- Documentation
- Reference manual
- Packages
- SWI-Prolog Python interface
- library(janus): Call Python from Prolog
- py_version/0
- py_call/1
- py_call/2
- py_call/3
- py_iter/2
- py_iter/3
- py_is_object/1
- py_free/1
- py_with_gil/1
- py_func/3
- py_func/4
- py_dot/4
- py_dot/5
- values/3
- keys/2
- key/2
- items/2
- py_shell/0
- py_pp/1
- py_pp/2
- py_pp/3
- py_obj_dir/2
- py_obj_dict/2
- py_initialize/3
- py_lib_dirs/1
- py_add_lib_dir/1
- py_add_lib_dir/2
- Handling Python errors in Prolog
- Janus and virtual environments (venv)
- library(janus): Call Python from Prolog
- SWI-Prolog Python interface
[det]py_add_lib_dir(+Dir)first or last. py_add_lib_dir/1
adds the directory as last.
Dir is in Prolog notation. The added directory is converted to an absolute path using the OS notation.
A flexible way to add the directory holding the current Prolog file to the Python search path is in the template below. The here/0 predicate can be replaced by any predicate defined in the file, either above or below the initializing/1 directive. A simple name like here/0 is good style when this code is part of a Prolog module.
here.
:- initialization
( source_file(here, File),
file_directory_name(File, Dir),
py_add_lib_dir(Dir, first)
).