Mercurial > hgrepos > Python > libs > ConfigMix

annotate configmix/compat.py @ 409:2fc2e0bd0a56 v0.17b2

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+++++ v0.17b2
author Franz Glasner <f.glasner@feldmann-mg.com>
date Fri, 19 Nov 2021 13:37:23 +0100
parents ce2a8f5a2fb2
children b96f49c9c76b
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1 # -*- coding: utf-8 -*-
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2 # :-
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3 # :Copyright: (c) 2015-2021, Franz Glasner. All rights reserved.
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4 # :License: BSD-3-Clause. See LICENSE.txt for details.
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5 # :-
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6 """Some minimal compatibility shim between Python2 and Python3
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7
9981a68040b6 An INI-style configuration file parser
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8 """
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9
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10 from __future__ import division, absolute_import, print_function
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11
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12
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13 __all__ = ["PY2",
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14 "text_to_native_os_str",
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15 "native_os_str_to_text",
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16 "u",
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17 "u2fs",
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18 "uchr"]
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20
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21 import sys
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22 import os
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23 import locale
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26 PY2 = sys.version_info[0] <= 2
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29 if PY2:
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30
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31 _OS_ENCODING = locale.getpreferredencoding()
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32
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33 _FS_ENCODING = sys.getfilesystemencoding() or _OS_ENCODING
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34
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35
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36 def text_to_native_os_str(s, encoding=None):
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37 if isinstance(s, unicode): # noqa: F821
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38 return s.encode(encoding or _OS_ENCODING)
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39 else:
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40 return s
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43 def native_os_str_to_text(s, encoding=None):
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44 return s.decode(encoding or _OS_ENCODING)
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45
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47 def u(s, encoding="utf-8"):
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48 if isinstance(s, unicode): # noqa: F821
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49 return s
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50 else:
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51 return s.decode(encoding)
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52
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54 def u2fs(s, force=False):
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55 """Convert a text (Unicode) string to the filesystem encoding.
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56
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57 .. note:: The filesystem encoding on Python 3 is a Unicode text
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58 string. The function is a noop when called on Python 3.
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59
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60 .. note:: If `s` is already a byte string be permissive and
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61 return `s` unchanged.
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62
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63 """
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64 if isinstance(s, str):
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65 return s
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66 if not force and os.name in ("nt", "ce"):
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67 # WinNT and CE have native Unicode support: nothing to convert
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68 return s
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69 return s.encode(_FS_ENCODING)
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71 def uchr(n):
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72 return unichr(n) # noqa: F821
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74 else:
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75
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76 def text_to_native_os_str(s, encoding=None):
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77 return s
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80 def native_os_str_to_text(s, encoding=None):
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81 return s
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84 def u(s, encoding="utf-8"):
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85 if isinstance(s, str):
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86 return s
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87 else:
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88 return s.decode(encoding)
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90
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91 def u2fs(s, force=False):
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92 """Convert a text (Unicode) string to the filesystem encoding.
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93
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94 .. note:: The filesystem encoding on Python 3 is a Unicode text
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95 string. The function is a noop when called on Python 3.
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96
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97 .. note:: If `s` is already a byte string be permissive and
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98 return `s` unchanged.
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99
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100 """
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101 assert isinstance(s, str)
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102 return s
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103
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104 def uchr(n):
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105 return chr(n)