Use pip --user without sudo

Remove superuser privileges from pip and install packages in ~/.local. This also
prevents hiding pip's packages by system packages, since user packages have
precedence.

Dockerfile

@@ -10,5 +10,5 @@ RUN apt-get update && apt-get install -y  \
   && rm -rf /var/lib/apt/lists/*
 
 # install doxec
-RUN git clone https://srv.sauerburger.com/esel/doxec.git && cd doxec && git checkout v0.1.1 && python3 setup.py install
-
+RUN git clone https://srv.sauerburger.com/esel/doxec.git && cd doxec && git checkout b0ce804f && python3 setup.py install
+RUN echo "" | adduser --disabled-password student 

README.md

@@ -23,15 +23,8 @@ can run the following command line.
 
 ```bash
 sudo apt-get install python3 python3-pip
-sudo pip3 install numpy scipy matplotlib
+pip3 install --user numpy scipy matplotlib
 ```
-
-This installs the most recent versions these three packages. If you install the
-packages via ubuntus package manager, you will get older version. Ubuntu's
-packages can hide the more up-to-date ones installed by pip3. My personal
-recommandations is to always use pip and never install python packages via
-ubuntus package manager if you want to use recent version of the packages.
-
 <!--
 Doxec in a docker container needs a slightly different command, please keep them
 in-sync.
@@ -40,7 +33,8 @@ in-sync.
 ```bash
 $ apt-get update
 $ apt-get -y install python3 python3-pip
-$ pip3 install numpy scipy matplotlib
+$ su student
+$ pip3 install --user numpy scipy matplotlib
 ```
 -->