How to use the macholib.util.in_system_path function in macholib

def in_system_path(filename):
    """
    Return True if the file is in a system path
    """
    return macholib.util.in_system_path(filename)

def not_system_filter(module):
    """
    Return False if the module is located in a system directory
    """
    return not in_system_path(module.filename)

def locate(self, filename):
        if in_system_path(filename):
            return filename
        if filename.startswith(self.base):
            return filename
        for base in self.excludes:
            if filename.startswith(base):
                return filename
        if filename in self.changemap:
            return self.changemap[filename]
        info = framework_info(filename)
        if info is None:
            res = self.copy_dylib(filename)
            self.changemap[filename] = res
            return res
        else:
            res = self.copy_framework(info)
            self.changemap[filename] = res

def locate(self, filename):
        if in_system_path(filename):
            return filename
        if filename.startswith(self.base):
            return filename
        for base in self.excludes:
            if filename.startswith(base):
                return filename
        if filename in self.changemap:
            return self.changemap[filename]
        info = framework_info(filename)
        if info is None:
            res = self.copy_dylib(filename)
            self.changemap[filename] = res
            return res
        else:
            res = self.copy_framework(info)
            self.changemap[filename] = res

def locate(self, filename):
        if in_system_path(filename):
            return filename
        if filename.startswith(self.base):
            return filename
        for base in self.excludes:
            if filename.startswith(base):
                return filename
        if filename in self.changemap:
            return self.changemap[filename]
        info = framework_info(filename)
        if info is None:
            res = self.copy_dylib(filename)
            self.changemap[filename] = res
            return res
        else:
            res = self.copy_framework(info)
            self.changemap[filename] = res

def getClass(self, name, cls):
        if in_system_path(name):
            return ExcludedMachO
        for base in self.excludes:
            if name.startswith(base):
                return ExcludedMachO
        return cls

If the current Tcl installation is a Teapot-distributed version of ActiveTcl
    *and* the current platform is OS X, log a non-fatal warning that the
    resulting executable will (probably) fail to run on non-host systems.

    PyInstaller does *not* freeze all ActiveTcl dependencies -- including
    Teapot, which is typically ignorable. Since Teapot is *not* ignorable in
    this case, this function warns of impending failure.

    See Also
    -------
    https://github.com/pyinstaller/pyinstaller/issues/621
    """
    from macholib import util

    # System libraries do not experience this problem.
    if util.in_system_path(tcl_root):
        return

    # Absolute path of the "init.tcl" script.
    try:
        init_resource = [r[1] for r in tcltree if r[1].endswith('init.tcl')][0]
    # If such script could not be found, silently return.
    except IndexError:
        return

    mentions_activetcl = False
    mentions_teapot = False
    with open(init_resource, 'r') as init_file:
        for line in init_file.readlines():
            line = line.strip().lower()
            if line.startswith('#'):
                continue

def getClass(self, name, cls):
        if in_system_path(name):
            return ExcludedMachO
        for base in self.excludes:
            if name.startswith(base):
                return ExcludedMachO
        return cls