Coverage for pygeodesy/lazily.py: 92%
204 statements
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« prev ^ index » next coverage.py v7.2.2, created at 2023-12-24 11:18 -0500
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
42from os import getenv as _getenv # in .errors, .geodsolve, .props, .units
43from os.path import basename as _basename
44import sys as _sys # in .basics._sizeof
45try:
46 from importlib import import_module
47except ImportError: # Python 2.6-
48 def import_module(name, *package):
49 t = _ALL_MODS.streprs.unstr(import_module, name, *package)
50 raise LazyImportError(t, txt=_doesn_t_exist_)
52_a_l_l_ = '__all__' # .__main__
53__as__ = ' as '
54_FOR_DOCS = _getenv('PYGEODESY_FOR_DOCS', NN) # for epydoc ...
55_from_DOT__ = _SPACE_(NN, _from_, _DOT_)
56_i0 = () # PYCHOK empty tuple
57_init__all__ = _FOR_DOCS or _getenv('PYGEODESY_INIT__ALL__', _a_l_l_) == _a_l_l_ # PYCHOK expoted
58_lazily_ = 'lazily'
59_lazily_imported__ = _SPACE_(_HASH_, _lazily_, 'imported', NN)
60_p_a_c_k_a_g_e_ = '__package__'
61_PYGEODESY_GEOCONVERT_ = 'PYGEODESY_GEOCONVERT' # PYCHOK .mgrs, test.bases
62_PYGEODESY_GEODSOLVE_ = 'PYGEODESY_GEODSOLVE' # PYCHOK .geodsolve, test.bases
63_PYGEODESY_LAZY_IMPORT_ = 'PYGEODESY_LAZY_IMPORT'
64_PYGEODESY_RHUMBSOLVE_ = 'PYGEODESY_RHUMBSOLVE' # PYCHOK .rhumb.solve, test.bases
65_PYTHON_X_DEV = getattr(_sys, '_xoptions', {}).get('dev', # Python 3.2+
66 _getenv('PYTHONDEVMODE', NN)) # PYCHOK exported
67_sys_version_info2 = _sys.version_info[:2] # in .basics, .fmath, ...
68_unlazy = _unLazy0 = _sys_version_info2 < (3, 7) # PYCHOK mod.__getattr__ 3.7+
69_WARNINGS_X_DEV = _getenv('PYGEODESY_WARNINGS', NN) and (
70 _PYTHON_X_DEV or bool(_sys.warnoptions)) # PYCHOK .props
71# @module_property[_RO?] <https://GitHub.com/jtushman/proxy_tools/>
72isLazy = None # see @var isLazy in .__init__
75class LazyAttributeError(AttributeError):
76 '''Raised if a C{lazily imported} attribute is missing or invalid.
77 '''
78 def __init__(self, *name_value, **txt):
79 _ALL_MODS.errors._error_init(AttributeError, self, name_value, **txt)
82class LazyImportError(ImportError):
83 '''Raised if C{lazy import} is not supported, disabled or failed some other way.
84 '''
85 def __init__(self, *name_value, **txt):
86 _ALL_MODS.errors._error_init(ImportError, self, name_value, **txt)
89class _Dict(dict):
90 '''(INTERNAL) Imports C{dict}.
91 '''
92 _name = NN
94 def __getattr__(self, attr):
95 try:
96 return self[attr]
97 except KeyError:
98 return dict.__getattr__(self, attr)
100# def __setattr__(self, attr, value):
101# if attr in self:
102# self[attr] = value
103# else:
104# dict.__setattr__(self, attr, value)
106 def add(self, name, mod_, *subs):
107 '''Add a C{[name] = mod_} item.
109 @raise AssertionError: The B{C{name}} already exists
110 with a different B{C{mod_}}.
111 '''
112 if name in self:
113 sub = self[name] # duplicate OK
114 if sub != mod_ and sub not in subs: # PYCHOK no cover
115 t = _DOT_(self._name, name)
116 t = _COLONSPACE_(t, repr(sub))
117 t = _COMMASPACE_(t, _not_(repr(mod_)))
118 raise AssertionError(t)
119 else:
120 self[name] = mod_
122 def _NAME(self, which):
123 self._name = _intern(which.__name__.upper())
126class _NamedEnum_RO(dict):
127 '''(INTERNAL) C{Read_Only} enum-like C{dict} sub-class.
128 '''
129# _name = NN # also first kwd, __init__(_name=...)
131 def _DOT_(self, attr): # PYCHOK no cover
132 return _DOT_(self._name, attr) # PYCHOK _name
134 def __getattr__(self, attr):
135 try:
136 return self[attr]
137 except KeyError:
138 t = self._DOT_(attr)
139 raise LazyAttributeError(t, txt=_doesn_t_exist_)
141 def __setattr__(self, attr, value): # PYCHOK no cover
142 t = _EQUALSPACED_(self._DOT_(attr), value)
143 raise LazyAttributeError(t, txt=_immutable_)
145 def enums(self):
146 # Yield all C{(mod_, tuple)} pairs
147 for m, t in dict.items(self):
148 n = m.replace(_UNDER_, _DOT_)
149 if n != m:
150 if m.startswith(_UNDER_):
151 t = None # skip _name= ...
152 else:
153 u = m.rstrip(_UNDER_)
154 if u != m:
155 u = len(u)
156 n = n[:u] + m[u:]
157 if isinstance(t, tuple):
158 yield n, t
160 def fill_D(self, _D, which):
161 # Fill C{_Dict _D}.
162 _D._NAME(which)
163 _a = _D.add
164 for m, t in self.enums():
165 _a(m, _DOT_(m, NN, NN)) # import module
166 for a in t:
167 a, _, as_ = a.partition(__as__)
168 if as_: # import attr as attr_
169 _a(as_, _DOT_(m, a, NN), *_sub_packages)
170 else:
171 _a(a, m)
172 return _D
175def _i(*names):
176 '''(INTERNAL) Intern all C{names}.
177 '''
178 return tuple(map(_intern, names)) if names else _i0
181def _ALL_ATTRS(*attrs):
182 '''(INTERNAL) Unravel all exported module attributes.
183 '''
184 t = ()
185 for attr in attrs:
186 t += tuple(map(_attrof, attr))
187 return t
190_ALL_INIT = _i(_pygeodesy_abspath_, _version_)
192# __all__ value for most modules, accessible as _ALL_LAZY.<module>
193_ALL_LAZY = _NamedEnum_RO(_name='_ALL_LAZY',
194 albers=_i('AlbersEqualArea', 'AlbersEqualArea2', 'AlbersEqualArea4',
195 'AlbersEqualAreaCylindrical', 'AlbersEqualAreaNorth', 'AlbersEqualAreaSouth',
196 'AlbersError', 'Albers7Tuple'),
197 auxilats=_i(), # module only
198 azimuthal=_i('AzimuthalError', 'Azimuthal7Tuple',
199 'Equidistant', 'EquidistantExact', 'EquidistantGeodSolve', 'EquidistantKarney',
200 'Gnomonic', 'GnomonicExact', 'GnomonicGeodSolve', 'GnomonicKarney',
201 'LambertEqualArea', 'Orthographic', 'Stereographic',
202 'equidistant', 'gnomonic'),
203 basics=_i('clips', 'copysign0', 'copytype', 'halfs2',
204 'int1s', 'isbool', 'isCartesian', 'isclass', 'iscomplex', 'isDEPRECATED', 'isfloat',
205 'isidentifier', 'isinstanceof', 'isint', 'iskeyword', 'isLatLon', 'islistuple',
206 'isNvector', 'isodd', 'isscalar', 'issequence', 'isstr', 'issubclassof',
207 'len2', 'map1', 'map2', 'neg', 'neg_',
208 'signBit', 'signOf', 'splice', 'str2ub', 'ub2str', 'unsigned0'),
209 booleans=_i('BooleanFHP', 'BooleanGH', 'LatLonFHP', 'LatLonGH',
210 'isBoolean'),
211 cartesianBase=_i(), # module only
212 clipy=_i('ClipCS4Tuple', 'ClipFHP4Tuple', 'ClipGH4Tuple', 'ClipLB6Tuple', 'ClipSH3Tuple',
213 'clipCS4', 'clipFHP4', 'clipGH4', 'clipLB6', 'clipSH', 'clipSH3'),
214 css=_i('CassiniSoldner', 'Css', 'CSSError', 'toCss',
215 'EasNorAziRk4Tuple', 'EasNorAziRkEqu6Tuple', 'LatLonAziRk4Tuple'),
216 constants=_i('DIG', 'EPS', 'EPS0', 'EPS02', 'EPS1', 'EPS2', 'EPS4', 'EPS_2',
217 'INF', 'INT0', 'MANT_DIG', 'MAX', 'MAX_EXP', 'MIN', 'MIN_EXP', 'NAN', 'NEG0', 'NINF',
218 'PI', 'PI2', 'PI_2', 'PI3', 'PI_3', 'PI3_2', 'PI4', 'PI_4',
219 'R_FM', 'R_GM', 'R_KM', 'R_M', 'R_MA', 'R_MB', 'R_NM', 'R_QM', 'R_SM', 'R_VM',
220 'float_', 'float0_', 'isclose', 'isfinite', 'isinf', 'isint0',
221 'isnan', 'isnear0', 'isnear1', 'isnear90', 'isneg0', 'isninf', 'isnon0',
222 'remainder'),
223 datums=_i('Datum', 'Datums', 'Transform', 'Transforms'),
224# deprecated=_i(), # module only
225 dms=_i('F_D', 'F_DM', 'F_DMS', 'F_DEG', 'F_MIN', 'F_SEC', 'F_D60', 'F__E', 'F__F', 'F__G', 'F_RAD',
226 'F_D_', 'F_DM_', 'F_DMS_', 'F_DEG_', 'F_MIN_', 'F_SEC_', 'F_D60_', 'F__E_', 'F__F_', 'F__G_', 'F_RAD_',
227 'F_D__', 'F_DM__', 'F_DMS__', 'F_DEG__', 'F_MIN__', 'F_SEC__', 'F_D60__', 'F__E__', 'F__F__', 'F__G__', 'F_RAD__',
228 'S_DEG', 'S_MIN', 'S_SEC', 'S_DMS', 'S_RAD', 'S_SEP',
229 'bearingDMS', 'clipDegrees', 'clipRadians', 'compassDMS', 'compassPoint',
230 'degDMS', 'latDMS', 'latlonDMS', 'latlonDMS_', 'lonDMS', 'normDMS',
231 'parseDDDMMSS', 'parseDMS', 'parseDMS2', 'parse3llh', 'parseRad', 'precision', 'toDMS'),
232 ecef=_i('EcefError', 'EcefFarrell21', 'EcefFarrell22', 'EcefKarney', 'EcefMatrix',
233 'EcefSudano', 'Ecef9Tuple', 'EcefVeness', 'EcefYou'),
234 elevations=_i('Elevation2Tuple', 'GeoidHeight2Tuple',
235 'elevation2', 'geoidHeight2'),
236 ellipsoidalBase=_i(), # module only
237 ellipsoidalBaseDI=_i(), # module only
238 ellipsoidalExact=_i(), # module only
239 ellipsoidalGeodSolve=_i(), # module only
240 ellipsoidalKarney=_i(), # module only
241 ellipsoidalNvector=_i(), # module only
242 ellipsoidalVincenty=_i('VincentyError',), # nothing else
243 ellipsoids=_i('a_f2Tuple', 'Circle4Tuple', 'Curvature2Tuple',
244 'Ellipsoid', 'Ellipsoid2', 'Ellipsoids',
245 'a_b2e', 'a_b2e2', 'a_b2e22', 'a_b2e32', 'a_b2f', 'a_b2f_', 'a_b2f2', 'a_b2n',
246 'a_f2b', 'a_f_2b', 'b_f2a', 'b_f_2a',
247 'e2f', 'e22f',
248 'f2e2', 'f2e22', 'f2e32', 'f_2f', 'f2f_', 'f2f2', 'f2n', 'n2e2', 'n2f', 'n2f_'),
249 elliptic=_i('Elliptic', 'EllipticError', 'Elliptic3Tuple'),
250 epsg=_i('Epsg', 'EPSGError'),
251 errors=_i('AuxError', 'ClipError', 'CrossError', 'GeodesicError', 'IntersectionError',
252 'NumPyError', 'LenError', 'LimitError', 'MGRSError',
253 'ParseError', 'PointsError', 'RangeError', 'RhumbError',
254 'SciPyError', 'SciPyWarning', 'TRFError', 'TriangleError', 'UnitError', 'VectorError',
255 'crosserrors', 'exception_chaining', 'isError', 'itemsorted',
256 'limiterrors', 'rangerrors'),
257 etm=_i('Etm', 'ETMError', 'ExactTransverseMercator',
258 'parseETM5', 'toEtm8'),
259 fmath=_i('Fdot', 'Fhorner', 'Fhypot', 'Fpolynomial', 'Fpowers', 'Fn_rt', 'Fcbrt', 'Fsqrt',
260 'bqrt', 'cbrt', 'cbrt2', 'euclid', 'euclid_',
261 'facos1', 'fasin1', 'fatan', 'fatan1', 'fatan2', 'favg',
262 'fdot', 'fdot3', 'fmean', 'fmean_', 'fhorner', 'fidw', 'fpolynomial',
263 'fpowers', 'fprod', 'frange', 'freduce', 'fremainder',
264 'hypot', 'hypot_', 'hypot1', 'hypot2', 'hypot2_',
265 'norm2', 'norm_', 'sqrt0', 'sqrt3', 'sqrt_a', 'zcrt', 'zqrt'),
266 formy=_i('Radical2Tuple',
267 'antipode', 'antipode_', 'bearing', 'bearing_',
268 'compassAngle', 'cosineForsytheAndoyerLambert', 'cosineForsytheAndoyerLambert_',
269 'cosineAndoyerLambert', 'cosineAndoyerLambert_', 'cosineLaw', 'cosineLaw_',
270 'equirectangular', 'equirectangular_', 'euclidean', 'euclidean_',
271 'excessAbc_', 'excessCagnoli_', 'excessGirard_', 'excessLHuilier_',
272 'excessKarney', 'excessKarney_', 'excessQuad', 'excessQuad_',
273 'flatLocal', 'flatLocal_', 'flatPolar', 'flatPolar_',
274 'hartzell', 'haversine', 'haversine_', 'heightOf', 'heightOrthometric', 'horizon', 'hubeny', 'hubeny_',
275 'intersection2', 'intersections2', 'isantipode', 'isantipode_', 'isnormal', 'isnormal_',
276 'latlon2n_xyz', 'normal', 'normal_', 'n_xyz2latlon', 'n_xyz2philam',
277 'opposing', 'opposing_', 'philam2n_xyz', 'radical2', 'rtp2xyz', 'rtp2xyz_',
278 'thomas', 'thomas_', 'vincentys', 'vincentys_', 'xyz2rtp', 'xyz2rtp_'),
279 frechet=_i('Frechet', 'FrechetDegrees', 'FrechetError', 'FrechetRadians',
280 'FrechetCosineAndoyerLambert', 'FrechetCosineForsytheAndoyerLambert',
281 'FrechetCosineLaw', 'FrechetDistanceTo', 'FrechetEquirectangular',
282 'FrechetEuclidean', 'FrechetExact', 'FrechetFlatLocal', 'FrechetFlatPolar',
283 'FrechetHaversine', 'FrechetHubeny', 'FrechetKarney', 'FrechetThomas',
284 'FrechetVincentys', 'Frechet6Tuple',
285 'frechet_'),
286 fstats=_i('Fcook', 'Flinear', 'Fwelford'),
287 fsums=_i('Fsum', 'Fsum2Tuple', 'ResidualError',
288 'fsum', 'fsum_', 'fsumf_', 'fsum1', 'fsum1_', 'fsum1f_'),
289 gars=_i('Garef', 'GARSError'),
290 geodesicw=_i('Geodesic', 'GeodesicLine', 'Geodesic_WGS84'),
291 geodesicx=_i('gx', 'gxarea', 'gxbases', 'gxline', # modules, see _sub_packages
292 'GeodesicAreaExact', 'GeodesicExact', 'GeodesicLineExact', 'PolygonArea'),
293 geodsolve=_i('GeodesicSolve', 'GeodesicLineSolve', 'GeodSolve12Tuple'),
294 geohash=_i('Geohash', 'GeohashError', 'Neighbors8Dict', 'Resolutions2Tuple'),
295 geoids=_i('GeoidError', 'GeoidG2012B', 'GeoidKarney', 'GeoidPGM', 'egmGeoidHeights',
296 'PGMError', 'GeoidHeight5Tuple'),
297 hausdorff=_i('Hausdorff', 'HausdorffDegrees', 'HausdorffError', 'HausdorffRadians',
298 'HausdorffCosineAndoyerLambert', 'HausdorffCosineForsytheAndoyerLambert',
299 'HausdorffCosineLaw', 'HausdorffDistanceTo', 'HausdorffEquirectangular',
300 'HausdorffEuclidean', 'HausdorffExact', 'HausdorffFlatLocal', 'HausdorffFlatPolar',
301 'HausdorffHaversine', 'HausdorffHubeny', 'HausdorffKarney', 'HausdorffThomas',
302 'HausdorffVincentys', 'Hausdorff6Tuple',
303 'hausdorff_', 'randomrangenerator'),
304 heights=_i('HeightCubic', 'HeightError',
305 'HeightIDWcosineAndoyerLambert', 'HeightIDWcosineForsytheAndoyerLambert',
306 'HeightIDWcosineLaw', 'HeightIDWdistanceTo', 'HeightIDWequirectangular',
307 'HeightIDWeuclidean', 'HeightIDWexact', 'HeightIDWflatLocal', 'HeightIDWflatPolar',
308 'HeightIDWhaversine', 'HeightIDWhubeny', 'HeightIDWkarney', 'HeightIDWthomas',
309 'HeightIDWvincentys', 'HeightLinear', 'HeightLSQBiSpline', 'HeightSmoothBiSpline'),
310 interns=_interns__all__,
311 iters=_i('LatLon2PsxyIter', 'PointsIter', 'points2',
312 'isNumpy2', 'isPoints2', 'isTuple2', 'iterNumpy2', 'iterNumpy2over'),
313 karney=_i('Area3Tuple', 'Caps', 'Direct9Tuple', 'GDict', 'Inverse10Tuple', 'Rhumb8Tuple'),
314 ktm=_i('KTMError', 'KTransverseMercator'),
315 latlonBase=_i(), # module only
316 lazily=_i('LazyAttributeError', 'LazyImportError', 'isLazy', 'print_', 'printf'),
317 lcc=_i('Conic', 'Conics', 'Lcc', 'LCCError', 'toLcc'),
318 ltp=_i('Attitude', 'AttitudeError', 'ChLV', 'ChLVa', 'ChLVe', 'Frustum',
319 'LocalCartesian', 'LocalError', 'Ltp', 'tyr3d'),
320 ltpTuples=_i('Aer', 'Aer4Tuple', 'Attitude4Tuple',
321 'ChLVEN2Tuple', 'ChLV9Tuple', 'ChLVYX2Tuple', 'ChLVyx2Tuple',
322 'Enu', 'Enu4Tuple', 'Footprint5Tuple', 'Local9Tuple', 'Los',
323 'Ned', 'Ned4Tuple', 'Uvw', 'Uvw3Tuple', 'XyzLocal', 'Xyz4Tuple'),
324 mgrs=_i('Mgrs', 'parseMGRS', 'toMgrs', 'Mgrs4Tuple', 'Mgrs6Tuple'),
325 named=_i('callername', 'classname', 'classnaming', 'modulename',
326 'nameof', 'notImplemented', 'notOverloaded'),
327 namedTuples=_i('Bearing2Tuple', 'Bounds2Tuple', 'Bounds4Tuple',
328 'Destination2Tuple', 'Destination3Tuple',
329 'Distance2Tuple', 'Distance3Tuple', 'Distance4Tuple',
330 'EasNor2Tuple', 'EasNor3Tuple', 'Forward4Tuple', 'Intersection3Tuple',
331 'LatLon2Tuple', 'LatLon3Tuple', 'LatLon4Tuple',
332 'LatLonDatum3Tuple', 'LatLonDatum5Tuple',
333 'LatLonPrec3Tuple', 'LatLonPrec5Tuple',
334 'NearestOn2Tuple', 'NearestOn3Tuple', 'NearestOn6Tuple', 'NearestOn8Tuple',
335 'PhiLam2Tuple', 'PhiLam3Tuple', 'PhiLam4Tuple', 'Point3Tuple', 'Points2Tuple',
336 'Reverse4Tuple', 'Triangle7Tuple', 'Triangle8Tuple', 'Trilaterate5Tuple',
337 'UtmUps2Tuple', 'UtmUps5Tuple', 'UtmUps8Tuple', 'UtmUpsLatLon5Tuple',
338 'Vector2Tuple', 'Vector3Tuple', 'Vector4Tuple'),
339 nvectorBase=_i(_NorthPole_, _SouthPole_),
340 osgr=_i('Osgr', 'OSGRError', 'parseOSGR', 'toOsgr'),
341 points=_i('LatLon_', 'LatLon2psxy', 'Numpy2LatLon', 'Shape2Tuple', 'Tuple2LatLon',
342 _areaOf_, 'boundsOf', 'centroidOf', 'fractional',
343 _isclockwise_, 'isconvex', 'isconvex_', 'isenclosedBy', _ispolar_,
344 'luneOf', 'nearestOn5', 'perimeterOf', 'quadOf'),
345 props=_i('Property', 'Property_RO', 'property_RO', 'property_doc_',
346 'deprecated_class', 'deprecated_function', 'deprecated_method',
347 'deprecated_Property_RO', 'deprecated_property_RO', 'DeprecationWarnings'),
348 resections=_i('Collins5Tuple', 'ResectionError', 'Survey3Tuple', 'Tienstra7Tuple',
349 'TriAngle5Tuple', 'TriSide2Tuple', 'TriSide4Tuple',
350 'cassini', 'collins5', 'pierlot', 'pierlotx', 'tienstra7',
351 'snellius3', 'wildberger3',
352 'triAngle', 'triAngle5', 'triArea', 'triSide', 'triSide2', 'triSide4'),
353 rhumb=_i(), # module only
354 rhumb_aux_=_i('RhumbAux', 'RhumbLineAux'),
355 rhumb_ekx=_i('Rhumb', 'RhumbLine'),
356 rhumb_solve=_i('RhumbSolve', 'RhumbLineSolve', 'RhumbSolve7Tuple'),
357 sphericalBase=_i(), # module only
358 sphericalNvector=_i(), # module only
359 sphericalTrigonometry=_i(), # module only
360 simplify=_i('simplify1', 'simplifyRDP', 'simplifyRDPm', 'simplifyRW', 'simplifyVW', 'simplifyVWm'),
361 solveBase=_i(), # module only
362 streprs=_i('anstr', 'attrs', 'enstr2', 'fstr', 'fstrzs', 'hstr', 'instr',
363 'lrstrip', 'pairs', 'reprs', 'strs', 'unstr'),
364 trf=_i('Helmert7Tuple', 'RefFrame', 'RefFrames',
365 'date2epoch', 'epoch2date', 'trfXform'),
366 triaxials=_i('BetaOmega2Tuple', 'BetaOmega3Tuple', 'Jacobi2Tuple',
367 'JacobiConformal', 'JacobiConformalSpherical',
368 'Triaxial', 'Triaxial_', 'TriaxialError', 'Triaxials', 'hartzell4'),
369 units=_i('Band', 'Bearing', 'Bearing_', 'Bool',
370 'Degrees', 'Degrees_', 'Degrees2', 'Distance', 'Distance_', 'Easting', 'Epoch',
371 'Feet', 'FIx', 'Float_', 'Height', 'Height_', 'HeightX', 'Int_',
372 'Lam', 'Lam_', 'Lat', 'Lat_', 'Lon', 'Lon_',
373 'Meter', 'Meter_', 'Meter2', 'Meter3', 'Northing', 'Number_',
374 'Phi', 'Phi_', 'Precision_', 'Radians', 'Radians_', 'Radians2',
375 'Radius_', 'Scalar', 'Scalar_', 'Zone'),
376 unitsBase=_i('Float', 'Int', 'Radius', 'Str'),
377 ups=_i('Ups', 'UPSError', 'parseUPS5', 'toUps8', 'upsZoneBand5'),
378 utily=_i('acos1', 'acre2ha', 'acre2m2', 'asin1', 'atan1', 'atan1d', 'atan2b', 'atan2d',
379 'chain2m', 'circle4', 'cot', 'cot_', 'cotd', 'cotd_',
380 'degrees', 'degrees90', 'degrees180', 'degrees360', 'degrees2grades', 'degrees2m',
381# 'degrees2grades as degrees2gons',
382 'fathom2m', 'ft2m', 'furlong2m',
383 'grades', 'grades400', 'grades2degrees', 'grades2radians',
384# 'grades as gons', 'grades400 as gons400', 'grades2degrees as gons2degrees', 'grades2radians as gons2radians',
385 'km2m', 'm2chain', 'm2degrees', 'm2fathom', 'm2ft', 'm2furlong',
386 'm2km', 'm2NM', 'm2radians', 'm2SM', 'm2toise', 'm2yard', 'NM2m',
387 'radians', 'radiansPI', 'radiansPI2', 'radiansPI_2', 'radians2m',
388 'sincos2', 'SinCos2', 'sincos2_', 'sincos2d', 'sincos2d_', 'sincostan3', 'SM2m',
389 'tand', 'tand_', 'tan_2', 'tanPI_2_2', 'toise2m', 'truncate',
390 'unroll180', 'unrollPI',
391 'wrap90', 'wrap180', 'wrap360', 'wrapPI_2', 'wrapPI', 'wrapPI2', 'wrap_normal',
392 'yard2m'),
393 utm=_i('Utm', 'UTMError', 'parseUTM5', 'toUtm8', 'utmZoneBand5'),
394 utmups=_i('UtmUps', 'UTMUPSError', 'parseUTMUPS5', 'toUtmUps8',
395 'utmupsValidate', 'utmupsValidateOK', 'utmupsZoneBand5'),
396 utmupsBase=_i(), # module only
397 vector2d=_i('Circin6Tuple', 'Circum3Tuple', 'Circum4Tuple', 'Meeus2Tuple', 'Radii11Tuple', 'Soddy4Tuple',
398 'circin6', 'circum3', 'circum4_', 'meeus2', 'radii11', 'soddy4'),
399 vector3d=_i('Vector3d', 'intersection3d3', 'iscolinearWith', 'nearestOn', 'nearestOn6', 'parse3d',
400 'trilaterate2d2', 'trilaterate3d2'),
401 vector3dBase=_i(), # module only
402 webmercator=_i('Wm', 'WebMercatorError', 'parseWM', 'toWm', 'EasNorRadius3Tuple'),
403 wgrs=_i('Georef', 'WGRSError'),)
405_ALL_DEPRECATED = _NamedEnum_RO(_name='_ALL_DEPRECATED',
406 deprecated=_i('bases', 'datum', 'nvector', # DEPRECATED modules and ...
407 'rhumbaux', 'rhumbBase', 'rhumbsolve', 'rhumbx'), # ... names
408 deprecated_bases=_i('LatLonHeightBase', 'points2'),
409 deprecated_classes=_i('ClipCS3Tuple', 'EasNorExact4Tuple', 'EcefCartesian',
410 'HeightIDW', 'HeightIDW2', 'HeightIDW3',
411 'LatLonExact4Tuple', 'NearestOn4Tuple', 'Ned3Tuple',
412 'RefFrameError', 'Rhumb7Tuple', 'RhumbOrder2Tuple',
413 'Transform7Tuple', 'TriAngle4Tuple', 'UtmUps4Tuple'),
414 deprecated_consterns=_i('EPS1_2', 'MANTIS', 'OK'),
415 deprecated_datum=_i('Curvature2Tuple', 'Datum', 'Ellipsoid', 'Transform', # assert
416 'Datums', 'Ellipsoids', 'Transforms',
417 'R_M', 'R_MA', 'R_MB', 'R_KM', 'R_NM', 'R_SM', 'R_FM', 'R_VM'),
418 deprecated_functions=_i('anStr', 'areaof', 'atand', 'bounds', # most of the DEPRECATED functions, except ...
419 'clipCS3', 'clipDMS', 'clipStr', 'collins', 'copysign', # ... ellipsoidal, spherical flavors
420 'decodeEPSG2', 'encodeEPSG', 'enStr2', 'equirectangular3',
421 'excessAbc', 'excessGirard', 'excessLHuilier',
422 'false2f', 'falsed2f', 'float0', 'fStr', 'fStrzs', 'hypot3',
423 'inStr', 'isenclosedby', 'istuplist',
424 'joined', 'joined_', 'nearestOn3', 'nearestOn4',
425 'parseUTM', 'perimeterof', 'polygon', 'scalar', 'simplify2',
426 'tienstra', 'toUtm', 'triAngle4', 'unsign0', 'unStr', 'utmZoneBand2'),
427 deprecated_nvector=_i('LatLonNvectorBase', 'Nvector', 'sumOf', 'NorthPole', 'SouthPole'),)
430class _ALL_MODS(object):
431 '''(INTERNAL) Memoize import of any L{pygeodesy} module.
432 '''
433 def _DOT_(self, name): # PYCHOK no cover
434 return _DOT_(self.__class__.__name__, name)
436 def __getattr__(self, name):
437 '''Get a C{pygeodesy} module or attribute by B{C{name}}.
439 @arg name: Qualified module or attribute name (C{str}).
441 @raise ImportError: Importing module B{C{name}} failed.
443 @raise AttributeError: No attribute named B{C{name}}.
444 '''
445 m = self.getmodule(name)
446 return m if _tailof(m.__name__) == name else \
447 getattr(m, _tailof(name))
449 def __setattr__(self, attr, value): # PYCHOK no cover
450 t = _EQUALSPACED_(self._DOT_(attr), repr(value))
451 raise AttributeError(_COLONSPACE_(t, _immutable_))
453 def getattr(self, mod, *attr_dflt): # , parent=_pygeodesy_
454 '''Get an attribute of/or a C{pygeodesy} module.
456 @arg mod: Qualified module name (C{str}).
457 @arg attr_dflt: Optional attribute name (C{str}) and
458 optional default value (any C{type}).
460 @return: The C{pygeodesy} module's attribute value.
462 @raise ImportError: Importing module B{C{mod}} failed.
464 @raise AttributeError: No attribute named B{C{attr}}.
465 '''
466 v = self.getmodule(mod)
467 if attr_dflt:
468 v = getattr(v, *attr_dflt)
469 return v
471 def getmodule(self, name, parent=_pygeodesy_):
472 '''Get a C{pygeodesy} module.
474 @arg name: Qualified module name (C{str}).
476 @return: The C{pygeodesy} module.
478 @raise ImportError: Importing module B{C{name}} failed.
479 '''
480 if _headof(name) != parent:
481 name = _DOT_(parent, name)
482 try:
483 return _sys.modules[name]
484 except KeyError:
485 return import_module(name, parent)
487 def items(self): # no module named 'items'
488 '''Yield the modules imported so far.
489 '''
490 for n, m in _sys.modules.items():
491 yield n, m
493_ALL_MODS = _ALL_MODS() # PYCHOK singleton
495__all__ = _ALL_LAZY.lazily
496__version__ = '23.12.08'
499def _ALL_OTHER(*objs):
500 '''(INTERNAL) Get class and function B{C{objs}} for __all__.
501 '''
502 _interns = _ALL_MODS.interns # from pygeodesy import interns
504 def _interned(o): # intern'd base name
505 n = _tailof(_dunder_nameof(o))
506 i = NN(_UNDER_, n, _UNDER_) # intern'd
507 return getattr(_interns, i, n)
509 return tuple(map(_interned, objs)) # map2
512if _FOR_DOCS:
513 _ALL_DOCS = _ALL_OTHER
514 # (INTERNAL) Only export B{C{objs.__name__}} when making the
515 # docs to force C{epydoc} to include certain classes, methods,
516 # functions and other names in the documentation. Using the
517 # C{epydoc --private ...} command line option tends to include
518 # too much internal documentation.
519else:
520 def _ALL_DOCS(*unused):
521 return ()
524def _all_deprecates():
525 '''(INTERNAL) Build C{dict} of all deprecated imports.
526 '''
527 _D = _ALL_DEPRECATES
528 if not _D:
529 _ALL_DEPRECATED.fill_D(_D, _all_deprecates) # see _all_imports()
530 return _D
532_ALL_DEPRECATES = _Dict() # PYCHOK _ALL_DEPRECATED.imports()
535def _all_imports():
536 '''(INTERNAL) Build C{dict} of all lazy imports.
537 '''
538 # imports naming conventions stored below - [<key>] = <from>:
539 # import <module> - [<module>] = <module>
540 # from <module> import <attr> - [<attr>] = <module>
541 # from pygeodesy import <attr> - [<attr>] = <attr>
542 # from <module> import <attr> as <name> - [<name>] = <module>.<attr>.
543 _D = _ALL_IMPORTS
544 if not _D:
545 _ALL_LAZY.fill_D(_D, _all_imports) # see _all_deprecates()
546 return _D
548_ALL_IMPORTS = _Dict() # PYCHOK _ALL_LAZY.imports()
551def _all_missing2(_all_):
552 '''(INTERNAL) Get diffs between pygeodesy.__all__ and lazily._all_imports.
553 '''
554 def _diff(one, two):
555 return tuple(sorted(a for a in one if a not in two))
557 _alzy = _Dict((a, a) for a in _ALL_INIT)
558 _alzy.update(_all_imports()) # without _all_backups!
559 return ((_DOT_(_lazily_, _all_imports.__name__), _diff(_all_, _alzy)),
560 (_DOT_(_pygeodesy_, _a_l_l_), _diff(_alzy.keys(), _all_)))
563def _attrof(attr_as): # .testDeprecated
564 a_, _, as_ = attr_as.partition(__as__)
565 return as_ or a_.rstrip(_DOT_)
568def _caller3(up): # in .named
569 '''(INTERNAL) Get 3-tuple C{(caller name, file name, line number)}
570 for the caller B{C{up}} stack frames in the Python call stack.
571 '''
572 # sys._getframe(1) ... 'importlib._bootstrap' line 1032,
573 # may throw a ValueError('call stack not deep enough')
574 f = _sys._getframe(up + 1)
575 return (f.f_code.co_name, # caller name
576 _basename(f.f_code.co_filename), # file name
577 f.f_lineno) # line number
580def _lazy_attr(unused): # PYCHOK overwritten in _lazy_import
581 pass
584# def _lazy_attributes(_name_):
585# '''(INTERNAL) Return a function to C{B{_name_}.__getattr__(attr)}
586# on lazily imported modules and sub-modules.
587# '''
588# if _unlazy:
589# raise AssertionError(_COMMASPACE_(_name_, _not_(_DEPRECATED_)))
590#
591# def _getattr(attr, *dflt):
592# try: # a module name
593# return _ALL_MODS.getmodule(attr)
594# except (AttributeError, ImportError):
595# return _ALL_MODS.getattr(_name_, attr, *dflt)
596#
597# return _getattr
600def _lazy_import2(pack): # MCCABE 14
601 '''Check for and set up C{lazy import}.
603 @arg pack: The name of the package (C{str}) performing the imports,
604 to help resolving relative imports, usually C{__package__}.
606 @return: 2-Tuple C{(package, getattr)} of the importing package for
607 easy reference within itself and the callable to be set to
608 C{package.__getattr__}.
610 @raise LazyAttributeError: The package, module or attribute name is
611 invalid or does not exist.
613 @raise LazyImportError: Lazy import not supported or not enabled or
614 an import failed.
616 @note: This is I{Brett Cannon}'s function U{modutil.lazy_import
617 <https://GitHub.com/brettcannon/modutil/blob/master/modutil.py>}
618 modified to handle the C{__all__} and C{__dir__} attributes and
619 call C{importlib.import_module(<module>.<name>, ...)} without
620 causing a C{ModuleNotFoundError}.
622 @see: The original U{modutil<https://PyPI.org/project/modutil>},
623 U{PEP 562<https://www.Python.org/dev/peps/pep-0562>} and the
624 U{new way<https://Snarky.Ca/lazy-importing-in-python-3-7/>}.
625 '''
626 if pack != _pygeodesy_ or _unlazy: # new in 3.7
627 t = _no_(_DOT_(pack, _lazy_import2.__name__)) # PYCHOK no cover
628 raise LazyImportError(t, txt=_Python_(_sys.version))
630 package, parent = _lazy_init2(pack) # _pygeodesy_
632 subpacks = set((parent, '__main__', NN) + tuple(
633 _DOT_(parent, s) for s in _sub_packages))
634 imports = _all_imports()
635 deprecates = _all_deprecates()
637 def __getattr__(name): # __getattr__ only for Python 3.7+
638 # only called once for each undefined pygeodesy attribute
639 mod = imports.get(name, NN) or deprecates.get(name, NN)
640 if mod:
641 # importlib.import_module() implicitly sets sub-modules
642 # on this module as appropriate for direct imports (see
643 # note in the _lazy_import2.__doc__ above).
644 if mod.endswith(_DOT_): # import mod[.attr] as name
645 mod, _, attr = mod[:-1].rpartition(_DOT_)
646 else: # from mod import name
647 attr = name
648 try:
649 t = _DOT_(pack, mod)
650 imported = import_module(t, parent)
651 except ImportError:
652 # <https://GitHub.com/mrJean1/PyGeodesy/issues/76>
653 raise LazyImportError(_no_(_module_), txt=t)
654 t = getattr(imported, _p_a_c_k_a_g_e_, None)
655 if t not in subpacks: # invalid module package
656 raise LazyImportError(_DOT_(mod, _p_a_c_k_a_g_e_), t)
657 if attr: # get the attribute
658 imported = getattr(imported, attr, MISSING)
659 if imported is MISSING: # PYCHOK no cover
660 t = _DOT_(mod, attr)
661 # <https://GitHub.com/mrJean1/PyGeodesy/issues/76>
662 raise LazyAttributeError(_no_(_attribute_), txt=t)
664 elif name in (_a_l_l_,): # XXX '_d_i_r_', '_m_e_m_b_e_r_s_'?
665 imported = _ALL_INIT + tuple(imports.keys())
666 else: # PYCHOK no cover
667 t = _no_(_module_, _or_, _attribute_)
668 # <https://GitHub.com/mrJean1/PyGeodesy/issues/76>
669 raise LazyAttributeError(t, txt=_DOT_(parent, name))
671 setattr(package, name, imported)
672 if isLazy > 1:
673 t = NN(_lazily_imported__, _DOT_(parent, name))
674 if mod and _tailof(mod) != name:
675 t = NN(t, _from_DOT__, mod)
676 if isLazy > 2:
677 try: # see C{_caller3}
678 _, f, s = _caller3(2)
679 t = _SPACE_(t, _by_, f, _line_, s)
680 except ValueError:
681 pass
682 printf(t) # XXX print
684 return imported # __getattr__
686 global _lazy_attr
687 _lazy_attr = __getattr__
689 return package, __getattr__ # _lazy_import2
692# def _lazy_import_all(_name_):
693# '''(INTERNAL) Return a function mimicking C{from B{__name__} import *},
694# of all items, see .deprecated.__init__
695# '''
696# if _unlazy:
697# raise AssertionError(_COMMASPACE_(_name_, _not_(_DEPRECATED_)))
698#
699# _getattr = _lazy_attributes(_name_) # _name_.__getattr__
700# _import_start = _lazy_import_star(_name_, ALL_=_ALL_IMPORTS)
701#
702# def _import_all(attr, *dflt):
703# return _import_star(_name_) if attr == _a_l_l_ else \
704# _getattr(attr, *dflt)
705#
706# return _import_all
709def _lazy_import_as(_name_):
710 '''(INTERNAL) Return a function to C{import B{__name__}.mod as mod}
711 I{of modules only}, see .deprecated, .rhumb or get an attribute
712 lazily exported by C{__name__}.
713 '''
714 if _unlazy:
715 return None
717 def _import_as(mod):
718 try:
719 return _ALL_MODS.getmodule(_DOT_(_name_, mod))
720 except ImportError:
721 return _lazy_attr(mod)
723 return _import_as
726# def _lazy_import_star(_name_, ALL_=_ALL_DEPRECATES):
727# '''(INTERNAL) Return a function to mimick C{from B{__name__} import *},
728# of all DEPRECATED items, see .deprecated, .testDeprecated
729# '''
730# if _unlazy:
731# raise AssertionError(_COMMASPACE_(_name_, _not_(_DEPRECATED_)))
732#
733# def _import_star(_into_):
734# '''Do C{from B{__name__} import *} inside module C{B{__into__}}.
735# '''
736# d = dict()
737# nm = _tailof(_name_)
738# _g = _ALL_MODS.getattr # pygeodesy.__getattr__
739# _h = _headof
740# for a, m in ALL_.items():
741# if _h(m) == nm:
742# try:
743# d[a] = _g(m, a)
744# except (AttributeError, ImportError):
745# pass
746# _sys.modules[_into_].__dict__.update(d)
747# return d.keys() # imported names
748#
749# return _import_star
752# def _lazy_subs(_name_, force=_FOR_DOCS, over=False):
753# '''(INTERNAL) Return the names of a package's sub-packages and
754# update the package's C{__dict__} accordingly.
755# '''
756# sm = dict()
757# if force and _name_ != '__main__':
758# nm = _tailof(_name_)
759# _a = _ALL_MODS.getattr
760# _m = _ALL_MODS.getmodule
761# d = _a(_name_, '__dict__', {})
762# for n in _a(_name_, _a_l_l_, ()):
763# try: # n is a class name, get its mod name
764# m = _a(_name_, n).__module__
765# n, s = m.split(_DOT_)[-2:]
766# if n == nm and s not in sm:
767# # like import m as s
768# m = _m(m)
769# sm[s] = m if over else d.get(s, m)
770# except (AttributeError, ImportError, ValueError) as x:
771# pass
772# d.update(sm)
773#
774# return _ALL_OTHER(*sm.values())
777def _lazy_init2(pack):
778 '''(INTERNAL) Initialize lazy import and set globals C{isLazy} and C{_unLazy0}.
780 @arg pack: The name of the package (C{str}) performing the imports,
781 to help resolving relative imports, usually C{__package__}.
783 @return: 2-Tuple C{(package, parent)} with the importing C{package}
784 for easy reference within itself and its name aka the
785 C{parent}, same as B{C{pack}}.
787 @raise LazyImportError: Lazy import not supported or not enabled,
788 an import failed or the package name is
789 invalid or does not exist.
791 @note: Global C{isLazy} is set accordingly.
792 '''
793 global isLazy, _unLazy0
795 z = _getenv(_PYGEODESY_LAZY_IMPORT_, None)
796 if z is None: # _PYGEODESY_LAZY_IMPORT_ not set
797 isLazy = 1 # ... but only by default on 3.7
798 else:
799 z = z.strip() # like PYTHONVERBOSE et.al.
800 isLazy = int(z) if z.isdigit() else (1 if z else 0)
802 _unLazy0 = _unlazy or not isLazy # pre-3.7 or w/o lazy import
804 if isLazy < 1: # not enabled
805 raise LazyImportError(_PYGEODESY_LAZY_IMPORT_, repr(z), txt=_not_(_enabled_))
806 if _getenv('PYTHONVERBOSE', None): # PYCHOK no cover
807 isLazy += 1
809 try: # to initialize in Python 3+
810 package = import_module(pack)
811 parent = package.__spec__.parent # __spec__ only in Python 3.7+
812 if parent != pack: # assert
813 t = _COMMASPACE_(parent, _not_(pack)) # PYCHOK no cover
814 raise AttributeError(_EQUALSPACED_('parent', t))
816 except (AttributeError, ImportError) as x:
817 isLazy = False # failed
818 raise LazyImportError(_lazy_init2.__name__, pack, cause=x)
820 return package, parent
823def _pairs(*args, **kwds): # in .errors, .ktm
824 # from pygeodesy.streprs import pairs
825 return _ALL_MODS.streprs.pairs(*args, **kwds)
828def print_(*args, **nl_nt_prefix_end_file_flush_sep): # PYCHOK no cover
829 '''Python 3+ C{print}-like formatting and printing.
831 @arg args: Arguments to be converted to C{str} and joined by B{C{sep}}
832 (any C{type}, all positional).
833 @kwarg nl_nt_prefix_end_file_flush_sep: Keyword arguments C{B{nl}=0}
834 for the number of leading blank lines (C{int}), C{B{nt}=0}
835 the number of trailing blank lines (C{int}), C{B{prefix}=NN}
836 to be inserted before the formatted text (C{str}) and Python
837 3+ C{print} keyword arguments C{B{end}}, C{B{sep}}, C{B{file}}
838 and C{B{flush}}.
840 @return: Number of bytes written.
841 '''
842 return printf(NN, *args, **nl_nt_prefix_end_file_flush_sep)
845def printf(fmt, *args, **nl_nt_prefix_end_file_flush_sep_kwds):
846 '''C{Printf-style} and Python 3+ C{print}-like formatting and printing.
848 @arg fmt: U{Printf-style<https://Docs.Python.org/3/library/stdtypes.html#
849 printf-style-string-formatting>} format specification (C{str}).
850 @arg args: Arguments to be formatted (any C{type}, all positional).
851 @kwarg nl_nt_prefix_end_file_flush_sep_kwds: Keyword arguments C{B{nl}=0}
852 for the number of leading blank lines (C{int}), C{B{nt}=0} the
853 number of trailing blank lines (C{int}), C{B{prefix}=NN} to
854 be inserted before the formatted text (C{str}) and Python 3+
855 C{print} keyword arguments C{B{end}}, C{B{sep}}, C{B{file}} and
856 C{B{flush}}. Any remaining C{B{kwds}} are U{printf-style
857 <https://Docs.Python.org/3/library/stdtypes.html#printf-style-string-formatting>}
858 keyword arguments to be formatted, I{iff no B{C{args}} are present}.
860 @return: Number of bytes written.
861 '''
862 b, e, s, f, fl, p, kwds = _xprint7(**nl_nt_prefix_end_file_flush_sep_kwds)
863 try:
864 if args:
865 t = (fmt % args) if fmt else s.join(map(str, args))
866 elif kwds: # PYCHOK no cover
867 t = (fmt % kwds) if fmt else s.join(_pairs(kwds, prec=p))
868 else: # PYCHOK no cover
869 t = fmt
870 except Exception as x:
871 _E, s = _ALL_MODS.errors._xError2(x)
872 unstr = _ALL_MODS.streprs.unstr
873 t = unstr(printf, fmt, *args, **nl_nt_prefix_end_file_flush_sep_kwds)
874 raise _E(s, txt=t, cause=x)
875 try:
876 n = f.write(NN(b, t, e))
877 except UnicodeEncodeError: # XXX only Windows
878 t = t.replace('\u2032', _QUOTE1_).replace('\u2033', _QUOTE2_)
879 n = f.write(NN(b, t, e))
880 if fl: # PYCHOK no cover
881 f.flush()
882 return n
885def _xprint7(nl=0, nt=0, prec=6, prefix=NN, sep=_SPACE_, file=_sys.stdout,
886 end=_NL_, flush=False, **kwds):
887 '''(INTERNAL) Unravel the C{printf} and remaining keyword arguments.
888 '''
889 if nl > 0:
890 prefix = NN(_NL_ * nl, prefix)
891 if nt > 0:
892 end = NN(end, _NL_ * nt)
893 return prefix, end, sep, file, flush, prec, kwds
896# del _i, _i0, _intern
898if __name__ == '__main__':
900 from timeit import timeit
902 def t1():
903 from pygeodesy.trf import RefFrame
904 return RefFrame
906 def t2():
907 return _ALL_MODS.trf.RefFrame
909 assert t1() is t2() # prime each
911 t1 = timeit(t1, number=1000000)
912 t2 = timeit(t2, number=1000000)
913 v = _Python_(_sys.version)
914 printf('%.8f import vs %.8f _ALL_MODS: %.3fX, %s', t1, t2, t2 / t1, v)
915 del t1, t2, v
917# python3.12 -m pygeodesy.lazily
918# 0.13352763 import vs 0.70804508 _ALL_MODS: 5.303X, Python 3.12.0
920# % python3.11 -W ignore -m pygeodesy.lazily
921# 0.37998008 import vs 0.79537812 _ALL_MODS: 2.093X, Python 3.11.5
923# % python3.10 -W ignore -m pygeodesy.lazily
924# 0.39046367 import vs 0.90492925 _ALL_MODS: 2.318X, Python 3.10.8
926# % python2 -m pygeodesy.lazily
927# 1.17563510 import vs 2.02626395 _ALL_MODS: 1.724X, Python 2.7.18
929# **) MIT License
930#
931# Copyright (C) 2018-2024 -- mrJean1 at Gmail -- All Rights Reserved.
932#
933# Permission is hereby granted, free of charge, to any person obtaining a
934# copy of this software and associated documentation files (the "Software"),
935# to deal in the Software without restriction, including without limitation
936# the rights to use, copy, modify, merge, publish, distribute, sublicense,
937# and/or sell copies of the Software, and to permit persons to whom the
938# Software is furnished to do so, subject to the following conditions:
939#
940# The above copyright notice and this permission notice shall be included
941# in all copies or substantial portions of the Software.
942#
943# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
944# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
945# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
946# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
947# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
948# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
949# OTHER DEALINGS IN THE SOFTWARE.