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

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

43 from os.path import basename as _basename

44 import sys as _sys # in .basics._sizeof

45 try:

46 from importlib import import_module

47 except ImportError: # Python 2.6-

48 def import_module(name, *package):

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

50 raise LazyImportError(t, txt=_doesn_t_exist_)

51

52_a_l_l_ = '__all__' # .__main__

53__as__ = ' as '

54_FOR_DOCS = _getenv('PYGEODESY_FOR_DOCS', NN) # for epydoc ...

55_from_DOT__ = _SPACE_(NN, _from_, _DOT_)

56_i0 = () # PYCHOK empty tuple

57_init__all__ = _FOR_DOCS or _getenv('PYGEODESY_INIT__ALL__', _a_l_l_) == _a_l_l_ # PYCHOK expoted

58_lazily_ = 'lazily'

59_lazily_imported__ = _SPACE_(_HASH_, _lazily_, 'imported', NN)

60_p_a_c_k_a_g_e_ = '__package__'

61_PYGEODESY_GEOCONVERT_ = 'PYGEODESY_GEOCONVERT' # PYCHOK .mgrs, test.bases

62_PYGEODESY_GEODSOLVE_ = 'PYGEODESY_GEODSOLVE' # PYCHOK .geodsolve, test.bases

63_PYGEODESY_LAZY_IMPORT_ = 'PYGEODESY_LAZY_IMPORT'

64_PYGEODESY_RHUMBSOLVE_ = 'PYGEODESY_RHUMBSOLVE' # PYCHOK .rhumb.solve, test.bases

65_PYTHON_X_DEV = getattr(_sys, '_xoptions', {}).get('dev', # Python 3.2+

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

67_sys_version_info2 = _sys.version_info[:2] # in .basics, .fmath, ...

68_unlazy = _unLazy0 = _sys_version_info2 < (3, 7) # PYCHOK mod.__getattr__ 3.7+

69_WARNINGS_X_DEV = _getenv('PYGEODESY_WARNINGS', NN) and (

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

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

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

73

74

75 class LazyAttributeError(AttributeError):

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

77 '''

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

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

80

81

82 class LazyImportError(ImportError):

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

84 '''

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

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

87

88

89 class _Dict(dict):

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

91 '''

92 _name = NN

93

94 def __getattr__(self, attr):

95 try:

96 return self[attr]

97 except KeyError:

98 return dict.__getattr__(self, attr)

99

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

101# if attr in self:

102# self[attr] = value

103# else:

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

105

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

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

108

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

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

111 '''

112 if name in self:

113 sub = self[name] # duplicate OK

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

115 t = _DOT_(self._name, name)

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

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

118 raise AssertionError(t)

119 else:

120 self[name] = mod_

121

122 def _NAME(self, which):

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

124

125

126 class _NamedEnum_RO(dict):

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

128 '''

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

130

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

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

133

134 def __getattr__(self, attr):

135 try:

136 return self[attr]

137 except KeyError:

138 t = self._DOT_(attr)

139 raise LazyAttributeError(t, txt=_doesn_t_exist_)

140

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

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

143 raise LazyAttributeError(t, txt=_immutable_)

144

145 def enums(self):

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

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

148 n = m.replace(_UNDER_, _DOT_)

149 if n != m:

150 if m.startswith(_UNDER_):

151 t = None # skip _name= ...

152 else:

153 u = m.rstrip(_UNDER_)

154 if u != m:

155 u = len(u)

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

157 if isinstance(t, tuple):

158 yield n, t

159

160 def fill_D(self, _D, which):

161 # Fill C{_Dict _D}.

162 _D._NAME(which)

163 _a = _D.add

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

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

166 for a in t:

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

168 if as_: # import attr as attr_

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

170 else:

171 _a(a, m)

172 return _D

173

174

175 def _i(*names):

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

177 '''

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

179

180

181 def _ALL_ATTRS(*attrs):

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

183 '''

184 t = ()

185 for attr in attrs:

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

187 return t

188

189

190_ALL_INIT = _i(_pygeodesy_abspath_, _version_)

191

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

193_ALL_LAZY = _NamedEnum_RO(_name='_ALL_LAZY',

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

195 'AlbersEqualAreaCylindrical', 'AlbersEqualAreaNorth', 'AlbersEqualAreaSouth',

196 'AlbersError', 'Albers7Tuple'),

197 auxilats=_i(), # module only

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

199 'Equidistant', 'EquidistantExact', 'EquidistantGeodSolve', 'EquidistantKarney',

200 'Gnomonic', 'GnomonicExact', 'GnomonicGeodSolve', 'GnomonicKarney',

201 'LambertEqualArea', 'Orthographic', 'Stereographic',

202 'equidistant', 'gnomonic'),

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

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

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

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

207 'len2', 'map1', 'map2', 'neg', 'neg_',

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

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

210 'isBoolean'),

211 cartesianBase=_i(), # module only

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

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

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

215 'EasNorAziRk4Tuple', 'EasNorAziRkEqu6Tuple', 'LatLonAziRk4Tuple'),

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

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

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

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

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

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

222 'remainder'),

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

224# deprecated=_i(), # module only

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

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

229 'bearingDMS', 'clipDegrees', 'clipRadians', 'compassDMS', 'compassPoint',

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

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

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

233 'EcefSudano', 'Ecef9Tuple', 'EcefVeness', 'EcefYou'),

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

235 'elevation2', 'geoidHeight2'),

236 ellipsoidalBase=_i(), # module only

237 ellipsoidalBaseDI=_i(), # module only

238 ellipsoidalExact=_i(), # module only

239 ellipsoidalGeodSolve=_i(), # module only

240 ellipsoidalKarney=_i(), # module only

241 ellipsoidalNvector=_i(), # module only

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

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

244 'Ellipsoid', 'Ellipsoid2', 'Ellipsoids',

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

246 'a_f2b', 'a_f_2b', 'b_f2a', 'b_f_2a',

247 'e2f', 'e22f',

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

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

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

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

252 'NumPyError', 'LenError', 'LimitError', 'MGRSError',

253 'ParseError', 'PointsError', 'RangeError', 'RhumbError',

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

255 'crosserrors', 'exception_chaining', 'isError', 'itemsorted',

256 'limiterrors', 'rangerrors'),

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

258 'parseETM5', 'toEtm8'),

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

260 'bqrt', 'cbrt', 'cbrt2', 'euclid', 'euclid_',

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

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

263 'fpowers', 'fprod', 'frange', 'freduce', 'fremainder',

264 'hypot', 'hypot_', 'hypot1', 'hypot2', 'hypot2_',

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

266 formy=_i('Radical2Tuple',

267 'antipode', 'antipode_', 'bearing', 'bearing_',

268 'compassAngle', 'cosineForsytheAndoyerLambert', 'cosineForsytheAndoyerLambert_',

269 'cosineAndoyerLambert', 'cosineAndoyerLambert_', 'cosineLaw', 'cosineLaw_',

270 'equirectangular', 'equirectangular_', 'euclidean', 'euclidean_',

271 'excessAbc_', 'excessCagnoli_', 'excessGirard_', 'excessLHuilier_',

272 'excessKarney', 'excessKarney_', 'excessQuad', 'excessQuad_',

273 'flatLocal', 'flatLocal_', 'flatPolar', 'flatPolar_',

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

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

276 'latlon2n_xyz', 'normal', 'normal_', 'n_xyz2latlon', 'n_xyz2philam',

277 'opposing', 'opposing_', 'philam2n_xyz', 'radical2', 'rtp2xyz', 'rtp2xyz_',

278 'thomas', 'thomas_', 'vincentys', 'vincentys_', 'xyz2rtp', 'xyz2rtp_'),

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

280 'FrechetCosineAndoyerLambert', 'FrechetCosineForsytheAndoyerLambert',

281 'FrechetCosineLaw', 'FrechetDistanceTo', 'FrechetEquirectangular',

282 'FrechetEuclidean', 'FrechetExact', 'FrechetFlatLocal', 'FrechetFlatPolar',

283 'FrechetHaversine', 'FrechetHubeny', 'FrechetKarney', 'FrechetThomas',

284 'FrechetVincentys', 'Frechet6Tuple',

285 'frechet_'),

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

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

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

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

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

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

292 'GeodesicAreaExact', 'GeodesicExact', 'GeodesicLineExact', 'PolygonArea'),

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

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

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

296 'PGMError', 'GeoidHeight5Tuple'),

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

298 'HausdorffCosineAndoyerLambert', 'HausdorffCosineForsytheAndoyerLambert',

299 'HausdorffCosineLaw', 'HausdorffDistanceTo', 'HausdorffEquirectangular',

300 'HausdorffEuclidean', 'HausdorffExact', 'HausdorffFlatLocal', 'HausdorffFlatPolar',

301 'HausdorffHaversine', 'HausdorffHubeny', 'HausdorffKarney', 'HausdorffThomas',

302 'HausdorffVincentys', 'Hausdorff6Tuple',

303 'hausdorff_', 'randomrangenerator'),

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

305 'HeightIDWcosineAndoyerLambert', 'HeightIDWcosineForsytheAndoyerLambert',

306 'HeightIDWcosineLaw', 'HeightIDWdistanceTo', 'HeightIDWequirectangular',

307 'HeightIDWeuclidean', 'HeightIDWexact', 'HeightIDWflatLocal', 'HeightIDWflatPolar',

308 'HeightIDWhaversine', 'HeightIDWhubeny', 'HeightIDWkarney', 'HeightIDWthomas',

309 'HeightIDWvincentys', 'HeightLinear', 'HeightLSQBiSpline', 'HeightSmoothBiSpline'),

310 interns=_interns__all__,

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

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

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

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

315 latlonBase=_i(), # module only

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

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

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

319 'LocalCartesian', 'LocalError', 'Ltp', 'tyr3d'),

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

321 'ChLVEN2Tuple', 'ChLV9Tuple', 'ChLVYX2Tuple', 'ChLVyx2Tuple',

322 'Enu', 'Enu4Tuple', 'Footprint5Tuple', 'Local9Tuple', 'Los',

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

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

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

326 'nameof', 'notImplemented', 'notOverloaded'),

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

328 'Destination2Tuple', 'Destination3Tuple',

329 'Distance2Tuple', 'Distance3Tuple', 'Distance4Tuple',

330 'EasNor2Tuple', 'EasNor3Tuple', 'Forward4Tuple', 'Intersection3Tuple',

331 'LatLon2Tuple', 'LatLon3Tuple', 'LatLon4Tuple',

332 'LatLonDatum3Tuple', 'LatLonDatum5Tuple',

333 'LatLonPrec3Tuple', 'LatLonPrec5Tuple',

334 'NearestOn2Tuple', 'NearestOn3Tuple', 'NearestOn6Tuple', 'NearestOn8Tuple',

335 'PhiLam2Tuple', 'PhiLam3Tuple', 'PhiLam4Tuple', 'Point3Tuple', 'Points2Tuple',

336 'Reverse4Tuple', 'Triangle7Tuple', 'Triangle8Tuple', 'Trilaterate5Tuple',

337 'UtmUps2Tuple', 'UtmUps5Tuple', 'UtmUps8Tuple', 'UtmUpsLatLon5Tuple',

338 'Vector2Tuple', 'Vector3Tuple', 'Vector4Tuple'),

339 nvectorBase=_i(_NorthPole_, _SouthPole_),

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

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

342 _areaOf_, 'boundsOf', 'centroidOf', 'fractional',

343 _isclockwise_, 'isconvex', 'isconvex_', 'isenclosedBy', _ispolar_,

344 'luneOf', 'nearestOn5', 'perimeterOf', 'quadOf'),

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

346 'deprecated_class', 'deprecated_function', 'deprecated_method',

347 'deprecated_Property_RO', 'deprecated_property_RO', 'DeprecationWarnings'),

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

349 'TriAngle5Tuple', 'TriSide2Tuple', 'TriSide4Tuple',

350 'cassini', 'collins5', 'pierlot', 'pierlotx', 'tienstra7',

351 'snellius3', 'wildberger3',

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

353 rhumb=_i(), # module only

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

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

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

357 sphericalBase=_i(), # module only

358 sphericalNvector=_i(), # module only

359 sphericalTrigonometry=_i(), # module only

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

361 solveBase=_i(), # module only

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

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

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

365 'date2epoch', 'epoch2date', 'trfXform'),

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

367 'JacobiConformal', 'JacobiConformalSpherical',

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

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

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

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

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

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

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

375 'Radius_', 'Scalar', 'Scalar_', 'Zone'),

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

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

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

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

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

381# 'degrees2grades as degrees2gons',

382 'fathom2m', 'ft2m', 'furlong2m',

383 'grades', 'grades400', 'grades2degrees', 'grades2radians',

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

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

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

387 'radians', 'radiansPI', 'radiansPI2', 'radiansPI_2', 'radians2m',

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

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

390 'unroll180', 'unrollPI',

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

392 'yard2m'),

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

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

395 'utmupsValidate', 'utmupsValidateOK', 'utmupsZoneBand5'),

396 utmupsBase=_i(), # module only

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

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

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

400 'trilaterate2d2', 'trilaterate3d2'),

401 vector3dBase=_i(), # module only

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

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

404

405_ALL_DEPRECATED = _NamedEnum_RO(_name='_ALL_DEPRECATED',

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

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

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

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

410 'HeightIDW', 'HeightIDW2', 'HeightIDW3',

411 'LatLonExact4Tuple', 'NearestOn4Tuple', 'Ned3Tuple',

412 'RefFrameError', 'Rhumb7Tuple', 'RhumbOrder2Tuple',

413 'Transform7Tuple', 'TriAngle4Tuple', 'UtmUps4Tuple'),

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

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

416 'Datums', 'Ellipsoids', 'Transforms',

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

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

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

420 'decodeEPSG2', 'encodeEPSG', 'enStr2', 'equirectangular3',

421 'excessAbc', 'excessGirard', 'excessLHuilier',

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

423 'inStr', 'isenclosedby', 'istuplist',

424 'joined', 'joined_', 'nearestOn3', 'nearestOn4',

425 'parseUTM', 'perimeterof', 'polygon', 'scalar', 'simplify2',

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

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

428

429

430 class _ALL_MODS(object):

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

432 '''

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

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

435

436 def __getattr__(self, name):

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

438

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

440

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

442

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

444 '''

445 m = self.getmodule(name)

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

447 getattr(m, _tailof(name))

448

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

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

451 raise AttributeError(_COLONSPACE_(t, _immutable_))

452

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

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

455

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

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

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

459

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

461

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

463

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

465 '''

466 v = self.getmodule(mod)

467 if attr_dflt:

468 v = getattr(v, *attr_dflt)

469 return v

470

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

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

473

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

475

476 @return: The C{pygeodesy} module.

477

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

479 '''

480 if _headof(name) != parent:

481 name = _DOT_(parent, name)

482 try:

483 return _sys.modules[name]

484 except KeyError:

485 return import_module(name, parent)

486

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

488 '''Yield the modules imported so far.

489 '''

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

491 yield n, m

492

493_ALL_MODS = _ALL_MODS() # PYCHOK singleton

494

495__all__ = _ALL_LAZY.lazily

496__version__ = '23.12.08'

497

498

499 def _ALL_OTHER(*objs):

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

501 '''

502 _interns = _ALL_MODS.interns # from pygeodesy import interns

503

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

505 n = _tailof(_dunder_nameof(o))

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

507 return getattr(_interns, i, n)

508

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

510

511

512 if _FOR_DOCS:

513 _ALL_DOCS = _ALL_OTHER

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

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

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

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

518 # too much internal documentation.

519 else:

520 def _ALL_DOCS(*unused):

521 return ()

522

523

524 def _all_deprecates():

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

526 '''

527 _D = _ALL_DEPRECATES

528 if not _D:

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

530 return _D

531

532_ALL_DEPRECATES = _Dict() # PYCHOK _ALL_DEPRECATED.imports()

533

534

535 def _all_imports():

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

537 '''

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

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

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

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

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

543 _D = _ALL_IMPORTS

544 if not _D:

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

546 return _D

547

548_ALL_IMPORTS = _Dict() # PYCHOK _ALL_LAZY.imports()

549

550

551 def _all_missing2(_all_):

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

553 '''

554 def _diff(one, two):

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

556

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

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

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

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

561

562

563 def _attrof(attr_as): # .testDeprecated

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

565 return as_ or a_.rstrip(_DOT_)

566

567

568 def _caller3(up): # in .named

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

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

571 '''

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

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

574 f = _sys._getframe(up + 1)

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

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

577 f.f_lineno) # line number

578

579

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

581 pass

582

583

584# def _lazy_attributes(_name_):

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

586# on lazily imported modules and sub-modules.

587# '''

588# if _unlazy:

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

590#

591# def _getattr(attr, *dflt):

592# try: # a module name

593# return _ALL_MODS.getmodule(attr)

594# except (AttributeError, ImportError):

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

596#

597# return _getattr

598

599

600 def _lazy_import2(pack): # MCCABE 14

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

602

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

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

605

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

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

608 C{package.__getattr__}.

609

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

611 invalid or does not exist.

612

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

614 an import failed.

615

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

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

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

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

620 causing a C{ModuleNotFoundError}.

621

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

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

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

625 '''

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

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

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

629

630 package, parent = _lazy_init2(pack) # _pygeodesy_

631

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

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

634 imports = _all_imports()

635 deprecates = _all_deprecates()

636

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

638 # only called once for each undefined pygeodesy attribute

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

640 if mod:

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

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

643 # note in the _lazy_import2.__doc__ above).

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

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

646 else: # from mod import name

647 attr = name

648 try:

649 t = _DOT_(pack, mod)

650 imported = import_module(t, parent)

651 except ImportError:

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

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

654 t = getattr(imported, _p_a_c_k_a_g_e_, None)

655 if t not in subpacks: # invalid module package

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

657 if attr: # get the attribute

658 imported = getattr(imported, attr, MISSING)

659 if imported is MISSING: # PYCHOK no cover

660 t = _DOT_(mod, attr)

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

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

663

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

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

666 else: # PYCHOK no cover

667 t = _no_(_module_, _or_, _attribute_)

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

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

670

671 setattr(package, name, imported)

672 if isLazy > 1:

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

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

675 t = NN(t, _from_DOT__, mod)

676 if isLazy > 2:

677 try: # see C{_caller3}

678 _, f, s = _caller3(2)

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

680 except ValueError:

681 pass

682 printf(t) # XXX print

683

684 return imported # __getattr__

685

686 global _lazy_attr

687 _lazy_attr = __getattr__

688

689 return package, __getattr__ # _lazy_import2

690

691

692# def _lazy_import_all(_name_):

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

694# of all items, see .deprecated.__init__

695# '''

696# if _unlazy:

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

698#

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

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

701#

702# def _import_all(attr, *dflt):

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

704# _getattr(attr, *dflt)

705#

706# return _import_all

707

708

709 def _lazy_import_as(_name_):

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

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

712 lazily exported by C{__name__}.

713 '''

714 if _unlazy:

715 return None

716

717 def _import_as(mod):

718 try:

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

720 except ImportError:

721 return _lazy_attr(mod)

722

723 return _import_as

724

725

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

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

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

729# '''

730# if _unlazy:

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

732#

733# def _import_star(_into_):

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

735# '''

736# d = dict()

737# nm = _tailof(_name_)

738# _g = _ALL_MODS.getattr # pygeodesy.__getattr__

739# _h = _headof

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

741# if _h(m) == nm:

742# try:

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

744# except (AttributeError, ImportError):

745# pass

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

747# return d.keys() # imported names

748#

749# return _import_star

750

751

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

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

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

755# '''

756# sm = dict()

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

758# nm = _tailof(_name_)

759# _a = _ALL_MODS.getattr

760# _m = _ALL_MODS.getmodule

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

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

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

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

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

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

767# # like import m as s

768# m = _m(m)

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

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

771# pass

772# d.update(sm)

773#

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

775

776

777 def _lazy_init2(pack):

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

779

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

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

782

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

784 for easy reference within itself and its name aka the

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

786

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

788 an import failed or the package name is

789 invalid or does not exist.

790

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

792 '''

793 global isLazy, _unLazy0

794

795 z = _getenv(_PYGEODESY_LAZY_IMPORT_, None)

796 if z is None: # _PYGEODESY_LAZY_IMPORT_ not set

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

798 else:

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

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

801

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

803

804 if isLazy < 1: # not enabled

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

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

807 isLazy += 1

808

809 try: # to initialize in Python 3+

810 package = import_module(pack)

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

812 if parent != pack: # assert

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

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

815

816 except (AttributeError, ImportError) as x:

817 isLazy = False # failed

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

819

820 return package, parent

821

822

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

824 # from pygeodesy.streprs import pairs

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

826

827

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

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

830

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

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

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

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

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

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

837 3+ C{print} keyword arguments C{B{end}}, C{B{sep}}, C{B{file}}

838 and C{B{flush}}.

839

840 @return: Number of bytes written.

841 '''

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

843

844

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

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

847

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

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

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

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

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

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

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

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

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

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

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

859

860 @return: Number of bytes written.

861 '''

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

863 try:

864 if args:

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

866 elif kwds: # PYCHOK no cover

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

868 else: # PYCHOK no cover

869 t = fmt

870 except Exception as x:

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

872 unstr = _ALL_MODS.streprs.unstr

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

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

875 try:

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

877 except UnicodeEncodeError: # XXX only Windows

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

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

880 if fl: # PYCHOK no cover

881 f.flush()

882 return n

883

884

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

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

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

888 '''

889 if nl > 0:

890 prefix = NN(_NL_ * nl, prefix)

891 if nt > 0:

892 end = NN(end, _NL_ * nt)

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

894

895

896# del _i, _i0, _intern

897

898 if __name__ == '__main__':

899

900 from timeit import timeit

901

902 def t1():

903 from pygeodesy.trf import RefFrame

904 return RefFrame

905

906 def t2():

907 return _ALL_MODS.trf.RefFrame

908

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

910

911 t1 = timeit(t1, number=1000000)

912 t2 = timeit(t2, number=1000000)

913 v = _Python_(_sys.version)

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

915 del t1, t2, v

916

917# python3.12 -m pygeodesy.lazily

918# 0.13352763 import vs 0.70804508 _ALL_MODS: 5.303X, Python 3.12.0

919

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

921# 0.37998008 import vs 0.79537812 _ALL_MODS: 2.093X, Python 3.11.5

922

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

924# 0.39046367 import vs 0.90492925 _ALL_MODS: 2.318X, Python 3.10.8

925

926# % python2 -m pygeodesy.lazily

927# 1.17563510 import vs 2.02626395 _ALL_MODS: 1.724X, Python 2.7.18

928

929# **) MIT License

930#

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

932#

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

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

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

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

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

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

939#

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

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

942#

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

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

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

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

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

949# OTHER DEALINGS IN THE SOFTWARE.