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('ADict',

327 'callername', 'classname', 'classnaming', 'modulename',

328 'nameof', 'notImplemented', 'notOverloaded'),

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

330 'Destination2Tuple', 'Destination3Tuple',

331 'Distance2Tuple', 'Distance3Tuple', 'Distance4Tuple',

332 'EasNor2Tuple', 'EasNor3Tuple', 'Forward4Tuple', 'Intersection3Tuple',

333 'LatLon2Tuple', 'LatLon3Tuple', 'LatLon4Tuple',

334 'LatLonDatum3Tuple', 'LatLonDatum5Tuple',

335 'LatLonPrec3Tuple', 'LatLonPrec5Tuple',

336 'NearestOn2Tuple', 'NearestOn3Tuple', 'NearestOn6Tuple', 'NearestOn8Tuple',

337 'PhiLam2Tuple', 'PhiLam3Tuple', 'PhiLam4Tuple', 'Point3Tuple', 'Points2Tuple',

338 'Reverse4Tuple', 'Triangle7Tuple', 'Triangle8Tuple', 'Trilaterate5Tuple',

339 'UtmUps2Tuple', 'UtmUps5Tuple', 'UtmUps8Tuple', 'UtmUpsLatLon5Tuple',

340 'Vector2Tuple', 'Vector3Tuple', 'Vector4Tuple'),

341 nvectorBase=_i(_NorthPole_, _SouthPole_),

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

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

344 _areaOf_, 'boundsOf', 'centroidOf', 'fractional',

345 _isclockwise_, 'isconvex', 'isconvex_', 'isenclosedBy', _ispolar_,

346 'luneOf', 'nearestOn5', 'perimeterOf', 'quadOf'),

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

348 'deprecated_class', 'deprecated_function', 'deprecated_method',

349 'deprecated_Property_RO', 'deprecated_property_RO', 'DeprecationWarnings'),

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

351 'TriAngle5Tuple', 'TriSide2Tuple', 'TriSide4Tuple',

352 'cassini', 'collins5', 'pierlot', 'pierlotx', 'tienstra7',

353 'snellius3', 'wildberger3',

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

355 rhumb=_i(), # module only

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

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

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

359 sphericalBase=_i(), # module only

360 sphericalNvector=_i(), # module only

361 sphericalTrigonometry=_i(), # module only

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

363 solveBase=_i(), # module only

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

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

366 trf=_i('RefFrame', 'RefFrames', 'TransformXform', 'TRFXform', 'TRFXform7Tuple',

367 'date2epoch', 'epoch2date', 'trfTransform0', 'trfXform'),

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

369 'JacobiConformal', 'JacobiConformalSpherical',

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

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

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

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

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

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

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

377 'Radius_', 'Scalar', 'Scalar_', 'Zone'),

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

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

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

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

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

383# 'degrees2grades as degrees2gons',

384 'fathom2m', 'ft2m', 'furlong2m',

385 'grades', 'grades400', 'grades2degrees', 'grades2radians',

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

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

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

389 'radians', 'radiansPI', 'radiansPI2', 'radiansPI_2', 'radians2m',

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

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

392 'unroll180', 'unrollPI',

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

394 'yard2m'),

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

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

397 'utmupsValidate', 'utmupsValidateOK', 'utmupsZoneBand5'),

398 utmupsBase=_i(), # module only

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

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

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

402 'trilaterate2d2', 'trilaterate3d2'),

403 vector3dBase=_i(), # module only

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

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

406

407_ALL_DEPRECATED = _NamedEnum_RO(_name='_ALL_DEPRECATED',

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

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

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

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

412 'HeightIDW', 'HeightIDW2', 'HeightIDW3', 'Helmert7Tuple',

413 'LatLonExact4Tuple', 'NearestOn4Tuple', 'Ned3Tuple',

414 'RefFrameError', 'Rhumb7Tuple', 'RhumbOrder2Tuple',

415 'Transform7Tuple', 'TriAngle4Tuple', 'UtmUps4Tuple'),

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

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

418 'Datums', 'Ellipsoids', 'Transforms',

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

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

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

422 'decodeEPSG2', 'encodeEPSG', 'enStr2', 'equirectangular3',

423 'excessAbc', 'excessGirard', 'excessLHuilier',

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

425 'inStr', 'isenclosedby', 'istuplist',

426 'joined', 'joined_', 'nearestOn3', 'nearestOn4',

427 'parseUTM', 'perimeterof', 'polygon', 'scalar', 'simplify2',

428 'tienstra', 'toUtm', 'trfTransforms', 'triAngle4',

429 'unsign0', 'unStr', 'utmZoneBand2'),

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

431

432

433 class _ALL_MODS(object):

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

435 '''

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

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

438

439 def __getattr__(self, name):

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

441

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

443

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

445

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

447 '''

448 m = self.getmodule(name)

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

450 getattr(m, _tailof(name))

451

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

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

454 raise AttributeError(_COLONSPACE_(t, _immutable_))

455

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

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

458

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

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

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

462

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

464

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

466

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

468 '''

469 v = self.getmodule(mod)

470 if attr_dflt:

471 v = getattr(v, *attr_dflt)

472 return v

473

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

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

476

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

478

479 @return: The C{pygeodesy} module.

480

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

482 '''

483 if _headof(name) != parent:

484 name = _DOT_(parent, name)

485 try:

486 return _sys.modules[name]

487 except KeyError:

488 return import_module(name, parent)

489

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

491 '''Yield the modules imported so far.

492 '''

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

494 yield n, m

495

496 @property # property_RO

497 def name(self):

498 return self.__class__.__name__

499

500_ALL_MODS = _ALL_MODS() # PYCHOK singleton

501

502__all__ = _ALL_LAZY.lazily

503__version__ = '24.02.02'

504

505

506 def _ALL_OTHER(*objs):

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

508 '''

509 _interns = _ALL_MODS.interns # from pygeodesy import interns

510

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

512 n = _tailof(_dunder_nameof(o))

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

514 return getattr(_interns, i, n)

515

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

517

518

519 if _FOR_DOCS:

520 _ALL_DOCS = _ALL_OTHER

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

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

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

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

525 # too much internal documentation.

526 else:

527 def _ALL_DOCS(*unused):

528 return ()

529

530

531 def _all_deprecates():

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

533 '''

534 _D = _ALL_DEPRECATES

535 if not _D:

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

537 return _D

538

539_ALL_DEPRECATES = _Dict() # PYCHOK _ALL_DEPRECATED.imports()

540

541

542 def _all_imports():

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

544 '''

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

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

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

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

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

550 _D = _ALL_IMPORTS

551 if not _D:

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

553 return _D

554

555_ALL_IMPORTS = _Dict() # PYCHOK _ALL_LAZY.imports()

556

557

558 def _all_missing2(_all_):

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

560 '''

561 def _diff(one, two):

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

563

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

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

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

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

568

569

570 def _attrof(attr_as): # .testDeprecated

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

572 return as_ or a_.rstrip(_DOT_)

573

574

575 def _caller3(up): # in .named

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

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

578 '''

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

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

581 f = _sys._getframe(up + 1)

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

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

584 f.f_lineno) # line number

585

586

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

588 pass

589

590

591# def _lazy_attributes(_name_):

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

593# on lazily imported modules and sub-modules.

594# '''

595# if _unlazy:

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

597#

598# def _getattr(attr, *dflt):

599# try: # a module name

600# return _ALL_MODS.getmodule(attr)

601# except (AttributeError, ImportError):

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

603#

604# return _getattr

605

606

607 def _lazy_import2(pack): # MCCABE 14

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

609

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

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

612

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

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

615 C{package.__getattr__}.

616

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

618 invalid or does not exist.

619

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

621 an import failed.

622

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

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

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

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

627 causing a C{ModuleNotFoundError}.

628

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

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

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

632 '''

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

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

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

636

637 package, parent = _lazy_init2(pack) # _pygeodesy_

638

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

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

641 imports = _all_imports()

642 deprecates = _all_deprecates()

643

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

645 # only called once for each undefined pygeodesy attribute

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

647 if mod:

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

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

650 # note in the _lazy_import2.__doc__ above).

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

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

653 else: # from mod import name

654 attr = name

655 try:

656 t = _DOT_(pack, mod)

657 imported = import_module(t, parent)

658 except ImportError:

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

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

661 t = getattr(imported, _p_a_c_k_a_g_e_, None)

662 if t not in subpacks: # invalid module package

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

664 if attr: # get the attribute

665 imported = getattr(imported, attr, MISSING)

666 if imported is MISSING: # PYCHOK no cover

667 t = _DOT_(mod, attr)

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

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

670

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

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

673 else: # PYCHOK no cover

674 t = _no_(_module_, _or_, _attribute_)

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

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

677

678 setattr(package, name, imported)

679 if isLazy > 1:

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

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

682 t = NN(t, _from_DOT__, mod)

683 if isLazy > 2:

684 try: # see C{_caller3}

685 _, f, s = _caller3(2)

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

687 except ValueError:

688 pass

689 printf(t) # XXX print

690

691 return imported # __getattr__

692

693 global _lazy_attr

694 _lazy_attr = __getattr__

695

696 return package, __getattr__ # _lazy_import2

697

698

699# def _lazy_import_all(_name_):

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

701# of all items, see .deprecated.__init__

702# '''

703# if _unlazy:

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

705#

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

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

708#

709# def _import_all(attr, *dflt):

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

711# _getattr(attr, *dflt)

712#

713# return _import_all

714

715

716 def _lazy_import_as(_name_):

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

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

719 lazily exported by C{__name__}.

720 '''

721 if _unlazy:

722 return None

723

724 def _import_as(mod):

725 try:

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

727 except ImportError:

728 return _lazy_attr(mod)

729

730 return _import_as

731

732

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

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

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

736# '''

737# if _unlazy:

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

739#

740# def _import_star(_into_):

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

742# '''

743# d = dict()

744# nm = _tailof(_name_)

745# _g = _ALL_MODS.getattr # pygeodesy.__getattr__

746# _h = _headof

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

748# if _h(m) == nm:

749# try:

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

751# except (AttributeError, ImportError):

752# pass

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

754# return d.keys() # imported names

755#

756# return _import_star

757

758

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

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

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

762# '''

763# sm = dict()

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

765# nm = _tailof(_name_)

766# _a = _ALL_MODS.getattr

767# _m = _ALL_MODS.getmodule

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

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

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

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

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

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

774# # like import m as s

775# m = _m(m)

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

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

778# pass

779# d.update(sm)

780#

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

782

783

784 def _lazy_init2(pack):

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

786

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

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

789

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

791 for easy reference within itself and its name aka the

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

793

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

795 an import failed or the package name is

796 invalid or does not exist.

797

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

799 '''

800 global isLazy, _unLazy0

801

802 z = _getenv(_PYGEODESY_LAZY_IMPORT_, None)

803 if z is None: # _PYGEODESY_LAZY_IMPORT_ not set

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

805 else:

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

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

808

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

810

811 if isLazy < 1: # not enabled

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

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

814 isLazy += 1

815

816 try: # to initialize in Python 3+

817 package = import_module(pack)

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

819 if parent != pack: # assert

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

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

822

823 except (AttributeError, ImportError) as x:

824 isLazy = False # failed

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

826

827 return package, parent

828

829

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

831 # from pygeodesy.streprs import pairs

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

833

834

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

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

837

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

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

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

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

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

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

844 3+ C{print} keyword arguments C{B{end}}, C{B{sep}}, C{B{file}}

845 and C{B{flush}}.

846

847 @return: Number of bytes written.

848 '''

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

850

851

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

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

854

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

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

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

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

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

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

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

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

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

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

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

866

867 @return: Number of bytes written.

868 '''

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

870 try:

871 if args:

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

873 elif kwds: # PYCHOK no cover

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

875 else: # PYCHOK no cover

876 t = fmt

877 except Exception as x:

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

879 unstr = _ALL_MODS.streprs.unstr

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

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

882 try:

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

884 except UnicodeEncodeError: # XXX only Windows

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

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

887 if fl: # PYCHOK no cover

888 f.flush()

889 return n

890

891

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

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

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

895 '''

896 if nl > 0:

897 prefix = NN(_NL_ * nl, prefix)

898 if nt > 0:

899 end = NN(end, _NL_ * nt)

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

901

902

903# del _i, _i0, _intern

904

905 if __name__ == '__main__':

906

907 from timeit import timeit

908

909 def t1():

910 from pygeodesy.trf import RefFrame

911 return RefFrame

912

913 def t2():

914 return _ALL_MODS.trf.RefFrame

915

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

917

918 t1 = timeit(t1, number=1000000)

919 t2 = timeit(t2, number=1000000)

920 v = _Python_(_sys.version)

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

922 del t1, t2, v

923

924# python3.12 -m pygeodesy.lazily

925# 0.13352763 import vs 0.70804508 _ALL_MODS: 5.303X, Python 3.12.0

926

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

928# 0.37998008 import vs 0.79537812 _ALL_MODS: 2.093X, Python 3.11.5

929

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

931# 0.39046367 import vs 0.90492925 _ALL_MODS: 2.318X, Python 3.10.8

932

933# % python2 -m pygeodesy.lazily

934# 1.17563510 import vs 2.02626395 _ALL_MODS: 1.724X, Python 2.7.18

935

936# **) MIT License

937#

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

939#

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

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

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

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

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

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

946#

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

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

949#

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

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

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

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

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

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

956# OTHER DEALINGS IN THE SOFTWARE.