# Coverage for pygeodesy/unitsBase.py : 99%

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 | # -*- coding: utf-8 -*- u'''Basic C{Float}, C{Int} and C{Str}ing units classes. ''' from pygeodesy.errors import UnitError, _XError, _xkwds_popitem from pygeodesy.interns import NN, _degrees_, _invalid_, _meter_, \ _radians_, _radians2_, _radius_, \ _UNDER_, _std_ # PYCHOK used! from pygeodesy.lazily import _ALL_DOCS, _ALL_LAZY from pygeodesy.named import modulename, _Named, property_doc_ # from pygeodesy.props import property_doc_ # from .named from pygeodesy.streprs import Fmt, fstr __all__ = _ALL_LAZY.unitsBase __version__ = '22.09.25' class _NamedUnit(_Named): '''(INTERNAL) Base class for C{units}. ''' _std_repr = True # set below _units = None @property_doc_(' standard C{repr} or named C{toRepr} representation.') def std_repr(self): '''Get the representation (C{bool}, C{True} means standard). ''' return self._std_repr @std_repr.setter # PYCHOK setter! def std_repr(self, std): '''Set the representation (C{True} or C{"std"} for standard). ''' self._std_repr = std in (True, _std_) def _toRepr(self, value): '''(INTERNAL) Representation "<name> (<value>)" or "<classname>(<value>)". ''' return Fmt.PARENSPACED(self.name, value) if self.name else \ Fmt.PAREN( self.classname, value) @property_doc_(' units name.') def units(self): '''Get the units name (C{str}). ''' if self._units is None: self._units = self.classname return self._units @units.setter # PYCHOK setter! def units(self, units): '''Set the units name for this instance (C{str} or C{None} for default). ''' self._units = None if units is None else str(units) class Float(float, _NamedUnit): '''Named C{float}. ''' # _std_repr = True # set below def __new__(cls, arg=None, name=NN, Error=UnitError, **name_arg): '''New C{Ffloat} instance. @kwarg arg: The value (any C{type} convertable to C{float}). @kwarg name: Optional instance name (C{str}). @kwarg Error: Optional error to raise, overriding the default L{UnitError}. @kwarg name_arg: Optional C{name=arg} keyword argument, inlieu of B{C{name}} and B{C{arg}}. @returns: A C{Float} instance. @raise Error: Invalid B{C{arg}}. ''' if name_arg: name, arg = _xkwds_popitem(name_arg) try: self = float.__new__(cls, arg) if name: _NamedUnit.name.fset(self, name) # see _Named.name except Exception as x: # XXX not ... as x: raise _Error(cls, arg, name, Error, x=x) return self def __repr__(self): # to avoid MRO(float) '''Return a representation of this C{Float}. @see: Method C{Float.toRepr} and property C{Float.std_repr}. @note: Use C{env} variable C{PYGEODESY_FLOAT_STD_REPR=std} prior to C{import pygeodesy} to get the standard C{repr} or set property C{std_repr=False} to always get the named C{toRepr} representation. ''' return self.toRepr(std=self._std_repr) def __str__(self): # to avoid MRO(float) '''Return this C{Float} as standard C{str}. ''' # XXX must use super(Float, self)... since super()... # only works for Python 3+ and float.__str__(self) # invokes .__repr__(self); calling self.toRepr(std=True) # super(Float, self).__repr__() mimicks this behavior # XXX the default number of decimals is 10-12 when using # float.__str__(self) with both python 3.8+ and 2.7-, but # float.__repr__(self) shows DIG decimals in python2.7! # return super(Float, self).__repr__() # see .test.testCss.py return float.__str__(self) # always _std_str_ def toRepr(self, std=False, **prec_fmt_ints): # PYCHOK prec=8, ... '''Return a representation of this C{Float}. @kwarg std: If C{True} return the standard C{repr}, otherwise the named representation (C{bool}). @see: Methods L{Float.__repr__}, L{Float.toStr} and function L{pygeodesy.fstr} for more documentation. ''' # XXX must use super(Float, self)... since # super()... only works for Python 3+ # return super(Float, self).__repr__() if std else \ return float.__repr__(self) if std else \ self._toRepr(self.toStr(**prec_fmt_ints)) def toStr(self, prec=12, fmt=Fmt.g, ints=False): # PYCHOK prec=8, ... '''Format this C{Float} as C{str}. @see: Method L{Float.__repr__} and function L{pygeodesy.fstr} for more documentation. ''' return fstr(self, prec=prec, fmt=fmt, ints=ints) class Int(int, _NamedUnit): '''Named C{int}. ''' # _std_repr = True # set below def __new__(cls, arg=None, name=NN, Error=UnitError, **name_arg): '''New C{Int} instance. @kwarg arg: The value (any C{type} convertable to C{float}). @kwarg name: Optional instance name (C{str}). @kwarg Error: Optional error to raise, overriding the default L{UnitError}. @kwarg name_arg: Optional C{name=arg} keyword argument, inlieu of B{C{name}} and B{C{arg}}. @returns: An C{Int} instance. @raise Error: Invalid B{C{arg}}. ''' if name_arg: name, arg = _xkwds_popitem(name_arg) try: self = int.__new__(cls, arg) if name: _NamedUnit.name.fset(self, name) # see _Named.name except Exception as x: # XXX not ... as x: raise _Error(cls, arg, name, Error, x=x) return self def __repr__(self): # to avoid MRO(int) '''Return a representation of this named C{int}. @see: Method C{Int.toRepr} and property C{Int.std_repr}. @note: Use C{env} variable C{PYGEODESY_INT_STD_REPR=std} prior to C{import pygeodesy} to get the standard C{repr} or set property C{std_repr=False} to always get the named C{toRepr} representation. ''' return self.toRepr(std=self._std_repr) def __str__(self): # to avoid MRO(int) '''Return this C{Int} as standard C{str}. ''' return self.toStr() def toRepr(self, std=False, **unused): # PYCHOK **unused '''Return a representation of this C{Int}. @kwarg std: If C{True} return the standard C{repr}, otherwise the named representation (C{bool}). @see: Method L{Int.__repr__} for more documentation. ''' r = int.__repr__(self) # self.toStr() return r if std else self._toRepr(r) def toStr(self, **unused): # PYCHOK **unused '''Return this C{Int} as standard C{str}. @see: Method L{Int.__repr__} for more documentation. ''' # XXX must use '%d' % (self,) since # int.__str__(self) fails with 3.8+ return '%d' % (self,) class Radius(Float): '''Named C{float} representing a radius, conventionally in C{meter}. ''' def __new__(cls, arg=None, name=_radius_, **Error_name_arg): '''New L{Radius} instance, see L{Float}. ''' return Float.__new__(cls, arg=arg, name=name, **Error_name_arg) class Str(str, _NamedUnit): '''Named, callable C{str}. ''' # _std_repr = True # set below def __new__(cls, arg=None, name=NN, Error=UnitError, **name_arg): '''New C{Str} instance. @kwarg cls: This class (C{Str} or sub-class). @kwarg arg: The value (any C{type} convertable to C{str}). @kwarg name: Optional instance name (C{str}). @kwarg Error: Optional error to raise, overriding the default (C{ValueError}). @kwarg name_arg: Optional C{name=arg} keyword argument, inlieu of B{C{name}} and B{C{arg}}. @returns: A L{Str} instance. @raise Error: Invalid B{C{arg}}. @see: Callable, not-nameable class L{pygeodesy.Str_}. ''' if name_arg: name, arg = _xkwds_popitem(name_arg) try: self = str.__new__(cls, arg) if name: _NamedUnit.name.fset(self, name) # see _Named.name except Exception as x: # XXX not ... as x: raise _Error(cls, arg, name, Error, x=x) return self def __repr__(self): '''Return a representation of this C{Str}. @see: Method C{Str.toRepr} and property C{Str.std_repr}. @note: Use C{env} variable C{PYGEODESY_STR_STD_REPR=std} prior to C{import pygeodesy} to get the standard C{repr} or set property C{std_repr=False} to always get the named C{toRepr} representation. ''' return self.toRepr(std=self._std_repr) # see .test/testGars.py def __str__(self): '''Return this C{Str} as standard C{str}. ''' return self.toStr() def join_(self, *args, **name_Error): '''Join all positional B{C{args}} like C{self.join(B{args})}. @return: All B{C{args}} joined by this instance (L{Str_}). @note: An other L{Str} instance is returned to make the result re-callable. ''' return Str(str.join(self, map(str, args)), **name_Error) # re-callable __call__ = join_ def toRepr(self, std=False, **unused): # PYCHOK **unused '''Return a representation of this C{Str}. @kwarg std: If C{True} return the standard C{repr}, otherwise the named representation (C{bool}). @see: Method L{Str.__repr__} for more documentation. ''' # must use super(Str, self).. since # super()... only works for Python 3+ and # str.__repr__(self) fails with Python 3.8+ r = super(Str, self).__repr__() return r if std else self._toRepr(r) def toStr(self, **unused): # PYCHOK **unused '''Return this C{Str} as standard C{str}. ''' # must use super(Str, self)... since # super()... only works for Python 3+ and # str.__str__(self) fails with Python 3.8+ return super(Str, self).__str__() _Str_degrees = Str(_degrees_) # PYCHOK in .frechet, .hausdorff _Str_meter = Str(_meter_) # PYCHOK in .frechet, .hausdorff _Str_NN = Str(NN) # PYCHOK in .frechet, .hausdorff _Str_radians = Str(_radians_) # PYCHOK in .frechet, .hausdorff _Str_radians2 = Str(_radians2_) # PYCHOK in .frechet, .hausdorff def _Error(clas, arg, name, Error, txt=_invalid_, x=None): '''(INTERNAL) Return an error with explanation. @arg clas: The C{units} class or sub-class. @arg arg: The original C{unit} value. @arg name: The instance name (C{str}). @arg Error: The Error class to use (C{Excetion}). @kwarg txt: An explanation of the error )C{str}). @kwarg x: Caught exception, used for exception chaining (iff enabled in Python3+). @returns: An B{C{Error}} instance. ''' if x is not None: # caught exception, cause if Error is UnitError: # and isError(x) Error = type(x) # i.e. if not overridden if txt is _invalid_: txt = str(x) # i.e. if not overridden n = name if name else modulename(clas).lstrip(_UNDER_) return _XError(Error, n, arg, txt=txt, cause=x) __all__ += _ALL_DOCS(_NamedUnit) # **) MIT License # # Copyright (C) 2016-2022 -- mrJean1 at Gmail -- All Rights Reserved. # # Permission is hereby granted, free of charge, to any person obtaining a # copy of this software and associated documentation files (the "Software"), # to deal in the Software without restriction, including without limitation # the rights to use, copy, modify, merge, publish, distribute, sublicense, # and/or sell copies of the Software, and to permit persons to whom the # Software is furnished to do so, subject to the following conditions: # # The above copyright notice and this permission notice shall be included # in all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS # OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL # THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR # OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, # ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR # OTHER DEALINGS IN THE SOFTWARE.