Need Help , i can't install python on my rapberry

[LYacineT]

I try ton install python on my raspberry but i have this probleme, do you know what does it means?

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 sudo apt-get install python-dev                                                                                                                      Reading package lists... Done
Building dependency tree
Reading state information... Done
python-dev is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 268 not upgraded.
3 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] Y
Setting up python3-gi (3.14.0-1) ...
Sorry: TypeError: source code string cannot contain null bytes
Sorry: TypeError: source code string cannot contain null bytes
dpkg: error processing package python3-gi (--configure):
 subprocess installed post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of python3-gi-cairo:
 python3-gi-cairo depends on python3-gi (= 3.14.0-1); however:
  Package python3-gi is not configured yet.

dpkg: error processing package python3-gi-cairo (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of gedit:
 gedit depends on python3-gi (>= 3.0); however:
  Package python3-gi is not configured yet.
 gedit depends on python3-gi-cairo (>= 3.0); however:
  Package python3-gi-cairo is not configured yet.

dpkg: error processing package gedit (--configure):
 dependency problems - leaving unconfigured
E: Sub-process /usr/bin/dpkg returned an error code (1)

[alphanumeric]

What OS are you running? Python is already installed in Raspbian.

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python-dev is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 268 not upgraded.

To me that message indicates its already installed and up to date.

[LYacineT]

python 3 is already installed, but i can't install another program, like vlc, i have the same error message,

[alphanumeric]

What OS are you running? If Raspbian, is it the latest version, Pixel?

[texy]

python 3 is already installed, but i can't install another program, like vlc, i have the same error message,

That is now a different subject to the opening post. Show us the exact error message.
Texy

[kusti8]

It may be a bad download where you can just apt-get clean to remove and retry but if it persists for different packages as well it might be a corrupted OS. Try a fresh install and see if that makes it better.