Merge branch 'master' of...

Merge branch 'master' of https://app-learninglab.inria.fr/moocrr/gitlab/8d53fc3d1862140011f63ba5f84a5830/mooc-rr

journal/diary.md

@@ -15,4 +15,12 @@ Listened to /read material in module2 sequences up to 3 in the morning.
 nicely summarizes material that was earlier presented in this course.  
 Made a start with Jupyter. Tried to print a Python variable in a text session.  
 Uncertain about all the documentation for Jupyter, Python, IPython. It is a lot. Maybe first view the videos in the course.
-<!-- hoqc_date='08apr2020' hoqc_hours = 3 -->
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+<!-- hoqc_date='08apr2020' hoqc_hours = 3 -->
+## 17apr2020
+Since 09apr2020 did only some reading on Python. 
+Removed old versions of Python and installed Python 3.8.2 on Windows with pandas, numpy and PyScripter.  
+Also created an 'addressbook'  sqlite database with the R package `rsqlite` that also should be available with Python code.  
+Today restarted the course with checking what material to read concerning the Jupyter track.  
+Later that day also installed Jupyter but met with problems first with installing `rpy2` and later with using it.
+Apparently something wrong with non-matching versions of `Jupyter`, `Python` and `rpy2`. See [rpy2 issue](https://github.com/rpy2/rpy2/issues/682) on GitHub.
+<!-- hoqc_date='17apr2020' hoqc_hours = 0 -->
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