How can I remove everything in a string until a character(s) are seen in Python -

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say have string , want remove rest of string before or after characters seen

for example, strings have 'egg' in them:

"have egg please" "my eggs good"

i want get:

"egg please" "eggs good"

and same question how can delete string in front of characters?

you can use str.find method simple indexing :

>>> s="have egg please" >>> s[s.find('egg'):] 'egg please'

note str.find returns -1 if doesn't find sub string , returns last character of string.so if not sure string contain sub string better check value of str.find before using it.

>>> def slicer(my_str,sub): ...   index=my_str.find(sub) ...   if index !=-1 : ...         return my_str[index:]  ...   else : ...         raise exception('sub string not found!') ...  >>>  >>> slicer(s,'egg') 'egg please' >>> slicer(s,'apple') sub string not found!

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