Error installing python

[niki_lauda]

I'm getting the following error on my TPI3 with stretch regarding to the python installation.
Anyone ideas how to resolve this?

Setting up python3.4-minimal (3.4.4-3) ...
Sorry: TypeError: source code string cannot contain null bytes
dpkg: error processing package python3.4-minimal (--configure):
subprocess installed post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of python3.4:
python3.4 depends on python3.4-minimal (= 3.4.4-3); however:
Package python3.4-minimal is not configured yet.

dpkg: error processing package python3.4 (--configure):
dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of python3.4-dev:
python3.4-dev depends on python3.4 (= 3.4.4-3); however:
Package python3.4 is not configured yet.

dpkg: error processing package python3.4-dev (--configure):
dependency problems - leaving unconfigured
Errors were encountered while processing:
python3.4-minimal
python3.4
python3.4-dev
E: Sub-process /usr/bin/dpkg returned an error code (1)