35 # PYTHONPATH        -- [in] sysconfig.get_config_var(...)
155 # preprocessor variable PYTHONPATH is used to construct a path.  Each
156 # relative path on PYTHONPATH is prefixed with prefix.  Then the directory
158 # variable $PYTHONPATH is inserted in front of it all. On POSIX, if we are
199     WINREG_KEY = f'SOFTWARE\\Python\\PythonCore\\{PYWINVER}\\PythonPath'
230 pythonpath = config.get('module_search_paths')  variable
474         pythonpath = []  variable
643 # UPDATE pythonpath (sys.path)
652     # If pythonpath was already explicitly set or calculated, we leave it alone.
655     pythonpath = []  variable
660             pythonpath.append(abspath(p))
669         pythonpath.append(joinpath(library_dir, ZIP_LANDMARK))
672         pythonpath.append(joinpath(PREFIX, ZIP_LANDMARK))
674         pythonpath.append(joinpath(prefix, ZIP_LANDMARK))
679         # {HKCU,HKLM}\Software\Python\PythonCore\{winver}\PythonPath
692                             pythonpath.extend(v.split(DELIM))
700                             pythonpath.extend(v.split(DELIM))
706     # Then add any entries compiled into the PYTHONPATH macro.
707     if PYTHONPATH:
708         for p in PYTHONPATH.split(DELIM):
709             pythonpath.append(joinpath(prefix, p))
720             pythonpath.append(platstdlib_dir)
722             pythonpath.append(stdlib_dir)
723         if executable_dir and executable_dir not in pythonpath:
728             pythonpath.append(executable_dir)
731             pythonpath.append(stdlib_dir)
733             pythonpath.append(platstdlib_dir)
735     config['module_search_paths'] = pythonpath
744 # in build directory. This happens after pythonpath calculation.
751 # SET pythonpath FROM _PTH FILE
759     pythonpath = []  variable
769             pythonpath.append(joinpath(pth_dir, line))
770     config['module_search_paths'] = pythonpath