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('callername', 'classname', 'classnaming', 'modulename',
327 'nameof', 'notImplemented', 'notOverloaded'),
328 namedTuples=_i('Bearing2Tuple', 'Bounds2Tuple', 'Bounds4Tuple',
329 'Destination2Tuple', 'Destination3Tuple',
330 'Distance2Tuple', 'Distance3Tuple', 'Distance4Tuple',
331 'EasNor2Tuple', 'EasNor3Tuple', 'Forward4Tuple', 'Intersection3Tuple',
332 'LatLon2Tuple', 'LatLon3Tuple', 'LatLon4Tuple',
333 'LatLonDatum3Tuple', 'LatLonDatum5Tuple',
334 'LatLonPrec3Tuple', 'LatLonPrec5Tuple',
335 'NearestOn2Tuple', 'NearestOn3Tuple', 'NearestOn6Tuple', 'NearestOn8Tuple',
336 'PhiLam2Tuple', 'PhiLam3Tuple', 'PhiLam4Tuple', 'Point3Tuple', 'Points2Tuple',
337 'Reverse4Tuple', 'Triangle7Tuple', 'Triangle8Tuple', 'Trilaterate5Tuple',
338 'UtmUps2Tuple', 'UtmUps5Tuple', 'UtmUps8Tuple', 'UtmUpsLatLon5Tuple',
339 'Vector2Tuple', 'Vector3Tuple', 'Vector4Tuple'),
340 nvectorBase=_i(_NorthPole_, _SouthPole_),
341 osgr=_i('Osgr', 'OSGRError', 'parseOSGR', 'toOsgr'),
342 points=_i('LatLon_', 'LatLon2psxy', 'Numpy2LatLon', 'Shape2Tuple', 'Tuple2LatLon',
343 _areaOf_, 'boundsOf', 'centroidOf', 'fractional',
344 _isclockwise_, 'isconvex', 'isconvex_', 'isenclosedBy', _ispolar_,
345 'luneOf', 'nearestOn5', 'perimeterOf', 'quadOf'),
346 props=_i('Property', 'Property_RO', 'property_RO', 'property_doc_',
347 'deprecated_class', 'deprecated_function', 'deprecated_method',
348 'deprecated_Property_RO', 'deprecated_property_RO', 'DeprecationWarnings'),
349 resections=_i('Collins5Tuple', 'ResectionError', 'Survey3Tuple', 'Tienstra7Tuple',
350 'TriAngle5Tuple', 'TriSide2Tuple', 'TriSide4Tuple',
351 'cassini', 'collins5', 'pierlot', 'pierlotx', 'tienstra7',
352 'snellius3', 'wildberger3',
353 'triAngle', 'triAngle5', 'triArea', 'triSide', 'triSide2', 'triSide4'),
354 rhumb=_i(), # module only
355 rhumb_aux_=_i('RhumbAux', 'RhumbLineAux'),
356 rhumb_ekx=_i('Rhumb', 'RhumbLine'),
357 rhumb_solve=_i('RhumbSolve', 'RhumbLineSolve', 'RhumbSolve7Tuple'),
358 sphericalBase=_i(), # module only
359 sphericalNvector=_i(), # module only
360 sphericalTrigonometry=_i(), # module only
361 simplify=_i('simplify1', 'simplifyRDP', 'simplifyRDPm', 'simplifyRW', 'simplifyVW', 'simplifyVWm'),
362 solveBase=_i(), # module only
363 streprs=_i('anstr', 'attrs', 'enstr2', 'fstr', 'fstrzs', 'hstr', 'instr',
364 'lrstrip', 'pairs', 'reprs', 'strs', 'unstr'),
365 trf=_i('Helmert7Tuple', 'RefFrame', 'RefFrames',
366 'date2epoch', 'epoch2date', 'trfTransforms', 'trfXform'),
367 triaxials=_i('BetaOmega2Tuple', 'BetaOmega3Tuple', 'Jacobi2Tuple',
368 'JacobiConformal', 'JacobiConformalSpherical',
369 'Triaxial', 'Triaxial_', 'TriaxialError', 'Triaxials', 'hartzell4'),
370 units=_i('Band', 'Bearing', 'Bearing_', 'Bool',
371 'Degrees', 'Degrees_', 'Degrees2', 'Distance', 'Distance_', 'Easting', 'Epoch',
372 'Feet', 'FIx', 'Float_', 'Height', 'Height_', 'HeightX', 'Int_',
373 'Lam', 'Lam_', 'Lat', 'Lat_', 'Lon', 'Lon_',
374 'Meter', 'Meter_', 'Meter2', 'Meter3', 'Northing', 'Number_',
375 'Phi', 'Phi_', 'Precision_', 'Radians', 'Radians_', 'Radians2',
376 'Radius_', 'Scalar', 'Scalar_', 'Zone'),
377 unitsBase=_i('Float', 'Int', 'Radius', 'Str'),
378 ups=_i('Ups', 'UPSError', 'parseUPS5', 'toUps8', 'upsZoneBand5'),
379 utily=_i('acos1', 'acre2ha', 'acre2m2', 'asin1', 'atan1', 'atan1d', 'atan2b', 'atan2d',
380 'chain2m', 'circle4', 'cot', 'cot_', 'cotd', 'cotd_',
381 'degrees', 'degrees90', 'degrees180', 'degrees360', 'degrees2grades', 'degrees2m',
382# 'degrees2grades as degrees2gons',
383 'fathom2m', 'ft2m', 'furlong2m',
384 'grades', 'grades400', 'grades2degrees', 'grades2radians',
385# 'grades as gons', 'grades400 as gons400', 'grades2degrees as gons2degrees', 'grades2radians as gons2radians',
386 'km2m', 'm2chain', 'm2degrees', 'm2fathom', 'm2ft', 'm2furlong',
387 'm2km', 'm2NM', 'm2radians', 'm2SM', 'm2toise', 'm2yard', 'NM2m',
388 'radians', 'radiansPI', 'radiansPI2', 'radiansPI_2', 'radians2m',
389 'sincos2', 'SinCos2', 'sincos2_', 'sincos2d', 'sincos2d_', 'sincostan3', 'SM2m',
390 'tand', 'tand_', 'tan_2', 'tanPI_2_2', 'toise2m', 'truncate',
391 'unroll180', 'unrollPI',
392 'wrap90', 'wrap180', 'wrap360', 'wrapPI_2', 'wrapPI', 'wrapPI2', 'wrap_normal',
393 'yard2m'),
394 utm=_i('Utm', 'UTMError', 'parseUTM5', 'toUtm8', 'utmZoneBand5'),
395 utmups=_i('UtmUps', 'UTMUPSError', 'parseUTMUPS5', 'toUtmUps8',
396 'utmupsValidate', 'utmupsValidateOK', 'utmupsZoneBand5'),
397 utmupsBase=_i(), # module only
398 vector2d=_i('Circin6Tuple', 'Circum3Tuple', 'Circum4Tuple', 'Meeus2Tuple', 'Radii11Tuple', 'Soddy4Tuple',
399 'circin6', 'circum3', 'circum4_', 'meeus2', 'radii11', 'soddy4'),
400 vector3d=_i('Vector3d', 'intersection3d3', 'iscolinearWith', 'nearestOn', 'nearestOn6', 'parse3d',
401 'trilaterate2d2', 'trilaterate3d2'),
402 vector3dBase=_i(), # module only
403 webmercator=_i('Wm', 'WebMercatorError', 'parseWM', 'toWm', 'EasNorRadius3Tuple'),
404 wgrs=_i('Georef', 'WGRSError'),)
406_ALL_DEPRECATED = _NamedEnum_RO(_name='_ALL_DEPRECATED',
407 deprecated=_i('bases', 'datum', 'nvector', # DEPRECATED modules and ...
408 'rhumbaux', 'rhumbBase', 'rhumbsolve', 'rhumbx'), # ... names
409 deprecated_bases=_i('LatLonHeightBase', 'points2'),
410 deprecated_classes=_i('ClipCS3Tuple', 'EasNorExact4Tuple', 'EcefCartesian',
411 'HeightIDW', 'HeightIDW2', 'HeightIDW3',
412 'LatLonExact4Tuple', 'NearestOn4Tuple', 'Ned3Tuple',
413 'RefFrameError', 'Rhumb7Tuple', 'RhumbOrder2Tuple',
414 'Transform7Tuple', 'TriAngle4Tuple', 'UtmUps4Tuple'),
415 deprecated_consterns=_i('EPS1_2', 'MANTIS', 'OK'),
416 deprecated_datum=_i('Curvature2Tuple', 'Datum', 'Ellipsoid', 'Transform', # assert
417 'Datums', 'Ellipsoids', 'Transforms',
418 'R_M', 'R_MA', 'R_MB', 'R_KM', 'R_NM', 'R_SM', 'R_FM', 'R_VM'),
419 deprecated_functions=_i('anStr', 'areaof', 'atand', 'bounds', # most of the DEPRECATED functions, except ...
420 'clipCS3', 'clipDMS', 'clipStr', 'collins', 'copysign', # ... ellipsoidal, spherical flavors
421 'decodeEPSG2', 'encodeEPSG', 'enStr2', 'equirectangular3',
422 'excessAbc', 'excessGirard', 'excessLHuilier',
423 'false2f', 'falsed2f', 'float0', 'fStr', 'fStrzs', 'hypot3',
424 'inStr', 'isenclosedby', 'istuplist',
425 'joined', 'joined_', 'nearestOn3', 'nearestOn4',
426 'parseUTM', 'perimeterof', 'polygon', 'scalar', 'simplify2',
427 'tienstra', 'toUtm', 'triAngle4', 'unsign0', 'unStr', 'utmZoneBand2'),
428 deprecated_nvector=_i('LatLonNvectorBase', 'Nvector', 'sumOf', 'NorthPole', 'SouthPole'),)
431class _ALL_MODS(object):
432 '''(INTERNAL) Memoize import of any L{pygeodesy} module.
433 '''
434 def _DOT_(self, name): # PYCHOK no cover
435 return _DOT_(self.__class__.__name__, name)
437 def __getattr__(self, name):
438 '''Get a C{pygeodesy} module or attribute by B{C{name}}.
440 @arg name: Qualified module or attribute name (C{str}).
442 @raise ImportError: Importing module B{C{name}} failed.
444 @raise AttributeError: No attribute named B{C{name}}.
445 '''
446 m = self.getmodule(name)
447 return m if _tailof(m.__name__) == name else \
448 getattr(m, _tailof(name))
450 def __setattr__(self, attr, value): # PYCHOK no cover
451 t = _EQUALSPACED_(self._DOT_(attr), repr(value))
452 raise AttributeError(_COLONSPACE_(t, _immutable_))
454 def getattr(self, mod, *attr_dflt): # , parent=_pygeodesy_
455 '''Get an attribute of/or a C{pygeodesy} module.
457 @arg mod: Qualified module name (C{str}).
458 @arg attr_dflt: Optional attribute name (C{str}) and
459 optional default value (any C{type}).
461 @return: The C{pygeodesy} module's attribute value.
463 @raise ImportError: Importing module B{C{mod}} failed.
465 @raise AttributeError: No attribute named B{C{attr}}.
466 '''
467 v = self.getmodule(mod)
468 if attr_dflt:
469 v = getattr(v, *attr_dflt)
470 return v
472 def getmodule(self, name, parent=_pygeodesy_):
473 '''Get a C{pygeodesy} module.
475 @arg name: Qualified module name (C{str}).
477 @return: The C{pygeodesy} module.
479 @raise ImportError: Importing module B{C{name}} failed.
480 '''
481 if _headof(name) != parent:
482 name = _DOT_(parent, name)
483 try:
484 return _sys.modules[name]
485 except KeyError:
486 return import_module(name, parent)
488 def items(self): # no module named 'items'
489 '''Yield the modules imported so far.
490 '''
491 for n, m in _sys.modules.items():
492 yield n, m
494 @property # property_RO
495 def name(self):
496 return self.__class__.__name__
498_ALL_MODS = _ALL_MODS() # PYCHOK singleton
500__all__ = _ALL_LAZY.lazily
501__version__ = '24.01.24'
504def _ALL_OTHER(*objs):
505 '''(INTERNAL) Get class and function B{C{objs}} for __all__.
506 '''
507 _interns = _ALL_MODS.interns # from pygeodesy import interns
509 def _interned(o): # intern'd base name
510 n = _tailof(_dunder_nameof(o))
511 i = NN(_UNDER_, n, _UNDER_) # intern'd
512 return getattr(_interns, i, n)
514 return tuple(map(_interned, objs)) # map2
517if _FOR_DOCS:
518 _ALL_DOCS = _ALL_OTHER
519 # (INTERNAL) Only export B{C{objs.__name__}} when making the
520 # docs to force C{epydoc} to include certain classes, methods,
521 # functions and other names in the documentation. Using the
522 # C{epydoc --private ...} command line option tends to include
523 # too much internal documentation.
524else:
525 def _ALL_DOCS(*unused):
526 return ()
529def _all_deprecates():
530 '''(INTERNAL) Build C{dict} of all deprecated imports.
531 '''
532 _D = _ALL_DEPRECATES
533 if not _D:
534 _ALL_DEPRECATED.fill_D(_D, _all_deprecates) # see _all_imports()
535 return _D
537_ALL_DEPRECATES = _Dict() # PYCHOK _ALL_DEPRECATED.imports()
540def _all_imports():
541 '''(INTERNAL) Build C{dict} of all lazy imports.
542 '''
543 # imports naming conventions stored below - [<key>] = <from>:
544 # import <module> - [<module>] = <module>
545 # from <module> import <attr> - [<attr>] = <module>
546 # from pygeodesy import <attr> - [<attr>] = <attr>
547 # from <module> import <attr> as <name> - [<name>] = <module>.<attr>.
548 _D = _ALL_IMPORTS
549 if not _D:
550 _ALL_LAZY.fill_D(_D, _all_imports) # see _all_deprecates()
551 return _D
553_ALL_IMPORTS = _Dict() # PYCHOK _ALL_LAZY.imports()
556def _all_missing2(_all_):
557 '''(INTERNAL) Get diffs between pygeodesy.__all__ and lazily._all_imports.
558 '''
559 def _diff(one, two):
560 return tuple(sorted(a for a in one if a not in two))
562 _alzy = _Dict((a, a) for a in _ALL_INIT)
563 _alzy.update(_all_imports()) # without _all_backups!
564 return ((_DOT_(_lazily_, _all_imports.__name__), _diff(_all_, _alzy)),
565 (_DOT_(_pygeodesy_, _a_l_l_), _diff(_alzy.keys(), _all_)))
568def _attrof(attr_as): # .testDeprecated
569 a_, _, as_ = attr_as.partition(__as__)
570 return as_ or a_.rstrip(_DOT_)
573def _caller3(up): # in .named
574 '''(INTERNAL) Get 3-tuple C{(caller name, file name, line number)}
575 for the caller B{C{up}} stack frames in the Python call stack.
576 '''
577 # sys._getframe(1) ... 'importlib._bootstrap' line 1032,
578 # may throw a ValueError('call stack not deep enough')
579 f = _sys._getframe(up + 1)
580 return (f.f_code.co_name, # caller name
581 _basename(f.f_code.co_filename), # file name
582 f.f_lineno) # line number
585def _lazy_attr(unused): # PYCHOK overwritten in _lazy_import
586 pass
589# def _lazy_attributes(_name_):
590# '''(INTERNAL) Return a function to C{B{_name_}.__getattr__(attr)}
591# on lazily imported modules and sub-modules.
592# '''
593# if _unlazy:
594# raise AssertionError(_COMMASPACE_(_name_, _not_(_DEPRECATED_)))
595#
596# def _getattr(attr, *dflt):
597# try: # a module name
598# return _ALL_MODS.getmodule(attr)
599# except (AttributeError, ImportError):
600# return _ALL_MODS.getattr(_name_, attr, *dflt)
601#
602# return _getattr
605def _lazy_import2(pack): # MCCABE 14
606 '''Check for and set up C{lazy import}.
608 @arg pack: The name of the package (C{str}) performing the imports,
609 to help resolving relative imports, usually C{__package__}.
611 @return: 2-Tuple C{(package, getattr)} of the importing package for
612 easy reference within itself and the callable to be set to
613 C{package.__getattr__}.
615 @raise LazyAttributeError: The package, module or attribute name is
616 invalid or does not exist.
618 @raise LazyImportError: Lazy import not supported or not enabled or
619 an import failed.
621 @note: This is I{Brett Cannon}'s function U{modutil.lazy_import
622 <https://GitHub.com/brettcannon/modutil/blob/master/modutil.py>}
623 modified to handle the C{__all__} and C{__dir__} attributes and
624 call C{importlib.import_module(<module>.<name>, ...)} without
625 causing a C{ModuleNotFoundError}.
627 @see: The original U{modutil<https://PyPI.org/project/modutil>},
628 U{PEP 562<https://www.Python.org/dev/peps/pep-0562>} and the
629 U{new way<https://Snarky.Ca/lazy-importing-in-python-3-7/>}.
630 '''
631 if pack != _pygeodesy_ or _unlazy: # new in 3.7
632 t = _no_(_DOT_(pack, _lazy_import2.__name__)) # PYCHOK no cover
633 raise LazyImportError(t, txt=_Python_(_sys.version))
635 package, parent = _lazy_init2(pack) # _pygeodesy_
637 subpacks = set((parent, '__main__', NN) + tuple(
638 _DOT_(parent, s) for s in _sub_packages))
639 imports = _all_imports()
640 deprecates = _all_deprecates()
642 def __getattr__(name): # __getattr__ only for Python 3.7+
643 # only called once for each undefined pygeodesy attribute
644 mod = imports.get(name, NN) or deprecates.get(name, NN)
645 if mod:
646 # importlib.import_module() implicitly sets sub-modules
647 # on this module as appropriate for direct imports (see
648 # note in the _lazy_import2.__doc__ above).
649 if mod.endswith(_DOT_): # import mod[.attr] as name
650 mod, _, attr = mod[:-1].rpartition(_DOT_)
651 else: # from mod import name
652 attr = name
653 try:
654 t = _DOT_(pack, mod)
655 imported = import_module(t, parent)
656 except ImportError:
657 # <https://GitHub.com/mrJean1/PyGeodesy/issues/76>
658 raise LazyImportError(_no_(_module_), txt=t)
659 t = getattr(imported, _p_a_c_k_a_g_e_, None)
660 if t not in subpacks: # invalid module package
661 raise LazyImportError(_DOT_(mod, _p_a_c_k_a_g_e_), t)
662 if attr: # get the attribute
663 imported = getattr(imported, attr, MISSING)
664 if imported is MISSING: # PYCHOK no cover
665 t = _DOT_(mod, attr)
666 # <https://GitHub.com/mrJean1/PyGeodesy/issues/76>
667 raise LazyAttributeError(_no_(_attribute_), txt=t)
669 elif name in (_a_l_l_,): # XXX '_d_i_r_', '_m_e_m_b_e_r_s_'?
670 imported = _ALL_INIT + tuple(imports.keys())
671 else: # PYCHOK no cover
672 t = _no_(_module_, _or_, _attribute_)
673 # <https://GitHub.com/mrJean1/PyGeodesy/issues/76>
674 raise LazyAttributeError(t, txt=_DOT_(parent, name))
676 setattr(package, name, imported)
677 if isLazy > 1:
678 t = NN(_lazily_imported__, _DOT_(parent, name))
679 if mod and _tailof(mod) != name:
680 t = NN(t, _from_DOT__, mod)
681 if isLazy > 2:
682 try: # see C{_caller3}
683 _, f, s = _caller3(2)
684 t = _SPACE_(t, _by_, f, _line_, s)
685 except ValueError:
686 pass
687 printf(t) # XXX print
689 return imported # __getattr__
691 global _lazy_attr
692 _lazy_attr = __getattr__
694 return package, __getattr__ # _lazy_import2
697# def _lazy_import_all(_name_):
698# '''(INTERNAL) Return a function mimicking C{from B{__name__} import *},
699# of all items, see .deprecated.__init__
700# '''
701# if _unlazy:
702# raise AssertionError(_COMMASPACE_(_name_, _not_(_DEPRECATED_)))
703#
704# _getattr = _lazy_attributes(_name_) # _name_.__getattr__
705# _import_start = _lazy_import_star(_name_, ALL_=_ALL_IMPORTS)
706#
707# def _import_all(attr, *dflt):
708# return _import_star(_name_) if attr == _a_l_l_ else \
709# _getattr(attr, *dflt)
710#
711# return _import_all
714def _lazy_import_as(_name_):
715 '''(INTERNAL) Return a function to C{import B{__name__}.mod as mod}
716 I{of modules only}, see .deprecated, .rhumb or get an attribute
717 lazily exported by C{__name__}.
718 '''
719 if _unlazy:
720 return None
722 def _import_as(mod):
723 try:
724 return _ALL_MODS.getmodule(_DOT_(_name_, mod))
725 except ImportError:
726 return _lazy_attr(mod)
728 return _import_as
731# def _lazy_import_star(_name_, ALL_=_ALL_DEPRECATES):
732# '''(INTERNAL) Return a function to mimick C{from B{__name__} import *},
733# of all DEPRECATED items, see .deprecated, .testDeprecated
734# '''
735# if _unlazy:
736# raise AssertionError(_COMMASPACE_(_name_, _not_(_DEPRECATED_)))
737#
738# def _import_star(_into_):
739# '''Do C{from B{__name__} import *} inside module C{B{__into__}}.
740# '''
741# d = dict()
742# nm = _tailof(_name_)
743# _g = _ALL_MODS.getattr # pygeodesy.__getattr__
744# _h = _headof
745# for a, m in ALL_.items():
746# if _h(m) == nm:
747# try:
748# d[a] = _g(m, a)
749# except (AttributeError, ImportError):
750# pass
751# _sys.modules[_into_].__dict__.update(d)
752# return d.keys() # imported names
753#
754# return _import_star
757# def _lazy_subs(_name_, force=_FOR_DOCS, over=False):
758# '''(INTERNAL) Return the names of a package's sub-packages and
759# update the package's C{__dict__} accordingly.
760# '''
761# sm = dict()
762# if force and _name_ != '__main__':
763# nm = _tailof(_name_)
764# _a = _ALL_MODS.getattr
765# _m = _ALL_MODS.getmodule
766# d = _a(_name_, '__dict__', {})
767# for n in _a(_name_, _a_l_l_, ()):
768# try: # n is a class name, get its mod name
769# m = _a(_name_, n).__module__
770# n, s = m.split(_DOT_)[-2:]
771# if n == nm and s not in sm:
772# # like import m as s
773# m = _m(m)
774# sm[s] = m if over else d.get(s, m)
775# except (AttributeError, ImportError, ValueError) as x:
776# pass
777# d.update(sm)
778#
779# return _ALL_OTHER(*sm.values())
782def _lazy_init2(pack):
783 '''(INTERNAL) Initialize lazy import and set globals C{isLazy} and C{_unLazy0}.
785 @arg pack: The name of the package (C{str}) performing the imports,
786 to help resolving relative imports, usually C{__package__}.
788 @return: 2-Tuple C{(package, parent)} with the importing C{package}
789 for easy reference within itself and its name aka the
790 C{parent}, same as B{C{pack}}.
792 @raise LazyImportError: Lazy import not supported or not enabled,
793 an import failed or the package name is
794 invalid or does not exist.
796 @note: Global C{isLazy} is set accordingly.
797 '''
798 global isLazy, _unLazy0
800 z = _getenv(_PYGEODESY_LAZY_IMPORT_, None)
801 if z is None: # _PYGEODESY_LAZY_IMPORT_ not set
802 isLazy = 1 # ... but only by default on 3.7
803 else:
804 z = z.strip() # like PYTHONVERBOSE et.al.
805 isLazy = int(z) if z.isdigit() else (1 if z else 0)
807 _unLazy0 = _unlazy or not isLazy # pre-3.7 or w/o lazy import
809 if isLazy < 1: # not enabled
810 raise LazyImportError(_PYGEODESY_LAZY_IMPORT_, repr(z), txt=_not_(_enabled_))
811 if _getenv('PYTHONVERBOSE', None): # PYCHOK no cover
812 isLazy += 1
814 try: # to initialize in Python 3+
815 package = import_module(pack)
816 parent = package.__spec__.parent # __spec__ only in Python 3.7+
817 if parent != pack: # assert
818 t = _COMMASPACE_(parent, _not_(pack)) # PYCHOK no cover
819 raise AttributeError(_EQUALSPACED_('parent', t))
821 except (AttributeError, ImportError) as x:
822 isLazy = False # failed
823 raise LazyImportError(_lazy_init2.__name__, pack, cause=x)
825 return package, parent
828def _pairs(*args, **kwds): # in .ktm
829 # from pygeodesy.streprs import pairs
830 return _ALL_MODS.streprs.pairs(*args, **kwds)
833def print_(*args, **nl_nt_prefix_end_file_flush_sep): # PYCHOK no cover
834 '''Python 3+ C{print}-like formatting and printing.
836 @arg args: Arguments to be converted to C{str} and joined by B{C{sep}}
837 (any C{type}, all positional).
838 @kwarg nl_nt_prefix_end_file_flush_sep: Keyword arguments C{B{nl}=0}
839 for the number of leading blank lines (C{int}), C{B{nt}=0}
840 the number of trailing blank lines (C{int}), C{B{prefix}=NN}
841 to be inserted before the formatted text (C{str}) and Python
842 3+ C{print} keyword arguments C{B{end}}, C{B{sep}}, C{B{file}}
843 and C{B{flush}}.
845 @return: Number of bytes written.
846 '''
847 return printf(NN, *args, **nl_nt_prefix_end_file_flush_sep)
850def printf(fmt, *args, **nl_nt_prefix_end_file_flush_sep_kwds):
851 '''C{Printf-style} and Python 3+ C{print}-like formatting and printing.
853 @arg fmt: U{Printf-style<https://Docs.Python.org/3/library/stdtypes.html#
854 printf-style-string-formatting>} format specification (C{str}).
855 @arg args: Arguments to be formatted (any C{type}, all positional).
856 @kwarg nl_nt_prefix_end_file_flush_sep_kwds: Keyword arguments C{B{nl}=0}
857 for the number of leading blank lines (C{int}), C{B{nt}=0} the
858 number of trailing blank lines (C{int}), C{B{prefix}=NN} to
859 be inserted before the formatted text (C{str}) and Python 3+
860 C{print} keyword arguments C{B{end}}, C{B{sep}}, C{B{file}} and
861 C{B{flush}}. Any remaining C{B{kwds}} are U{printf-style
862 <https://Docs.Python.org/3/library/stdtypes.html#printf-style-string-formatting>}
863 keyword arguments to be formatted, I{iff no B{C{args}} are present}.
865 @return: Number of bytes written.
866 '''
867 b, e, s, f, fl, p, kwds = _xprint7(**nl_nt_prefix_end_file_flush_sep_kwds)
868 try:
869 if args:
870 t = (fmt % args) if fmt else s.join(map(str, args))
871 elif kwds: # PYCHOK no cover
872 t = (fmt % kwds) if fmt else s.join(_pairs(kwds, prec=p))
873 else: # PYCHOK no cover
874 t = fmt
875 except Exception as x:
876 _E, s = _ALL_MODS.errors._xError2(x)
877 unstr = _ALL_MODS.streprs.unstr
878 t = unstr(printf, fmt, *args, **nl_nt_prefix_end_file_flush_sep_kwds)
879 raise _E(s, txt=t, cause=x)
880 try:
881 n = f.write(NN(b, t, e))
882 except UnicodeEncodeError: # XXX only Windows
883 t = t.replace('\u2032', _QUOTE1_).replace('\u2033', _QUOTE2_)
884 n = f.write(NN(b, t, e))
885 if fl: # PYCHOK no cover
886 f.flush()
887 return n
890def _xprint7(nl=0, nt=0, prec=6, prefix=NN, sep=_SPACE_, file=_sys.stdout,
891 end=_NL_, flush=False, **kwds):
892 '''(INTERNAL) Unravel the C{printf} and remaining keyword arguments.
893 '''
894 if nl > 0:
895 prefix = NN(_NL_ * nl, prefix)
896 if nt > 0:
897 end = NN(end, _NL_ * nt)
898 return prefix, end, sep, file, flush, prec, kwds
901# del _i, _i0, _intern
903if __name__ == '__main__':
905 from timeit import timeit
907 def t1():
908 from pygeodesy.trf import RefFrame
909 return RefFrame
911 def t2():
912 return _ALL_MODS.trf.RefFrame
914 assert t1() is t2() # prime each
916 t1 = timeit(t1, number=1000000)
917 t2 = timeit(t2, number=1000000)
918 v = _Python_(_sys.version)
919 printf('%.8f import vs %.8f _ALL_MODS: %.3fX, %s', t1, t2, t2 / t1, v)
920 del t1, t2, v
922# python3.12 -m pygeodesy.lazily
923# 0.13352763 import vs 0.70804508 _ALL_MODS: 5.303X, Python 3.12.0
925# % python3.11 -W ignore -m pygeodesy.lazily
926# 0.37998008 import vs 0.79537812 _ALL_MODS: 2.093X, Python 3.11.5
928# % python3.10 -W ignore -m pygeodesy.lazily
929# 0.39046367 import vs 0.90492925 _ALL_MODS: 2.318X, Python 3.10.8
931# % python2 -m pygeodesy.lazily
932# 1.17563510 import vs 2.02626395 _ALL_MODS: 1.724X, Python 2.7.18
934# **) MIT License
935#
936# Copyright (C) 2018-2024 -- mrJean1 at Gmail -- All Rights Reserved.
937#
938# Permission is hereby granted, free of charge, to any person obtaining a
939# copy of this software and associated documentation files (the "Software"),
940# to deal in the Software without restriction, including without limitation
941# the rights to use, copy, modify, merge, publish, distribute, sublicense,
942# and/or sell copies of the Software, and to permit persons to whom the
943# Software is furnished to do so, subject to the following conditions:
944#
945# The above copyright notice and this permission notice shall be included
946# in all copies or substantial portions of the Software.
947#
948# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
949# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
950# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
951# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
952# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
953# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
954# OTHER DEALINGS IN THE SOFTWARE.