Use rspolib instead of polib

[mondeja]

Looks like possible and should improve performance. See https://launchpad.net/pygettextpo

• How to know if libgettextpo is available? Run ctypes.util.find_library("gettextpo") in setup.py. If returns None is not available.

To read PO files without defined charset "MIME-Version: 1.0\\n"\n"Content-Type: text/plain; charset=utf-8\\n" must be added to the headers or the next error will be raised:

Error

>>> gettextpo.PoFile('example.po')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
gettextpo.error: Charset missing in header.
Message conversion to user's charset will not work.

It seems that would fix #153

Example

Input

#
msgid ""
msgstr ""
"Project-Id-Version: Python 3.8\n"
"Report-Msgid-Bugs-To: \n"
"POT-Creation-Date: 2021-10-16 21:42+0200\n"
"PO-Revision-Date: 2021-08-02 19:31+0200\n"
"Last-Translator: \n"
"Language-Team: python-doc-es\n"
"Language: es\n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=utf-8\n"
"Content-Transfer-Encoding: 8bit\n"
"Plural-Forms: nplurals=2; plural=(n != 1)\n"
"Generated-By: Babel 2.9.1\n"

msgid ""
"Support for common temperature sensors (eg, common thermistors, "
"AD595, AD597, AD849x, PT100, PT1000, MAX6675, MAX31855, MAX31856, "
"MAX31865, BME280, HTU21D, and LM75). Custom thermistors and custom "
"analog temperature sensors can also be configured."
msgstr ""
"支持常见的温度传感器（例如，常见的热敏电阻、AD595、AD597、AD849x、PT100、PT1000、MAX6675、MAX31855、MAX31856、MAX31865、BME280、HTU21D和LM75）。还可以配置自定义热敏电阻和自定义模拟温度传感器。"

Code

>>> po = gettextpo.PoFile('input.po')
>>> po.write('output.po')

Output

#
msgid ""
msgstr ""
"Project-Id-Version: Python 3.8\n"
"Report-Msgid-Bugs-To: \n"
"POT-Creation-Date: 2021-10-16 21:42+0200\n"
"PO-Revision-Date: 2021-08-02 19:31+0200\n"
"Last-Translator: \n"
"Language-Team: python-doc-es\n"
"Language: es\n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=utf-8\n"
"Content-Transfer-Encoding: 8bit\n"
"Plural-Forms: nplurals=2; plural=(n != 1)\n"
"Generated-By: Babel 2.9.1\n"

msgid ""
"Support for common temperature sensors (eg, common thermistors, AD595, "
"AD597, AD849x, PT100, PT1000, MAX6675, MAX31855, MAX31856, MAX31865, BME280, "
"HTU21D, and LM75). Custom thermistors and custom analog temperature sensors "
"can also be configured."
msgstr ""
"支持常见的温度传感器（例如，常见的热敏电阻、AD595、AD597、AD849x、PT100、"
"PT1000、MAX6675、MAX31855、MAX31856、MAX31865、BME280、HTU21D和LM75）。还可以"
"配置自定义热敏电阻和自定义模拟温度传感器。"

[mondeja]

I've done some tests in a local branch. Seems that the current implementation of the library is not enough complete. Create the same interface of polib using the library at C level would be the greatest improvement.

[mondeja]

After the developing of md-ulb-pwrap I'm thinking that the best option to optimize the usage of polib is rewriting the library as a CPython extension with Rust.

[mondeja]

I've written rspolib some months ago, so use that.