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', 'itemsorted',

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', 'limiterrors', 'rangerrors'),

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

258 'parseETM5', 'toEtm8'),

259 fmath=_i('Fdot', 'Fhorner', 'Fhypot', 'Fpolynomial', 'Fpowers', 'Fcbrt', 'Froot', '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', 'frandoms', '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',

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

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', 'DivMod2Tuple', '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('ADict',

326 '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('RefFrame', 'RefFrames', 'TransformXform', 'TRFXform', 'TRFXform7Tuple',

366 'date2epoch', 'epoch2date', 'trfTransform0', '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', 'Fn_rt',

411 'HeightIDW', 'HeightIDW2', 'HeightIDW3', 'Helmert7Tuple',

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',

428 'unsign0', 'unStr', 'utmZoneBand2'),

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

430

431

432 class _ALL_MODS(object):

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

434 '''

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

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

437

438 def __getattr__(self, name):

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

440

441 @arg name: Un/qualified module or qualified attribute name (C{str}).

442

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

444

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

446 '''

447 try: # most likely ... module is already imported

448 return _sys.modules[_DOT_(_pygeodesy_, name)]

449 except KeyError:

450 pass

451

452 m = self.getmodule(name)

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

454 getattr(m, _tailof(name))

455

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

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

458 raise AttributeError(_COLONSPACE_(t, _immutable_))

459

460 def getattr(self, name, *attr_dflt): # , parent=_pygeodesy_

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

462

463 @arg name: Un/qualified module name (C{str}).

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

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

466

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

468

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

470

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

472 '''

473 v = self.getmodule(name)

474 if attr_dflt:

475 v = getattr(v, *attr_dflt)

476 return v

477

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

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

480

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

482

483 @return: The C{pygeodesy} module.

484

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

486 '''

487 if _headof(name) != parent:

488 name = _DOT_(parent, name)

489 try:

490 return _sys.modules[name]

491 except KeyError:

492 return import_module(name, parent)

493

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

495 '''Yield the modules imported so far.

496 '''

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

498 yield n, m

499

500 @property # property_RO

501 def name(self):

502 return self.__class__.__name__

503

504_ALL_MODS = _ALL_MODS() # PYCHOK singleton

505

506__all__ = _ALL_LAZY.lazily

507__version__ = '24.04.22'

508

509

510 def _ALL_OTHER(*objs):

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

512 '''

513 _interns = _ALL_MODS.interns # from pygeodesy import interns

514

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

516 n = _tailof(_dunder_nameof(o))

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

518 return getattr(_interns, i, n)

519

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

521

522

523 if _FOR_DOCS:

524 _ALL_DOCS = _ALL_OTHER

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

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

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

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

529 # too much internal documentation.

530 else:

531 def _ALL_DOCS(*unused):

532 return ()

533

534

535 def _all_deprecates():

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

537 '''

538 _D = _ALL_DEPRECATES

539 if not _D:

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

541 return _D

542

543_ALL_DEPRECATES = _Dict() # PYCHOK _ALL_DEPRECATED.imports()

544

545

546 def _all_imports():

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

548 '''

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

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

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

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

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

554 _D = _ALL_IMPORTS

555 if not _D:

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

557 return _D

558

559_ALL_IMPORTS = _Dict() # PYCHOK _ALL_LAZY.imports()

560

561

562 def _all_missing2(_all_):

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

564 '''

565 def _diff(one, two):

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

567

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

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

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

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

572

573

574 def _attrof(attr_as): # .testDeprecated

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

576 return as_ or a_.rstrip(_DOT_)

577

578

579 def _caller3(up): # in .named

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

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

582 '''

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

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

585 f = _sys._getframe(up + 1)

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

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

588 f.f_lineno) # line number

589

590

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

592 pass

593

594

595# def _lazy_attributes(_name_):

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

597# on lazily imported modules and sub-modules.

598# '''

599# if _unlazy:

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

601#

602# def _getattr(attr, *dflt):

603# try: # a module name

604# return _ALL_MODS.getmodule(attr)

605# except (AttributeError, ImportError):

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

607#

608# return _getattr

609

610

611 def _lazy_import2(pack): # MCCABE 14

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

613

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

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

616

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

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

619 C{package.__getattr__}.

620

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

622 invalid or does not exist.

623

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

625 an import failed.

626

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

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

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

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

631 causing a C{ModuleNotFoundError}.

632

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

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

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

636 '''

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

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

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

640

641 package, parent = _lazy_init2(pack) # _pygeodesy_

642

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

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

645 imports = _all_imports()

646 deprecates = _all_deprecates()

647

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

649 # only called once for each undefined pygeodesy attribute

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

651 if mod:

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

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

654 # note in the _lazy_import2.__doc__ above).

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

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

657 else: # from mod import name

658 attr = name

659 try:

660 t = _DOT_(pack, mod)

661 imported = import_module(t, parent)

662 except ImportError:

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

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

665 t = getattr(imported, _p_a_c_k_a_g_e_, None)

666 if t not in subpacks: # invalid module package

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

668 if attr: # get the attribute

669 imported = getattr(imported, attr, MISSING)

670 if imported is MISSING: # PYCHOK no cover

671 t = _DOT_(mod, attr)

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

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

674

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

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

677 else: # PYCHOK no cover

678 t = _no_(_module_, _or_, _attribute_)

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

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

681

682 setattr(package, name, imported)

683 if isLazy > 1:

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

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

686 t = NN(t, _from_DOT__, mod)

687 if isLazy > 2:

688 try: # see C{_caller3}

689 _, f, s = _caller3(2)

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

691 except ValueError:

692 pass

693 printf(t) # XXX print

694

695 return imported # __getattr__

696

697 global _lazy_attr

698 _lazy_attr = __getattr__

699

700 return package, __getattr__ # _lazy_import2

701

702

703# def _lazy_import_all(_name_):

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

705# of all items, see .deprecated.__init__

706# '''

707# if _unlazy:

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

709#

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

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

712#

713# def _import_all(attr, *dflt):

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

715# _getattr(attr, *dflt)

716#

717# return _import_all

718

719

720 def _lazy_import_as(_name_):

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

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

723 lazily exported by C{__name__}.

724 '''

725 if _unlazy:

726 return None

727

728 def _import_as(mod):

729 try:

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

731 except ImportError:

732 return _lazy_attr(mod)

733

734 return _import_as

735

736

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

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

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

740# '''

741# if _unlazy:

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

743#

744# def _import_star(_into_):

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

746# '''

747# d = dict()

748# nm = _tailof(_name_)

749# _g = _ALL_MODS.getattr # pygeodesy.__getattr__

750# _h = _headof

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

752# if _h(m) == nm:

753# try:

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

755# except (AttributeError, ImportError):

756# pass

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

758# return d.keys() # imported names

759#

760# return _import_star

761

762

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

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

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

766# '''

767# sm = dict()

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

769# nm = _tailof(_name_)

770# _a = _ALL_MODS.getattr

771# _m = _ALL_MODS.getmodule

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

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

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

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

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

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

778# # like import m as s

779# m = _m(m)

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

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

782# pass

783# d.update(sm)

784#

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

786

787

788 def _lazy_init2(pack):

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

790

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

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

793

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

795 for easy reference within itself and its name aka the

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

797

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

799 an import failed or the package name is

800 invalid or does not exist.

801

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

803 '''

804 global isLazy, _unLazy0

805

806 z = _getenv(_PYGEODESY_LAZY_IMPORT_, None)

807 if z is None: # _PYGEODESY_LAZY_IMPORT_ not set

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

809 else:

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

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

812

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

814

815 if isLazy < 1: # not enabled

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

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

818 isLazy += 1

819

820 try: # to initialize in Python 3+

821 package = import_module(pack)

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

823 if parent != pack: # assert

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

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

826

827 except (AttributeError, ImportError) as x:

828 isLazy = False # failed

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

830

831 return package, parent

832

833

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

835 # from pygeodesy.streprs import pairs

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

837

838

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

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

841

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

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

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

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

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

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

848 3+ C{print} keyword arguments C{B{end}}, C{B{sep}}, C{B{file}}

849 and C{B{flush}}.

850

851 @return: Number of bytes written.

852 '''

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

854

855

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

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

858

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

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

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

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

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

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

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

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

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

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

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

870

871 @return: Number of bytes written.

872 '''

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

874 try:

875 if args:

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

877 elif kwds: # PYCHOK no cover

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

879 else: # PYCHOK no cover

880 t = fmt

881 except Exception as x:

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

883 unstr = _ALL_MODS.streprs.unstr

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

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

886 try:

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

888 except UnicodeEncodeError: # XXX only Windows

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

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

891 if fl: # PYCHOK no cover

892 f.flush()

893 return n

894

895

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

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

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

899 '''

900 if nl > 0:

901 prefix = NN(_NL_ * nl, prefix)

902 if nt > 0:

903 end = NN(end, _NL_ * nt)

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

905

906

907# del _i, _i0, _intern

908

909 if __name__ == '__main__':

910

911 from timeit import timeit

912

913 def t1():

914 from pygeodesy.trf import RefFrame

915 return RefFrame

916

917 def t2():

918 return _ALL_MODS.trf.RefFrame

919

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

921

922 t1 = timeit(t1, number=1000000)

923 t2 = timeit(t2, number=1000000)

924 v = _Python_(_sys.version)

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

926 del t1, t2, v

927

928# python3.12 -m pygeodesy.lazily

929# 0.13352763 import vs 0.70804508 _ALL_MODS: 5.303X, Python 3.12.0

930

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

932# 0.37998008 import vs 0.79537812 _ALL_MODS: 2.093X, Python 3.11.5

933

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

935# 0.39046367 import vs 0.90492925 _ALL_MODS: 2.318X, Python 3.10.8

936

937# % python2 -m pygeodesy.lazily

938# 1.17563510 import vs 2.02626395 _ALL_MODS: 1.724X, Python 2.7.18

939

940# **) MIT License

941#

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

943#

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

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

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

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

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

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

950#

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

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

953#

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

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

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

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

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

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

960# OTHER DEALINGS IN THE SOFTWARE.