s = '1123*#$ 中abc国'
str = re.sub( '[a-zA-Z0-9' ! "#$%&\'()*+,-./:;<=>?@,。?★、…【】《》?“”‘'![\\]^_`{|}~\s]+', " ", s)
# 去除不可见字符
str = re.sub( '[\001\002\003\004\005\006\007\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a]+' , '', x)
print ( str )
# 结果为:中国
string = "123我123456abcdefgABCVDFF?/ ,。,.:;:''';'''[]{}()()《》"
print (string)
123 123456abcdefgABCVDFF / ,。,.:;: ''';''' []{}()()《》
sub_str = re.sub(u "([^\u4e00-\u9fa5\u0030-\u0039\u0041-\u005a\u0061-\u007a])" ,"",string)
print (sub_str)
123 123456abcdefgABCVDFF