ISDIGIT/ISALPHA/... macros, but also undefines the standard functions. As it is, it can't be included in Python.h since that would break 3rd party code that includes Python.h and also uses isdigit.

Python String **isalpha()** 方法是用于字符串处理的内置方法。如果字符串中的所有字符都是字母，isalpha()方法返回“真 ...