capybara/virtualenv/lib/python2.7/site-packages/pip/_vendor/pkg_resources/__init__.py
def insert_on(self, path, loc = None):
        """Insert self.location in path before its nearest parent directory"""

        loc = loc or self.location
        if not loc:
            return

        nloc = _normalize_cached(loc)
        bdir = os.path.dirname(nloc)
        npath= [(p and _normalize_cached(p) or p) for p in path]

        for p, item in enumerate(npath):
            if item == nloc:
                break
            elif item == bdir and self.precedence == EGG_DIST:
                # if it's an .egg, give it precedence over its directory
                if path is sys.path:
                    self.check_version_conflict()
                path.insert(p, loc)
                npath.insert(p, nloc)
                break
        else:
            if path is sys.path:
                self.check_version_conflict()
            path.append(loc)
            return

        # p is the spot where we found or inserted loc; now remove duplicates
        while True:
            try:
                np = npath.index(nloc, p+1)
            except ValueError:
                break
            else:
                del npath[np], path[np]
                # ha!
                p = np

        return
def insert_on(self, path, loc = None):
        """Insert self.location in path before its nearest parent directory"""

        loc = loc or self.location
        if not loc:
            return

        nloc = _normalize_cached(loc)
        bdir = os.path.dirname(nloc)
        npath= [(p and _normalize_cached(p) or p) for p in path]

        for p, item in enumerate(npath):
            if item == nloc:
                break
            elif item == bdir and self.precedence == EGG_DIST:
                # if it's an .egg, give it precedence over its directory
                if path is sys.path:
                    self.check_version_conflict()
                path.insert(p, loc)
                npath.insert(p, nloc)
                break
        else:
            if path is sys.path:
                self.check_version_conflict()
            path.append(loc)
            return

        # p is the spot where we found or inserted loc; now remove duplicates
        while True:
            try:
                np = npath.index(nloc, p+1)
            except ValueError:
                break
            else:
                del npath[np], path[np]
                # ha!
                p = np

        return
def insert_on ( self , path , loc = None ) : loc = loc or self . location if not loc : return nloc = _normalize_cached ( loc ) bdir = os . path . dirname ( nloc ) npath = [ ( p and _normalize_cached ( p ) or p ) for p in path ] for p , item in enumerate ( npath ) : if item == nloc : break elif item == bdir and self . precedence == EGG_DIST : # if it's an .egg, give it precedence over its directory if path is sys . path : self . check_version_conflict ( ) path . insert ( p , loc ) npath . insert ( p , nloc ) break else : if path is sys . path : self . check_version_conflict ( ) path . append ( loc ) return # p is the spot where we found or inserted loc; now remove duplicates while True : try : np = npath . index ( nloc , p + 1 ) except ValueError : break else : del npath [ np ] , path [ np ] # ha! p = np return
Insert self.location in path before its nearest parent directory
Insert self . location in path before its nearest parent directory