Actually, the return value of the latex evaluation should be checked in each go, or
at least for the first run.

…n the

python script for which the report has to be taken. I think this is a problem
of the overall PyReport program, so basically all PyReport variables should
have quite unique names, perhaps with an appropriate prefix. Relabeling
the imported `token` module to `pytoken` solves it for my issue.

In Python, the directory of __FILE__, that is, the directory of
the called python file, shall be in sys.path. This is fixed in
this commit.