Hi @philschmid. Thank you for taking some time to this issue.
Even if your idea didn’t work, it helped me in finding the solution.
In fact, testing your idea, I got again an error message like (...) Couldn't create temporary file /tmp/apt.conf... (...). Then, I did a search and found this post (Solve the error: couldn’t create temporary file / TMP / apt.conf.irqbcz) that says to run the following command to solve the problem:
chmod 777 /tmp
Thus, I changed the content of my script tesseract.py to this one:
import os
os.system('chmod 777 /tmp')
os.system('apt-get update -y')
os.system('apt-get install tesseract-ocr -y')
os.system('pip install -q pytesseract')
if __name__ == "__main__":
print("YES")
… and it worked! (see what was printed)
Get:1 http://security.ubuntu.com/ubuntu focal-security InRelease [114 kB]
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Reading package lists...
Reading package lists...
Building dependency tree...
Reading state information...
The following additional packages will be installed:
liblept5 libopenjp2-7 libtesseract4 tesseract-ocr-eng tesseract-ocr-osd
The following NEW packages will be installed:
liblept5 libopenjp2-7 libtesseract4 tesseract-ocr tesseract-ocr-eng
tesseract-ocr-osd
0 upgraded, 6 newly installed, 0 to remove and 5 not upgraded.
Need to get 7227 kB of archives.
After this operation, 22.8 MB of additional disk space will be used.
Get:1 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libopenjp2-7 amd64 2.3.1-1ubuntu4.20.04.1 [141 kB]
Get:2 http://archive.ubuntu.com/ubuntu focal/universe amd64 liblept5 amd64 1.79.0-1 [999 kB]
Get:3 http://archive.ubuntu.com/ubuntu focal/universe amd64 libtesseract4 amd64 4.1.1-2build2 [1237 kB]
Get:4 http://archive.ubuntu.com/ubuntu focal/universe amd64 tesseract-ocr-eng all 1:4.00~git30-7274cfa-1 [1598 kB]
Get:5 http://archive.ubuntu.com/ubuntu focal/universe amd64 tesseract-ocr-osd all 1:4.00~git30-7274cfa-1 [2990 kB]
Get:6 http://archive.ubuntu.com/ubuntu focal/universe amd64 tesseract-ocr amd64 4.1.1-2build2 [262 kB]
debconf: delaying package configuration, since apt-utils is not installed
Fetched 7227 kB in 1s (6070 kB/s)
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Preparing to unpack .../0-libopenjp2-7_2.3.1-1ubuntu4.20.04.1_amd64.deb ...
Unpacking libopenjp2-7:amd64 (2.3.1-1ubuntu4.20.04.1) ...
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Unpacking liblept5:amd64 (1.79.0-1) ...
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Unpacking tesseract-ocr (4.1.1-2build2) ...
Setting up tesseract-ocr-eng (1:4.00~git30-7274cfa-1) ...
Setting up libopenjp2-7:amd64 (2.3.1-1ubuntu4.20.04.1) ...
Setting up tesseract-ocr-osd (1:4.00~git30-7274cfa-1) ...
Setting up liblept5:amd64 (1.79.0-1) ...
Setting up libtesseract4:amd64 (4.1.1-2build2) ...
Setting up tesseract-ocr (4.1.1-2build2) ...
Processing triggers for libc-bin (2.31-0ubuntu9.9) ...
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv