Mercurial Repositories > eric / file comparison
comparison: Utilities/compatibility_fixes.py
Utilities/compatibility_fixes.py
- branch
- Py2 comp.
- changeset 3065
- 070b35dde35e
- parent 2790
- 6686a3326df8
- child 3145
- a9de05d4a22f
equal
deleted
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| 3061:1c0ea3a87390 | 3065:070b35dde35e |
|---|---|
| 3 # Copyright (c) 2013 - 2013 Tobias Rzepka <tobias.rzepka@gmail.com> | 3 # Copyright (c) 2013 - 2013 Tobias Rzepka <tobias.rzepka@gmail.com> |
| 4 # | 4 # |
| 5 | 5 |
| 6 """ | 6 """ |
| 7 Module implementing the open behavior of Python3 for use with Eric5. | 7 Module implementing the open behavior of Python3 for use with Eric5. |
| 8 | |
| 8 The Eric5 used features are emulated only. The not emulated features | 9 The Eric5 used features are emulated only. The not emulated features |
| 9 should throw a NotImplementedError exception. | 10 should throw a NotImplementedError exception. |
| 10 """ | 11 """ |
| 11 | 12 |
| 12 from __future__ import unicode_literals # __IGNORE_WARNING__ | 13 from __future__ import unicode_literals # __IGNORE_WARNING__ |
| 13 | 14 |
| 14 import __builtin__ | 15 import __builtin__ |
| 15 import codecs | 16 import codecs |
| 16 | 17 |
| 17 | 18 |
| 18 def open(file, mode='r', buffering=-1, encoding=None, errors=None, newline=None, closefd=True): | 19 def open(file, mode='r', buffering=-1, encoding=None, |
| 20 errors=None, newline=None, closefd=True): | |
| 19 """ | 21 """ |
| 20 Replacement for the build in open function. | 22 Replacement for the build in open function. |
| 21 | 23 |
| 22 @param file filename or file descriptor (string) | 24 @param file filename or file descriptor (string) |
| 23 @keyparam mode access mode (string) | 25 @keyparam mode access mode (string) |
| 24 @keyparam buffering size of the read buffer (string) | 26 @keyparam buffering size of the read buffer (string) |
| 25 @keyparam encoding character encoding for reading/ writing (string) | 27 @keyparam encoding character encoding for reading/ writing (string) |
| 26 @keyparam errors behavior for the character encoding ('strict', 'explicit', ...) (string) | 28 @keyparam errors behavior for the character encoding ('strict', |
| 29 'explicit', ...) (string) | |
| 27 @keyparam newline controls how universal newlines works (string) | 30 @keyparam newline controls how universal newlines works (string) |
| 28 @keyparam closefd close underlying file descriptor if given as file parameter (boolean) | 31 @keyparam closefd close underlying file descriptor if given as file |
| 32 parameter (boolean) | |
| 33 @return Returns the new file object | |
| 29 """ | 34 """ |
| 30 return File(file, mode, buffering, encoding, errors, newline, closefd) | 35 return File(file, mode, buffering, encoding, errors, newline, closefd) |
| 31 | 36 |
| 32 | 37 |
| 33 class File(file): #__IGNORE_WARNING__ | 38 class File(file): #__IGNORE_WARNING__ |
| 34 """ | 39 """ |
| 35 Facade for the original file class. | 40 Facade for the original file class. |
| 36 """ | 41 """ |
| 37 def __init__(self, filein, mode='r', buffering=-1, encoding=None, errors=None, newline=None, closefd=True): | 42 def __init__(self, filein, mode='r', buffering=-1, |
| 43 encoding=None, errors=None, newline=None, closefd=True): | |
| 38 """ | 44 """ |
| 39 Constructor, checks for unimplemented parameters. | 45 Constructor, checks for unimplemented parameters. |
| 40 | 46 |
| 41 @param filein filename or file descriptor (string) | 47 @param filein filename or file descriptor (string) |
| 42 @keyparam mode access mode (string) | 48 @keyparam mode access mode (string) |
| 43 @keyparam buffering size of the read buffer (string) | 49 @keyparam buffering size of the read buffer (string) |
| 44 @keyparam encoding character encoding for reading/ writing (string) | 50 @keyparam encoding character encoding for reading/ writing (string) |
| 45 @keyparam errors behavior for the character encoding ('strict', 'explicit', ...) (string) | 51 @keyparam errors behavior for the character encoding ('strict', |
| 52 'explicit', ...) (string) | |
| 46 @keyparam newline controls how universal newlines works (string) | 53 @keyparam newline controls how universal newlines works (string) |
| 47 @keyparam closefd close underlying file descriptor if given as file parameter (boolean) | 54 @keyparam closefd close underlying file descriptor if given as file |
| 55 parameter (boolean) | |
| 56 @exception NotImplementedError for not implemented method parameters | |
| 48 """ | 57 """ |
| 49 self.__encoding = encoding | 58 self.__encoding = encoding |
| 50 self.__newline = newline | 59 self.__newline = newline |
| 51 self.__closefd = closefd | 60 self.__closefd = closefd |
| 52 if newline is not None: | 61 if newline is not None: |
| 55 else: | 64 else: |
| 56 mode = mode.replace('t', 'b') | 65 mode = mode.replace('t', 'b') |
| 57 if 'b' not in mode: | 66 if 'b' not in mode: |
| 58 mode = mode + 'b' | 67 mode = mode + 'b' |
| 59 | 68 |
| 60 if closefd == False: | 69 if closefd is False: |
| 61 raise NotImplementedError | 70 raise NotImplementedError |
| 62 | 71 |
| 63 if errors is None: | 72 if errors is None: |
| 64 self.__errors = 'strict' | 73 self.__errors = 'strict' |
| 65 else: | 74 else: |
| 101 @return decoded lines read | 110 @return decoded lines read |
| 102 """ | 111 """ |
| 103 if self.__encoding is None: | 112 if self.__encoding is None: |
| 104 return super(File, self).readlines(hint) | 113 return super(File, self).readlines(hint) |
| 105 else: | 114 else: |
| 106 return [codecs.decode(txt, self.__encoding) for txt in super(File, self).readlines(hint)] | 115 return [codecs.decode(txt, self.__encoding) |
| 116 for txt in super(File, self).readlines(hint)] | |
| 107 | 117 |
| 108 def write(self, txt): | 118 def write(self, txt): |
| 109 """ | 119 """ |
| 110 Write given data to file. Encode if needed. | 120 Write given data to file. Encode if needed. |
| 111 | 121 |
