/usr/lib/python2.7/dist-packages/trytond/modules/ is in tryton-modules-account-dunning-letter 4.2.0-1.
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..
/usr/lib/python2.7/dist-packages/trytond/modules/account_dunning_letter/
/usr/lib/python2.7/dist-packages/trytond/modules/account_dunning_letter/__init__.py
/usr/lib/python2.7/dist-packages/trytond/modules/account_dunning_letter/dunning.py
/usr/lib/python2.7/dist-packages/trytond/modules/account_dunning_letter/dunning.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_dunning_letter/letter.odt
/usr/lib/python2.7/dist-packages/trytond/modules/account_dunning_letter/locale/
/usr/lib/python2.7/dist-packages/trytond/modules/account_dunning_letter/locale/bg.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_dunning_letter/locale/ca.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_dunning_letter/locale/cs.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_dunning_letter/locale/de.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_dunning_letter/locale/es.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_dunning_letter/locale/es_419.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_dunning_letter/locale/fr.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_dunning_letter/locale/hu_HU.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_dunning_letter/locale/it_IT.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_dunning_letter/locale/ja_JP.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_dunning_letter/locale/lo.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_dunning_letter/locale/lt.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_dunning_letter/locale/nl.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_dunning_letter/locale/pl.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_dunning_letter/locale/pt_BR.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_dunning_letter/locale/ru.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_dunning_letter/locale/sl.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_dunning_letter/locale/zh_CN.po
/usr/lib/python2.7/dist-packages/trytond/modules/account_dunning_letter/tests/
/usr/lib/python2.7/dist-packages/trytond/modules/account_dunning_letter/tests/__init__.py
/usr/lib/python2.7/dist-packages/trytond/modules/account_dunning_letter/tests/scenario_account_dunning_letter.rst
/usr/lib/python2.7/dist-packages/trytond/modules/account_dunning_letter/tests/test_account_dunning_letter.py
/usr/lib/python2.7/dist-packages/trytond/modules/account_dunning_letter/tryton.cfg
/usr/lib/python2.7/dist-packages/trytond/modules/account_dunning_letter/view/
/usr/lib/python2.7/dist-packages/trytond/modules/account_dunning_letter/view/dunning_level_form.xml
/usr/lib/python2.7/dist-packages/trytond/modules/account_dunning_letter/view/dunning_level_list.xml