Coverage for pygeodesy/lazily.py: 92%
208 statements
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2# -*- coding: utf-8 -*-
4u'''Lazily import C{pygeodesy} modules and attributes, based on
5U{lazy_import<https://modutil.ReadTheDocs.io/en/latest/#lazy_import>}
6from I{Brett Cannon}'s U{modutil<https://PyPI.org/project/modutil>}.
8C{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
10default} in U{PyGeodesy 18.11.10<https://PyPI.org/project/PyGeodesy>}
11I{and newer}.
13To I{enable} C{lazy import}, set C{env} variable C{PYGEODESY_LAZY_IMPORT}
14to C{1}, C{2}, C{3} or higher prior to C{import pygeodesy}. To I{disable}
15C{lazy import}, set C{env} variable C{PYGEODESY_LAZY_IMPORT} to C{0} or
16an empty string. Use C{2} or higher to print a message for each lazily
17imported module and attribute, similar to C{env} variable C{PYTHONVERBOSE}
18showing imports. Using C{3} or higher also shows the importing file name
19and line number.
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.
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'''
30# from pygeodesy.errors import _xError2 # _ALL_MODS
31from 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_
39from pygeodesy.interns import _intern # PYCHOK used!
40# from pygeodesy.streprs import Fmt, pairs, unstr # _ALL_MODS
41from pygeodesy import _isfrozen # handle as w/o lazy import
43from os import getenv as _getenv # in .errors, .geodsolve, .props, .units
44from os.path import basename as _basename
45import sys as _sys # in .basics._sizeof
46try:
47 from importlib import import_module
48except 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_)
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/>
73isLazy = None # see @var isLazy in .__init__
76class 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)
83class 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)
90class _Dict(dict):
91 '''(INTERNAL) Imports C{dict}.
92 '''
93 _name = NN
95 def __getattr__(self, attr):
96 try:
97 return self[attr]
98 except KeyError:
99 return dict.__getattr__(self, attr)
101# def __setattr__(self, attr, value):
102# if attr in self:
103# self[attr] = value
104# else:
105# dict.__setattr__(self, attr, value)
107 def add(self, name, mod_, *subs):
108 '''Add a C{[name] = mod_} item.
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_
123 def _NAME(self, which):
124 self._name = _intern(which.__name__.upper())
127class _NamedEnum_RO(dict):
128 '''(INTERNAL) C{Read_Only} enum-like C{dict} sub-class.
129 '''
130# _name = NN # also first kwd, __init__(_name=...)
132 def _DOT_(self, attr): # PYCHOK no cover
133 return _DOT_(self._name, attr) # PYCHOK _name
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_)
142 def __setattr__(self, attr, value): # PYCHOK no cover
143 t = _EQUALSPACED_(self._DOT_(attr), value)
144 raise LazyAttributeError(t, txt=_immutable_)
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
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
176def _i(*names):
177 '''(INTERNAL) Intern all C{names}.
178 '''
179 return tuple(map(_intern, names)) if names else _i0
182def _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
191_ALL_INIT = _i(_pygeodesy_abspath_, _version_)
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', 'trfTransforms', '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'),)
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', 'triAngle4',
429 'unsign0', 'unStr', 'utmZoneBand2'),
430 deprecated_nvector=_i('LatLonNvectorBase', 'Nvector', 'sumOf', 'NorthPole', 'SouthPole'),)
433class _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)
439 def __getattr__(self, name):
440 '''Get a C{pygeodesy} module or attribute by B{C{name}}.
442 @arg name: Qualified module or attribute name (C{str}).
444 @raise ImportError: Importing module B{C{name}} failed.
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))
452 def __setattr__(self, attr, value): # PYCHOK no cover
453 t = _EQUALSPACED_(self._DOT_(attr), repr(value))
454 raise AttributeError(_COLONSPACE_(t, _immutable_))
456 def getattr(self, mod, *attr_dflt): # , parent=_pygeodesy_
457 '''Get an attribute of/or a C{pygeodesy} module.
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}).
463 @return: The C{pygeodesy} module's attribute value.
465 @raise ImportError: Importing module B{C{mod}} failed.
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
474 def getmodule(self, name, parent=_pygeodesy_):
475 '''Get a C{pygeodesy} module.
477 @arg name: Qualified module name (C{str}).
479 @return: The C{pygeodesy} module.
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)
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
496 @property # property_RO
497 def name(self):
498 return self.__class__.__name__
500_ALL_MODS = _ALL_MODS() # PYCHOK singleton
502__all__ = _ALL_LAZY.lazily
503__version__ = '24.02.08'
506def _ALL_OTHER(*objs):
507 '''(INTERNAL) Get class and function B{C{objs}} for __all__.
508 '''
509 _interns = _ALL_MODS.interns # from pygeodesy import interns
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)
516 return tuple(map(_interned, objs)) # map2
519if _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.
526else:
527 def _ALL_DOCS(*unused):
528 return ()
531def _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
539_ALL_DEPRECATES = _Dict() # PYCHOK _ALL_DEPRECATED.imports()
542def _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
555_ALL_IMPORTS = _Dict() # PYCHOK _ALL_LAZY.imports()
558def _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))
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_)))
570def _attrof(attr_as): # .testDeprecated
571 a_, _, as_ = attr_as.partition(__as__)
572 return as_ or a_.rstrip(_DOT_)
575def _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
587def _lazy_attr(unused): # PYCHOK overwritten in _lazy_import
588 pass
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
607def _lazy_import2(pack): # MCCABE 14
608 '''Check for and set up C{lazy import}.
610 @arg pack: The name of the package (C{str}) performing the imports,
611 to help resolving relative imports, usually C{__package__}.
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__}.
617 @raise LazyAttributeError: The package, module or attribute name is
618 invalid or does not exist.
620 @raise LazyImportError: Lazy import not supported or not enabled or
621 an import failed.
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}.
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))
637 package, parent = _lazy_init2(pack) # _pygeodesy_
639 subpacks = set((parent, '__main__', NN) + tuple(
640 _DOT_(parent, s) for s in _sub_packages))
641 imports = _all_imports()
642 deprecates = _all_deprecates()
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)
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))
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
691 return imported # __getattr__
693 global _lazy_attr
694 _lazy_attr = __getattr__
696 return package, __getattr__ # _lazy_import2
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
716def _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
724 def _import_as(mod):
725 try:
726 return _ALL_MODS.getmodule(_DOT_(_name_, mod))
727 except ImportError:
728 return _lazy_attr(mod)
730 return _import_as
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
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())
784def _lazy_init2(pack):
785 '''(INTERNAL) Initialize lazy import and set globals C{isLazy} and C{_unLazy0}.
787 @arg pack: The name of the package (C{str}) performing the imports,
788 to help resolving relative imports, usually C{__package__}.
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}}.
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.
798 @note: Global C{isLazy} is set accordingly.
799 '''
800 global isLazy, _unLazy0
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)
809 _unLazy0 = _unlazy or not isLazy # pre-3.7 or w/o lazy import
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
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))
823 except (AttributeError, ImportError) as x:
824 isLazy = False # failed
825 raise LazyImportError(_lazy_init2.__name__, pack, cause=x)
827 return package, parent
830def _pairs(*args, **kwds): # in .ktm
831 # from pygeodesy.streprs import pairs
832 return _ALL_MODS.streprs.pairs(*args, **kwds)
835def print_(*args, **nl_nt_prefix_end_file_flush_sep): # PYCHOK no cover
836 '''Python 3+ C{print}-like formatting and printing.
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}}.
847 @return: Number of bytes written.
848 '''
849 return printf(NN, *args, **nl_nt_prefix_end_file_flush_sep)
852def printf(fmt, *args, **nl_nt_prefix_end_file_flush_sep_kwds):
853 '''C{Printf-style} and Python 3+ C{print}-like formatting and printing.
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}.
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
892def _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
903# del _i, _i0, _intern
905if __name__ == '__main__':
907 from timeit import timeit
909 def t1():
910 from pygeodesy.trf import RefFrame
911 return RefFrame
913 def t2():
914 return _ALL_MODS.trf.RefFrame
916 assert t1() is t2() # prime each
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
924# python3.12 -m pygeodesy.lazily
925# 0.13352763 import vs 0.70804508 _ALL_MODS: 5.303X, Python 3.12.0
927# % python3.11 -W ignore -m pygeodesy.lazily
928# 0.37998008 import vs 0.79537812 _ALL_MODS: 2.093X, Python 3.11.5
930# % python3.10 -W ignore -m pygeodesy.lazily
931# 0.39046367 import vs 0.90492925 _ALL_MODS: 2.318X, Python 3.10.8
933# % python2 -m pygeodesy.lazily
934# 1.17563510 import vs 2.02626395 _ALL_MODS: 1.724X, Python 2.7.18
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.