loc(self, key, method=None, tolerance=None): """ Get integer location for requested label. Parameters ---------- key : Period, NaT, str, or datetime String or datetime key must be parsable as Period. Returns ------- loc : int or ndarray[int64] Raises ------ KeyError Key is not present in the index. TypeError If key is listlike or otherwise not hashable. """ orig_key = key self._check_indexing_error(key) if is_valid_na_for_dtype(key, self.dtype): key = NaT elif isinstance(key, str): try: parsed, reso = self._parse_with_reso(key) except ValueError as err: # A string with invalid format raise KeyError(f"Cannot interpret '{key}' as period") from err if self._can_partial_date_slice(reso): try: return self._partial_date_slice(reso, parsed) except KeyError as err: # TODO: pass if method is not None, like DTI does? raise KeyError(key) from err if reso == self._resolution_obj: # the reso < self._resolution_obj case goes # through _get_string_slice key = self._cast_partial_indexing_scalar(key) loc = self.get_loc(key, method=method, tolerance=tolerance) # Recursing instead of falling through matters for the exception # message in test_get_loc3 (though not clear if that really matters) return loc elif method is None: raise KeyError(key) else: key = self._cast_partial_indexing_scalar(parsed) elif isinstance(key, Period): key = self._maybe_cast_for_get_loc(key) elif isinstance(key, datetime): key = self._cast_partial_indexing_scalar(key) else: # in particular integer, which Period constructor would cast to string raise KeyError(key) try: return Index.get_loc(self, key, method, tolerance) except KeyError as err: raise KeyError(orig_key) from err