Coverage for pygeodesy/interns.py: 97%
445 statements
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« prev ^ index » next coverage.py v7.2.2, created at 2023-11-12 13:23 -0500
1# -*- coding: utf-8 -*-
3u'''Single C{str}ing constants, C{intern}'ed across C{pygeodesy}
4modules and function L{pygeodesy.machine}.
5'''
6import sys as _sys
8_COMMASPACE_ = ', ' # overriden below
9_pf2List = [] # cached _platform2 list
10_Py3List = [] # cached _pythonarchine list
12_sub_packages = 'auxilats', 'deprecated', 'geodesicx' # PYCHOK in .lazily,
13# ... make._dist, MANIFEST, setup.setup, test.bases, test.testModules
16class _Dash(str):
17 '''(INTERNAL) Extended C{str} for prefix_DASH_.
18 '''
19 def __call__(self, *args):
20 '''Join C{self} plus all B{C{args}} like C{'-'.join((self,) + B{args})}.
21 '''
22 return _DASH_(self, *args) # re-callable
25class _Int(int):
26 '''(INTERNAL) Unique C{int}.
27 '''
28 pass
31class Str_(str):
32 '''Extended, I{callable} C{str} class, not nameable.
34 @see: Nameable and callable class L{pygeodesy.Str}.
35 '''
36 def join_(self, *args):
37 '''Join all positional B{C{args}} like C{self.join(B{args})}.
39 @return: All B{C{args}} joined by this instance (L{Str_}).
41 @note: An other L{Str_} instance is returned to make the
42 result re-callable.
43 '''
44 return Str_(str.join(self, map(str, args))) # re-callable
46 __call__ = join_
48NN = Str_('') # PYCHOK Nomen Nescio <https://Wiktionary.org/wiki/N.N.>
51class _Prefix(Str_):
52 '''(INTERNAL) Extended C{str} for prefix.
53 '''
54 def __call__(self, *args):
55 '''Join C{self} plus all B{C{args}} like C{" ".join((self,) + B{args})}.
56 '''
57 return _SPACE_.join_(self, *args) # re-callable
60class _PyPy__(str): # overwritten by singleton below
61 '''(INTERNAL) Extended C{str} for C{"PyPy"} and version.
62 '''
63 def __call__(self, version=NN):
64 '''Return C{"PyPy <version>"} or C{NN}.
65 '''
66 v = version or _sys.version
67 if _PyPy__ in v:
68 v = v.split(_PyPy__)[1].split(None, 1)[0] # == _DOT_.join(_sys.pypy_version_info[:3])
69 return NN(_PyPy__, v)
70 else:
71 return NN
74class _Python_(str): # overwritten by singleton below
75 '''(INTERNAL) Extended C{str} for C{"Python"} and version.
76 '''
77 def __call__(self, version=NN):
78 '''Return C{"Python <version>"}.
79 '''
80 v = version or _sys.version
81 return _SPACE_(self, v.split(None, 1)[0])
84class _Range(str):
85 '''(INTERNAL) Extended C{str} for C{range} strings.
86 '''
87 def __call__(self, lo, hi, lopen=False, ropen=False,
88 prec=0, sep=_COMMASPACE_):
89 '''Return the range as C{"(lo, hi)"}, C{"(lo, hi]"},
90 C{"[lo, hi)"} or C{"[lo, hi]"}.
91 '''
92 from pygeodesy.streprs import Fmt
93 r = NN(Fmt.f(lo, prec=prec), sep,
94 Fmt.f(hi, prec=prec))
95 f = (Fmt.PAREN if ropen else Fmt.LOPEN) if lopen else \
96 (Fmt.ROPEN if ropen else Fmt.SQUARE)
97 return f(r)
100class _Slicer(str):
101 '''(INTERNAL) String slicer C{.fromX} or C{.tillY}.
102 '''
103 def __getattr__(self, name): # .fromX, .tillY
104 n = len(name) - 4
105 if n > 0:
106 # assert len('till') == len(_from_) == 4
107 if name.startswith('till'):
108 i = self.find(name[4:])
109 return self if i < 0 else _Slicer(self[:i + n])
110 elif name.startswith(_from_):
111 i = self.find(name[4:])
112 return self if i < 0 else _Slicer(self[i:])
113 return str.__getattr__(self, name) # PYCHOK no cover
116class MISSING(object):
117 '''(INTERNAL) Singleton C{str}.
118 '''
119 def toRepr(self, **unused):
120 return self.__class__.__name__
122 __repr__ = __str__ = toStr = toRepr
124MISSING = MISSING() # PYCHOK singleton
125MISSING.__name__ = str(MISSING)
127# __DUNDER__-style names would get mangled in classes
128_0_ = '0' # PYCHOK 'zero'
129_0to9_ = '0123456789' # PYCHOK OK
130_1_ = '1' # PYCHOK OK
131_2_ = '2' # PYCHOK OK
132_3_ = '3' # PYCHOK OK
133_4_ = '4' # PYCHOK OK
134_a_ = 'a' # PYCHOK OK
135_A_ = 'A' # PYCHOK OK
136_a12_ = 'a12' # PYCHOK OK
137_area_ = 'area' # PYCHOK OK
138_Airy1830_ = 'Airy1830' # PYCHOK OK
139_AiryModified_ = 'AiryModified' # PYCHOK OK
140_ambiguous_ = 'ambiguous' # PYCHOK OK
141_AMPERSAND_ = Str_('&') # PYCHOK OK
142_an_ = 'an' # PYCHOK OK
143_and_ = 'and' # PYCHOK OK
144# _AND_ = _AMPERSAND_ # PYCHOK OK
145_angle_ = 'angle' # PYCHOK OK
146_antipodal_ = 'antipodal' # PYCHOK OK
147_areaOf_ = 'areaOf' # PYCHOK OK
148_arg_ = 'arg' # PYCHOK OK
149_at_ = 'at' # PYCHOK OK
150_AT_ = Str_('@') # PYCHOK OK
151_AtoZnoIO_ = _Slicer('ABCDEFGHJKLMNPQRSTUVWXYZ') # PYCHOK in .gars, .mgrs and .wgrs
152_attribute_ = 'attribute' # PYCHOK OK
153_azi1_ = 'azi1' # PYCHOK OK
154_azi12_ = 'azi12' # PYCHOK OK
155_azi2_ = 'azi2' # PYCHOK OK
156_azimuth_ = 'azimuth' # PYCHOK OK
157_b_ = 'b' # PYCHOK OK
158_B_ = 'B' # PYCHOK OK
159_BACKSLASH_ = Str_('\\') # PYCHOK OK
160_band_ = 'band' # PYCHOK OK
161_BANG_ = Str_('!') # PYCHOK OK
162_BAR_ = Str_('|') # PYCHOK OK
163_bearing_ = 'bearing' # PYCHOK OK
164_Bessel1841_ = 'Bessel1841' # PYCHOK OK
165_beta_ = 'beta' # PYCHOK OK
166_by_ = 'by' # PYCHOK OK
167_c_ = 'c' # PYCHOK OK
168_C_ = 'C' # PYCHOK OK
169_cartesian_ = 'cartesian' # PYCHOK OK
170_center_ = 'center' # PYCHOK OK
171# _CIRCUMFLEX_ = Str_('^') # PYCHOK OK
172_Clarke1866_ = 'Clarke1866' # PYCHOK OK
173_Clarke1880IGN_ = 'Clarke1880IGN' # PYCHOK OK
174_clip_ = 'clip' # PYCHOK OK
175_clipid_ = 'clipid' # PYCHOK OK
176_coincident_ = 'coincident' # PYCHOK OK
177_colinear_ = 'colinear' # PYCHOK OK
178_COLON_ = Str_(':') # PYCHOK OK
179_COLONSPACE_ = Str_(': ') # PYCHOK OK
180_COMMA_ = Str_(',') # PYCHOK OK
181_COMMASPACE_ = Str_(_COMMASPACE_) # PYCHOK OK
182_composite_ = 'composite' # PYCHOK OK
183_concentric_ = 'concentric' # PYCHOK OK
184_convergence_ = _Prefix('convergence') # PYCHOK OK
185_conversion_ = 'conversion' # PYCHOK OK
186_convex_ = 'convex' # PYCHOK OK
187_cubic_ = 'cubic' # PYCHOK OK
188_d_ = 'd' # PYCHOK OK
189_D_ = 'D' # PYCHOK OK
190_DASH_ = Str_('-') # PYCHOK == _MINUS_
191_datum_ = 'datum' # PYCHOK OK
192_decode3_ = 'decode3' # PYCHOK OK
193_deg_ = 'deg' # PYCHOK OK
194_degrees_ = 'degrees' # PYCHOK OK
195_degrees2_ = 'degrees2' # PYCHOK SQUARED
196_delta_ = 'delta' # PYCHOK OK
197_DEPRECATED_ = 'DEPRECATED' # PYCHOK OK
198_DEQUALSPACED_ = Str_(' == ') # PYCHOK OK
199_distance_ = 'distance' # PYCHOK OK
200_distant_ = _Prefix('distant') # PYCHOK OK
201_doesn_t_exist_ = "doesn't exist" # PYCHOK OK
202_DOT_ = Str_('.') # PYCHOK OK
203_down_ = 'down' # PYCHOK OK
204_e_ = 'e' # PYCHOK OK
205_E_ = 'E' # PYCHOK OK
206_earth_ = 'earth' # PYCHOK OK
207_east_ = 'east' # PYCHOK OK
208_easting_ = 'easting' # PYCHOK OK
209_ecef_ = 'ecef' # PYCHOK OK
210_edge_ = 'edge' # PYCHOK OK
211_elevation_ = 'elevation' # PYCHOK OK
212_ELLIPSIS_ = Str_('...') # PYCHOK OK
213_ELLIPSIS4_ = Str_('....') # PYCHOK OK
214# _ELLIPSISPACED_ = Str_(' ... ') # PYCHOK <https://www.ThePunctuationGuide.com/ellipses.html>
215_ellipsoid_ = 'ellipsoid' # PYCHOK OK
216_ellipsoidal_ = 'ellipsoidal' # PYCHOK OK
217_enabled_ = 'enabled' # PYCHOK OK
218_encode_ = 'encode' # PYCHOK OK
219_end_ = 'end' # PYCHOK OK
220_epoch_ = 'epoch' # PYCHOK OK
221_eps_ = 'eps' # PYCHOK OK
222_EQUAL_ = Str_('=') # PYCHOK OK
223_EQUALSPACED_ = Str_(' = ') # PYCHOK OK
224_Error_ = 'Error' # PYCHOK OK
225_exceed_PI_radians_ = 'exceed PI radians' # PYCHOK OK
226_exceeds_ = _Prefix('exceeds') # PYCHOK OK
227# _EXCLAMATION_ = _BANG_ # PYCHOK OK
228_exists_ = 'exists' # PYCHOK OK
229_f_ = 'f' # PYCHOK OK
230_F_ = 'F' # PYCHOK OK
231_feet_ = 'feet' # PYCHOK OK
232_few_ = 'few' # PYCHOK OK
233_fi_ = 'fi' # PYCHOK OK
234_finite_ = 'finite' # PYCHOK OK
235_from_ = 'from' # PYCHOK OK
236_g_ = 'g' # PYCHOK OK
237_gamma_ = 'gamma' # PYCHOK OK
238_GRS80_ = 'GRS80' # PYCHOK OK
239_h_ = 'h' # PYCHOK OK
240_H_ = 'H' # PYCHOK OK
241_HASH_ = '#' # PYCHOK OK
242_height_ = 'height' # PYCHOK OK
243_hemipole_ = 'hemipole' # PYCHOK OK
244_i_ = 'i' # PYCHOK OK
245_iadd_op_ = '+=' # PYCHOK OK
246_immutable_ = 'immutable' # PYCHOK OK
247_in_ = 'in' # PYCHOK OK
248_incompatible_ = 'incompatible' # PYCHOK OK
249_INF_ = 'INF' # PYCHOK OK
250_infinite_ = 'infinite' # PYCHOK _not_finite_
251_initial_ = 'initial' # PYCHOK OK
252_inside_ = 'inside' # PYCHOK OK
253_insufficient_ = 'insufficient' # PYCHOK OK
254_intersection_ = 'intersection' # PYCHOK OK
255_Intl1924_ = 'Intl1924' # PYCHOK OK
256_invalid_ = 'invalid' # PYCHOK OK
257_invokation_ = 'invokation' # PYCHOK OK
258_isclockwise_ = 'isclockwise' # PYCHOK OK
259_ispolar_ = 'ispolar' # PYCHOK OK
260_j_ = 'j' # PYCHOK OK
261_k0_ = 'k0' # PYCHOK OK
262_kind_ = 'kind' # PYCHOK OK
263_knots_ = 'knots' # PYCHOK OK
264_Krassovski1940_ = 'Krassovski1940' # PYCHOK OK
265_Krassowsky1940_ = 'Krassowsky1940' # PYCHOK OK
266_LANGLE_ = '<' # PYCHOK OK
267_lam_ = 'lam' # PYCHOK OK
268_lat_ = 'lat' # PYCHOK OK
269_lat0_ = 'lat0' # PYCHOK OK
270_lat1_ = 'lat1' # PYCHOK OK
271_lat2_ = 'lat2' # PYCHOK OK
272_latlon_ = 'latlon' # PYCHOK OK
273_LatLon_ = 'LatLon' # PYCHOK OK
274_LCURLY_ = '{' # PYCHOK LBRACE
275_len_ = 'len' # PYCHOK OK
276_limit_ = 'limit' # PYCHOK OK
277_line_ = 'line' # PYCHOK OK
278_linear_ = 'linear' # PYCHOK OK
279_LPAREN_ = '(' # PYCHOK OK
280_lon_ = 'lon' # PYCHOK OK
281_lon0_ = 'lon0' # PYCHOK OK
282_lon1_ = 'lon1' # PYCHOK OK
283_lon2_ = 'lon2' # PYCHOK OK
284_low_ = 'low' # PYCHOK OK
285_LSQUARE_ = '[' # PYCHOK LBRACK
286_ltp_ = 'ltp' # PYCHOK OK
287_m_ = 'm' # PYCHOK OK
288_M_ = 'M' # PYCHOK OK
289_m12_ = 'm12' # PYCHOK OK
290_M12_ = 'M12' # PYCHOK OK
291_M21_ = 'M21' # PYCHOK OK
292_MANT_DIG_ = 'MANT_DIG' # PYCHOK OK
293_MAX_ = 'MAX' # PYCHOK OK
294_mean_ = 'mean' # PYCHOK OK
295_meanOf_ = 'meanOf' # PYCHOK OK
296_meridional_ = 'meridional' # PYCHOK OK
297_meter_ = 'meter' # PYCHOK OK
298_meter2_ = 'meter2' # PYCHOK SQUARED
299_MGRS_ = 'MGRS' # PYCHOK OK
300_MIN_ = 'MIN' # PYCHOK OK
301_MINUS_ = _DASH_ # PYCHOK OK
302_module_ = 'module' # PYCHOK OK
303_n_ = 'n' # PYCHOK OK
304_N_ = 'N' # PYCHOK OK
305_n_a_ = 'n/a' # PYCHOK OK
306_N_A_ = 'N/A' # PYCHOK OK
307_NAD27_ = 'NAD27' # PYCHOK OK
308_NAD83_ = 'NAD83' # PYCHOK OK
309_name_ = 'name' # PYCHOK OK
310_NAN_ = 'NAN' # PYCHOK OK
311_near_ = _Dash('near') # PYCHOK OK
312_nearestOn2_ = 'nearestOn2' # PYCHOK OK
313_negative_ = 'negative' # PYCHOK OK
314_NL_ = Str_('\n') # PYCHOK OK
315_NLATvar_ = Str_(_NL_ + '@var ') # PYCHOK OK
316_NLHASH_ = Str_(_NL_ + '# ') # PYCHOK OK
317# _NLNL_ = _DNL_ # PYCHOK OK
318_NN_ = 'NN' # PYCHOK OK
319_no_ = _Prefix('no') # PYCHOK OK
320_north_ = 'north' # PYCHOK OK
321_northing_ = 'northing' # PYCHOK OK
322_NorthPole_ = 'NorthPole' # PYCHOK OK
323_not_ = _Prefix('not') # PYCHOK OK
324_NOTEQUAL_ = _BANG_ + _EQUAL_ # PYCHOK OK
325_not_finite_ = 'not finite' # PYCHOK _not_(_finite_), _infinite_
326_not_scalar_ = 'not scalar' # PYCHOK _not_(_scalar_)
327_NTF_ = 'NTF' # PYCHOK OK
328_null_ = 'null' # PYCHOK OK
329_number_ = 'number' # PYCHOK OK
330_numpy_ = 'numpy' # PYCHOK OK
331_Nv00_ = 'Nv00' # PYCHOK OK
332_of_ = 'of' # PYCHOK OK
333_on_ = 'on' # PYCHOK OK
334_opposite_ = 'opposite' # PYCHOK OK
335_or_ = 'or' # PYCHOK OK
336_other_ = 'other' # PYCHOK OK
337_outside_ = 'outside' # PYCHOK OK
338_overlap_ = 'overlap' # PYCHOK OK
339_parallel_ = 'parallel' # PYCHOK OK
340_PERCENT_ = '%' # PYCHOK OK
341_PERCENTDOTSTAR_ = '%.*' # PYCHOK _DOT_(_PERCENT_, _STAR_)
342_phi_ = 'phi' # PYCHOK OK
343_PLUS_ = Str_('+') # PYCHOK OK
344_PLUSMINUS_ = _PLUS_ + _MINUS_ # PYCHOK OK
345_point_ = 'point' # PYCHOK OK
346_points_ = 'points' # PYCHOK OK
347_pole_ = 'pole' # PYCHOK OK
348_precision_ = 'precision' # PYCHOK OK
349_prime_vertical_ = 'prime_vertical' # PYCHOK OK
350_pygeodesy_ = 'pygeodesy' # PYCHOK OK
351_pygeodesy_abspath_ = 'pygeodesy_abspath' # PYCHOK OK
352_PyPy__ = _PyPy__('PyPy ') # PYCHOK + _SPACE_
353_Python_ = _Python_('Python') # PYCHOK singleton
354_python_ = 'python' # PYCHOK OK
355_QUOTE1_ = "'" # PYCHOK OK
356_QUOTE2_ = '"' # PYCHOK OK
357# _QUOTE3_ = "'''" # PYCHOK OK
358# _QUOTE6_ = '"""' # PYCHOK OK
359_R_ = 'R' # PYCHOK OK
360_radians_ = 'radians' # PYCHOK OK
361_radians2_ = 'radians2' # PYCHOK SQUARED
362_radius_ = 'radius' # PYCHOK OK
363_radius1_ = 'radius1' # PYCHOK OK
364_radius2_ = 'radius2' # PYCHOK OK
365_range_ = _Range('range') # PYCHOK OK
366_RANGLE_ = '>' # PYCHOK OK
367_RCURLY_ = '}' # PYCHOK RBRACE
368_reciprocal_ = 'reciprocal' # PYCHOK OK
369_reframe_ = 'reframe' # PYCHOK OK
370_resolution_ = 'resolution' # PYCHOK OK
371_rIn_ = 'rIn' # PYCHOK OK
372_RPAREN_ = ')' # PYCHOK OK
373_RSQUARE_ = ']' # PYCHOK RBRACK
374_s_ = 's' # PYCHOK OK
375_S_ = 'S' # PYCHOK OK
376_s12_ = 's12' # PYCHOK OK
377_S12_ = 'S12' # PYCHOK OK
378_scalar_ = 'scalar' # PYCHOK OK
379_scale_ = 'scale' # PYCHOK OK
380_scale0_ = 'scale0' # PYCHOK OK
381_scipy_ = 'scipy' # PYCHOK OK
382_semi_circular_ = 'semi-circular' # PYCHOK OK
383_sep_ = 'sep' # PYCHOK OK
384_singular_ = 'singular' # PYCHOK OK
385_SLASH_ = Str_('/') # PYCHOK OK
386_small_ = 'small' # PYCHOK OK
387_Sphere_ = 'Sphere' # PYCHOK OK
388_spherical_ = 'spherical' # PYCHOK OK
389_SouthPole_ = 'SouthPole' # PYCHOK OK
390_SPACE_ = Str_(' ') # PYCHOK OK
391_specified_ = 'specified' # PYCHOK OK
392_STAR_ = Str_('*') # PYCHOK OK
393_start_ = 'start' # PYCHOK OK
394_std_ = 'std' # PYCHOK OK
395_stdev_ = 'stdev' # PYCHOK OK
396_supported_ = 'supported' # PYCHOK OK
397_sx_ = 'sx' # PYCHOK OK
398_sy_ = 'sy' # PYCHOK OK
399_sz_ = 'sz' # PYCHOK OK
400_tbd_ = 'tbd' # PYCHOK OK
401_TILDE_ = '~' # PYCHOK OK
402_to_ = 'to' # PYCHOK OK
403_tolerance_ = _Prefix('tolerance') # PYCHOK OK
404_too_ = _Prefix('too') # PYCHOK OK
405_transform_ = 'transform' # PYCHOK OK
406_tx_ = 'tx' # PYCHOK OK
407_ty_ = 'ty' # PYCHOK OK
408_tz_ = 'tz' # PYCHOK OK
409_UNDER_ = Str_('_') # PYCHOK OK
410_units_ = 'units' # PYCHOK OK
411_UNUSED_ = 'UNUSED' # PYCHOK OK
412_up_ = 'up' # PYCHOK OK
413_UPS_ = 'UPS' # PYCHOK OK
414_utf_8_ = 'utf-8' # PYCHOK OK
415_UTM_ = 'UTM' # PYCHOK OK
416_V_ = 'V' # PYCHOK OK
417_valid_ = 'valid' # PYCHOK OK
418_value_ = 'value' # PYCHOK OK
419_version_ = 'version' # PYCHOK OK
420_vs_ = 'vs' # PYCHOK OK
421_W_ = 'W' # PYCHOK OK
422_WGS72_ = 'WGS72' # PYCHOK OK
423_WGS84_ = 'WGS84' # PYCHOK OK
424_width_ = 'width' # PYCHOK OK
425_with_ = 'with' # PYCHOK OK
426_x_ = 'x' # PYCHOK OK
427_X_ = 'X' # PYCHOK OK
428_xyz_ = 'xyz' # PYCHOK OK
429_y_ = 'y' # PYCHOK OK
430_Y_ = 'Y' # PYCHOK OK
431_z_ = 'z' # PYCHOK OK
432_Z_ = 'Z' # PYCHOK OK
433_zone_ = 'zone' # PYCHOK OK
435_EW_ = _E_ + _W_ # PYCHOK common cardinals
436_NE_ = _N_ + _E_ # PYCHOK positive ones
437_NS_ = _N_ + _S_ # PYCHOK OK
438_NSEW_ = _NS_ + _EW_ # PYCHOK OK
439_NW_ = _N_ + _W_ # PYCHOK OK
440_SE_ = _S_ + _E_ # PYCHOK OK
441_SW_ = _S_ + _W_ # PYCHOK negative ones
442# _NESW_ = _NE_ + _SW_ # PYCHOK clockwise
444_DDOT_ = Str_(_DOT_ * 2) # PYCHOK OK
445# _DEQUAL_ = Str_(_EQUAL_ * 2) # PYCHOK OK
446_DNL_ = Str_(_NL_ * 2) # PYCHOK OK
447# _DSLASH_ = Str_(_SLASH_ * 2) # PYCHOK OK
448# _DSTAR_ = Str_(_STAR_ * 2) # PYCHOK OK
449_DUNDER_ = Str_(_UNDER_ * 2) # PYCHOK OK
451_LR_PAIRS = {_LANGLE_: _RANGLE_,
452 _LCURLY_: _RCURLY_,
453 _LPAREN_: _RPAREN_,
454 _LSQUARE_: _RSQUARE_} # PYCHOK OK
457def _dunder_nameof(inst, *dflt):
458 '''(INTERNAL) Get the double_underscore __name__ attr.
459 '''
460 try:
461 return inst.__name__
462 except AttributeError:
463 pass
464 return dflt[0] if dflt else inst.__class__.__name__
467def _enquote(strs, quote=_QUOTE2_): # in .basics, .solveBase
468 '''(INTERNAL) Enquote a string containing whitespace.
469 '''
470 if len(strs.split()) > 1:
471 strs = NN(quote, strs, quote)
472 return strs
475def _is(a, b): # PYCHOK no cover
476 '''(INTERNAL) C{a is b}? in C{PyPy}
477 '''
478 return (a == b) if _isPyPy() else (a is b)
481def _isPyPy():
482 '''(INTERNAL) Is this C{PyPy}?
483 '''
484 # platform.python_implementation() == 'PyPy'
485 return _pythonarchine()[0].startswith(_PyPy__)
488def _load_lib(name):
489 '''(INTERNAL) Load a C{dylib}, B{C{name}} must startwith('lib').
490 '''
491 # macOS 11+ (aka 10.16) no longer provides direct loading of
492 # system libraries. As a result, C{ctypes.util.find_library}
493 # will not find any library, unless previously installed by a
494 # low-level dlopen(name) call (with the library base C{name}).
495 from ctypes import CDLL
496 from ctypes.util import find_library
498 ns = find_library(name), name
499 if _sys.platform[:6] == 'darwin': # and os.name == 'posix'
500 from ctypes import _dlopen, DEFAULT_MODE
501 from os.path import join
502 ns += (_DOT_(name, 'dylib'),
503 _DOT_(name, 'framework'), join(
504 _DOT_(name, 'framework'), name))
505 else: # non-macOS
506 DEFAULT_MODE = 0
508 def _dlopen(*unused):
509 return True
511 for n in ns:
512 try:
513 if n and _dlopen(n, DEFAULT_MODE): # pre-load handle
514 lib = CDLL(n) # == ctypes.cdll.LoadLibrary(n)
515 if lib._name: # has a qualified name
516 return lib
517 except (AttributeError, OSError):
518 pass
520 return None # raise OSError
523def machine():
524 '''Return standard C{platform.machine}, but distinguishing Intel I{native}
525 from Intel I{emulation} on Apple Silicon (on macOS only).
527 @return: Machine C{'arm64'} for Apple Silicon I{native}, C{'x86_64'}
528 for Intel I{native}, C{"arm64_x86_64"} for Intel I{emulation},
529 etc. (C{str} with C{comma}s replaced by C{underscore}s).
530 '''
531 return _platform2()[1]
534def _platform2(sep=NN):
535 '''(INTERNAL) Get platform architecture and machine as C{2-list} or C{str}.
536 '''
537 L = _pf2List
538 if not L:
539 import platform
540 m = platform.machine() # ARM64, arm64, x86_64, iPhone13,2, etc.
541 m = m.replace(_COMMA_, _UNDER_)
542 if m.lower() == 'x86_64': # on Intel or Rosetta2 ...
543 v = platform.mac_ver() # ... and only on macOS ...
544 if v and _version2(v[0]) > (10, 15): # ... 11+ aka 10.16
545 # <https://Developer.Apple.com/forums/thread/659846>
546 if _sysctl_uint('sysctl.proc_translated') == 1: # and \
547# _sysctl_uint('hw.optional.arm64') == 1: # PYCHOK indent
548 m = _UNDER_('arm64', m) # Apple Si emulating Intel x86-64
549 L[:] = [platform.architecture()[0], # bits
550 m] # arm64, arm64_x86_64, x86_64, etc.
551 return sep.join(L) if sep else L # 2-list()
554def _pythonarchine(sep=NN): # in test/bases.py versions
555 '''(INTERNAL) Get PyPy and Python versions and C{_platform2} as C{3- or 4-list} or C{str}.
556 '''
557 L = _Py3List
558 if not L:
559 v = _sys.version
560 L[:] = [_Python_(v)] + _platform2()
561 pypy = _PyPy__(v)
562 if pypy:
563 L.insert(0, pypy)
564 return sep.join(L) if sep else L # 3- or 4-list
567def _sysctl_uint(name):
568 '''(INTERNAL) Get an unsigned int sysctl item by name, use on macOS ONLY!
569 '''
570 libc = _load_lib('libc')
571 if libc: # <https://StackOverflow.com/questions/759892/python-ctypes-and-sysctl>
572 from ctypes import byref, c_char_p, c_size_t, c_uint, sizeof # get_errno
573 n = name if str is bytes else bytes(name, _utf_8_) # PYCHOK isPython2 = str is bytes
574 u = c_uint(0)
575 z = c_size_t(sizeof(u))
576 r = libc.sysctlbyname(c_char_p(n), byref(u), byref(z), None, c_size_t(0))
577 else: # could find or load 'libc'
578 r = -2
579 return int(r if r else u.value) # -1 ENOENT error, -2 no libc
582def _under(name): # PYCHOK in .datums, .auxilats, .ups, .utm, .utmupsBase, ...
583 '''(INTERNAL) Prefix C{name} with I{underscore}.
584 '''
585 return name if name.startswith(_UNDER_) else NN(_UNDER_, name)
588def _usage(file_py, *args): # in .etm
589 '''(INTERNAL) Build "usage: python -m ..." cmd line for module B{C{file_py}}.
590 '''
591 import os
592 m = os.path.dirname(file_py).replace(os.getcwd(), _ELLIPSIS_) \
593 .replace(os.sep, _DOT_).strip()
594 b, x = os.path.splitext(os.path.basename(file_py))
595 if x == '.py' and b != '__main__':
596 m = _DOT_(m or _pygeodesy_, b)
597 p = NN(_python_, _sys.version_info[0])
598 return NN('usage', _SPACE_(_COLON_, p, '-m', _enquote(m), *args))
601def _version2(version, n=2):
602 '''(INTERNAL) Split C{B{version} str} into a C{1-, 2- or 3-tuple} of C{int}s.
603 '''
604 def _ints(vs):
605 for v in vs:
606 if v:
607 try:
608 yield int(v.strip())
609 except (TypeError, ValueError):
610 pass
612 t = tuple(_ints(version.split(_DOT_, 2)))
613 if len(t) < n:
614 t += (0,) * n
615 return tuple(t[:n])
618__all__ = (_NN_, # not MISSING!
619 Str_.__name__, # classes
620 machine.__name__) # in .lazily
621__version__ = '23.09.13'
623if __name__ == '__main__':
625 from pygeodesy import itemsorted, printf
627 t = b = 0
628 for n, v in itemsorted(locals(), asorted=False, reverse=True):
629 if n.endswith(_UNDER_) and n.startswith(_UNDER_) and \
630 not n.startswith(_DUNDER_):
631 t += 1
632 b += len(v)
633 m = n[1:-1]
634 if m != v and m.replace(_UNDER_, _SPACE_) != v:
635 printf('%4d: %s = %r', t, n, v)
636 n = len(locals())
637 printf('%4d (%d) names, %s chars total, %.2f chars avg', t, n, b, float(b) / t, nl=1)
639# **) MIT License
640#
641# Copyright (C) 2016-2023 -- mrJean1 at Gmail -- All Rights Reserved.
642#
643# Permission is hereby granted, free of charge, to any person obtaining a
644# copy of this software and associated documentation files (the "Software"),
645# to deal in the Software without restriction, including without limitation
646# the rights to use, copy, modify, merge, publish, distribute, sublicense,
647# and/or sell copies of the Software, and to permit persons to whom the
648# Software is furnished to do so, subject to the following conditions:
649#
650# The above copyright notice and this permission notice shall be included
651# in all copies or substantial portions of the Software.
652#
653# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
654# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
655# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
656# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
657# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
658# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
659# OTHER DEALINGS IN THE SOFTWARE.