GeezerVison

GH-161706) (#161717)

gh-161705: Prevent shadowing stdlib in gzip/tarfile/zipfile CLI (GH-161706)

Remove sys.path[0] in gzip, tarfile and zipfile command line
interface to prevent shadowing standard library modules from
extracted files.

* Add sys._path0 variable.
* pymain_sys_path_add_path0() sets sys._path0.
* Add runpy._remove_sys_path0().
* gzip, tarfile and zipfile main functions now call
  _remove_sys_path0() to prevent shadowing stdlib modules from
  extracted files.
(cherry picked from commit e891a91)

Co-authored-by: Victor Stinner <[email protected]>
Co-authored-by: Gregory P. Smith <[email protected]>
Co-authored-by: Ethan Furman <[email protected]>
Co-authored-by: Kirill Podoprigora <[email protected]>

#161706) (#161719)

gh-161705: Prevent shadowing stdlib in gzip/tarfile/zipfile CLI (#161706)

Remove sys.path[0] in gzip, tarfile and zipfile command line
interface to prevent shadowing standard library modules from
extracted files.

* Add sys._path0 variable.
* pymain_sys_path_add_path0() sets sys._path0.
* Add runpy._remove_sys_path0().
* gzip, tarfile and zipfile main functions now call
  _remove_sys_path0() to prevent shadowing stdlib modules from
  extracted files.




(cherry picked from commit e891a91)

Co-authored-by: Gregory P. Smith <[email protected]>
Co-authored-by: Ethan Furman <[email protected]>
Co-authored-by: Kirill Podoprigora <[email protected]>

…python#161706)

Remove sys.path[0] in gzip, tarfile and zipfile command line
interface to prevent shadowing standard library modules from
extracted files.

* Add sys._path0 variable.
* pymain_sys_path_add_path0() sets sys._path0.
* Add runpy._remove_sys_path0().
* gzip, tarfile and zipfile main functions now call
  _remove_sys_path0() to prevent shadowing stdlib modules from
  extracted files.

Co-authored-by: Gregory P. Smith <[email protected]>
Co-authored-by: Ethan Furman <[email protected]>
Co-authored-by: Kirill Podoprigora <[email protected]>