python - 如何用字符串仅替换字符串中的整数

Question

如何用字符串仅替换字符串中的整数

我的脚本：

x="the number 1234, today the 909090 of the value of the 90.94"
# by the way the has to be proposed to get the123abd 123the" by a string "ItWasanINT""

re.sub(r'\b\d+(?!\.\d+)\b','ItWasanINT',x)

...不工作

Answer 1

您可能希望排除前面都没有“数字”的数字。组合并且后面没有“.number”组合：

re.sub(r'\b(?<!\d\.)\d+(?!.\d)\b','ItWasanINT', x)

结果：

>>> import re
>>> x="the number 1234, today the 909090 of the value of the 90.94"
>>> re.sub(r'\b(?<!\d\.)\d+(?!\.\d)\b','ItWasanINT',x)
'the number ItWasanINT, today the ItWasanINT of the value of the 90.94'