1

2# -*- coding: utf-8 -*-

3

4 u'''Lazily import C{pygeodesy} modules and attributes, based on

5 U{lazy_import<https://modutil.ReadTheDocs.io/en/latest/#lazy_import>}

6 from I{Brett Cannon}'s U{modutil<https://PyPI.org/project/modutil>}.

7

8 C{Lazy import} is I{supported only for }U{Python 3.7+

9<https://Snarky.Ca/lazy-importing-in-python-3-7>} and is I{enabled by

10 default} in U{PyGeodesy 18.11.10<https://PyPI.org/project/PyGeodesy>}

11 I{and newer}.

12

13 To I{enable} C{lazy import}, set C{env} variable C{PYGEODESY_LAZY_IMPORT}

14 to C{1}, C{2}, C{3} or higher prior to C{import pygeodesy}. To I{disable}

15 C{lazy import}, set C{env} variable C{PYGEODESY_LAZY_IMPORT} to C{0} or

16 an empty string. Use C{2} or higher to print a message for each lazily

17 imported module and attribute, similar to C{env} variable C{PYTHONVERBOSE}

18 showing imports. Using C{3} or higher also shows the importing file name

19 and line number.

20

21@note: C{Lazy import} applies only to top-level modules of C{pygeodesy}.

22 The C{lazy import} of a top-level module invariably loads all

23 sub-modules imported by that top-level module.

24

25@note: C{Lazy import} raises a L{LazyAttributeError} or L{LazyImportError}

26 depending on the cause of the error and such errors can occur late,

27 after all initial imports.

28'''

29

30# from pygeodesy.errors import _xError2 # _ALL_MODS

31 from pygeodesy.interns import MISSING, NN, __all__ as _interns__all__, _areaOf_, \

32 _attribute_, _by_, _COLONSPACE_, _COMMASPACE_, \

33 _doesn_t_exist_, _DOT_, _enabled_, _EQUALSPACED_, \

34 _from_, _HASH_, _immutable_, _isclockwise_, _ispolar_, \

35 _NL_, _no_, _NorthPole_, _not_, _or_, _pygeodesy_, \

36 _line_, _module_, _pygeodesy_abspath_, _Python_, _QUOTE1_, \

37 _QUOTE2_, _SouthPole_, _SPACE_, _sub_packages, _UNDER_, \

38 _version_, _dunder_nameof, _headof, _tailof # _DEPRECATED_

39 from pygeodesy.interns import _intern # PYCHOK used!

40# from pygeodesy.streprs import Fmt, pairs, unstr # _ALL_MODS

41 from pygeodesy import _isfrozen # handle as w/o lazy import

42

43 from os import getenv as _getenv # in .errors, .geodsolve, .props, .units

44 from os.path import basename as _basename

45 import sys as _sys # in .basics._sizeof

46 try:

47 from importlib import import_module

48 except ImportError: # Python 2.6-

49 def import_module(name, *package):

50 t = _ALL_MODS.streprs.unstr(import_module, name, *package)

51 raise LazyImportError(t, txt=_doesn_t_exist_)

52

53_a_l_l_ = '__all__' # .__main__

54__as__ = ' as '

55_FOR_DOCS = _getenv('PYGEODESY_FOR_DOCS', NN) # for epydoc ...

56_from_DOT__ = _SPACE_(NN, _from_, _DOT_)

57_i0 = () # PYCHOK empty tuple

58_init__all__ = _FOR_DOCS or _getenv('PYGEODESY_INIT__ALL__', _a_l_l_) == _a_l_l_ # PYCHOK expoted

59_lazily_ = 'lazily'

60_lazily_imported__ = _SPACE_(_HASH_, _lazily_, 'imported', NN)

61_p_a_c_k_a_g_e_ = '__package__'

62_PYGEODESY_GEOCONVERT_ = 'PYGEODESY_GEOCONVERT' # PYCHOK .mgrs, test.bases

63_PYGEODESY_GEODSOLVE_ = 'PYGEODESY_GEODSOLVE' # PYCHOK .geodsolve, test.bases

64_PYGEODESY_LAZY_IMPORT_ = 'PYGEODESY_LAZY_IMPORT'

65_PYGEODESY_RHUMBSOLVE_ = 'PYGEODESY_RHUMBSOLVE' # PYCHOK .rhumb.solve, test.bases

66_PYTHON_X_DEV = getattr(_sys, '_xoptions', {}).get('dev', # Python 3.2+

67 _getenv('PYTHONDEVMODE', NN)) # PYCHOK exported

68_sys_version_info2 = _sys.version_info[:2] # in .basics, .fmath, ...

69_unlazy = _unLazy0 = _isfrozen or _sys_version_info2 < (3, 7) # PYCHOK mod.__getattr__ 3.7+

70_WARNINGS_X_DEV = _getenv('PYGEODESY_WARNINGS', NN) and (

71 _PYTHON_X_DEV or bool(_sys.warnoptions)) # PYCHOK .props

72# @module_property[_RO?] <https://GitHub.com/jtushman/proxy_tools/>

73 isLazy = None # see @var isLazy in .__init__

74

75

76 class LazyAttributeError(AttributeError):

77 '''Raised if a C{lazily imported} attribute is missing or invalid.

78 '''

79 def __init__(self, *name_value, **txt):

80 _ALL_MODS.errors._error_init(AttributeError, self, name_value, **txt)

81

82

83 class LazyImportError(ImportError):

84 '''Raised if C{lazy import} is not supported, disabled or failed some other way.

85 '''

86 def __init__(self, *name_value, **txt):

87 _ALL_MODS.errors._error_init(ImportError, self, name_value, **txt)

88

89

90 class _Dict(dict):

91 '''(INTERNAL) Imports C{dict}.

92 '''

93 _name = NN

94

95 def __getattr__(self, attr):

96 try:

97 return self[attr]

98 except KeyError:

99 return dict.__getattr__(self, attr)

100

101# def __setattr__(self, attr, value):

102# if attr in self:

103# self[attr] = value

104# else:

105# dict.__setattr__(self, attr, value)

106

107 def add(self, name, mod_, *subs):

108 '''Add a C{[name] = mod_} item.

109

110 @raise AssertionError: The B{C{name}} already exists

111 with a different B{C{mod_}}.

112 '''

113 if name in self:

114 sub = self[name] # duplicate OK

115 if sub != mod_ and sub not in subs: # PYCHOK no cover

116 t = _DOT_(self._name, name)

117 t = _COLONSPACE_(t, repr(sub))

118 t = _COMMASPACE_(t, _not_(repr(mod_)))

119 raise AssertionError(t)

120 else:

121 self[name] = mod_

122

123 def _NAME(self, which):

124 self._name = _intern(which.__name__.upper())

125

126

127 class _NamedEnum_RO(dict):

128 '''(INTERNAL) C{Read_Only} enum-like C{dict} sub-class.

129 '''

130# _name = NN # also first kwd, __init__(_name=...)

131

132 def _DOT_(self, attr): # PYCHOK no cover

133 return _DOT_(self._name, attr) # PYCHOK _name

134

135 def __getattr__(self, attr):

136 try:

137 return self[attr]

138 except KeyError:

139 t = self._DOT_(attr)

140 raise LazyAttributeError(t, txt=_doesn_t_exist_)

141

142 def __setattr__(self, attr, value): # PYCHOK no cover

143 t = _EQUALSPACED_(self._DOT_(attr), value)

144 raise LazyAttributeError(t, txt=_immutable_)

145

146 def enums(self):

147 # Yield all C{(mod_, tuple)} pairs

148 for m, t in dict.items(self):

149 n = m.replace(_UNDER_, _DOT_)

150 if n != m:

151 if m.startswith(_UNDER_):

152 t = None # skip _name= ...

153 else:

154 u = m.rstrip(_UNDER_)

155 if u != m:

156 u = len(u)

157 n = n[:u] + m[u:]

158 if isinstance(t, tuple):

159 yield n, t

160

161 def fill_D(self, _D, which):

162 # Fill C{_Dict _D}.

163 _D._NAME(which)

164 _a = _D.add

165 for m, t in self.enums():

166 _a(m, _DOT_(m, NN, NN)) # import module

167 for a in t:

168 a, _, as_ = a.partition(__as__)

169 if as_: # import attr as attr_

170 _a(as_, _DOT_(m, a, NN), *_sub_packages)

171 else:

172 _a(a, m)

173 return _D

174

175

176 def _i(*names):

177 '''(INTERNAL) Intern all C{names}.

178 '''

179 return tuple(map(_intern, names)) if names else _i0

180

181

182 def _ALL_ATTRS(*attrs):

183 '''(INTERNAL) Unravel all exported module attributes.

184 '''

185 t = ()

186 for attr in attrs:

187 t += tuple(map(_attrof, attr))

188 return t

189

190

191_ALL_INIT = _i(_pygeodesy_abspath_, _version_)

192

193# __all__ value for most modules, accessible as _ALL_LAZY.<module>

194_ALL_LAZY = _NamedEnum_RO(_name='_ALL_LAZY',

195 albers=_i('AlbersEqualArea', 'AlbersEqualArea2', 'AlbersEqualArea4',

196 'AlbersEqualAreaCylindrical', 'AlbersEqualAreaNorth', 'AlbersEqualAreaSouth',

197 'AlbersError', 'Albers7Tuple'),

198 auxilats=_i(), # module only

199 azimuthal=_i('AzimuthalError', 'Azimuthal7Tuple',

200 'Equidistant', 'EquidistantExact', 'EquidistantGeodSolve', 'EquidistantKarney',

201 'Gnomonic', 'GnomonicExact', 'GnomonicGeodSolve', 'GnomonicKarney',

202 'LambertEqualArea', 'Orthographic', 'Stereographic',

203 'equidistant', 'gnomonic'),

204 basics=_i('clips', 'copysign0', 'copytype', 'halfs2',

205 'int1s', 'isbool', 'isCartesian', 'isclass', 'iscomplex', 'isDEPRECATED', 'isfloat',

206 'isidentifier', 'isinstanceof', 'isint', 'iskeyword', 'isLatLon', 'islistuple',

207 'isNvector', 'isodd', 'isscalar', 'issequence', 'isstr', 'issubclassof',

208 'len2', 'map1', 'map2', 'neg', 'neg_',

209 'signBit', 'signOf', 'splice', 'str2ub', 'ub2str', 'unsigned0'),

210 booleans=_i('BooleanFHP', 'BooleanGH', 'LatLonFHP', 'LatLonGH',

211 'isBoolean'),

212 cartesianBase=_i('RadiusThetaPhi3Tuple', 'rtp2xyz', 'rtp2xyz_', 'xyz2rtp', 'xyz2rtp_'),

213 clipy=_i('ClipCS4Tuple', 'ClipFHP4Tuple', 'ClipGH4Tuple', 'ClipLB6Tuple', 'ClipSH3Tuple',

214 'clipCS4', 'clipFHP4', 'clipGH4', 'clipLB6', 'clipSH', 'clipSH3'),

215 css=_i('CassiniSoldner', 'Css', 'CSSError', 'toCss',

216 'EasNorAziRk4Tuple', 'EasNorAziRkEqu6Tuple', 'LatLonAziRk4Tuple'),

217 constants=_i('DIG', 'EPS', 'EPS0', 'EPS02', 'EPS1', 'EPS2', 'EPS4', 'EPS_2',

218 'INF', 'INT0', 'MANT_DIG', 'MAX', 'MAX_EXP', 'MIN', 'MIN_EXP', 'NAN', 'NEG0', 'NINF',

219 'PI', 'PI2', 'PI_2', 'PI3', 'PI_3', 'PI3_2', 'PI4', 'PI_4',

220 'R_FM', 'R_GM', 'R_KM', 'R_M', 'R_MA', 'R_MB', 'R_NM', 'R_QM', 'R_SM', 'R_VM',

221 'float_', 'float0_', 'isclose', 'isfinite', 'isinf', 'isint0',

222 'isnan', 'isnear0', 'isnear1', 'isnear90', 'isneg0', 'isninf', 'isnon0',

223 'remainder'),

224 datums=_i('Datum', 'Datums', 'Transform', 'Transforms'),

225# deprecated=_i(), # module only

226 dms=_i('F_D', 'F_DM', 'F_DMS', 'F_DEG', 'F_MIN', 'F_SEC', 'F_D60', 'F__E', 'F__F', 'F__G', 'F_RAD',

227 'F_D_', 'F_DM_', 'F_DMS_', 'F_DEG_', 'F_MIN_', 'F_SEC_', 'F_D60_', 'F__E_', 'F__F_', 'F__G_', 'F_RAD_',

228 'F_D__', 'F_DM__', 'F_DMS__', 'F_DEG__', 'F_MIN__', 'F_SEC__', 'F_D60__', 'F__E__', 'F__F__', 'F__G__', 'F_RAD__',

229 'S_DEG', 'S_MIN', 'S_SEC', 'S_DMS', 'S_RAD', 'S_SEP',

230 'bearingDMS', 'clipDegrees', 'clipRadians', 'compassDMS', 'compassPoint',

231 'degDMS', 'latDMS', 'latlonDMS', 'latlonDMS_', 'lonDMS', 'normDMS',

232 'parseDDDMMSS', 'parseDMS', 'parseDMS2', 'parse3llh', 'parseRad', 'precision', 'toDMS'),

233 ecef=_i('EcefError', 'EcefFarrell21', 'EcefFarrell22', 'EcefKarney', 'EcefMatrix',

234 'EcefSudano', 'Ecef9Tuple', 'EcefVeness', 'EcefYou'),

235 elevations=_i('Elevation2Tuple', 'GeoidHeight2Tuple',

236 'elevation2', 'geoidHeight2'),

237 ellipsoidalBase=_i(), # module only

238 ellipsoidalBaseDI=_i(), # module only

239 ellipsoidalExact=_i(), # module only

240 ellipsoidalGeodSolve=_i(), # module only

241 ellipsoidalKarney=_i(), # module only

242 ellipsoidalNvector=_i(), # module only

243 ellipsoidalVincenty=_i('VincentyError',), # nothing else

244 ellipsoids=_i('a_f2Tuple', 'Circle4Tuple', 'Curvature2Tuple',

245 'Ellipsoid', 'Ellipsoid2', 'Ellipsoids',

246 'a_b2e', 'a_b2e2', 'a_b2e22', 'a_b2e32', 'a_b2f', 'a_b2f_', 'a_b2f2', 'a_b2n',

247 'a_f2b', 'a_f_2b', 'b_f2a', 'b_f_2a',

248 'e2f', 'e22f',

249 'f2e2', 'f2e22', 'f2e32', 'f_2f', 'f2f_', 'f2f2', 'f2n', 'n2e2', 'n2f', 'n2f_'),

250 elliptic=_i('Elliptic', 'EllipticError', 'Elliptic3Tuple'),

251 epsg=_i('Epsg', 'EPSGError'),

252 errors=_i('AuxError', 'ClipError', 'CrossError', 'GeodesicError', 'IntersectionError',

253 'NumPyError', 'LenError', 'LimitError', 'MGRSError',

254 'ParseError', 'PointsError', 'RangeError', 'RhumbError',

255 'SciPyError', 'SciPyWarning', 'TRFError', 'TriangleError', 'UnitError', 'VectorError',

256 'crosserrors', 'exception_chaining', 'isError', 'itemsorted',

257 'limiterrors', 'rangerrors'),

258 etm=_i('Etm', 'ETMError', 'ExactTransverseMercator',

259 'parseETM5', 'toEtm8'),

260 fmath=_i('Fdot', 'Fhorner', 'Fhypot', 'Fpolynomial', 'Fpowers', 'Fn_rt', 'Fcbrt', 'Fsqrt',

261 'bqrt', 'cbrt', 'cbrt2', 'euclid', 'euclid_',

262 'facos1', 'fasin1', 'fatan', 'fatan1', 'fatan2', 'favg',

263 'fdot', 'fdot3', 'fmean', 'fmean_', 'fhorner', 'fidw', 'fpolynomial',

264 'fpowers', 'fprod', 'frange', 'freduce', 'fremainder',

265 'hypot', 'hypot_', 'hypot1', 'hypot2', 'hypot2_',

266 'norm2', 'norm_', 'sqrt0', 'sqrt3', 'sqrt_a', 'zcrt', 'zqrt'),

267 formy=_i('Radical2Tuple',

268 'antipode', 'antipode_', 'bearing', 'bearing_',

269 'compassAngle', 'cosineForsytheAndoyerLambert', 'cosineForsytheAndoyerLambert_',

270 'cosineAndoyerLambert', 'cosineAndoyerLambert_', 'cosineLaw', 'cosineLaw_',

271 'equirectangular', 'equirectangular_', 'euclidean', 'euclidean_',

272 'excessAbc_', 'excessCagnoli_', 'excessGirard_', 'excessLHuilier_',

273 'excessKarney', 'excessKarney_', 'excessQuad', 'excessQuad_',

274 'flatLocal', 'flatLocal_', 'flatPolar', 'flatPolar_',

275 'hartzell', 'haversine', 'haversine_', 'heightOf', 'heightOrthometric', 'horizon', 'hubeny', 'hubeny_',

276 'intersection2', 'intersections2', 'isantipode', 'isantipode_', 'isnormal', 'isnormal_',

277 'latlon2n_xyz', 'normal', 'normal_', 'n_xyz2latlon', 'n_xyz2philam',

278 'opposing', 'opposing_', 'philam2n_xyz', 'radical2',

279 'thomas', 'thomas_', 'vincentys', 'vincentys_'),

280 frechet=_i('Frechet', 'FrechetDegrees', 'FrechetError', 'FrechetRadians',

281 'FrechetCosineAndoyerLambert', 'FrechetCosineForsytheAndoyerLambert',

282 'FrechetCosineLaw', 'FrechetDistanceTo', 'FrechetEquirectangular',

283 'FrechetEuclidean', 'FrechetExact', 'FrechetFlatLocal', 'FrechetFlatPolar',

284 'FrechetHaversine', 'FrechetHubeny', 'FrechetKarney', 'FrechetThomas',

285 'FrechetVincentys', 'Frechet6Tuple',

286 'frechet_'),

287 fstats=_i('Fcook', 'Flinear', 'Fwelford'),

288 fsums=_i('Fsum', 'Fsum2Tuple', 'ResidualError',

289 'fsum', 'fsum_', 'fsumf_', 'fsum1', 'fsum1_', 'fsum1f_'),

290 gars=_i('Garef', 'GARSError'),

291 geodesicw=_i('Geodesic', 'GeodesicLine', 'Geodesic_WGS84'),

292 geodesicx=_i('gx', 'gxarea', 'gxbases', 'gxline', # modules, see _sub_packages

293 'GeodesicAreaExact', 'GeodesicExact', 'GeodesicLineExact', 'PolygonArea'),

294 geodsolve=_i('GeodesicSolve', 'GeodesicLineSolve', 'GeodSolve12Tuple'),

295 geohash=_i('Geohash', 'GeohashError', 'Neighbors8Dict', 'Resolutions2Tuple'),

296 geoids=_i('GeoidError', 'GeoidG2012B', 'GeoidKarney', 'GeoidPGM', 'egmGeoidHeights',

297 'PGMError', 'GeoidHeight5Tuple'),

298 hausdorff=_i('Hausdorff', 'HausdorffDegrees', 'HausdorffError', 'HausdorffRadians',

299 'HausdorffCosineAndoyerLambert', 'HausdorffCosineForsytheAndoyerLambert',

300 'HausdorffCosineLaw', 'HausdorffDistanceTo', 'HausdorffEquirectangular',

301 'HausdorffEuclidean', 'HausdorffExact', 'HausdorffFlatLocal', 'HausdorffFlatPolar',

302 'HausdorffHaversine', 'HausdorffHubeny', 'HausdorffKarney', 'HausdorffThomas',

303 'HausdorffVincentys', 'Hausdorff6Tuple',

304 'hausdorff_', 'randomrangenerator'),

305 heights=_i('HeightCubic', 'HeightError',

306 'HeightIDWcosineAndoyerLambert', 'HeightIDWcosineForsytheAndoyerLambert',

307 'HeightIDWcosineLaw', 'HeightIDWdistanceTo', 'HeightIDWequirectangular',

308 'HeightIDWeuclidean', 'HeightIDWexact', 'HeightIDWflatLocal', 'HeightIDWflatPolar',

309 'HeightIDWhaversine', 'HeightIDWhubeny', 'HeightIDWkarney', 'HeightIDWthomas',

310 'HeightIDWvincentys', 'HeightLinear', 'HeightLSQBiSpline', 'HeightSmoothBiSpline'),

311 interns=_interns__all__,

312 iters=_i('LatLon2PsxyIter', 'PointsIter', 'points2',

313 'isNumpy2', 'isPoints2', 'isTuple2', 'iterNumpy2', 'iterNumpy2over'),

314 karney=_i('Area3Tuple', 'Caps', 'Direct9Tuple', 'GDict', 'Inverse10Tuple', 'Rhumb8Tuple'),

315 ktm=_i('KTMError', 'KTransverseMercator'),

316 latlonBase=_i(), # module only

317 lazily=_i('LazyAttributeError', 'LazyImportError', 'isLazy', 'print_', 'printf'),

318 lcc=_i('Conic', 'Conics', 'Lcc', 'LCCError', 'toLcc'),

319 ltp=_i('Attitude', 'AttitudeError', 'ChLV', 'ChLVa', 'ChLVe', 'Frustum',

320 'LocalCartesian', 'LocalError', 'Ltp', 'tyr3d'),

321 ltpTuples=_i('Aer', 'Aer4Tuple', 'Attitude4Tuple',

322 'ChLVEN2Tuple', 'ChLV9Tuple', 'ChLVYX2Tuple', 'ChLVyx2Tuple',

323 'Enu', 'Enu4Tuple', 'Footprint5Tuple', 'Local9Tuple', 'Los',

324 'Ned', 'Ned4Tuple', 'Uvw', 'Uvw3Tuple', 'XyzLocal', 'Xyz4Tuple'),

325 mgrs=_i('Mgrs', 'parseMGRS', 'toMgrs', 'Mgrs4Tuple', 'Mgrs6Tuple'),

326 named=_i('callername', 'classname', 'classnaming', 'modulename',

327 'nameof', 'notImplemented', 'notOverloaded'),

328 namedTuples=_i('Bearing2Tuple', 'Bounds2Tuple', 'Bounds4Tuple',

329 'Destination2Tuple', 'Destination3Tuple',

330 'Distance2Tuple', 'Distance3Tuple', 'Distance4Tuple',

331 'EasNor2Tuple', 'EasNor3Tuple', 'Forward4Tuple', 'Intersection3Tuple',

332 'LatLon2Tuple', 'LatLon3Tuple', 'LatLon4Tuple',

333 'LatLonDatum3Tuple', 'LatLonDatum5Tuple',

334 'LatLonPrec3Tuple', 'LatLonPrec5Tuple',

335 'NearestOn2Tuple', 'NearestOn3Tuple', 'NearestOn6Tuple', 'NearestOn8Tuple',

336 'PhiLam2Tuple', 'PhiLam3Tuple', 'PhiLam4Tuple', 'Point3Tuple', 'Points2Tuple',

337 'Reverse4Tuple', 'Triangle7Tuple', 'Triangle8Tuple', 'Trilaterate5Tuple',

338 'UtmUps2Tuple', 'UtmUps5Tuple', 'UtmUps8Tuple', 'UtmUpsLatLon5Tuple',

339 'Vector2Tuple', 'Vector3Tuple', 'Vector4Tuple'),

340 nvectorBase=_i(_NorthPole_, _SouthPole_),

341 osgr=_i('Osgr', 'OSGRError', 'parseOSGR', 'toOsgr'),

342 points=_i('LatLon_', 'LatLon2psxy', 'Numpy2LatLon', 'Shape2Tuple', 'Tuple2LatLon',

343 _areaOf_, 'boundsOf', 'centroidOf', 'fractional',

344 _isclockwise_, 'isconvex', 'isconvex_', 'isenclosedBy', _ispolar_,

345 'luneOf', 'nearestOn5', 'perimeterOf', 'quadOf'),

346 props=_i('Property', 'Property_RO', 'property_RO', 'property_doc_',

347 'deprecated_class', 'deprecated_function', 'deprecated_method',

348 'deprecated_Property_RO', 'deprecated_property_RO', 'DeprecationWarnings'),

349 resections=_i('Collins5Tuple', 'ResectionError', 'Survey3Tuple', 'Tienstra7Tuple',

350 'TriAngle5Tuple', 'TriSide2Tuple', 'TriSide4Tuple',

351 'cassini', 'collins5', 'pierlot', 'pierlotx', 'tienstra7',

352 'snellius3', 'wildberger3',

353 'triAngle', 'triAngle5', 'triArea', 'triSide', 'triSide2', 'triSide4'),

354 rhumb=_i(), # module only

355 rhumb_aux_=_i('RhumbAux', 'RhumbLineAux'),

356 rhumb_ekx=_i('Rhumb', 'RhumbLine'),

357 rhumb_solve=_i('RhumbSolve', 'RhumbLineSolve', 'RhumbSolve7Tuple'),

358 sphericalBase=_i(), # module only

359 sphericalNvector=_i(), # module only

360 sphericalTrigonometry=_i(), # module only

361 simplify=_i('simplify1', 'simplifyRDP', 'simplifyRDPm', 'simplifyRW', 'simplifyVW', 'simplifyVWm'),

362 solveBase=_i(), # module only

363 streprs=_i('anstr', 'attrs', 'enstr2', 'fstr', 'fstrzs', 'hstr', 'instr',

364 'lrstrip', 'pairs', 'reprs', 'strs', 'unstr'),

365 trf=_i('Helmert7Tuple', 'RefFrame', 'RefFrames',

366 'date2epoch', 'epoch2date', 'trfTransforms', 'trfXform'),

367 triaxials=_i('BetaOmega2Tuple', 'BetaOmega3Tuple', 'Jacobi2Tuple',

368 'JacobiConformal', 'JacobiConformalSpherical',

369 'Triaxial', 'Triaxial_', 'TriaxialError', 'Triaxials', 'hartzell4'),

370 units=_i('Band', 'Bearing', 'Bearing_', 'Bool',

371 'Degrees', 'Degrees_', 'Degrees2', 'Distance', 'Distance_', 'Easting', 'Epoch',

372 'Feet', 'FIx', 'Float_', 'Height', 'Height_', 'HeightX', 'Int_',

373 'Lam', 'Lam_', 'Lat', 'Lat_', 'Lon', 'Lon_',

374 'Meter', 'Meter_', 'Meter2', 'Meter3', 'Northing', 'Number_',

375 'Phi', 'Phi_', 'Precision_', 'Radians', 'Radians_', 'Radians2',

376 'Radius_', 'Scalar', 'Scalar_', 'Zone'),

377 unitsBase=_i('Float', 'Int', 'Radius', 'Str'),

378 ups=_i('Ups', 'UPSError', 'parseUPS5', 'toUps8', 'upsZoneBand5'),

379 utily=_i('acos1', 'acre2ha', 'acre2m2', 'asin1', 'atan1', 'atan1d', 'atan2b', 'atan2d',

380 'chain2m', 'circle4', 'cot', 'cot_', 'cotd', 'cotd_',

381 'degrees', 'degrees90', 'degrees180', 'degrees360', 'degrees2grades', 'degrees2m',

382# 'degrees2grades as degrees2gons',

383 'fathom2m', 'ft2m', 'furlong2m',

384 'grades', 'grades400', 'grades2degrees', 'grades2radians',

385# 'grades as gons', 'grades400 as gons400', 'grades2degrees as gons2degrees', 'grades2radians as gons2radians',

386 'km2m', 'm2chain', 'm2degrees', 'm2fathom', 'm2ft', 'm2furlong',

387 'm2km', 'm2NM', 'm2radians', 'm2SM', 'm2toise', 'm2yard', 'NM2m',

388 'radians', 'radiansPI', 'radiansPI2', 'radiansPI_2', 'radians2m',

389 'sincos2', 'SinCos2', 'sincos2_', 'sincos2d', 'sincos2d_', 'sincostan3', 'SM2m',

390 'tand', 'tand_', 'tan_2', 'tanPI_2_2', 'toise2m', 'truncate',

391 'unroll180', 'unrollPI',

392 'wrap90', 'wrap180', 'wrap360', 'wrapPI_2', 'wrapPI', 'wrapPI2', 'wrap_normal',

393 'yard2m'),

394 utm=_i('Utm', 'UTMError', 'parseUTM5', 'toUtm8', 'utmZoneBand5'),

395 utmups=_i('UtmUps', 'UTMUPSError', 'parseUTMUPS5', 'toUtmUps8',

396 'utmupsValidate', 'utmupsValidateOK', 'utmupsZoneBand5'),

397 utmupsBase=_i(), # module only

398 vector2d=_i('Circin6Tuple', 'Circum3Tuple', 'Circum4Tuple', 'Meeus2Tuple', 'Radii11Tuple', 'Soddy4Tuple',

399 'circin6', 'circum3', 'circum4_', 'meeus2', 'radii11', 'soddy4'),

400 vector3d=_i('Vector3d', 'intersection3d3', 'iscolinearWith', 'nearestOn', 'nearestOn6', 'parse3d',

401 'trilaterate2d2', 'trilaterate3d2'),

402 vector3dBase=_i(), # module only

403 webmercator=_i('Wm', 'WebMercatorError', 'parseWM', 'toWm', 'EasNorRadius3Tuple'),

404 wgrs=_i('Georef', 'WGRSError'),)

405

406_ALL_DEPRECATED = _NamedEnum_RO(_name='_ALL_DEPRECATED',

407 deprecated=_i('bases', 'datum', 'nvector', # DEPRECATED modules and ...

408 'rhumbaux', 'rhumbBase', 'rhumbsolve', 'rhumbx'), # ... names

409 deprecated_bases=_i('LatLonHeightBase', 'points2'),

410 deprecated_classes=_i('ClipCS3Tuple', 'EasNorExact4Tuple', 'EcefCartesian',

411 'HeightIDW', 'HeightIDW2', 'HeightIDW3',

412 'LatLonExact4Tuple', 'NearestOn4Tuple', 'Ned3Tuple',

413 'RefFrameError', 'Rhumb7Tuple', 'RhumbOrder2Tuple',

414 'Transform7Tuple', 'TriAngle4Tuple', 'UtmUps4Tuple'),

415 deprecated_consterns=_i('EPS1_2', 'MANTIS', 'OK'),

416 deprecated_datum=_i('Curvature2Tuple', 'Datum', 'Ellipsoid', 'Transform', # assert

417 'Datums', 'Ellipsoids', 'Transforms',

418 'R_M', 'R_MA', 'R_MB', 'R_KM', 'R_NM', 'R_SM', 'R_FM', 'R_VM'),

419 deprecated_functions=_i('anStr', 'areaof', 'atand', 'bounds', # most of the DEPRECATED functions, except ...

420 'clipCS3', 'clipDMS', 'clipStr', 'collins', 'copysign', # ... ellipsoidal, spherical flavors

421 'decodeEPSG2', 'encodeEPSG', 'enStr2', 'equirectangular3',

422 'excessAbc', 'excessGirard', 'excessLHuilier',

423 'false2f', 'falsed2f', 'float0', 'fStr', 'fStrzs', 'hypot3',

424 'inStr', 'isenclosedby', 'istuplist',

425 'joined', 'joined_', 'nearestOn3', 'nearestOn4',

426 'parseUTM', 'perimeterof', 'polygon', 'scalar', 'simplify2',

427 'tienstra', 'toUtm', 'triAngle4', 'unsign0', 'unStr', 'utmZoneBand2'),

428 deprecated_nvector=_i('LatLonNvectorBase', 'Nvector', 'sumOf', 'NorthPole', 'SouthPole'),)

429

430

431 class _ALL_MODS(object):

432 '''(INTERNAL) Memoize import of any L{pygeodesy} module.

433 '''

434 def _DOT_(self, name): # PYCHOK no cover

435 return _DOT_(self.__class__.__name__, name)

436

437 def __getattr__(self, name):

438 '''Get a C{pygeodesy} module or attribute by B{C{name}}.

439

440 @arg name: Qualified module or attribute name (C{str}).

441

442 @raise ImportError: Importing module B{C{name}} failed.

443

444 @raise AttributeError: No attribute named B{C{name}}.

445 '''

446 m = self.getmodule(name)

447 return m if _tailof(m.__name__) == name else \

448 getattr(m, _tailof(name))

449

450 def __setattr__(self, attr, value): # PYCHOK no cover

451 t = _EQUALSPACED_(self._DOT_(attr), repr(value))

452 raise AttributeError(_COLONSPACE_(t, _immutable_))

453

454 def getattr(self, mod, *attr_dflt): # , parent=_pygeodesy_

455 '''Get an attribute of/or a C{pygeodesy} module.

456

457 @arg mod: Qualified module name (C{str}).

458 @arg attr_dflt: Optional attribute name (C{str}) and

459 optional default value (any C{type}).

460

461 @return: The C{pygeodesy} module's attribute value.

462

463 @raise ImportError: Importing module B{C{mod}} failed.

464

465 @raise AttributeError: No attribute named B{C{attr}}.

466 '''

467 v = self.getmodule(mod)

468 if attr_dflt:

469 v = getattr(v, *attr_dflt)

470 return v

471

472 def getmodule(self, name, parent=_pygeodesy_):

473 '''Get a C{pygeodesy} module.

474

475 @arg name: Qualified module name (C{str}).

476

477 @return: The C{pygeodesy} module.

478

479 @raise ImportError: Importing module B{C{name}} failed.

480 '''

481 if _headof(name) != parent:

482 name = _DOT_(parent, name)

483 try:

484 return _sys.modules[name]

485 except KeyError:

486 return import_module(name, parent)

487

488 def items(self): # no module named 'items'

489 '''Yield the modules imported so far.

490 '''

491 for n, m in _sys.modules.items():

492 yield n, m

493

494 @property # property_RO

495 def name(self):

496 return self.__class__.__name__

497

498_ALL_MODS = _ALL_MODS() # PYCHOK singleton

499

500__all__ = _ALL_LAZY.lazily

501__version__ = '24.01.24'

502

503

504 def _ALL_OTHER(*objs):

505 '''(INTERNAL) Get class and function B{C{objs}} for __all__.

506 '''

507 _interns = _ALL_MODS.interns # from pygeodesy import interns

508

509 def _interned(o): # intern'd base name

510 n = _tailof(_dunder_nameof(o))

511 i = NN(_UNDER_, n, _UNDER_) # intern'd

512 return getattr(_interns, i, n)

513

514 return tuple(map(_interned, objs)) # map2

515

516

517 if _FOR_DOCS:

518 _ALL_DOCS = _ALL_OTHER

519 # (INTERNAL) Only export B{C{objs.__name__}} when making the

520 # docs to force C{epydoc} to include certain classes, methods,

521 # functions and other names in the documentation. Using the

522 # C{epydoc --private ...} command line option tends to include

523 # too much internal documentation.

524 else:

525 def _ALL_DOCS(*unused):

526 return ()

527

528

529 def _all_deprecates():

530 '''(INTERNAL) Build C{dict} of all deprecated imports.

531 '''

532 _D = _ALL_DEPRECATES

533 if not _D:

534 _ALL_DEPRECATED.fill_D(_D, _all_deprecates) # see _all_imports()

535 return _D

536

537_ALL_DEPRECATES = _Dict() # PYCHOK _ALL_DEPRECATED.imports()

538

539

540 def _all_imports():

541 '''(INTERNAL) Build C{dict} of all lazy imports.

542 '''

543 # imports naming conventions stored below - [<key>] = <from>:

544 # import <module> - [<module>] = <module>

545 # from <module> import <attr> - [<attr>] = <module>

546 # from pygeodesy import <attr> - [<attr>] = <attr>

547 # from <module> import <attr> as <name> - [<name>] = <module>.<attr>.

548 _D = _ALL_IMPORTS

549 if not _D:

550 _ALL_LAZY.fill_D(_D, _all_imports) # see _all_deprecates()

551 return _D

552

553_ALL_IMPORTS = _Dict() # PYCHOK _ALL_LAZY.imports()

554

555

556 def _all_missing2(_all_):

557 '''(INTERNAL) Get diffs between pygeodesy.__all__ and lazily._all_imports.

558 '''

559 def _diff(one, two):

560 return tuple(sorted(a for a in one if a not in two))

561

562 _alzy = _Dict((a, a) for a in _ALL_INIT)

563 _alzy.update(_all_imports()) # without _all_backups!

564 return ((_DOT_(_lazily_, _all_imports.__name__), _diff(_all_, _alzy)),

565 (_DOT_(_pygeodesy_, _a_l_l_), _diff(_alzy.keys(), _all_)))

566

567

568 def _attrof(attr_as): # .testDeprecated

569 a_, _, as_ = attr_as.partition(__as__)

570 return as_ or a_.rstrip(_DOT_)

571

572

573 def _caller3(up): # in .named

574 '''(INTERNAL) Get 3-tuple C{(caller name, file name, line number)}

575 for the caller B{C{up}} stack frames in the Python call stack.

576 '''

577 # sys._getframe(1) ... 'importlib._bootstrap' line 1032,

578 # may throw a ValueError('call stack not deep enough')

579 f = _sys._getframe(up + 1)

580 return (f.f_code.co_name, # caller name

581 _basename(f.f_code.co_filename), # file name

582 f.f_lineno) # line number

583

584

585 def _lazy_attr(unused): # PYCHOK overwritten in _lazy_import

586 pass

587

588

589# def _lazy_attributes(_name_):

590# '''(INTERNAL) Return a function to C{B{_name_}.__getattr__(attr)}

591# on lazily imported modules and sub-modules.

592# '''

593# if _unlazy:

594# raise AssertionError(_COMMASPACE_(_name_, _not_(_DEPRECATED_)))

595#

596# def _getattr(attr, *dflt):

597# try: # a module name

598# return _ALL_MODS.getmodule(attr)

599# except (AttributeError, ImportError):

600# return _ALL_MODS.getattr(_name_, attr, *dflt)

601#

602# return _getattr

603

604

605 def _lazy_import2(pack): # MCCABE 14

606 '''Check for and set up C{lazy import}.

607

608 @arg pack: The name of the package (C{str}) performing the imports,

609 to help resolving relative imports, usually C{__package__}.

610

611 @return: 2-Tuple C{(package, getattr)} of the importing package for

612 easy reference within itself and the callable to be set to

613 C{package.__getattr__}.

614

615 @raise LazyAttributeError: The package, module or attribute name is

616 invalid or does not exist.

617

618 @raise LazyImportError: Lazy import not supported or not enabled or

619 an import failed.

620

621 @note: This is I{Brett Cannon}'s function U{modutil.lazy_import

622 <https://GitHub.com/brettcannon/modutil/blob/master/modutil.py>}

623 modified to handle the C{__all__} and C{__dir__} attributes and

624 call C{importlib.import_module(<module>.<name>, ...)} without

625 causing a C{ModuleNotFoundError}.

626

627 @see: The original U{modutil<https://PyPI.org/project/modutil>},

628 U{PEP 562<https://www.Python.org/dev/peps/pep-0562>} and the

629 U{new way<https://Snarky.Ca/lazy-importing-in-python-3-7/>}.

630 '''

631 if pack != _pygeodesy_ or _unlazy: # new in 3.7

632 t = _no_(_DOT_(pack, _lazy_import2.__name__)) # PYCHOK no cover

633 raise LazyImportError(t, txt=_Python_(_sys.version))

634

635 package, parent = _lazy_init2(pack) # _pygeodesy_

636

637 subpacks = set((parent, '__main__', NN) + tuple(

638 _DOT_(parent, s) for s in _sub_packages))

639 imports = _all_imports()

640 deprecates = _all_deprecates()

641

642 def __getattr__(name): # __getattr__ only for Python 3.7+

643 # only called once for each undefined pygeodesy attribute

644 mod = imports.get(name, NN) or deprecates.get(name, NN)

645 if mod:

646 # importlib.import_module() implicitly sets sub-modules

647 # on this module as appropriate for direct imports (see

648 # note in the _lazy_import2.__doc__ above).

649 if mod.endswith(_DOT_): # import mod[.attr] as name

650 mod, _, attr = mod[:-1].rpartition(_DOT_)

651 else: # from mod import name

652 attr = name

653 try:

654 t = _DOT_(pack, mod)

655 imported = import_module(t, parent)

656 except ImportError:

657 # <https://GitHub.com/mrJean1/PyGeodesy/issues/76>

658 raise LazyImportError(_no_(_module_), txt=t)

659 t = getattr(imported, _p_a_c_k_a_g_e_, None)

660 if t not in subpacks: # invalid module package

661 raise LazyImportError(_DOT_(mod, _p_a_c_k_a_g_e_), t)

662 if attr: # get the attribute

663 imported = getattr(imported, attr, MISSING)

664 if imported is MISSING: # PYCHOK no cover

665 t = _DOT_(mod, attr)

666 # <https://GitHub.com/mrJean1/PyGeodesy/issues/76>

667 raise LazyAttributeError(_no_(_attribute_), txt=t)

668

669 elif name in (_a_l_l_,): # XXX '_d_i_r_', '_m_e_m_b_e_r_s_'?

670 imported = _ALL_INIT + tuple(imports.keys())

671 else: # PYCHOK no cover

672 t = _no_(_module_, _or_, _attribute_)

673 # <https://GitHub.com/mrJean1/PyGeodesy/issues/76>

674 raise LazyAttributeError(t, txt=_DOT_(parent, name))

675

676 setattr(package, name, imported)

677 if isLazy > 1:

678 t = NN(_lazily_imported__, _DOT_(parent, name))

679 if mod and _tailof(mod) != name:

680 t = NN(t, _from_DOT__, mod)

681 if isLazy > 2:

682 try: # see C{_caller3}

683 _, f, s = _caller3(2)

684 t = _SPACE_(t, _by_, f, _line_, s)

685 except ValueError:

686 pass

687 printf(t) # XXX print

688

689 return imported # __getattr__

690

691 global _lazy_attr

692 _lazy_attr = __getattr__

693

694 return package, __getattr__ # _lazy_import2

695

696

697# def _lazy_import_all(_name_):

698# '''(INTERNAL) Return a function mimicking C{from B{__name__} import *},

699# of all items, see .deprecated.__init__

700# '''

701# if _unlazy:

702# raise AssertionError(_COMMASPACE_(_name_, _not_(_DEPRECATED_)))

703#

704# _getattr = _lazy_attributes(_name_) # _name_.__getattr__

705# _import_start = _lazy_import_star(_name_, ALL_=_ALL_IMPORTS)

706#

707# def _import_all(attr, *dflt):

708# return _import_star(_name_) if attr == _a_l_l_ else \

709# _getattr(attr, *dflt)

710#

711# return _import_all

712

713

714 def _lazy_import_as(_name_):

715 '''(INTERNAL) Return a function to C{import B{__name__}.mod as mod}

716 I{of modules only}, see .deprecated, .rhumb or get an attribute

717 lazily exported by C{__name__}.

718 '''

719 if _unlazy:

720 return None

721

722 def _import_as(mod):

723 try:

724 return _ALL_MODS.getmodule(_DOT_(_name_, mod))

725 except ImportError:

726 return _lazy_attr(mod)

727

728 return _import_as

729

730

731# def _lazy_import_star(_name_, ALL_=_ALL_DEPRECATES):

732# '''(INTERNAL) Return a function to mimick C{from B{__name__} import *},

733# of all DEPRECATED items, see .deprecated, .testDeprecated

734# '''

735# if _unlazy:

736# raise AssertionError(_COMMASPACE_(_name_, _not_(_DEPRECATED_)))

737#

738# def _import_star(_into_):

739# '''Do C{from B{__name__} import *} inside module C{B{__into__}}.

740# '''

741# d = dict()

742# nm = _tailof(_name_)

743# _g = _ALL_MODS.getattr # pygeodesy.__getattr__

744# _h = _headof

745# for a, m in ALL_.items():

746# if _h(m) == nm:

747# try:

748# d[a] = _g(m, a)

749# except (AttributeError, ImportError):

750# pass

751# _sys.modules[_into_].__dict__.update(d)

752# return d.keys() # imported names

753#

754# return _import_star

755

756

757# def _lazy_subs(_name_, force=_FOR_DOCS, over=False):

758# '''(INTERNAL) Return the names of a package's sub-packages and

759# update the package's C{__dict__} accordingly.

760# '''

761# sm = dict()

762# if force and _name_ != '__main__':

763# nm = _tailof(_name_)

764# _a = _ALL_MODS.getattr

765# _m = _ALL_MODS.getmodule

766# d = _a(_name_, '__dict__', {})

767# for n in _a(_name_, _a_l_l_, ()):

768# try: # n is a class name, get its mod name

769# m = _a(_name_, n).__module__

770# n, s = m.split(_DOT_)[-2:]

771# if n == nm and s not in sm:

772# # like import m as s

773# m = _m(m)

774# sm[s] = m if over else d.get(s, m)

775# except (AttributeError, ImportError, ValueError) as x:

776# pass

777# d.update(sm)

778#

779# return _ALL_OTHER(*sm.values())

780

781

782 def _lazy_init2(pack):

783 '''(INTERNAL) Initialize lazy import and set globals C{isLazy} and C{_unLazy0}.

784

785 @arg pack: The name of the package (C{str}) performing the imports,

786 to help resolving relative imports, usually C{__package__}.

787

788 @return: 2-Tuple C{(package, parent)} with the importing C{package}

789 for easy reference within itself and its name aka the

790 C{parent}, same as B{C{pack}}.

791

792 @raise LazyImportError: Lazy import not supported or not enabled,

793 an import failed or the package name is

794 invalid or does not exist.

795

796 @note: Global C{isLazy} is set accordingly.

797 '''

798 global isLazy, _unLazy0

799

800 z = _getenv(_PYGEODESY_LAZY_IMPORT_, None)

801 if z is None: # _PYGEODESY_LAZY_IMPORT_ not set

802 isLazy = 1 # ... but only by default on 3.7

803 else:

804 z = z.strip() # like PYTHONVERBOSE et.al.

805 isLazy = int(z) if z.isdigit() else (1 if z else 0)

806

807 _unLazy0 = _unlazy or not isLazy # pre-3.7 or w/o lazy import

808

809 if isLazy < 1: # not enabled

810 raise LazyImportError(_PYGEODESY_LAZY_IMPORT_, repr(z), txt=_not_(_enabled_))

811 if _getenv('PYTHONVERBOSE', None): # PYCHOK no cover

812 isLazy += 1

813

814 try: # to initialize in Python 3+

815 package = import_module(pack)

816 parent = package.__spec__.parent # __spec__ only in Python 3.7+

817 if parent != pack: # assert

818 t = _COMMASPACE_(parent, _not_(pack)) # PYCHOK no cover

819 raise AttributeError(_EQUALSPACED_('parent', t))

820

821 except (AttributeError, ImportError) as x:

822 isLazy = False # failed

823 raise LazyImportError(_lazy_init2.__name__, pack, cause=x)

824

825 return package, parent

826

827

828 def _pairs(*args, **kwds): # in .ktm

829 # from pygeodesy.streprs import pairs

830 return _ALL_MODS.streprs.pairs(*args, **kwds)

831

832

833 def print_(*args, **nl_nt_prefix_end_file_flush_sep): # PYCHOK no cover

834 '''Python 3+ C{print}-like formatting and printing.

835

836 @arg args: Arguments to be converted to C{str} and joined by B{C{sep}}

837 (any C{type}, all positional).

838 @kwarg nl_nt_prefix_end_file_flush_sep: Keyword arguments C{B{nl}=0}

839 for the number of leading blank lines (C{int}), C{B{nt}=0}

840 the number of trailing blank lines (C{int}), C{B{prefix}=NN}

841 to be inserted before the formatted text (C{str}) and Python

842 3+ C{print} keyword arguments C{B{end}}, C{B{sep}}, C{B{file}}

843 and C{B{flush}}.

844

845 @return: Number of bytes written.

846 '''

847 return printf(NN, *args, **nl_nt_prefix_end_file_flush_sep)

848

849

850 def printf(fmt, *args, **nl_nt_prefix_end_file_flush_sep_kwds):

851 '''C{Printf-style} and Python 3+ C{print}-like formatting and printing.

852

853 @arg fmt: U{Printf-style<https://Docs.Python.org/3/library/stdtypes.html#

854 printf-style-string-formatting>} format specification (C{str}).

855 @arg args: Arguments to be formatted (any C{type}, all positional).

856 @kwarg nl_nt_prefix_end_file_flush_sep_kwds: Keyword arguments C{B{nl}=0}

857 for the number of leading blank lines (C{int}), C{B{nt}=0} the

858 number of trailing blank lines (C{int}), C{B{prefix}=NN} to

859 be inserted before the formatted text (C{str}) and Python 3+

860 C{print} keyword arguments C{B{end}}, C{B{sep}}, C{B{file}} and

861 C{B{flush}}. Any remaining C{B{kwds}} are U{printf-style

862 <https://Docs.Python.org/3/library/stdtypes.html#printf-style-string-formatting>}

863 keyword arguments to be formatted, I{iff no B{C{args}} are present}.

864

865 @return: Number of bytes written.

866 '''

867 b, e, s, f, fl, p, kwds = _xprint7(**nl_nt_prefix_end_file_flush_sep_kwds)

868 try:

869 if args:

870 t = (fmt % args) if fmt else s.join(map(str, args))

871 elif kwds: # PYCHOK no cover

872 t = (fmt % kwds) if fmt else s.join(_pairs(kwds, prec=p))

873 else: # PYCHOK no cover

874 t = fmt

875 except Exception as x:

876 _E, s = _ALL_MODS.errors._xError2(x)

877 unstr = _ALL_MODS.streprs.unstr

878 t = unstr(printf, fmt, *args, **nl_nt_prefix_end_file_flush_sep_kwds)

879 raise _E(s, txt=t, cause=x)

880 try:

881 n = f.write(NN(b, t, e))

882 except UnicodeEncodeError: # XXX only Windows

883 t = t.replace('\u2032', _QUOTE1_).replace('\u2033', _QUOTE2_)

884 n = f.write(NN(b, t, e))

885 if fl: # PYCHOK no cover

886 f.flush()

887 return n

888

889

890 def _xprint7(nl=0, nt=0, prec=6, prefix=NN, sep=_SPACE_, file=_sys.stdout,

891 end=_NL_, flush=False, **kwds):

892 '''(INTERNAL) Unravel the C{printf} and remaining keyword arguments.

893 '''

894 if nl > 0:

895 prefix = NN(_NL_ * nl, prefix)

896 if nt > 0:

897 end = NN(end, _NL_ * nt)

898 return prefix, end, sep, file, flush, prec, kwds

899

900

901# del _i, _i0, _intern

902

903 if __name__ == '__main__':

904

905 from timeit import timeit

906

907 def t1():

908 from pygeodesy.trf import RefFrame

909 return RefFrame

910

911 def t2():

912 return _ALL_MODS.trf.RefFrame

913

914 assert t1() is t2() # prime each

915

916 t1 = timeit(t1, number=1000000)

917 t2 = timeit(t2, number=1000000)

918 v = _Python_(_sys.version)

919 printf('%.8f import vs %.8f _ALL_MODS: %.3fX, %s', t1, t2, t2 / t1, v)

920 del t1, t2, v

921

922# python3.12 -m pygeodesy.lazily

923# 0.13352763 import vs 0.70804508 _ALL_MODS: 5.303X, Python 3.12.0

924

925# % python3.11 -W ignore -m pygeodesy.lazily

926# 0.37998008 import vs 0.79537812 _ALL_MODS: 2.093X, Python 3.11.5

927

928# % python3.10 -W ignore -m pygeodesy.lazily

929# 0.39046367 import vs 0.90492925 _ALL_MODS: 2.318X, Python 3.10.8

930

931# % python2 -m pygeodesy.lazily

932# 1.17563510 import vs 2.02626395 _ALL_MODS: 1.724X, Python 2.7.18

933

934# **) MIT License

935#

936# Copyright (C) 2018-2024 -- mrJean1 at Gmail -- All Rights Reserved.

937#

938# Permission is hereby granted, free of charge, to any person obtaining a

939# copy of this software and associated documentation files (the "Software"),

940# to deal in the Software without restriction, including without limitation

941# the rights to use, copy, modify, merge, publish, distribute, sublicense,

942# and/or sell copies of the Software, and to permit persons to whom the

943# Software is furnished to do so, subject to the following conditions:

944#

945# The above copyright notice and this permission notice shall be included

946# in all copies or substantial portions of the Software.

947#

948# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

949# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

950# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL

951# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR

952# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,

953# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

954# OTHER DEALINGS IN THE SOFTWARE.