Coverage for pygeodesy/interns.py: 97%

450 statements  

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1# -*- coding: utf-8 -*- 

2 

3u'''Single C{str}ing constants, C{intern}'ed across C{pygeodesy} 

4modules and function L{pygeodesy.machine}. 

5''' 

6import sys as _sys 

7try: 

8 _intern = intern # PYCHOK in .lazily 

9except NameError: # Python 3+ 

10 _intern = _sys.intern 

11 

12_COMMASPACE_ = ', ' # overriden below 

13_pf2List = [] # cached _platform2 list 

14_Py3List = [] # cached _pythonarchine list 

15 

16_sub_packages = 'auxilats', 'deprecated', 'geodesicx', 'rhumb' # PYCHOK in .lazily, 

17# ... make._dist, MANIFEST, setup.setup, test.bases, test.testModules 

18 

19 

20class _Dash(str): 

21 '''(INTERNAL) Extended C{str} for prefix_DASH_. 

22 ''' 

23 def __call__(self, *args): 

24 '''Join C{self} plus all B{C{args}} like C{'-'.join((self,) + B{args})}. 

25 ''' 

26 return _DASH_(self, *args) # re-callable 

27 

28 

29class _Int(int): 

30 '''(INTERNAL) Unique C{int}. 

31 ''' 

32 pass 

33 

34 

35class Str_(str): 

36 '''Extended, I{callable} C{str} class, not nameable. 

37 

38 @see: Nameable and callable class L{pygeodesy.Str}. 

39 ''' 

40 def join_(self, *args): 

41 '''Join all positional B{C{args}} like C{self.join(B{args})}. 

42 

43 @return: All B{C{args}} joined by this instance (L{Str_}). 

44 

45 @note: An other L{Str_} instance is returned to make the 

46 result re-callable. 

47 ''' 

48 return Str_(str.join(self, map(str, args))) # re-callable 

49 

50 __call__ = join_ 

51 

52NN = Str_('') # PYCHOK Nomen Nescio <https://Wiktionary.org/wiki/N.N.> 

53 

54 

55class _Prefix(Str_): 

56 '''(INTERNAL) Extended C{str} for prefix. 

57 ''' 

58 def __call__(self, *args): 

59 '''Join C{self} plus all B{C{args}} like C{" ".join((self,) + B{args})}. 

60 ''' 

61 return _SPACE_.join_(self, *args) # re-callable 

62 

63 

64class _PyPy__(str): # overwritten by singleton below 

65 '''(INTERNAL) Extended C{str} for C{"PyPy"} and version. 

66 ''' 

67 def __call__(self, version=NN): 

68 '''Return C{"PyPy <version>"} or C{NN}. 

69 ''' 

70 v = version or _sys.version 

71 if _PyPy__ in v: 

72 v = v.split(_PyPy__)[1].split(None, 1)[0] # == _DOT_.join(_sys.pypy_version_info[:3]) 

73 return NN(_PyPy__, v) 

74 else: 

75 return NN 

76 

77 

78class _Python_(str): # overwritten by singleton below 

79 '''(INTERNAL) Extended C{str} for C{"Python"} and version. 

80 ''' 

81 def __call__(self, version=NN): 

82 '''Return C{"Python <version>"}. 

83 ''' 

84 v = version or _sys.version 

85 return _SPACE_(self, v.split(None, 1)[0]) 

86 

87 

88class _Range(str): 

89 '''(INTERNAL) Extended C{str} for C{range} strings. 

90 ''' 

91 def __call__(self, lo, hi, lopen=False, ropen=False, 

92 prec=0, sep=_COMMASPACE_): 

93 '''Return the range as C{"(lo, hi)"}, C{"(lo, hi]"}, 

94 C{"[lo, hi)"} or C{"[lo, hi]"}. 

95 ''' 

96 from pygeodesy.streprs import Fmt 

97 r = NN(Fmt.f(lo, prec=prec), sep, 

98 Fmt.f(hi, prec=prec)) 

99 f = (Fmt.PAREN if ropen else Fmt.LOPEN) if lopen else \ 

100 (Fmt.ROPEN if ropen else Fmt.SQUARE) 

101 return f(r) 

102 

103 

104class _Slicer(str): 

105 '''(INTERNAL) String slicer C{.fromX} or C{.tillY}. 

106 ''' 

107 def __getattr__(self, name): # .fromX, .tillY 

108 n = len(name) - 4 

109 if n > 0: 

110 # assert len('till') == len(_from_) == 4 

111 if name.startswith('till'): 

112 i = self.find(name[4:]) 

113 return self if i < 0 else _Slicer(self[:i + n]) 

114 elif name.startswith(_from_): 

115 i = self.find(name[4:]) 

116 return self if i < 0 else _Slicer(self[i:]) 

117 return str.__getattr__(self, name) # PYCHOK no cover 

118 

119 

120class MISSING(object): 

121 '''(INTERNAL) Singleton C{str}. 

122 ''' 

123 def toRepr(self, **unused): 

124 return self.__class__.__name__ 

125 

126 __repr__ = __str__ = toStr = toRepr 

127 

128MISSING = MISSING() # PYCHOK singleton 

129MISSING.__name__ = str(MISSING) 

130 

131# __DUNDER__-style names would get mangled in classes 

132_0_ = '0' # PYCHOK 'zero' 

133_0to9_ = '0123456789' # PYCHOK OK 

134_1_ = '1' # PYCHOK OK 

135_2_ = '2' # PYCHOK OK 

136_3_ = '3' # PYCHOK OK 

137_4_ = '4' # PYCHOK OK 

138_a_ = 'a' # PYCHOK OK 

139_A_ = 'A' # PYCHOK OK 

140_a12_ = 'a12' # PYCHOK OK 

141_area_ = 'area' # PYCHOK OK 

142_Airy1830_ = 'Airy1830' # PYCHOK OK 

143_AiryModified_ = 'AiryModified' # PYCHOK OK 

144_ambiguous_ = 'ambiguous' # PYCHOK OK 

145_AMPERSAND_ = Str_('&') # PYCHOK OK 

146_an_ = 'an' # PYCHOK OK 

147_and_ = 'and' # PYCHOK OK 

148# _AND_ = _AMPERSAND_ # PYCHOK OK 

149_angle_ = 'angle' # PYCHOK OK 

150_antipodal_ = 'antipodal' # PYCHOK OK 

151_areaOf_ = 'areaOf' # PYCHOK OK 

152_arg_ = 'arg' # PYCHOK OK 

153# _ASTERISK_ = _STAR_ # PYCHOK OK 

154_at_ = 'at' # PYCHOK OK 

155_AT_ = Str_('@') # PYCHOK OK 

156_AtoZnoIO_ = _Slicer('ABCDEFGHJKLMNPQRSTUVWXYZ') # PYCHOK in .gars, .mgrs and .wgrs 

157_attribute_ = 'attribute' # PYCHOK OK 

158_azi1_ = 'azi1' # PYCHOK OK 

159_azi12_ = 'azi12' # PYCHOK OK 

160_azi2_ = 'azi2' # PYCHOK OK 

161_azimuth_ = 'azimuth' # PYCHOK OK 

162_b_ = 'b' # PYCHOK OK 

163_B_ = 'B' # PYCHOK OK 

164_BACKSLASH_ = Str_('\\') # PYCHOK OK 

165_band_ = 'band' # PYCHOK OK 

166_BANG_ = Str_('!') # PYCHOK OK 

167_BAR_ = Str_('|') # PYCHOK OK 

168_bearing_ = 'bearing' # PYCHOK OK 

169_Bessel1841_ = 'Bessel1841' # PYCHOK OK 

170_beta_ = 'beta' # PYCHOK OK 

171_by_ = 'by' # PYCHOK OK 

172_c_ = 'c' # PYCHOK OK 

173_C_ = 'C' # PYCHOK OK 

174_cartesian_ = 'cartesian' # PYCHOK OK 

175_center_ = 'center' # PYCHOK OK 

176# _CIRCUMFLEX_ = Str_('^') # PYCHOK OK 

177_Clarke1866_ = 'Clarke1866' # PYCHOK OK 

178_Clarke1880IGN_ = 'Clarke1880IGN' # PYCHOK OK 

179_clip_ = 'clip' # PYCHOK OK 

180_clipid_ = 'clipid' # PYCHOK OK 

181_coincident_ = 'coincident' # PYCHOK OK 

182_colinear_ = 'colinear' # PYCHOK OK 

183_COLON_ = Str_(':') # PYCHOK OK 

184_COLONSPACE_ = Str_(': ') # PYCHOK OK 

185_COMMA_ = Str_(',') # PYCHOK OK 

186_COMMASPACE_ = Str_(_COMMASPACE_) # PYCHOK OK 

187_composite_ = 'composite' # PYCHOK OK 

188_concentric_ = 'concentric' # PYCHOK OK 

189_convergence_ = _Prefix('convergence') # PYCHOK OK 

190_conversion_ = 'conversion' # PYCHOK OK 

191_convex_ = 'convex' # PYCHOK OK 

192_cubic_ = 'cubic' # PYCHOK OK 

193_d_ = 'd' # PYCHOK OK 

194_D_ = 'D' # PYCHOK OK 

195_DASH_ = Str_('-') # PYCHOK == _MINUS_ 

196_datum_ = 'datum' # PYCHOK OK 

197_decode3_ = 'decode3' # PYCHOK OK 

198_deg_ = 'deg' # PYCHOK OK 

199_degrees_ = 'degrees' # PYCHOK OK 

200_degrees2_ = 'degrees2' # PYCHOK SQUARED 

201_delta_ = 'delta' # PYCHOK OK 

202_DEPRECATED_ = 'DEPRECATED' # PYCHOK OK 

203_DEQUALSPACED_ = Str_(' == ') # PYCHOK OK 

204_distance_ = 'distance' # PYCHOK OK 

205_distant_ = _Prefix('distant') # PYCHOK OK 

206_doesn_t_exist_ = "doesn't exist" # PYCHOK OK 

207_DOT_ = Str_('.') # PYCHOK OK 

208_down_ = 'down' # PYCHOK OK 

209_e_ = 'e' # PYCHOK OK 

210_E_ = 'E' # PYCHOK OK 

211_earth_ = 'earth' # PYCHOK OK 

212_east_ = 'east' # PYCHOK OK 

213_easting_ = 'easting' # PYCHOK OK 

214_ecef_ = 'ecef' # PYCHOK OK 

215_edge_ = 'edge' # PYCHOK OK 

216_elevation_ = 'elevation' # PYCHOK OK 

217_ELLIPSIS_ = Str_('...') # PYCHOK OK 

218_ELLIPSIS4_ = Str_('....') # PYCHOK OK 

219# _ELLIPSISPACED_ = Str_(' ... ') # PYCHOK <https://www.ThePunctuationGuide.com/ellipses.html> 

220_ellipsoid_ = 'ellipsoid' # PYCHOK OK 

221_ellipsoidal_ = 'ellipsoidal' # PYCHOK OK 

222_enabled_ = 'enabled' # PYCHOK OK 

223_encode_ = 'encode' # PYCHOK OK 

224_end_ = 'end' # PYCHOK OK 

225_epoch_ = 'epoch' # PYCHOK OK 

226_eps_ = 'eps' # PYCHOK OK 

227_EQUAL_ = Str_('=') # PYCHOK OK 

228_EQUALSPACED_ = Str_(' = ') # PYCHOK OK 

229_Error_ = 'Error' # PYCHOK OK 

230_exceed_PI_radians_ = 'exceed PI radians' # PYCHOK OK 

231_exceeds_ = _Prefix('exceeds') # PYCHOK OK 

232# _EXCLAMATION_ = _BANG_ # PYCHOK OK 

233_exists_ = 'exists' # PYCHOK OK 

234_f_ = 'f' # PYCHOK OK 

235_F_ = 'F' # PYCHOK OK 

236_feet_ = 'feet' # PYCHOK OK 

237_few_ = 'few' # PYCHOK OK 

238_fi_ = 'fi' # PYCHOK OK 

239_finite_ = 'finite' # PYCHOK OK 

240_from_ = 'from' # PYCHOK OK 

241_g_ = 'g' # PYCHOK OK 

242_gamma_ = 'gamma' # PYCHOK OK 

243_GRS80_ = 'GRS80' # PYCHOK OK 

244_h_ = 'h' # PYCHOK OK 

245_H_ = 'H' # PYCHOK OK 

246_HASH_ = '#' # PYCHOK OK 

247_height_ = 'height' # PYCHOK OK 

248_hemipole_ = 'hemipole' # PYCHOK OK 

249_i_ = 'i' # PYCHOK OK 

250_immutable_ = 'immutable' # PYCHOK OK 

251_in_ = 'in' # PYCHOK OK 

252_incompatible_ = 'incompatible' # PYCHOK OK 

253_INF_ = 'INF' # PYCHOK OK 

254_infinite_ = 'infinite' # PYCHOK _not_finite_ 

255_initial_ = 'initial' # PYCHOK OK 

256_inside_ = 'inside' # PYCHOK OK 

257_insufficient_ = 'insufficient' # PYCHOK OK 

258_intersection_ = 'intersection' # PYCHOK OK 

259_Intl1924_ = 'Intl1924' # PYCHOK OK 

260_invalid_ = 'invalid' # PYCHOK OK 

261_invokation_ = 'invokation' # PYCHOK OK 

262_isclockwise_ = 'isclockwise' # PYCHOK OK 

263_ispolar_ = 'ispolar' # PYCHOK OK 

264_j_ = 'j' # PYCHOK OK 

265_k0_ = 'k0' # PYCHOK OK 

266_kind_ = 'kind' # PYCHOK OK 

267_knots_ = 'knots' # PYCHOK OK 

268_Krassovski1940_ = 'Krassovski1940' # PYCHOK OK 

269_Krassowsky1940_ = 'Krassowsky1940' # PYCHOK OK 

270_LANGLE_ = '<' # PYCHOK OK 

271_lam_ = 'lam' # PYCHOK OK 

272_lat_ = 'lat' # PYCHOK OK 

273_lat0_ = 'lat0' # PYCHOK OK 

274_lat1_ = 'lat1' # PYCHOK OK 

275_lat2_ = 'lat2' # PYCHOK OK 

276_latlon_ = 'latlon' # PYCHOK OK 

277_LatLon_ = 'LatLon' # PYCHOK OK 

278_LCURLY_ = '{' # PYCHOK LBRACE 

279_len_ = 'len' # PYCHOK OK 

280_limit_ = 'limit' # PYCHOK OK 

281_line_ = 'line' # PYCHOK OK 

282_linear_ = 'linear' # PYCHOK OK 

283_LPAREN_ = '(' # PYCHOK OK 

284_lon_ = 'lon' # PYCHOK OK 

285_lon0_ = 'lon0' # PYCHOK OK 

286_lon1_ = 'lon1' # PYCHOK OK 

287_lon2_ = 'lon2' # PYCHOK OK 

288_low_ = 'low' # PYCHOK OK 

289_LSQUARE_ = '[' # PYCHOK LBRACK 

290_ltp_ = 'ltp' # PYCHOK OK 

291_m_ = 'm' # PYCHOK OK 

292_M_ = 'M' # PYCHOK OK 

293_m12_ = 'm12' # PYCHOK OK 

294_M12_ = 'M12' # PYCHOK OK 

295_M21_ = 'M21' # PYCHOK OK 

296_MANT_DIG_ = 'MANT_DIG' # PYCHOK OK 

297_MAX_ = 'MAX' # PYCHOK OK 

298_mean_ = 'mean' # PYCHOK OK 

299_meanOf_ = 'meanOf' # PYCHOK OK 

300_meridional_ = 'meridional' # PYCHOK OK 

301_meter_ = 'meter' # PYCHOK OK 

302_meter2_ = 'meter2' # PYCHOK SQUARED 

303_MGRS_ = 'MGRS' # PYCHOK OK 

304_MIN_ = 'MIN' # PYCHOK OK 

305_MINUS_ = _DASH_ # PYCHOK OK 

306_module_ = 'module' # PYCHOK OK 

307_n_ = 'n' # PYCHOK OK 

308_N_ = 'N' # PYCHOK OK 

309_n_a_ = 'n/a' # PYCHOK OK 

310_N_A_ = 'N/A' # PYCHOK OK 

311_NAD27_ = 'NAD27' # PYCHOK OK 

312_NAD83_ = 'NAD83' # PYCHOK OK 

313_name_ = 'name' # PYCHOK OK 

314_NAN_ = 'NAN' # PYCHOK OK 

315_near_ = _Dash('near') # PYCHOK OK 

316_nearestOn2_ = 'nearestOn2' # PYCHOK OK 

317_negative_ = 'negative' # PYCHOK OK 

318_NL_ = Str_('\n') # PYCHOK OK 

319_NLATvar_ = Str_(_NL_ + '@var ') # PYCHOK OK 

320_NLHASH_ = Str_(_NL_ + '# ') # PYCHOK OK 

321# _NLNL_ = _DNL_ # PYCHOK OK 

322_NN_ = 'NN' # PYCHOK OK 

323_no_ = _Prefix('no') # PYCHOK OK 

324_north_ = 'north' # PYCHOK OK 

325_northing_ = 'northing' # PYCHOK OK 

326_NorthPole_ = 'NorthPole' # PYCHOK OK 

327_not_ = _Prefix('not') # PYCHOK OK 

328_NOTEQUAL_ = _BANG_ + _EQUAL_ # PYCHOK OK 

329_not_finite_ = 'not finite' # PYCHOK _not_(_finite_), _infinite_ 

330_not_scalar_ = 'not scalar' # PYCHOK _not_(_scalar_) 

331_NTF_ = 'NTF' # PYCHOK OK 

332_null_ = 'null' # PYCHOK OK 

333_number_ = 'number' # PYCHOK OK 

334_numpy_ = 'numpy' # PYCHOK OK 

335_Nv00_ = 'Nv00' # PYCHOK OK 

336_of_ = 'of' # PYCHOK OK 

337_on_ = 'on' # PYCHOK OK 

338_opposite_ = 'opposite' # PYCHOK OK 

339_or_ = 'or' # PYCHOK OK 

340_other_ = 'other' # PYCHOK OK 

341_outside_ = 'outside' # PYCHOK OK 

342_overlap_ = 'overlap' # PYCHOK OK 

343_parallel_ = 'parallel' # PYCHOK OK 

344_PERCENT_ = '%' # PYCHOK OK 

345_PERCENTDOTSTAR_ = '%.*' # PYCHOK _DOT_(_PERCENT_, _STAR_) 

346_phi_ = 'phi' # PYCHOK OK 

347_PLUS_ = Str_('+') # PYCHOK OK 

348_PLUSMINUS_ = _PLUS_ + _MINUS_ # PYCHOK OK 

349_point_ = 'point' # PYCHOK OK 

350_points_ = 'points' # PYCHOK OK 

351_pole_ = 'pole' # PYCHOK OK 

352_precision_ = 'precision' # PYCHOK OK 

353_prime_vertical_ = 'prime_vertical' # PYCHOK OK 

354_pygeodesy_ = 'pygeodesy' # PYCHOK OK 

355_pygeodesy_abspath_ = 'pygeodesy_abspath' # PYCHOK OK 

356_PyPy__ = _PyPy__('PyPy ') # PYCHOK + _SPACE_ 

357_Python_ = _Python_('Python') # PYCHOK singleton 

358_python_ = 'python' # PYCHOK OK 

359_QUOTE1_ = "'" # PYCHOK OK 

360_QUOTE2_ = '"' # PYCHOK OK 

361# _QUOTE3_ = "'''" # PYCHOK OK 

362# _QUOTE6_ = '"""' # PYCHOK OK 

363_R_ = 'R' # PYCHOK OK 

364_radians_ = 'radians' # PYCHOK OK 

365_radians2_ = 'radians2' # PYCHOK SQUARED 

366_radius_ = 'radius' # PYCHOK OK 

367_radius1_ = 'radius1' # PYCHOK OK 

368_radius2_ = 'radius2' # PYCHOK OK 

369_range_ = _Range('range') # PYCHOK OK 

370_RANGLE_ = '>' # PYCHOK OK 

371_RCURLY_ = '}' # PYCHOK RBRACE 

372_reciprocal_ = 'reciprocal' # PYCHOK OK 

373_reframe_ = 'reframe' # PYCHOK OK 

374_resolution_ = 'resolution' # PYCHOK OK 

375_rIn_ = 'rIn' # PYCHOK OK 

376_RPAREN_ = ')' # PYCHOK OK 

377_RSQUARE_ = ']' # PYCHOK RBRACK 

378_s_ = 's' # PYCHOK OK 

379_S_ = 'S' # PYCHOK OK 

380_s12_ = 's12' # PYCHOK OK 

381_S12_ = 'S12' # PYCHOK OK 

382_scalar_ = 'scalar' # PYCHOK OK 

383_scale_ = 'scale' # PYCHOK OK 

384_scale0_ = 'scale0' # PYCHOK OK 

385_scipy_ = 'scipy' # PYCHOK OK 

386_semi_circular_ = 'semi-circular' # PYCHOK OK 

387_sep_ = 'sep' # PYCHOK OK 

388_singular_ = 'singular' # PYCHOK OK 

389_SLASH_ = Str_('/') # PYCHOK OK 

390_small_ = 'small' # PYCHOK OK 

391_Sphere_ = 'Sphere' # PYCHOK OK 

392_spherical_ = 'spherical' # PYCHOK OK 

393_SouthPole_ = 'SouthPole' # PYCHOK OK 

394_SPACE_ = Str_(' ') # PYCHOK OK 

395_specified_ = 'specified' # PYCHOK OK 

396_STAR_ = Str_('*') # PYCHOK OK 

397_start_ = 'start' # PYCHOK OK 

398_std_ = 'std' # PYCHOK OK 

399_stdev_ = 'stdev' # PYCHOK OK 

400_supported_ = 'supported' # PYCHOK OK 

401_tbd_ = 'tbd' # PYCHOK OK 

402_TILDE_ = '~' # PYCHOK OK 

403_to_ = 'to' # PYCHOK OK 

404_tolerance_ = _Prefix('tolerance') # PYCHOK OK 

405_too_ = _Prefix('too') # PYCHOK OK 

406_transform_ = 'transform' # PYCHOK OK 

407_UNDER_ = Str_('_') # PYCHOK OK 

408_units_ = 'units' # PYCHOK OK 

409_UNUSED_ = 'UNUSED' # PYCHOK OK 

410_up_ = 'up' # PYCHOK OK 

411_UPS_ = 'UPS' # PYCHOK OK 

412_utf_8_ = 'utf-8' # PYCHOK OK 

413_UTM_ = 'UTM' # PYCHOK OK 

414_V_ = 'V' # PYCHOK OK 

415_valid_ = 'valid' # PYCHOK OK 

416_value_ = 'value' # PYCHOK OK 

417_version_ = 'version' # PYCHOK OK 

418_vs_ = 'vs' # PYCHOK OK 

419_W_ = 'W' # PYCHOK OK 

420_WGS72_ = 'WGS72' # PYCHOK OK 

421_WGS84_ = 'WGS84' # PYCHOK OK 

422_width_ = 'width' # PYCHOK OK 

423_with_ = 'with' # PYCHOK OK 

424_x_ = 'x' # PYCHOK OK 

425_X_ = 'X' # PYCHOK OK 

426_xyz_ = 'xyz' # PYCHOK OK 

427_y_ = 'y' # PYCHOK OK 

428_Y_ = 'Y' # PYCHOK OK 

429_z_ = 'z' # PYCHOK OK 

430_Z_ = 'Z' # PYCHOK OK 

431_zone_ = 'zone' # PYCHOK OK 

432 

433_EW_ = _E_ + _W_ # PYCHOK common cardinals 

434_NE_ = _N_ + _E_ # PYCHOK positive ones 

435_NS_ = _N_ + _S_ # PYCHOK OK 

436_NSEW_ = _NS_ + _EW_ # PYCHOK OK 

437_NW_ = _N_ + _W_ # PYCHOK OK 

438_SE_ = _S_ + _E_ # PYCHOK OK 

439_SW_ = _S_ + _W_ # PYCHOK negative ones 

440# _NESW_ = _NE_ + _SW_ # PYCHOK clockwise 

441 

442_DDOT_ = Str_(_DOT_ * 2) # PYCHOK OK 

443# _DEQUAL_ = Str_(_EQUAL_ * 2) # PYCHOK OK 

444_DNL_ = Str_(_NL_ * 2) # PYCHOK OK 

445# _DSLASH_ = Str_(_SLASH_ * 2) # PYCHOK OK 

446# _DSTAR_ = Str_(_STAR_ * 2) # PYCHOK OK 

447_DUNDER_ = Str_(_UNDER_ * 2) # PYCHOK OK 

448 

449_LR_PAIRS = {_LANGLE_: _RANGLE_, 

450 _LCURLY_: _RCURLY_, 

451 _LPAREN_: _RPAREN_, 

452 _LSQUARE_: _RSQUARE_} # PYCHOK OK 

453 

454 

455def _dunder_nameof(inst, *dflt): 

456 '''(INTERNAL) Get the double_underscore __name__ attr. 

457 ''' 

458 try: 

459 return inst.__name__ 

460 except AttributeError: 

461 pass 

462 return dflt[0] if dflt else inst.__class__.__name__ 

463 

464 

465def _enquote(strs, quote=_QUOTE2_): # in .basics, .solveBase 

466 '''(INTERNAL) Enquote a string containing whitespace. 

467 ''' 

468 if len(strs.split()) > 1: 

469 strs = NN(quote, strs, quote) 

470 return strs 

471 

472 

473def _headof(name): 

474 '''(INTERNAL) Get the head name of qualified C{name} or the C{name}. 

475 ''' 

476 i = name.find(_DOT_) 

477 return name if i < 0 else name[:i] 

478 

479 

480def _is(a, b): # PYCHOK no cover 

481 '''(INTERNAL) C{a is b}? in C{PyPy} 

482 ''' 

483 return (a == b) if _isPyPy() else (a is b) 

484 

485 

486def _isPyPy(): 

487 '''(INTERNAL) Is this C{PyPy}? 

488 ''' 

489 # platform.python_implementation() == 'PyPy' 

490 return _pythonarchine()[0].startswith(_PyPy__) 

491 

492 

493def _load_lib(name): 

494 '''(INTERNAL) Load a C{dylib}, B{C{name}} must startwith('lib'). 

495 ''' 

496 # macOS 11+ (aka 10.16) no longer provides direct loading of 

497 # system libraries. As a result, C{ctypes.util.find_library} 

498 # will not find any library, unless previously installed by a 

499 # low-level dlopen(name) call (with the library base C{name}). 

500 from ctypes import CDLL 

501 from ctypes.util import find_library 

502 

503 ns = find_library(name), name 

504 if _sys.platform[:6] == 'darwin': # and os.name == 'posix' 

505 from ctypes import _dlopen, DEFAULT_MODE 

506 from os.path import join 

507 ns += (_DOT_(name, 'dylib'), 

508 _DOT_(name, 'framework'), join( 

509 _DOT_(name, 'framework'), name)) 

510 else: # non-macOS 

511 DEFAULT_MODE = 0 

512 

513 def _dlopen(*unused): 

514 return True 

515 

516 for n in ns: 

517 try: 

518 if n and _dlopen(n, DEFAULT_MODE): # pre-load handle 

519 lib = CDLL(n) # == ctypes.cdll.LoadLibrary(n) 

520 if lib._name: # has a qualified name 

521 return lib 

522 except (AttributeError, OSError): 

523 pass 

524 

525 return None # raise OSError 

526 

527 

528def machine(): 

529 '''Return standard C{platform.machine}, but distinguishing Intel I{native} 

530 from Intel I{emulation} on Apple Silicon (on macOS only). 

531 

532 @return: Machine C{'arm64'} for Apple Silicon I{native}, C{'x86_64'} 

533 for Intel I{native}, C{"arm64_x86_64"} for Intel I{emulation}, 

534 etc. (C{str} with C{comma}s replaced by C{underscore}s). 

535 ''' 

536 return _platform2()[1] 

537 

538 

539def _platform2(sep=NN): 

540 '''(INTERNAL) Get platform architecture and machine as C{2-list} or C{str}. 

541 ''' 

542 L = _pf2List 

543 if not L: 

544 import platform 

545 m = platform.machine() # ARM64, arm64, x86_64, iPhone13,2, etc. 

546 m = m.replace(_COMMA_, _UNDER_) 

547 if m.lower() == 'x86_64': # on Intel or Rosetta2 ... 

548 v = platform.mac_ver() # ... and only on macOS ... 

549 if v and _version2(v[0]) > (10, 15): # ... 11+ aka 10.16 

550 # <https://Developer.Apple.com/forums/thread/659846> 

551 if _sysctl_uint('sysctl.proc_translated') == 1: # and \ 

552# _sysctl_uint('hw.optional.arm64') == 1: # PYCHOK indent 

553 m = _UNDER_('arm64', m) # Apple Si emulating Intel x86-64 

554 L[:] = [platform.architecture()[0], # bits 

555 m] # arm64, arm64_x86_64, x86_64, etc. 

556 return sep.join(L) if sep else L # 2-list() 

557 

558 

559def _pythonarchine(sep=NN): # in test/bases.py versions 

560 '''(INTERNAL) Get PyPy and Python versions and C{_platform2} as C{3- or 4-list} or C{str}. 

561 ''' 

562 L = _Py3List 

563 if not L: 

564 v = _sys.version 

565 L[:] = [_Python_(v)] + _platform2() 

566 pypy = _PyPy__(v) 

567 if pypy: 

568 L.insert(0, pypy) 

569 return sep.join(L) if sep else L # 3- or 4-list 

570 

571 

572def _sysctl_uint(name): 

573 '''(INTERNAL) Get an unsigned int sysctl item by name, use on macOS ONLY! 

574 ''' 

575 libc = _load_lib('libc') 

576 if libc: # <https://StackOverflow.com/questions/759892/python-ctypes-and-sysctl> 

577 from ctypes import byref, c_char_p, c_size_t, c_uint, sizeof # get_errno 

578 n = name if str is bytes else bytes(name, _utf_8_) # PYCHOK isPython2 = str is bytes 

579 u = c_uint(0) 

580 z = c_size_t(sizeof(u)) 

581 r = libc.sysctlbyname(c_char_p(n), byref(u), byref(z), None, c_size_t(0)) 

582 else: # could find or load 'libc' 

583 r = -2 

584 return int(r if r else u.value) # -1 ENOENT error, -2 no libc 

585 

586 

587def _tailof(name): 

588 '''(INTERNAL) Get the base name of qualified C{name} or the C{name}. 

589 ''' 

590 i = name.rfind(_DOT_) + 1 

591 return name[i:] if i > 0 else name 

592 

593 

594def _under(name): # PYCHOK in .datums, .auxilats, .ups, .utm, .utmupsBase, ... 

595 '''(INTERNAL) Prefix C{name} with I{underscore}. 

596 ''' 

597 return name if name.startswith(_UNDER_) else NN(_UNDER_, name) 

598 

599 

600def _usage(file_py, *args): # in .etm 

601 '''(INTERNAL) Build "usage: python -m ..." cmd line for module B{C{file_py}}. 

602 ''' 

603 import os 

604 m = os.path.dirname(file_py).replace(os.getcwd(), _ELLIPSIS_) \ 

605 .replace(os.sep, _DOT_).strip() 

606 b, x = os.path.splitext(os.path.basename(file_py)) 

607 if x == '.py' and b != '__main__': 

608 m = _DOT_(m or _pygeodesy_, b) 

609 p = NN(_python_, _sys.version_info[0]) 

610 return NN('usage', _SPACE_(_COLON_, p, '-m', _enquote(m), *args)) 

611 

612 

613def _version2(version, n=2): 

614 '''(INTERNAL) Split C{B{version} str} into a C{1-, 2- or 3-tuple} of C{int}s. 

615 ''' 

616 t = _version_ints(version.split(_DOT_, 2)) 

617 if len(t) < n: 

618 t += (0,) * n 

619 return t[:n] 

620 

621 

622def _version_info(package): # in .Base.karney, .basics 

623 '''(INTERNAL) Get the C{package.__version_info__} as a 2- or 

624 3-tuple C{(major, minor, revision)} if C{int}s. 

625 ''' 

626 try: 

627 return _version_ints(package.__version_info__) 

628 except AttributeError: 

629 return _version2(package.__version__.strip(), n=3) 

630 

631 

632def _version_ints(vs): 

633 # helper for _version2 and _version_info above 

634 

635 def _ints(vs): 

636 for v in vs: 

637 try: 

638 yield int(v.strip()) 

639 except (TypeError, ValueError): 

640 pass 

641 

642 return tuple(_ints(vs)) 

643 

644 

645__all__ = (_NN_, # not MISSING! 

646 Str_.__name__, # classes 

647 machine.__name__) # in .lazily 

648__version__ = '24.03.20' 

649 

650if __name__ == '__main__': 

651 

652 from pygeodesy import itemsorted, printf 

653 

654 t = b = 0 

655 for n, v in itemsorted(locals(), asorted=False, reverse=True): 

656 if n.endswith(_UNDER_) and n.startswith(_UNDER_) and \ 

657 not n.startswith(_DUNDER_): 

658 t += 1 

659 b += len(v) 

660 m = n[1:-1] 

661 if m != v and m.replace(_UNDER_, _SPACE_) != v: 

662 printf('%4d: %s = %r', t, n, v) 

663 n = len(locals()) 

664 printf('%4d (%d) names, %s chars total, %.2f chars avg', t, n, b, float(b) / t, nl=1) 

665 

666# **) MIT License 

667# 

668# Copyright (C) 2016-2024 -- mrJean1 at Gmail -- All Rights Reserved. 

669# 

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

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

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

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

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

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

676# 

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

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

679# 

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

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

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

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

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

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

686# OTHER DEALINGS IN THE SOFTWARE.