Python implementation of sed. NOT FINISHED

    searches and replaces text in files

    Args:
        regexpr (str): regx patterns to find
        repl (str): text to replace
        force (bool):
        recursive (bool):
        dpath_list (list): directories to search (defaults to cwd)

def sed(regexpr, repl, force=False, recursive=False, dpath_list=None,
        fpath_list=None, verbose=None, include_patterns=None,
        exclude_patterns=[]):
    """
    Python implementation of sed. NOT FINISHED

    searches and replaces text in files

    Args:
        regexpr (str): regx patterns to find
        repl (str): text to replace
        force (bool):
        recursive (bool):
        dpath_list (list): directories to search (defaults to cwd)
    """
    #_grep(r, [repl], dpath_list=dpath_list, recursive=recursive)
    if include_patterns is None:
        include_patterns = ['*.py', '*.pyx', '*.pxi', '*.cxx', '*.cpp', '*.hxx', '*.hpp', '*.c', '*.h', '*.html', '*.tex']
    if dpath_list is None:
        dpath_list = [os.getcwd()]
    if verbose is None:
        verbose = ut.NOT_QUIET
    if fpath_list is None:
        greater_exclude_dirs = get_standard_exclude_dnames()
        exclude_dirs = []
        fpath_generator = matching_fpaths(
            dpath_list, include_patterns, exclude_dirs,
            greater_exclude_dirs=greater_exclude_dirs,
            recursive=recursive, exclude_patterns=exclude_patterns)
    else:
        fpath_generator = fpath_list
    if verbose:
        print('sed-ing %r' % (dpath_list,))
        print(' * regular expression : %r' % (regexpr,))
        print(' * replacement        : %r' % (repl,))
        print(' * include_patterns   : %r' % (include_patterns,))
        print(' * recursive: %r' % (recursive,))
        print(' * force: %r' % (force,))
        from utool import util_str
        print(' * fpath_list: %s' % (util_str.repr3(fpath_list),))
    regexpr = extend_regex(regexpr)
    #if '\x08' in regexpr:
    #    print('Remember \\x08 != \\b')
    #    print('subsituting for you for you')
    #    regexpr = regexpr.replace('\x08', '\\b')
    #    print(' * regular expression : %r' % (regexpr,))

    # Walk through each directory recursively
    num_changed = 0
    num_files_checked = 0
    fpaths_changed = []
    for fpath in fpath_generator:
        num_files_checked += 1
        changed_lines = sedfile(fpath, regexpr, repl, force, verbose=verbose)
        if changed_lines is not None:
            fpaths_changed.append(fpath)
            num_changed += len(changed_lines)
    import utool as ut
    print('num_files_checked = %r' % (num_files_checked,))
    print('fpaths_changed = %s' % (ut.repr3(sorted(fpaths_changed)),))
    print('total lines changed = %r' % (num_changed,))