[New-bugs-announce] [issue36310] pygettext3.7 Does Not Recognize gettext Calls Within fstrings

[Allie Fitter]

New submission from Allie Fitter <fitterj at gmail.com>:

pygettext can't see gettext functions calls when they're inside of an fstring:

foo.py

    from gettext import gettext as _
    
    foo = f'{_("foo bar baz")}'

Running `pygettext3.7 -kgt -d message -D -v -o locales/message.pot foo.py` results in:

locale/message.pot
    # SOME DESCRIPTIVE TITLE.
    # Copyright (C) YEAR ORGANIZATION
    # FIRST AUTHOR <EMAIL at ADDRESS>, YEAR.
    #
    msgid ""
    msgstr ""
    "Project-Id-Version: PACKAGE VERSION\n"
    "POT-Creation-Date: 2019-03-15 21:02-0500\n"
    "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
    "Last-Translator: FULL NAME <EMAIL at ADDRESS>\n"
    "Language-Team: LANGUAGE <LL at li.org>\n"
    "MIME-Version: 1.0\n"
    "Content-Type: text/plain; charset=UTF-8\n"
    "Content-Transfer-Encoding: 8bit\n"
    "Generated-By: pygettext.py 1.5\n"

Change foo.py to:

    from gettext import gettext as _
    
    foo = f'' + _("foo bar baz") + ''


Results in:

    # SOME DESCRIPTIVE TITLE.
    # Copyright (C) YEAR ORGANIZATION
    # FIRST AUTHOR <EMAIL at ADDRESS>, YEAR.
    #
    msgid ""
    msgstr ""
    "Project-Id-Version: PACKAGE VERSION\n"
    "POT-Creation-Date: 2019-03-15 21:05-0500\n"
    "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
    "Last-Translator: FULL NAME <EMAIL at ADDRESS>\n"
    "Language-Team: LANGUAGE <LL at li.org>\n"
    "MIME-Version: 1.0\n"
    "Content-Type: text/plain; charset=UTF-8\n"
    "Content-Transfer-Encoding: 8bit\n"
    "Generated-By: pygettext.py 1.5\n"
    
    
    #: foo.py:3
    msgid "foo bar baz"
    msgstr ""


Running on Ubuntu 18.04.

----------
components: Demos and Tools
messages: 338049
nosy: Allie Fitter
priority: normal
severity: normal
status: open
title: pygettext3.7 Does Not Recognize gettext Calls Within fstrings
type: behavior
versions: Python 3.7

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue36310>
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