Coverage for pygeodesy/interns.py: 97%

444 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 

7 

8_COMMASPACE_ = ', ' # overriden below 

9_pf2List = [] # cached _platform2 list 

10_Py3List = [] # cached _pythonarchine list 

11 

12 

13class _Dash(str): 

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

15 ''' 

16 def __call__(self, *args): 

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

18 ''' 

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

20 

21 

22class _Int(int): 

23 '''(INTERNAL) Unique C{int}. 

24 ''' 

25 pass 

26 

27 

28class Str_(str): 

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

30 

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

32 ''' 

33 def join_(self, *args): 

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

35 

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

37 

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

39 result re-callable. 

40 ''' 

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

42 

43 __call__ = join_ 

44 

45NN = Str_('') # PYCHOK Nomen Nescio <https://Wiktionary.org/wiki/N.N.> 

46 

47 

48class _Prefix(Str_): 

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

50 ''' 

51 def __call__(self, *args): 

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

53 ''' 

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

55 

56 

57class _PyPy__(str): # overwritten by singleton below 

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

59 ''' 

60 def __call__(self, version=NN): 

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

62 ''' 

63 v = version or _sys.version 

64 if _PyPy__ in v: 

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

66 return NN(_PyPy__, v) 

67 else: 

68 return NN 

69 

70 

71class _Python_(str): # overwritten by singleton below 

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

73 ''' 

74 def __call__(self, version=NN): 

75 '''Return C{"Python <version>"}. 

76 ''' 

77 v = version or _sys.version 

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

79 

80 

81class _Range(str): 

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

83 ''' 

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

85 prec=0, sep=_COMMASPACE_): 

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

87 C{"[lo, hi)"} or C{"[lo, hi]"}. 

88 ''' 

89 from pygeodesy.streprs import Fmt 

90 r = NN(Fmt.f(lo, prec=prec), sep, 

91 Fmt.f(hi, prec=prec)) 

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

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

94 return f(r) 

95 

96 

97class _Slicer(str): 

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

99 ''' 

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

101 n = len(name) - 4 

102 if n > 0: 

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

104 if name.startswith('till'): 

105 i = self.find(name[4:]) 

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

107 elif name.startswith(_from_): 

108 i = self.find(name[4:]) 

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

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

111 

112 

113class MISSING(object): 

114 '''(INTERNAL) Singleton C{str}. 

115 ''' 

116 def toRepr(self, **unused): 

117 return self.__class__.__name__ 

118 

119 __repr__ = __str__ = toStr = toRepr 

120 

121MISSING = MISSING() # PYCHOK singleton 

122MISSING.__name__ = str(MISSING) 

123 

124# __DUNDER__-style names would get mangled in classes 

125_0_ = '0' # PYCHOK 'zero' 

126_0to9_ = '0123456789' # PYCHOK OK 

127_1_ = '1' # PYCHOK OK 

128_2_ = '2' # PYCHOK OK 

129_3_ = '3' # PYCHOK OK 

130_4_ = '4' # PYCHOK OK 

131_a_ = 'a' # PYCHOK OK 

132_A_ = 'A' # PYCHOK OK 

133_a12_ = 'a12' # PYCHOK OK 

134_area_ = 'area' # PYCHOK OK 

135_Airy1830_ = 'Airy1830' # PYCHOK OK 

136_AiryModified_ = 'AiryModified' # PYCHOK OK 

137_ambiguous_ = 'ambiguous' # PYCHOK OK 

138_AMPERSAND_ = Str_('&') # PYCHOK OK 

139_an_ = 'an' # PYCHOK OK 

140_and_ = 'and' # PYCHOK OK 

141# _AND_ = _AMPERSAND_ # PYCHOK OK 

142_angle_ = 'angle' # PYCHOK OK 

143_antipodal_ = 'antipodal' # PYCHOK OK 

144_areaOf_ = 'areaOf' # PYCHOK OK 

145_arg_ = 'arg' # PYCHOK OK 

146_at_ = 'at' # PYCHOK OK 

147_AT_ = Str_('@') # PYCHOK OK 

148_AtoZnoIO_ = _Slicer('ABCDEFGHJKLMNPQRSTUVWXYZ') # PYCHOK in .gars, .mgrs and .wgrs 

149_attribute_ = 'attribute' # PYCHOK OK 

150_azi1_ = 'azi1' # PYCHOK OK 

151_azi12_ = 'azi12' # PYCHOK OK 

152_azi2_ = 'azi2' # PYCHOK OK 

153_azimuth_ = 'azimuth' # PYCHOK OK 

154_b_ = 'b' # PYCHOK OK 

155_B_ = 'B' # PYCHOK OK 

156_BACKSLASH_ = Str_('\\') # PYCHOK OK 

157_band_ = 'band' # PYCHOK OK 

158_BANG_ = Str_('!') # PYCHOK OK 

159_BAR_ = Str_('|') # PYCHOK OK 

160_bearing_ = 'bearing' # PYCHOK OK 

161_Bessel1841_ = 'Bessel1841' # PYCHOK OK 

162_beta_ = 'beta' # PYCHOK OK 

163_by_ = 'by' # PYCHOK OK 

164_c_ = 'c' # PYCHOK OK 

165_C_ = 'C' # PYCHOK OK 

166_cartesian_ = 'cartesian' # PYCHOK OK 

167_center_ = 'center' # PYCHOK OK 

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

169_Clarke1866_ = 'Clarke1866' # PYCHOK OK 

170_Clarke1880IGN_ = 'Clarke1880IGN' # PYCHOK OK 

171_clip_ = 'clip' # PYCHOK OK 

172_clipid_ = 'clipid' # PYCHOK OK 

173_coincident_ = 'coincident' # PYCHOK OK 

174_colinear_ = 'colinear' # PYCHOK OK 

175_COLON_ = Str_(':') # PYCHOK OK 

176_COLONSPACE_ = Str_(': ') # PYCHOK OK 

177_COMMA_ = Str_(',') # PYCHOK OK 

178_COMMASPACE_ = Str_(_COMMASPACE_) # PYCHOK OK 

179_composite_ = 'composite' # PYCHOK OK 

180_concentric_ = 'concentric' # PYCHOK OK 

181_convergence_ = _Prefix('convergence') # PYCHOK OK 

182_conversion_ = 'conversion' # PYCHOK OK 

183_convex_ = 'convex' # PYCHOK OK 

184_cubic_ = 'cubic' # PYCHOK OK 

185_d_ = 'd' # PYCHOK OK 

186_D_ = 'D' # PYCHOK OK 

187_DASH_ = Str_('-') # PYCHOK == _MINUS_ 

188_datum_ = 'datum' # PYCHOK OK 

189_decode3_ = 'decode3' # PYCHOK OK 

190_deg_ = 'deg' # PYCHOK OK 

191_degrees_ = 'degrees' # PYCHOK OK 

192_degrees2_ = 'degrees2' # PYCHOK SQUARED 

193_delta_ = 'delta' # PYCHOK OK 

194_DEPRECATED_ = 'DEPRECATED' # PYCHOK OK 

195_DEQUALSPACED_ = Str_(' == ') # PYCHOK OK 

196_distance_ = 'distance' # PYCHOK OK 

197_distant_ = _Prefix('distant') # PYCHOK OK 

198_doesn_t_exist_ = "doesn't exist" # PYCHOK OK 

199_DOT_ = Str_('.') # PYCHOK OK 

200_down_ = 'down' # PYCHOK OK 

201_e_ = 'e' # PYCHOK OK 

202_E_ = 'E' # PYCHOK OK 

203_earth_ = 'earth' # PYCHOK OK 

204_east_ = 'east' # PYCHOK OK 

205_easting_ = 'easting' # PYCHOK OK 

206_ecef_ = 'ecef' # PYCHOK OK 

207_edge_ = 'edge' # PYCHOK OK 

208_elevation_ = 'elevation' # PYCHOK OK 

209_ELLIPSIS_ = Str_('...') # PYCHOK OK 

210_ELLIPSIS4_ = Str_('....') # PYCHOK OK 

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

212_ellipsoid_ = 'ellipsoid' # PYCHOK OK 

213_ellipsoidal_ = 'ellipsoidal' # PYCHOK OK 

214_enabled_ = 'enabled' # PYCHOK OK 

215_encode_ = 'encode' # PYCHOK OK 

216_end_ = 'end' # PYCHOK OK 

217_epoch_ = 'epoch' # PYCHOK OK 

218_eps_ = 'eps' # PYCHOK OK 

219_EQUAL_ = Str_('=') # PYCHOK OK 

220_EQUALSPACED_ = Str_(' = ') # PYCHOK OK 

221_Error_ = 'Error' # PYCHOK OK 

222_exceed_PI_radians_ = 'exceed PI radians' # PYCHOK OK 

223_exceeds_ = _Prefix('exceeds') # PYCHOK OK 

224# _EXCLAMATION_ = _BANG_ # PYCHOK OK 

225_exists_ = 'exists' # PYCHOK OK 

226_f_ = 'f' # PYCHOK OK 

227_F_ = 'F' # PYCHOK OK 

228_feet_ = 'feet' # PYCHOK OK 

229_few_ = 'few' # PYCHOK OK 

230_fi_ = 'fi' # PYCHOK OK 

231_finite_ = 'finite' # PYCHOK OK 

232_from_ = 'from' # PYCHOK OK 

233_g_ = 'g' # PYCHOK OK 

234_gamma_ = 'gamma' # PYCHOK OK 

235_GRS80_ = 'GRS80' # PYCHOK OK 

236_h_ = 'h' # PYCHOK OK 

237_H_ = 'H' # PYCHOK OK 

238_HASH_ = '#' # PYCHOK OK 

239_height_ = 'height' # PYCHOK OK 

240_hemipole_ = 'hemipole' # PYCHOK OK 

241_i_ = 'i' # PYCHOK OK 

242_iadd_op_ = '+=' # PYCHOK OK 

243_immutable_ = 'immutable' # PYCHOK OK 

244_in_ = 'in' # PYCHOK OK 

245_incompatible_ = 'incompatible' # PYCHOK OK 

246_INF_ = 'INF' # PYCHOK OK 

247_infinite_ = 'infinite' # PYCHOK _not_finite_ 

248_initial_ = 'initial' # PYCHOK OK 

249_inside_ = 'inside' # PYCHOK OK 

250_insufficient_ = 'insufficient' # PYCHOK OK 

251_intersection_ = 'intersection' # PYCHOK OK 

252_Intl1924_ = 'Intl1924' # PYCHOK OK 

253_invalid_ = 'invalid' # PYCHOK OK 

254_invokation_ = 'invokation' # PYCHOK OK 

255_isclockwise_ = 'isclockwise' # PYCHOK OK 

256_ispolar_ = 'ispolar' # PYCHOK OK 

257_j_ = 'j' # PYCHOK OK 

258_k0_ = 'k0' # PYCHOK OK 

259_kind_ = 'kind' # PYCHOK OK 

260_knots_ = 'knots' # PYCHOK OK 

261_Krassovski1940_ = 'Krassovski1940' # PYCHOK OK 

262_Krassowsky1940_ = 'Krassowsky1940' # PYCHOK OK 

263_LANGLE_ = '<' # PYCHOK OK 

264_lam_ = 'lam' # PYCHOK OK 

265_lat_ = 'lat' # PYCHOK OK 

266_lat0_ = 'lat0' # PYCHOK OK 

267_lat1_ = 'lat1' # PYCHOK OK 

268_lat2_ = 'lat2' # PYCHOK OK 

269_latlon_ = 'latlon' # PYCHOK OK 

270_LatLon_ = 'LatLon' # PYCHOK OK 

271_LCURLY_ = '{' # PYCHOK LBRACE 

272_len_ = 'len' # PYCHOK OK 

273_limit_ = 'limit' # PYCHOK OK 

274_line_ = 'line' # PYCHOK OK 

275_linear_ = 'linear' # PYCHOK OK 

276_LPAREN_ = '(' # PYCHOK OK 

277_lon_ = 'lon' # PYCHOK OK 

278_lon0_ = 'lon0' # PYCHOK OK 

279_lon1_ = 'lon1' # PYCHOK OK 

280_lon2_ = 'lon2' # PYCHOK OK 

281_low_ = 'low' # PYCHOK OK 

282_LSQUARE_ = '[' # PYCHOK LBRACK 

283_ltp_ = 'ltp' # PYCHOK OK 

284_m_ = 'm' # PYCHOK OK 

285_M_ = 'M' # PYCHOK OK 

286_m12_ = 'm12' # PYCHOK OK 

287_M12_ = 'M12' # PYCHOK OK 

288_M21_ = 'M21' # PYCHOK OK 

289_MANT_DIG_ = 'MANT_DIG' # PYCHOK OK 

290_MAX_ = 'MAX' # PYCHOK OK 

291_mean_ = 'mean' # PYCHOK OK 

292_meanOf_ = 'meanOf' # PYCHOK OK 

293_meridional_ = 'meridional' # PYCHOK OK 

294_meter_ = 'meter' # PYCHOK OK 

295_meter2_ = 'meter2' # PYCHOK SQUARED 

296_MGRS_ = 'MGRS' # PYCHOK OK 

297_MIN_ = 'MIN' # PYCHOK OK 

298_MINUS_ = _DASH_ # PYCHOK OK 

299_module_ = 'module' # PYCHOK OK 

300_n_ = 'n' # PYCHOK OK 

301_N_ = 'N' # PYCHOK OK 

302_n_a_ = 'n/a' # PYCHOK OK 

303_N_A_ = 'N/A' # PYCHOK OK 

304_NAD27_ = 'NAD27' # PYCHOK OK 

305_NAD83_ = 'NAD83' # PYCHOK OK 

306_name_ = 'name' # PYCHOK OK 

307_NAN_ = 'NAN' # PYCHOK OK 

308_near_ = _Dash('near') # PYCHOK OK 

309_nearestOn2_ = 'nearestOn2' # PYCHOK OK 

310_negative_ = 'negative' # PYCHOK OK 

311_NL_ = Str_('\n') # PYCHOK OK 

312_NLATvar_ = Str_(_NL_ + '@var ') # PYCHOK OK 

313_NLHASH_ = Str_(_NL_ + '# ') # PYCHOK OK 

314# _NLNL_ = _DNL_ # PYCHOK OK 

315_NN_ = 'NN' # PYCHOK OK 

316_no_ = _Prefix('no') # PYCHOK OK 

317_north_ = 'north' # PYCHOK OK 

318_northing_ = 'northing' # PYCHOK OK 

319_NorthPole_ = 'NorthPole' # PYCHOK OK 

320_not_ = _Prefix('not') # PYCHOK OK 

321_NOTEQUAL_ = _BANG_ + _EQUAL_ # PYCHOK OK 

322_not_finite_ = 'not finite' # PYCHOK _not_(_finite_), _infinite_ 

323_not_scalar_ = 'not scalar' # PYCHOK _not_(_scalar_) 

324_NTF_ = 'NTF' # PYCHOK OK 

325_null_ = 'null' # PYCHOK OK 

326_number_ = 'number' # PYCHOK OK 

327_numpy_ = 'numpy' # PYCHOK OK 

328_Nv00_ = 'Nv00' # PYCHOK OK 

329_of_ = 'of' # PYCHOK OK 

330_on_ = 'on' # PYCHOK OK 

331_opposite_ = 'opposite' # PYCHOK OK 

332_or_ = 'or' # PYCHOK OK 

333_other_ = 'other' # PYCHOK OK 

334_outside_ = 'outside' # PYCHOK OK 

335_overlap_ = 'overlap' # PYCHOK OK 

336_parallel_ = 'parallel' # PYCHOK OK 

337_PERCENT_ = '%' # PYCHOK OK 

338_PERCENTDOTSTAR_ = '%.*' # PYCHOK _DOT_(_PERCENT_, _STAR_) 

339_phi_ = 'phi' # PYCHOK OK 

340_PLUS_ = Str_('+') # PYCHOK OK 

341_PLUSMINUS_ = _PLUS_ + _MINUS_ # PYCHOK OK 

342_point_ = 'point' # PYCHOK OK 

343_points_ = 'points' # PYCHOK OK 

344_pole_ = 'pole' # PYCHOK OK 

345_precision_ = 'precision' # PYCHOK OK 

346_prime_vertical_ = 'prime_vertical' # PYCHOK OK 

347_pygeodesy_ = 'pygeodesy' # PYCHOK OK 

348_pygeodesy_abspath_ = 'pygeodesy_abspath' # PYCHOK OK 

349_PyPy__ = _PyPy__('PyPy ') # PYCHOK + _SPACE_ 

350_Python_ = _Python_('Python') # PYCHOK singleton 

351_python_ = 'python' # PYCHOK OK 

352_QUOTE1_ = "'" # PYCHOK OK 

353_QUOTE2_ = '"' # PYCHOK OK 

354# _QUOTE3_ = "'''" # PYCHOK OK 

355# _QUOTE6_ = '"""' # PYCHOK OK 

356_R_ = 'R' # PYCHOK OK 

357_radians_ = 'radians' # PYCHOK OK 

358_radians2_ = 'radians2' # PYCHOK SQUARED 

359_radius_ = 'radius' # PYCHOK OK 

360_radius1_ = 'radius1' # PYCHOK OK 

361_radius2_ = 'radius2' # PYCHOK OK 

362_range_ = _Range('range') # PYCHOK OK 

363_RANGLE_ = '>' # PYCHOK OK 

364_RCURLY_ = '}' # PYCHOK RBRACE 

365_reciprocal_ = 'reciprocal' # PYCHOK OK 

366_reframe_ = 'reframe' # PYCHOK OK 

367_resolution_ = 'resolution' # PYCHOK OK 

368_rIn_ = 'rIn' # PYCHOK OK 

369_RPAREN_ = ')' # PYCHOK OK 

370_RSQUARE_ = ']' # PYCHOK RBRACK 

371_s_ = 's' # PYCHOK OK 

372_S_ = 'S' # PYCHOK OK 

373_s12_ = 's12' # PYCHOK OK 

374_S12_ = 'S12' # PYCHOK OK 

375_scalar_ = 'scalar' # PYCHOK OK 

376_scale_ = 'scale' # PYCHOK OK 

377_scale0_ = 'scale0' # PYCHOK OK 

378_scipy_ = 'scipy' # PYCHOK OK 

379_semi_circular_ = 'semi-circular' # PYCHOK OK 

380_sep_ = 'sep' # PYCHOK OK 

381_singular_ = 'singular' # PYCHOK OK 

382_SLASH_ = Str_('/') # PYCHOK OK 

383_small_ = 'small' # PYCHOK OK 

384_Sphere_ = 'Sphere' # PYCHOK OK 

385_spherical_ = 'spherical' # PYCHOK OK 

386_SouthPole_ = 'SouthPole' # PYCHOK OK 

387_SPACE_ = Str_(' ') # PYCHOK OK 

388_specified_ = 'specified' # PYCHOK OK 

389_STAR_ = Str_('*') # PYCHOK OK 

390_start_ = 'start' # PYCHOK OK 

391_std_ = 'std' # PYCHOK OK 

392_stdev_ = 'stdev' # PYCHOK OK 

393_supported_ = 'supported' # PYCHOK OK 

394_sx_ = 'sx' # PYCHOK OK 

395_sy_ = 'sy' # PYCHOK OK 

396_sz_ = 'sz' # PYCHOK OK 

397_tbd_ = 'tbd' # PYCHOK OK 

398_TILDE_ = '~' # PYCHOK OK 

399_to_ = 'to' # PYCHOK OK 

400_tolerance_ = _Prefix('tolerance') # PYCHOK OK 

401_too_ = _Prefix('too') # PYCHOK OK 

402_transform_ = 'transform' # PYCHOK OK 

403_tx_ = 'tx' # PYCHOK OK 

404_ty_ = 'ty' # PYCHOK OK 

405_tz_ = 'tz' # PYCHOK OK 

406_UNDER_ = Str_('_') # PYCHOK OK 

407_units_ = 'units' # PYCHOK OK 

408_UNUSED_ = 'UNUSED' # PYCHOK OK 

409_up_ = 'up' # PYCHOK OK 

410_UPS_ = 'UPS' # PYCHOK OK 

411_utf_8_ = 'utf-8' # PYCHOK OK 

412_UTM_ = 'UTM' # PYCHOK OK 

413_V_ = 'V' # PYCHOK OK 

414_valid_ = 'valid' # PYCHOK OK 

415_value_ = 'value' # PYCHOK OK 

416_version_ = 'version' # PYCHOK OK 

417_vs_ = 'vs' # PYCHOK OK 

418_W_ = 'W' # PYCHOK OK 

419_WGS72_ = 'WGS72' # PYCHOK OK 

420_WGS84_ = 'WGS84' # PYCHOK OK 

421_width_ = 'width' # PYCHOK OK 

422_with_ = 'with' # PYCHOK OK 

423_x_ = 'x' # PYCHOK OK 

424_X_ = 'X' # PYCHOK OK 

425_xyz_ = 'xyz' # PYCHOK OK 

426_y_ = 'y' # PYCHOK OK 

427_Y_ = 'Y' # PYCHOK OK 

428_z_ = 'z' # PYCHOK OK 

429_Z_ = 'Z' # PYCHOK OK 

430_zone_ = 'zone' # PYCHOK OK 

431 

432_EW_ = _E_ + _W_ # PYCHOK common cardinals 

433_NE_ = _N_ + _E_ # PYCHOK positive ones 

434_NS_ = _N_ + _S_ # PYCHOK OK 

435_NSEW_ = _NS_ + _EW_ # PYCHOK OK 

436_NW_ = _N_ + _W_ # PYCHOK OK 

437_SE_ = _S_ + _E_ # PYCHOK OK 

438_SW_ = _S_ + _W_ # PYCHOK negative ones 

439# _NESW_ = _NE_ + _SW_ # PYCHOK clockwise 

440 

441_DDOT_ = Str_(_DOT_ * 2) # PYCHOK OK 

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

443_DNL_ = Str_(_NL_ * 2) # PYCHOK OK 

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

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

446_DUNDER_ = Str_(_UNDER_ * 2) # PYCHOK OK 

447 

448_LR_PAIRS = {_LANGLE_: _RANGLE_, 

449 _LCURLY_: _RCURLY_, 

450 _LPAREN_: _RPAREN_, 

451 _LSQUARE_: _RSQUARE_} # PYCHOK OK 

452 

453 

454def _dunder_nameof(inst, *dflt): 

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

456 ''' 

457 try: 

458 return inst.__name__ 

459 except AttributeError: 

460 pass 

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

462 

463 

464def _enquote(strs, quote=_QUOTE2_): # in .basics, .solveBase 

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

466 ''' 

467 if len(strs.split()) > 1: 

468 strs = NN(quote, strs, quote) 

469 return strs 

470 

471 

472def _is(a, b): # PYCHOK no cover 

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

474 ''' 

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

476 

477 

478def _isPyPy(): 

479 '''(INTERNAL) Is this C{PyPy}? 

480 ''' 

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

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

483 

484 

485def _load_lib(name): 

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

487 ''' 

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

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

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

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

492 from ctypes import CDLL 

493 from ctypes.util import find_library 

494 

495 ns = find_library(name), name 

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

497 from ctypes import _dlopen, DEFAULT_MODE 

498 from os.path import join 

499 ns += (_DOT_(name, 'dylib'), 

500 _DOT_(name, 'framework'), join( 

501 _DOT_(name, 'framework'), name)) 

502 else: # non-macOS 

503 DEFAULT_MODE = 0 

504 

505 def _dlopen(*unused): 

506 return True 

507 

508 for n in ns: 

509 try: 

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

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

512 if lib._name: # has a qualified name 

513 return lib 

514 except (AttributeError, OSError): 

515 pass 

516 

517 return None # raise OSError 

518 

519 

520def machine(): 

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

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

523 

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

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

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

527 ''' 

528 return _platform2()[1] 

529 

530 

531def _platform2(sep=NN): 

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

533 ''' 

534 L = _pf2List 

535 if not L: 

536 import platform 

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

538 m = m.replace(_COMMA_, _UNDER_) 

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

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

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

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

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

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

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

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

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

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

549 

550 

551def _pythonarchine(sep=NN): # in test/bases.py versions 

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

553 ''' 

554 L = _Py3List 

555 if not L: 

556 v = _sys.version 

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

558 pypy = _PyPy__(v) 

559 if pypy: 

560 L.insert(0, pypy) 

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

562 

563 

564def _sysctl_uint(name): 

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

566 ''' 

567 libc = _load_lib('libc') 

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

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

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

571 u = c_uint(0) 

572 z = c_size_t(sizeof(u)) 

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

574 else: # could find or load 'libc' 

575 r = -2 

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

577 

578 

579def _under(name): # PYCHOK in .datums, .auxilats, .ups, .utm, .utmupsBase, ... 

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

581 ''' 

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

583 

584 

585def _usage(file_py, *args): # in .etm 

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

587 ''' 

588 import os 

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

590 .replace(os.sep, _DOT_).strip() 

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

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

593 m = _DOT_(m or _pygeodesy_, b) 

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

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

596 

597 

598def _version2(version, n=2): 

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

600 ''' 

601 def _ints(vs): 

602 for v in vs: 

603 if v: 

604 try: 

605 yield int(v.strip()) 

606 except (TypeError, ValueError): 

607 pass 

608 

609 t = tuple(_ints(version.split(_DOT_, 2))) 

610 if len(t) < n: 

611 t += (0,) * n 

612 return tuple(t[:n]) 

613 

614 

615__all__ = (_NN_, # not MISSING! 

616 Str_.__name__, # classes 

617 machine.__name__) # in .lazily 

618__version__ = '23.08.30' 

619 

620if __name__ == '__main__': 

621 

622 from pygeodesy import itemsorted, printf 

623 

624 t = b = 0 

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

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

627 not n.startswith(_DUNDER_): 

628 t += 1 

629 b += len(v) 

630 m = n[1:-1] 

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

632 printf('%4d: %s = %r', t, n, v) 

633 n = len(locals()) 

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

635 

636# **) MIT License 

637# 

638# Copyright (C) 2016-2023 -- mrJean1 at Gmail -- All Rights Reserved. 

639# 

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

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

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

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

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

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

646# 

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

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

649# 

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

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

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

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

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

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

656# OTHER DEALINGS IN THE SOFTWARE.