manage.py makemessages throws syntax error due to incorrectly generated django.pot

[Hendy Irawan]

This only happens after there are several translations (so it's not happening on a clean project with very few translations).
And I'm on Windows. Seems related to #28409.

(venv) C:\Users\ceefour\git\samara\samaraweb>python manage.py makemessages -l id_ID --keep-pot -v3
examining files with the extensions: .py, .txt and .html
ignoring file .gitignore in .
ignoring file README.md in .
ignoring file 0001_initial.cpython-36.pyc in .\edu\migrations\__pycache__
ignoring file 0002_category.cpython-36.pyc in .\edu\migrations\__pycache__
ignoring file 0003_profile.cpython-36.pyc in .\edu\migrations\__pycache__
ignoring file 0004_profile_price_range.cpython-36.pyc in .\edu\migrations\__pycache__
ignoring file __init__.cpython-36.pyc in .\edu\migrations\__pycache__
ignoring file admin.cpython-36.pyc in .\edu\__pycache__
ignoring file apps.cpython-36.pyc in .\edu\__pycache__
ignoring file models.cpython-36.pyc in .\edu\__pycache__
ignoring file urls.cpython-36.pyc in .\edu\__pycache__
ignoring file urls_root.cpython-36.pyc in .\edu\__pycache__
ignoring file views.cpython-36.pyc in .\edu\__pycache__
ignoring file views_root.cpython-36.pyc in .\edu\__pycache__
ignoring file __init__.cpython-36.pyc in .\edu\__pycache__
ignoring file context_processors.cpython-36.pyc in .\samaraweb\__pycache__
ignoring file middleware.cpython-36.pyc in .\samaraweb\__pycache__
ignoring file settings.cpython-36.pyc in .\samaraweb\__pycache__
ignoring file urls.cpython-36.pyc in .\samaraweb\__pycache__
ignoring file wsgi.cpython-36.pyc in .\samaraweb\__pycache__
ignoring file __init__.cpython-36.pyc in .\samaraweb\__pycache__
ignoring file samara_dev_public_edu_brand.sql in .\snapshot
ignoring file samara_dev_public_edu_category.sql in .\snapshot
ignoring file samara_dev_public_edu_city.sql in .\snapshot
ignoring file samara_dev_public_edu_country.sql in .\snapshot
ignoring file samara_dev_public_edu_place.sql in .\snapshot
ignoring file samara_dev_public_edu_populatedplace.sql in .\snapshot
ignoring file samara_dev_public_edu_profile.sql in .\snapshot
ignoring file samara_dev_public_edu_profile_categories.sql in .\snapshot
ignoring file samara_dev_public_edu_state.sql in .\snapshot
processing file __init__.py in .\edu
processing file admin.py in .\edu
processing file apps.py in .\edu
processing file 0001_initial.py in .\edu\migrations
processing file 0002_category.py in .\edu\migrations
processing file 0003_profile.py in .\edu\migrations
processing file 0004_profile_price_range.py in .\edu\migrations
processing file __init__.py in .\edu\migrations
processing file models.py in .\edu
processing file base.html in .\edu\templates\edu
processing file footer.html in .\edu\templates\edu
processing file header.html in .\edu\templates\edu
processing file home.html in .\edu\templates\edu
processing file index.html in .\edu\templates\edu
processing file loc_detail.html in .\edu\templates\edu
processing file org_detail.html in .\edu\templates\edu
processing file privacy.html in .\edu\templates\edu
processing file terms.html in .\edu\templates\edu
processing file tests.py in .\edu
processing file urls.py in .\edu
processing file urls_root.py in .\edu
processing file views.py in .\edu
processing file views_root.py in .\edu
processing file manage.py in .
processing file __init__.py in .\samaraweb
processing file context_processors.py in .\samaraweb
processing file middleware.py in .\samaraweb
processing file settings.dev.py in .\samaraweb
processing file settings.prd.py in .\samaraweb
processing file settings.py in .\samaraweb
processing file urls.py in .\samaraweb
processing file wsgi.py in .\samaraweb
processing locale id_ID
CommandError: errors happened while running msgmerge
C:\Users\ceefour\git\samara\samaraweb\edu\locale\django.pot:61:3: syntax error
C:\Users\ceefour\git\samara\samaraweb\edu\locale\django.pot:61: keyword "edu" unknown
C:\Users\ceefour\git\samara\samaraweb\edu\locale\django.pot:61: keyword "templates" unknown
C:\Users\ceefour\git\samara\samaraweb\edu\locale\django.pot:61: keyword "edu" unknown
C:\Users\ceefour\git\samara\samaraweb\edu\locale\django.pot:61: keyword "loc_detail" unknown
C:\Users\ceefour\git\samara\samaraweb\edu\locale\django.pot:61: keyword "html" unknown
msgmerge: found 6 fatal errors

Sometimes happens with msguniq instead of msgmerge.

Here's a snippet of the generated django.pot, where syntax error occurs (at the second message). Note that all messages up to this point have correct syntax:

#: .\edu\templates\edu\home.html:45 .\edu\templates\edu\index.html:11
#: .\edu\templates\edu\loc_detail.html:11
#, python-format
msgid "Best Nursery & Preschools in %(loc_name)s"
msgstr ""

#: .\edu\templates\edu\home.html:46
 .\edu\templates\edu\loc_detail.html:12
msgid ""
"Your child goes to school soon? It's time to find the favorite nursery/"
"preschool and kindergarten for your child."
msgstr ""

Note that the .po files are fine, and I can run manage.py compilemessages just fine (and I can still create messages in the manual way, but with this feature broken, it's not scalable).
Only makemessages is not working.

gettext:

(venv) C:\Users\ceefour\git\samara\samaraweb>gettext -V
gettext (GNU gettext-runtime) 0.19.8.1
Copyright (C) 1995-1997, 2000-2007 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Written by Ulrich Drepper.
 gettext: write error