35 # PYTHONPATH        -- [in] sysconfig.get_config_var(...)
156 # preprocessor variable PYTHONPATH is used to construct a path.  Each
157 # relative path on PYTHONPATH is prefixed with prefix.  Then the directory
159 # variable $PYTHONPATH is inserted in front of it all. On POSIX, if we are
201     WINREG_KEY = f'SOFTWARE\\Python\\PythonCore\\{PYWINVER}\\PythonPath'
232 pythonpath = config.get('module_search_paths')  variable
479         pythonpath = []  variable
651 # UPDATE pythonpath (sys.path)
660     # If pythonpath was already explicitly set or calculated, we leave it alone.
663     pythonpath = []  variable
668             pythonpath.append(abspath(p))
677         pythonpath.append(joinpath(library_dir, ZIP_LANDMARK))
680         pythonpath.append(joinpath(PREFIX, ZIP_LANDMARK))
682         pythonpath.append(joinpath(prefix, ZIP_LANDMARK))
687         # {HKCU,HKLM}\Software\Python\PythonCore\{winver}\PythonPath
700                             pythonpath.extend(v.split(DELIM))
708                             pythonpath.extend(v.split(DELIM))
714     # Then add any entries compiled into the PYTHONPATH macro.
715     if PYTHONPATH:
716         for p in PYTHONPATH.split(DELIM):
717             pythonpath.append(joinpath(prefix, p))
728             pythonpath.append(platstdlib_dir)
730             pythonpath.append(stdlib_dir)
731         if executable_dir and executable_dir not in pythonpath:
736             pythonpath.append(executable_dir)
739             pythonpath.append(stdlib_dir)
741             pythonpath.append(platstdlib_dir)
743     config['module_search_paths'] = pythonpath
752 # in build directory. This happens after pythonpath calculation.
759 # SET pythonpath FROM _PTH FILE
767     pythonpath = []  variable
777             pythonpath.append(joinpath(pth_dir, line))
778     config['module_search_paths'] = pythonpath