Fix jinja2 issue with editable build

[tfiedor]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

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@@           Coverage Diff            @@
##             devel     #235   +/-   ##
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  Coverage         ?   99.12%           
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  Files            ?      147           
  Lines            ?    10001           
  Branches         ?        0           
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  Hits             ?     9913           
  Misses           ?       88           
  Partials         ?        0           

Flag	Coverage Δ
coverage-3.10	99.12% <100.00%> (?)
coverage-3.11	99.12% <100.00%> (?)
coverage-3.9	99.10% <100.00%> (?)

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[JiriPavela]

Looks good. I'm wondering whether we should perhaps add at least one tox environment to test editable installs as well, so that we can somewhat reliably discover such issues early.

[tfiedor]

Looks good. I'm wondering whether we should perhaps add at least one tox environment to test editable installs as well, so that we can somewhat reliably discover such issues early.

Good idea, done.