textcompat 0.1.0a1

Python library handling conversions from `typing.Text` (Python 2 `unicode`, Python 3 `str`) to UTF-8, URI, stdin/stdout, and filesystem `str`s, and vice versa.

textcompat

A Python library handling conversions from typing.Text (Python 2 unicode, Python 3 str) to UTF-8, URI, stdin/stdout, and filesystem strs, and vice versa.

Specifically, it handles the following conversions:

Function	Python 2	Python 3
text_to_utf_8_str	unicode -> UTF-8 str	No-op
utf_8_str_to_text	UTF-8 str -> unicode	No-op
text_to_uri_str	unicode -> URI str	str -> URI str
uri_str_to_text	URI str -> decoded unicode	URI str -> decoded str
text_to_stdout_str	unicode -> str in stdout encoding	No-op
stdin_str_to_text	str in stdin encoding -> unicode	No-op
text_to_filesystem_str	unicode -> str in filesystem encoding	No-op
filesystem_str_to_text	str in filesystem encoding -> unicode	No-op

To determine the filesystem encoding, the library tries to use sys.getfilesystemencoding(). If it returns None, the library detects the operating system and uses reasonable defaults:

• NT: 'mbcs'
• POSIX: 'utf-8'

Example

On an NT machine with:

• sys.getdefaultencoding() == 'ascii'
• sys.getfilesystemencoding() == 'mbcs'
• locale.getpreferredencoding() == 'cp936'
• sys.stdin.encoding == 'cp936'
• sys.stdout.encoding == 'cp936'

# coding=utf-8
from __future__ import print_function
from textcompat import *

text = u'测试A1你我他中文123!@#￥%（）【】～*'

print(repr(text_to_utf_8_str(text)))
# Python 2:
# '\xe6\xb5\x8b\xe8\xaf\x95A1\xe4\xbd\xa0\xe6\x88\x91\xe4\xbb\x96\xe4\xb8\xad\xe6\x96\x87123!@#\xef\xbf\xa5%\xef\xbc\x88\xef\xbc\x89\xe3\x80\x90\xe3\x80\x91\xef\xbd\x9e*'
# Python 3:
# '测试A1你我他中文123!@#￥%（）【】～*'

assert type(utf_8_str_to_text(text_to_utf_8_str(text))) is type(text) and utf_8_str_to_text(
    text_to_utf_8_str(text)) == text

print(repr(text_to_uri_str(text)))
# Python 2 and 3:
# '%E6%B5%8B%E8%AF%95A1%E4%BD%A0%E6%88%91%E4%BB%96%E4%B8%AD%E6%96%87123%21%40%23%EF%BF%A5%25%EF%BC%88%EF%BC%89%E3%80%90%E3%80%91%EF%BD%9E%2A'

assert type(utf_8_str_to_text(text_to_utf_8_str(text))) is type(text) and uri_str_to_text(text_to_uri_str(text)) == text

print(repr(text_to_stdout_str(text)))
# Python 2: '\xb2\xe2\xca\xd4A1\xc4\xe3\xce\xd2\xcb\xfb\xd6\xd0\xce\xc4123!@#\xa3\xa4%\xa3\xa8\xa3\xa9\xa1\xbe\xa1\xbf\xa1\xab*'
# Python 3: '测试A1你我他中文123!@#￥%（）【】～*'

assert type(stdin_str_to_text(text_to_stdout_str(text))) is type(text) and stdin_str_to_text(
    text_to_stdout_str(text)) == text

print(repr(text_to_filesystem_str(text)))
# Python 2: '\xb2\xe2\xca\xd4A1\xc4\xe3\xce\xd2\xcb\xfb\xd6\xd0\xce\xc4123!@#\xa3\xa4%\xa3\xa8\xa3\xa9\xa1\xbe\xa1\xbf\xa1\xab*'
# Python 3: '测试A1你我他中文123!@#￥%（）【】～*'

assert type(utf_8_str_to_text(text_to_utf_8_str(text))) is type(text) and filesystem_str_to_text(
    text_to_filesystem_str(text)) == text

Contributing

Contributions are welcome! Please submit pull requests or open issues on the GitHub repository.

License

This project is licensed under the MIT License.