Fix build and tests

[bertsky]

follow-up to #197 and #199

first step: show that CI currently fails

I had to add download=True anyway. It now succeeds.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 52.43%. Comparing base (08a020f) to head (d5724ce).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #200   +/-   ##
=======================================
  Coverage   52.43%   52.43%           
=======================================
  Files          12       12           
  Lines        1377     1377           
  Branches      335      335           
=======================================
  Hits          722      722           
  Misses        531      531           
  Partials      124      124           

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[mikegerber]

Fixed #202 for me, for a manual install of Tesseract (make install-tesseract from here)

[bertsky]

d5724ce was for sirfz/tesserocr#343 (which has now been merged, so we could even go to tesserocr:master).